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Sample records for san gabriel rivers

  1. Valley aggradation in the San Gabriel Mountains, California: climate change versus catastrophic landslide

    Science.gov (United States)

    Scherler, D.; Lamb, M. P.; Rhodes, E. J.; Avouac, J. P.

    2014-12-01

    The San Gabriel Mountains (SGM) in Southern California, rate amongst the most rapidly uplifting and eroding mountains in the United States. Their steep slopes and sensitivity to wildfires, flash floods, landslides, and debris flows account for imminent hazards to nearby urban areas that might be accentuated by climatic and other environmental changes. Previous studies suggested that river terraces along the North Fork of the San Gabriel River, record temporal variations in sediment supply and river transport capacity that are representative for the SGM and related to climatic changes during the Quaternary. Based on field observations, digital topographic analysis, and dating of Quaternary deposits, we suggest that valley aggradation in the North Fork San Gabriel Canyon was spatially confined and a consequence of the sudden supply of unconsolidated material to upstream reaches by one of the largest known landslides in the SGM. New 10Be-derived surface exposure ages from the landslide deposits, previously assumed to be early to middle Pleistocene in age, indicate at least three Holocene events at ~8-9 ka, ~4-5 ka, and ~0.5-1 ka. The oldest landslide predates the valley aggradation period, which is constrained by existing 14C ages and new luminescence ages to ~7-8 ka. The spatial distribution, morphology, and sedimentology of the river terraces are consistent with deposition from far-travelling debris flows that originated within the landslide deposits. Valley aggradation in the North Fork San Gabriel Canyon therefore resulted from locally enhanced sediment supply that temporarily overwhelmed river capacity but the lack of similar deposits in other parts of the SGM argues against a regional climatic signal. So far, there exists no evidence that in the San Gabriel Mountains, climatic changes can cause sustained increases in hillslope sediment supply that lead to river aggradation and terrace formation.

  2. Post-Miocene Right Separation on the San Gabriel and Vasquez Creek Faults, with Supporting Chronostratigraphy, Western San Gabriel Mountains, California

    Science.gov (United States)

    Beyer, Larry A.; McCulloh, Thane H.; Denison, Rodger E.; Morin, Ronald W.; Enrico, Roy J.; Barron, John A.; Fleck, Robert J.

    2009-01-01

    The right lateral San Gabriel Fault Zone in southern California extends from the northwestern corner of the Ridge Basin southeastward to the eastern end of the San Gabriel Mountains. It bifurcates to the southeast in the northwestern San Gabriel Mountains. The northern and older branch curves eastward in the range interior. The southern younger branch, the Vasquez Creek Fault, curves southeastward to merge with the Sierra Madre Fault Zone, which separates the San Gabriel Mountains from the northern Los Angeles Basin margin. An isolated exposure of partly macrofossiliferous nearshore shallow-marine sandstone, designated the Gold Canyon beds, is part of the southwest wall of the fault zone 5.5 km northwest of the bifurcation. These beds contain multiple subordinate breccia-conglomerate lenses and are overlain unconformably by folded Pliocene-Pleistocene Saugus Formation fanglomerate. The San Gabriel Fault Zone cuts both units. Marine macrofossils from the Gold Canyon beds give an age of 5.2+-0.3 Ma by 87Sr/86Sr analyses. Magnetic polarity stratigraphy dates deposition of the overlying Saugus Formation to between 2.6 Ma and 0.78 Ma. Distinctive metaplutonic rocks of the Mount Lowe intrusive suite in the San Gabriel Range are the source of certain clasts in both the Gold Canyon beds and Saugus Formation. Angular clasts of nondurable Paleocene sandstone also occur in the Gold Canyon beds. The large size and angularity of some of the largest of both clast types in breccia-conglomerate lenses of the beds suggest landslides or debris flows from steep terrain. Sources of Mount Lowe clasts, originally to the north or northeast, are now displaced southeastward by faulting and are located between the San Gabriel and Vasquez Creek faults, indicating as much as 12+-2 km of post-Miocene Vasquez Creek Fault right separation, in accord with some prior estimates. Post-Miocene right slip thus transferred onto the Vasquez Creek Fault southeast of the bifurcation. The right separation

  3. 77 FR 63302 - San Gabriel Valley Water Company dba, Fontana Water Company; Notice of Application Accepted for...

    Science.gov (United States)

    2012-10-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission San Gabriel Valley Water Company dba, Fontana Water Company; Notice of.... d. Applicant: San Gabriel Valley Water Company dba, Fontana Water Company. e. Name of...

  4. Draft Genome Sequence of "Candidatus Liberibacter asiaticus" from a Citrus Tree in San Gabriel, California.

    Science.gov (United States)

    Wu, F; Kumagai, L; Liang, G; Deng, X; Zheng, Z; Keremane, M; Chen, J

    2015-12-23

    The draft genome sequence of "Candidatus Liberibacter asiaticus" strain SGCA5 from an orange citrus tree in San Gabriel, California, is reported here. SGCA5 has a genome size of 1,201,445 bp, a G+C content of 36.4%, 1,152 predicted open reading frames (ORFs), and 42 RNA genes.

  5. Influence of San Gabriel submarine canyon on narrow-shelf sediment dynamics, southern California

    Science.gov (United States)

    Karl, Herman A.

    1980-01-01

    Variations in the concentration of total suspended particulate matter (TSM) collected 1 m above bottom, changes in vertical profiles of light transmission, and substrate textural patterns reveal a corridor for preferential sediment transport on San Pedro continental shelf, California. During the winter, this corridor, designated the preferential transport corridor (PTC), is defined by higher concentrations of TSM relative to the rest of the shelf and extends for 10-15 km from the inner shelf to the head of San Gabriel Submarine Canyon. Vertical profiles of light transmission within the PTC suggest density stratification throughout the water column and apparent mixing in the upper 15-20 m of water column on either side of the PTC. The PTC is not as fully developed during the summer. Excursions in isopleths of substrate textural variables perpendicular to isobaths in the PTC suggest that although the PTC is seasonally episodic, it recurs regularly over a longer period.

  6. Status of groundwater quality in the San Fernando--San Gabriel study unit, 2005--California GAMA Priority Basin Project

    Science.gov (United States)

    Land, Michael; Kulongoski, Justin T.; Belitz, Kenneth

    2012-01-01

    Groundwater quality in the approximately 460-square-mile San Fernando--San Gabriel (FG) study unit was investigated as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study area is in Los Angeles County and includes Tertiary-Quaternary sedimentary basins situated within the Transverse Ranges of southern California. The GAMA Priority Basin Project is being conducted by the California State Water Resources Control Board in collaboration with the U.S. Geological Survey (USGS) and the Lawrence Livermore National Laboratory. The GAMA FG study was designed to provide a spatially unbiased assessment of the quality of untreated (raw) groundwater in the primary aquifer systems (hereinafter referred to as primary aquifers) throughout California. The assessment is based on water-quality and ancillary data collected in 2005 by the USGS from 35 wells and on water-quality data from the California Department of Public Health (CDPH) database. The primary aquifers were defined by the depth interval of the wells listed in the CDPH database for the FG study unit. The quality of groundwater in primary aquifers may be different from that in the shallower or deeper water-bearing zones; shallow groundwater may be more vulnerable to surficial contamination. This study assesses the status of the current quality of the groundwater resource by using data from samples analyzed for volatile organic compounds (VOCs), pesticides, and naturally occurring inorganic constituents, such as major ions and trace elements. This status assessment is intended to characterize the quality of groundwater resources in the primary aquifers of the FG study unit, not the treated drinking water delivered to consumers by water purveyors.

  7. Riparian Habitat - San Joaquin River

    Data.gov (United States)

    California Department of Resources — The immediate focus of this study is to identify, describe and map the extent and diversity of riparian habitats found along the main stem of the San Joaquin River,...

  8. Environmental assessment : Rodent control program : San Joaquin river levee : San Luis National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Lower San Joaquin Levee District (LSJLD) requires that six miles of levee situated along the San Joaquin River on San Luis National Wildlife Refuge (SLNWR) be...

  9. Ground-Water Quality Data in the San Fernando-San Gabriel Study Unit, 2005 - Results from the California GAMA Program

    Science.gov (United States)

    Land, Michael; Belitz, Kenneth

    2008-01-01

    Ground-water quality in the approximately 460 square mile San Fernando-San Gabriel study unit (SFSG) was investigated between May and July 2005 as part of the Priority Basin Assessment Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Assessment Project was developed in response to the Groundwater Quality Monitoring Act of 2001 and is being conducted by the U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board (SWRCB). The San Fernando-San Gabriel study was designed to provide a spatially unbiased assessment of raw ground-water quality within SFSG, as well as a statistically consistent basis for comparing water quality throughout California. Samples were collected from 52 wells in Los Angeles County. Thirty-five of the wells were selected using a spatially distributed, randomized grid-based method to provide statistical representation of the study area (grid wells), and seventeen wells were selected to aid in the evaluation of specific water-quality issues or changes in water chemistry along a historic ground-water flow path (understanding wells). The ground-water samples were analyzed for a large number of synthetic organic constituents [volatile organic compounds (VOCs), pesticides and pesticide degradates], constituents of special interest [perchlorate, N-nitrosodimethylamine (NDMA), 1,2,3-trichloropropane (1,2,3-TCP), and 1,4-dioxane], naturally occurring inorganic constituents (nutrients, major and minor ions, and trace elements), radioactive constituents, and microbial indicators. Naturally occurring isotopes (tritium, and carbon-14, and stable isotopes of hydrogen, oxygen, and carbon), and dissolved noble gases also were measured to help identify the source and age of the sampled ground water. Quality-control samples (blanks, replicates, samples for matrix spikes) were collected at approximately one-fifth (11 of 52) of the wells, and the results for these

  10. Groundwater-quality data in the Santa Cruz, San Gabriel, and Peninsular Ranges Hard Rock Aquifers study unit, 2011-2012: results from the California GAMA program

    Science.gov (United States)

    Davis, Tracy A.; Shelton, Jennifer L.

    2014-01-01

    Groundwater quality in the 2,400-square-mile Santa Cruz, San Gabriel, and Peninsular Ranges Hard Rock Aquifers (Hard Rock) study unit was investigated by the U.S. Geological Survey (USGS) from March 2011 through March 2012, as part of the California State Water Resources Control Board (SWRCB) Groundwater Ambient Monitoring and Assessment (GAMA) Program’s Priority Basin Project (PBP). The GAMA-PBP was developed in response to the California Groundwater Quality Monitoring Act of 2001 and is being conducted in collaboration with the SWRCB and Lawrence Livermore National Laboratory (LLNL). The Hard Rock study unit was the 35th study unit to be sampled as part of the GAMA-PBP.

  11. An Archeological Survey of the San Diego River

    Science.gov (United States)

    1975-08-27

    Indian populations and to arable landa and water, Father Serra moved Mission San Diego de Aleala ------ to the site of Nipoguay, an Indian village located...NN ARCHAEOLOGICAL SRE OF THE ~i7 SAN DIEGORIE I If SAN DIEGO STATE UNIVERSITY FOUNDATION DEPARTMENT OF THE ARMY, CORPS OF ENGINEERS kSAN DIEGO STATE...the San Diego River Archeological Survey A. PERFORMING ORG.ý REPORT NUM§ER na 7. AUTHOR(s) 6. CONTRACT OR GRANT NUMBER(*) - I- PERFORMING ORGANIZATION

  12. Relations Between Rainfall and Postfire Debris-Flow and Flood Magnitudes for Emergency-Response Planning, San Gabriel Mountains, Southern California

    Science.gov (United States)

    Cannon, Susan H.; Boldt, Eric M.; Kean, Jason W.; Laber, Jayme; Staley, Dennis M.

    2010-01-01

    Following wildfires, emergency-response and public-safety agencies are faced often with making evacuation decisions and deploying resources both well in advance of each coming winter storm and during storms themselves. Information critical to this process is provided for recently burned areas in the San Gabriel Mountains of southern California. The National Weather Service (NWS) issues Quantitative Precipitation Forecasts (QPFs) for the San Gabriel Mountains twice a day, at approximately 4 a.m. and 4 p.m., along with unscheduled updates when conditions change. QPFs provide estimates of rainfall totals in 3-hour increments for the first 12-hour period and in 6-hour increments for the second 12-hour period. Estimates of one-hour rainfall intensities can be provided in the forecast narrative, along with probable peak intensities and timing, although with less confidence than rainfall totals. A compilation of information on the hydrologic response to winter storms from recently burned areas in southern California steeplands was used to develop a system for classifying the magnitude of the postfire hydrologic response. The four-class system is based on a combination of the reported volume of individual debris flows, the consequences of these events in an urban setting, and the spatial extent of the response to the triggering storm. Threshold rainfall conditions associated with debris flow and floods of different magnitude classes are defined by integrating local rainfall data with debris-flow and flood magnitude information. The within-storm rainfall accumulations (A) and durations (D) above which magnitude I events are expected are defined by A=0.3D0.6. The function A=0.5D0.6 defines the within-storm rainfall accumulations and durations above which a magnitude III event will occur in response to a regional-scale storm, and a magnitude II event will occur if the storm affects only a few drainage basins. The function A=1.0D0.5defines the rainfall conditions above which

  13. Gabriel Bertrand

    OpenAIRE

    Jaime Wisniak

    2014-01-01

    Gabriel Bertrand (1867 -1962), un prolífico bioquímico, farmacéutico y químico Francés, uno de los padres de la enzimología, descubrió un número importante de enzimas, demostró que varias de ellas contenían un metal y la importancia que tienen trazas de muchos elementos en el desarrollo de organismos vivientes. Sintetizó muchas sustancias nuevas por oxidación de azúcares cetónicos y polialcoholes; estudió el veneno de batracios y serpientes y la manera de neutralizar sus efectos; estudió la f...

  14. Gabriel Bertrand

    Directory of Open Access Journals (Sweden)

    Jaime Wisniak

    2014-01-01

    Full Text Available Gabriel Bertrand (1867 -1962, un prolífico bioquímico, farmacéutico y químico Francés, uno de los padres de la enzimología, descubrió un número importante de enzimas, demostró que varias de ellas contenían un metal y la importancia que tienen trazas de muchos elementos en el desarrollo de organismos vivientes. Sintetizó muchas sustancias nuevas por oxidación de azúcares cetónicos y polialcoholes; estudió el veneno de batracios y serpientes y la manera de neutralizar sus efectos; estudió la fermentación de vinos, la transformación de la xilosa en xilita, los fenómenos producidos por el Aspergillus níger, las acciones de las levaduras, alcaloides, etc.

  15. Small scale heterogeneity of Phanerozoic lower crust: evidence from isotopic and geochemical systematics of mid-Cretaceous granulite gneisses, San Gabriel Mountains, southern California

    Science.gov (United States)

    Barth, A.P.; Wooden, J.L.; May, D.J.

    1992-01-01

    An elongate belt of mid-Cretaceous, compositionally banded gneisses and granulites is exposed in Cucamonga terrane, in the southeastern foothills of the San Gabriel Mountains of southern California. Banded gneisses include mafic granulites of two geochemical types: type 1 rocks are similar to high Al arc basalts and andesites but have higher HFSE (high-field-strength-element) abundances and extremely variable LILE (largeion-lithophile-element) abundances, while type 2 rocks are relatively low in Al and similar to alkali rich MOR (midocean-ridge) or intraplate basalts. Intercalated with mafic granulites are paragneisses which include felsic granulites, aluminous gneisses, marble, and calc-silicate gneisses. Type 1 mafic granulites and calcic trondhjemitic pegmatites also oceur as cross-cutting, synmetamorphic dikes or small plutons. Small-scale heterogeneity of deep continental crust is indicated by the lithologic and isotopic diversity of intercalated ortho-and paragneisses exposed in Cucamonga terrane. Geochemical and isotopic data indicate that K, Rb, and U depletion and Sm/Nd fractionation were associated with biotite +/- muscovite dehydration reactions in type 1 mafic granulites and aluminous gneisses during high-grade metamorphism. Field relations and model initial isotopic ratios imply a wide range of protolith ages, ranging from Early Proterozoic to Phanerozoic. ?? 1992 Springer-Verlag.

  16. Hydrologic conditions and terrestrial laser scanning of post-fire debris flows in the San Gabriel Mountains, CA, U.S.A.

    Science.gov (United States)

    Schmidt, Kevin M.; Hanshaw, M.N.; Howle, James F.; Kean, Jason W.; Staley, Dennis M.; Stock, Jonathan D.; Bawden, Gerald W.

    2011-01-01

    To investigate rainfall-runoff conditions that generate post-wildfire debris flows, we instrumented and surveyed steep, small watersheds along the tectonically active front of the San Gabriel Mountains, California. Fortuitously, we recorded runoff-generated debris-flows triggered by one spatially restricted convective event with 28 mm of rainfall falling over 62 minutes. Our rain gages, nested hillslope overland-flow sensors and soil-moisture probes, as well as a time series of terrestrial laser scanning (TLS) revealed the effects of the storm. Hillslope overland-flow response, along two ~10-m long flow lines perpendicular to and originating from a drainage divide, displayed only a 10 to 20 minute delay from the onset of rainfall with accumulated totals of merely 5-10 mm. Depth-stratified soil-moisture probes displayed a greater time delay, roughly 20- 30 minutes, indicating that initial overland flow was Hortonian. Furthermore, a downstream channel-monitoring array recorded a pronounced discharge peak generated by the passage of a debris flow after 18 minutes of rainfall. At this time, only four of the eleven hillslope overlandflow sensors confirmed the presence of surface-water flow. Repeat TLS and detailed field mapping using GPS document how patterns of rainsplash, overland-flow scour, and rilling contributed to the generation of meter-scale debris flows. In response to a single small storm, the debris flows deposited irregular levees and lobate terminal snouts on hillslopes and caused widespread erosion of the valley axis with ground surface lowering exceeding 1.5 m.

  17. Chemical Weathering in the San Gabriel Mountains of California: The influence of erosion rates, soil depth, and transport processes on soil chemical losses (Invited)

    Science.gov (United States)

    Dixon, J. L.; Hartshorn, A. S.; Heimsath, A. M.; Dibiase, R. A.; Whipple, K. X.

    2010-12-01

    What controls the chemical weathering of soils in actively eroding landscapes? In this study, we explore the tectonic signature on soil weathering in the San Gabriel Mountains (SGM) of California, where propagating waves of incision triggered by increasing rock uplift have resulted in distinctly different hillslope morphologies and erosion rates across the range. We quantify downslope patterns of soil weathering across this landscape using sites that bracket low-gradient hillslopes of the stable upland plateau and hillslopes near the margins of the incising landscape. We use elemental mass balances in rock and soil to index the weathered extent of soils, and couple these extents with previously measured 10Be-derived soil production rates to calculate rates of soil weathering and erosion. Across all sites, Tau-Si—the fractional loss or gain of Si from parent material—averages -0.32±0.04, and the weathered extent of soils generally increases with increasing distance from the hillcrest. However, weathering intensities decrease as hillslope gradients steepen beyond 30°. Chemical weathering extents on slopes controlling mineral supply and residence time. These patterns are consistent with previously published predictive models for denudation-weathering relationships based on mineral weathering kinetics. Variable weathering extents in soils indicate that soil weathering in the SGM is largely kinetically limited. This work provides a field-based quantification of the complex relationship between soil erosion and chemical weathering, and together our data suggest that tectonic forcing strongly influences soil weathering rates and extents through its control on erosion rates, transport processes and soil thickness.

  18. San Joaquin River National Wildlife Refuge: Final Comprehensive Conservation Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Comprehensive Conservation Plan (CCP) was written to guide management on San Joaquin River NWR for the next 15 years. This plan outlines the Refuge vision and...

  19. Contaminants investigation of the San Antonio River of Texas, 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In 1992, the U.S. Fish and Wildlife Service conducted a contaminants investigation on fish collected from the San Antonio and Guadalupe Rivers in southeast Texas....

  20. Lessons learned from an emergency release of a post-fire debris-flow hazard assessment for the 2009 Station fire, San Gabriel Mountains, southern California

    Science.gov (United States)

    Cannon, S. H.; Perry, S. C.; Staley, D. M.

    2010-12-01

    The 2009 Station fire burned through portions of the steep, rugged terrain of the San Gabriel Mountains in southern California with a known history of producing large magnitude debris flows following fires. In response to the emergency, the U.S. Geological Survey released an assessment of debris-flow hazards as maps showing estimates of the probability and volume of debris-flow production from 678 burned drainage basins, and the areas that may be inundated by debris flows. The assessment was based on statistical-empirical models developed from post-fire hydrologic-response monitoring data throughout southern California steeplands. The intent of the assessment was to provide state-of-the-art information about potential debris-flow impacts to the public, and quantitative data critical for mitigation, resource-deployment and evacuation decisions by land-management, city and county public-works and flood-control, and emergency-response agencies. Here, we describe a research scientist perspective of the hits and misses associated with the release of this information. Release of the assessment was accompanied by an extensive multi-agency public information campaign. Hazards information was provided to the media and presented at numerous well-attended public meetings organized by local politicians, homeowner and religious associations, city councils, and a multi-agency response team. Meetings targeted to specific ethnic and religious groups resulted in increased attendance by members of these groups. Even with the extensive information campaign, the public response to both mandatory and voluntary evacuation orders was low, and decreased with each sequential winter storm. Interviews with local residents indicated that the low compliance could be attributed to: 1) a lack of a personal understanding of just how dangerous and destructive debris flows can be, 2) inconsistent messaging from different agencies regarding potential magnitudes of a debris-flow response, 3) a poor

  1. 76 FR 70480 - Otay River Estuary Restoration Project, South San Diego Bay Unit of the San Diego Bay National...

    Science.gov (United States)

    2011-11-14

    ... Fish and Wildlife Service Otay River Estuary Restoration Project, South San Diego Bay Unit of the San Diego Bay National Wildlife Refuge, California; Environmental Impact Statement AGENCY: Fish and Wildlife... the San Diego Bay National Wildlife Refuge. This notice advises the public that we intend to gather...

  2. Cien años de soledad, de Gabriel García Márquez. La solitude ontologique d'un monde sans transcendance.

    OpenAIRE

    Gladieu, Marie-Madeleine

    2010-01-01

    Gabriel García Márquez dans son roman Cent ans de solitude présente toute une lignée de personnages qui déambulent au fil de l'histoire pouvant laisser croire dans une premier temps en une apparente chaîne de solidarité qui se délite sous le poids de la mémoire et des événements historiques et ne laissant aucune transcendance qui pourrait apporter une consolation à la solitude absolue de Macondo.

  3. Cien años de soledad, de Gabriel García Márquez. La solitude ontologique d'un monde sans transcendance.

    OpenAIRE

    Gladieu, Marie-Madeleine

    2010-01-01

    Gabriel García Márquez dans son roman Cent ans de solitude présente toute une lignée de personnages qui déambulent au fil de l'histoire pouvant laisser croire dans une premier temps en une apparente chaîne de solidarité qui se délite sous le poids de la mémoire et des événements historiques et ne laissant aucune transcendance qui pourrait apporter une consolation à la solitude absolue de Macondo.

  4. Un poeta de nuestro tiempo: Gabriel Ulloa

    Directory of Open Access Journals (Sweden)

    Julian Garavito

    1967-01-01

    Full Text Available No es muy fácil hablar de poesía sin caer en lugares comunes. No es sencillo dar cuenta de las sensaciones y de las impresiones de un lector ante los poemas, poemillas o sonetos de Gabriel Ulloa, nacido en Bogotá el 31 de diciembre (tal vez La noche ,de San Silvestre, título de un poema suyo de 1930.

  5. Santa Ana River Design Memorandum Number 1. Phase 2. GDM on the Santa Ana River Mainstem, Including Santiago Creek. Volume 7. Hydrology

    Science.gov (United States)

    1988-08-01

    Santa Ysabel Creek near Mesa Grande ................... 53.9 21,100 .... ..... mGS wSp 426 San Luis Rey River at Oceanside ....................... 557...95,600 .... do ..... usS wSp 426 5 San Luis Rey River at Bonsall ......................... 512 128,OO 23 Feb 1691 (US G p 𔃾.7 s 6 San Luis Rey River...San Gabriel River at Camp Rincon ..... 102 i.,o .. ..... ,SGS C.af. i1 63 L 3 Devil’s Canyon above Cogswell Dam..................... . .. 3 -U0 .... do

  6. Gabriel's Other Possessions

    Science.gov (United States)

    Royer, Melvin

    2012-01-01

    Gabriel's Horn is a solid of revolution commonly featured in calculus textbooks as a counter-intuitive example of a solid having finite volume but infinite surface area. Other examples of solids with surprising geometrical finitude relationships have also appeared in the literature. This article cites several intriguing examples (some of fractal…

  7. 33 CFR 162.205 - Suisun Bay, San Joaquin River, Sacramento River, and connecting waters, CA.

    Science.gov (United States)

    2010-07-01

    .... (a) San Joaquin River Deep Water Channel between Suisun Bay and the easterly end of the channel at... Suisun Bay and easterly end of Turning Basin at West Sacramento; use, administration, and navigation—(1... North End Light at latitude 38°06′16″ N., longitude 121°42′32.5″ W.; thence easterly to latitude...

  8. Contaminants investigation of the Guadalupe and San Antonio Rivers of Texas, 1992

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Guadalupe and San Antonio River Basins drain a combined area of 26,547 km2 (10,250 square miles), transporting wastewaters from agricultural, livestock, and...

  9. Biological and associated water-quality data for lower Olmos Creek and upper San Antonio River, San Antonio, Texas, March-October 1990

    Science.gov (United States)

    Taylor, R. Lynn

    1995-01-01

    Biological and associated water-quality data were collected from lower Olmos Creek and upper San Antonio River in San Antonio, Texas, during March-October 1990, the second year of a multiyear data-collection program. The data will be used to document water-quality conditions prior to implementation of a proposal to reuse treated wastewater to irrigate city properties in Olmos Basin and Brackenridge Parks and to augment flows in the Olmos Creek/San Antonio River system.

  10. Determination of toxicity levels in the San Pedro River Watershed, Aguascalientes, Mexico.

    Science.gov (United States)

    Santos-Medrano, Gustavo Emilio; Ramírez-López, Elsa Marcela; Hernández-Flores, Saraí; Azuara-Medina, Paulina Margarita; Rico-Martínez, Roberto

    2007-08-01

    A quantitative study of toxicity levels of the San Pedro River and its main tributaries around the city of Aguascalientes, Mexico was conducted. Our study determined individual CL(50) values for each sampling point at 3 different times of the year corresponding to the main seasons of the year in terms of the hydrological cycle (dry, low rain and high rain season). Those LC(50) values were used to calculate the acute. Toxicity Units (aTU) that allowed us to compare levels of toxicity along the San Pedro River and two of its main tributaries. The sample that showed highest toxicity was IPIVA. This is due to the large quantity of industrial discharges that receives. Its effluent was responsible for the largest contribution of toxicity to the San Pedro River over the three rounds of sampling of this study. Our study classified an important portion of the San Pedro River and two of its main tributaries in toxic, moderately toxic and lightly toxic. No portion of the river studied was free of toxicity, either acute or sublethal. This study demonstrated that in spite of the operation of several water treatment plants along the San Pedro River, for the most part, the water quality of the river is still unacceptable.

  11. River and watershed planning: The San Luis Rey River case study

    Energy Technology Data Exchange (ETDEWEB)

    Micheli, E.

    1994-12-01

    The environmental management of our water resources requires the integration of science and politics, defining problems and solutions for physical resources within a social context. Watershed planning is a term applied to the development of long-term strategies to reconcile a community's goals for water quality, ecological resources, and economic development. Presently, little guidance is available to local governments on how to devise a watershed protection strategy. This study outlines a general approach and refers to an ongoing watershed planning effort on the San Luis Rey River as a case study. The intent is to identify a range of issues to be considered in the development of any river and watershed plan.

  12. Reconciliation Ecology, Rewilding and the San Joaquin River Restoration

    Science.gov (United States)

    Kraus-Polk, A.

    2014-12-01

    Recent events, perhaps reaching their climactic convergence in the current drought, have exposed the fragility and imbalances of the socioecological system of the San Joaquin river. We see that our triumphant march of progress onfolds on a thin, and unstable crust. What lies below is lava. Our agricultural systems progress only while extracting an ever-untenable social and ecological debt. Our successive regimes of accumulation by appropriation have brought us to the brink of ecological exhaustion. Have we reached our day of reckoning? This is not the first time this question has been asked of this particular system of irrigated agriculture? "Insurmountable" ecological barriers have been eyed down and promptly obliterated through magnificent features of physical and social engineering. But lets us consider for a moment that we have at last reached some sort of edge, a threshold past which we experience a sudden socioecological regime shift. Staring out over this edge can we begin to come to terms with the fallacies of our stories, our ignorance, our foolishness? We need an acknowledgement of the needs of the agriculture systems, it's connections and dependencies. What desperate measures are we willing to take in order to sustain this system? How much further can we go? How far is too far? Is there another way to produce and distribute food? We then turn to the past. We imagine the ecosystem as it once was. The pelagic fish species that formed the biological connection between this river system, the delta, the Ocean, the Mountains. What would it mean to restore this diversity and repair these relationships? What would it take to cede control to the non-human forces that sustain these connections? How do we reconcile restraint and the cessation of control with the human needs of the system? How do we rewild our river in such a way that our needs are met in a way that is more resilient and equitable? We will need systems of agriculture and flood control that serve

  13. Isotopic Evidence of Nitrate Sources and its Relationship to Algae in the San Joaquin River, California

    Science.gov (United States)

    Silva, S. R.; Kendall, C.; Young, M. B.; Stringfellow, W. T.; Borglin, S. E.; Kratzer, C. R.; Dahlgren, R. A.; Schmidt, C.; Rollog, M. E.

    2007-12-01

    Many competing demands have been placed on the San Joaquin River including deep water shipping, use as agricultural and drinking water, transport of agricultural and urban runoff, and recreation. These long-established demands limit the management options and increase the importance of understanding the river dynamics. The relationships among sources of water, nitrate, and algae in the San Joaquin River must be understood before management decisions can be made to optimize aquatic health. Isotopic analyses of water samples collected along the San Joaquin River in 2005-2007 have proven useful in assessing these relationships: sources of nitrate, the productivity of the San Joaquin River, and the relationship between nitrate and algae in the river. The San Joaquin River receives water locally from wetlands and agricultural return flow, and from three relatively large tributaries whose headwaters are in the Sierra Nevada. The lowest nitrate concentrations occur during periods of high flow when the proportion of water from the Sierra Nevada is relatively large, reflecting the effect of dilution from the big tributaries and indicating that a large fraction of the nitrate is of local origin. Nitrogen isotopes of nitrate in the San Joaquin River are relatively high (averaging about 12 per mil), suggesting a significant source from animal waste or sewage and/or the effects of denitrification. The d15N of nitrate varies inversely with concentration, indicating that these high isotopic values are also a local product. The d15N values of nitrate from most of the local tributaries is lower than that in the San Joaquin suggesting that nitrate from these tributaries does not account for a significant fraction of nitrate in the river. The source of the non-tributary nitrate must be either small unmeasured surface inputs or groundwater. To investigate whether groundwater might be a significant source of nitrate to the San Joaquin River, groundwater samples are being collected

  14. Chinese mitten crab surveys of San Joaquin River basin and Suisun Marsh, California, 2000

    Science.gov (United States)

    May, Jason T.; Brown, Larry R.

    2001-01-01

    Juvenile Chinese mitten crabs (Eriocheir sinensis) are known to use both brackish and freshwater habitats as rearing areas. The objectives of this study were to examine the habitat use and potential effects of mitten crabs in the freshwater habitats of the San Joaquin River drainage up-stream of the Sacramento-San Joaquin Delta. After several unsuccessful attempts to catch or observe mitten crabs by trapping, electrofishing, and visual observations, the study was redirected to determine the presence of crabs in the San Joaquin River (in the vicinity of Mossdale) and Suisun Marsh. Monthly surveys using baited traps in the San Joaquin River were done from June through November 2000 and in the Suisun Marsh from August through October 2000. No mitten crabs were caught in the San Joaquin River Basin and only one mitten crab was caught in Suisun Marsh. Surveys were conducted at 92 locations in the San Joaquin River Basin by deploying 352 traps for 10,752 hours of trapping effort; in Suisun Marsh, 34 locations were investigated by deploying 150 traps for 3,600 hours of trapping effort. The baited traps captured a variety of organisms, including catfishes (Ictularidae), yellowfin gobies (Acantho-gobius flavimanus), and crayfish (Decapoda). It is unclear whether the failure to capture mitten crabs in the San Joaquin River Basin and Suisun Marsh was due to ineffective trapping methods, or repre-sents a general downward trend in populations of juvenile mitten crabs in these potential rearing areas or a temporary decline related to year-class strength. Available data (since 1998) on the number of mitten crabs entrained at federal and state fish salvage facilities indicate a downward trend in the number of crabs, which may indicate a declining trend in use of the San Joaquin River Basin by juvenile mitten crabs. Continued monitoring for juvenile Chinese mitten crabs in brackish and freshwater portions of the Sacramento-San Joaquin River Basins is needed to better assess the

  15. Hazard assessment of inorganics to endangered fish in the San Juan River, New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Hamilton, S.J.; Buhl, K.J. [National Biological Service, Yankton, SD (United States)

    1995-12-31

    Acute toxicity tests were conducted with larval Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus) in a constituted water quality simulating the San Juan River near Shiprock, New Mexico. Tests were conducted with arsenate, copper, selenate, selenite, zinc, and five mixtures of seven to nine inorganics simulating environmental mixtures reported for sites along the San Juan River (Ojo Amarillo Canyon, Gallegos Canyon, Hogback East Drain, Mancos River, and McElmo Creek). Razorback suckers were significantly more sensitive to arsenate, selenate, selenite, Hogback East Drain mixture, and Ojo Amarillo Canyon mixture than were Colorado squawfish. The Gallegos Canyon mixture had greater than additive, i.e., synergistic, toxicity to both species, the Ojo Amarillo Canyon mixture had less than additive, i.e., antagonistic, toxicity to both species, and the Mancos River and McElmo Creek mixtures had additive toxicity to both species. The Hogback East Drain mixture had additive toxicity to Colorado squawfish, but synergistic toxicity to razorback suckers. The major toxic component in the five mixtures was copper. Comparison of 96-hour LC50 values with a limited number of environmental water concentrations from the San Juan River revealed high hazard ratios for copper and all five environmental mixtures. The high hazard ratios suggest inorganic contaminants could adversely affect larval Colorado squawfish and razorback suckers in the San Juan River at sites receiving elevated inorganics.

  16. The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas

    Science.gov (United States)

    Worsham, McLean L. D.; Gibson, Randy; Huffman, David G.

    2016-01-01

    Abstract The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception of the report of one gastrotrich, and one subterranean platyhelminth that only incidentally occurs in the head spring outflows. The remainder of the soft-bodied metazoan fauna that inhabit the San Marcos River had never been studied. Our study surveyed the annelid fauna and some other soft-bodied invertebrates of the San Marcos River headsprings. At least four species of Hirudinida, two species of Aphanoneura, one species of Branchiobdellida, and 11 (possibly 13) species of oligochaetous clitellates were collected. Other vermiform taxa collected included at least three species of Turbellaria and one species of Nemertea. We provide the results of the first survey of the aquatic annelid fauna of the San Marcos Springs, along with a dichotomous key to these annelids that includes photos of some representative specimens, and line drawings to elucidate potentially confusing diagnostic structures. PMID:27853397

  17. The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas

    Directory of Open Access Journals (Sweden)

    McLean L.D. Worsham

    2016-09-01

    Full Text Available The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception of the report of one gastrotrich, and one subterranean platyhelminth that only incidentally occurs in the head spring outflows. The remainder of the soft-bodied metazoan fauna that inhabit the San Marcos River had never been studied. Our study surveyed the annelid fauna and some other soft-bodied invertebrates of the San Marcos River headsprings. At least four species of Hirudinida, two species of Aphanoneura, one species of Branchiobdellida, and 11 (possibly 13 species of oligochaetous clitellates were collected. Other vermiform taxa collected included at least three species of Turbellaria and one species of Nemertea. We provide the results of the first survey of the aquatic annelid fauna of the San Marcos Springs, along with a dichotomous key to these annelids that includes photos of some representative specimens, and line drawings to elucidate potentially confusing diagnostic structures.

  18. The aquatic annelid fauna of the San Marcos River headsprings, Hays County, Texas.

    Science.gov (United States)

    Worsham, McLean L D; Gibson, Randy; Huffman, David G

    2016-01-01

    The San Marcos River in Central Texas has been well studied and has been demonstrated to be remarkably specious. Prior to the present study, research on free-living invertebrates in the San Marcos River only dealt with hard bodied taxa with the exception of the report of one gastrotrich, and one subterranean platyhelminth that only incidentally occurs in the head spring outflows. The remainder of the soft-bodied metazoan fauna that inhabit the San Marcos River had never been studied. Our study surveyed the annelid fauna and some other soft-bodied invertebrates of the San Marcos River headsprings. At least four species of Hirudinida, two species of Aphanoneura, one species of Branchiobdellida, and 11 (possibly 13) species of oligochaetous clitellates were collected. Other vermiform taxa collected included at least three species of Turbellaria and one species of Nemertea. We provide the results of the first survey of the aquatic annelid fauna of the San Marcos Springs, along with a dichotomous key to these annelids that includes photos of some representative specimens, and line drawings to elucidate potentially confusing diagnostic structures.

  19. Tissue residues and hazards of water-borne pesticides for federally listed and candidate fishes of the Sacramento-San Joaquin River Delta, California: 1993-1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Sacramento-San Joaquin Delta is formed at the confluence of the south-flowing Sacramento River and the north-flowing San Joaquin River. The Delta provides...

  20. Gabriele Veneziano, CERN theoretical physicist

    CERN Multimedia

    Maximilien Brice

    2005-01-01

    Gabriele Veneziano is pictured here during an interview with Paola Catapano for the RAI The Italian TV. Often heralded as the 'father of string theory', a theory that attempts to describe the fundamental building blocks of the Universe, Veneziano is a member of the CERN theory group.

  1. Compounds of emerging concern in the San Antonio River Basin, Texas, 2011–12

    Science.gov (United States)

    Lambert, Rebecca B.; Opsahl, Stephen P.

    2016-11-16

    The City of San Antonio and the surrounding municipalities in Bexar County, Texas, are among the fastest growing cities in the Nation. Increases in residential and commercial development are changing runoff patterns and likely will increase chemical loads into streams. The U.S. Geological Survey, in cooperation with the San Antonio River Authority, evaluated the concentrations and distributional patterns of selected “compounds of emerging concern” (CECs) by collecting and analyzing water-quality samples from 20 sites in the San Antonio River Basin, Tex., during 2011–12. On the basis of their chemical composition or similar uses, the CECs discussed in this fact sheet are wastewater compounds, pharmaceutical compounds (hereinafter referred to as “pharmaceuticals”), and steroidal hormone and sterol compounds (hereinafter referred to as “steroidal hormones and sterols”). Three synoptic sampling events were completed during 2011–12 to analyze for CECs in the San Antonio River Basin. Samples were analyzed for 54 wastewater compounds, 13 pharmaceuticals, 17 steroidal hormones, and 4 sterols. Overall, the concentrations of all CECs analyzed for during this study were low, generally close to or less than the laboratory reporting level.

  2. Water quality modelling in the San Antonio River Basin driven by radar rainfall data

    Directory of Open Access Journals (Sweden)

    Almoutaz Elhassan

    2016-05-01

    Full Text Available Continuous monitoring of stream water quality is needed as it has significant impacts on human and ecological health and well-being. Estimating water quality between sampling dates requires model simulation based on the available geospatial and water quality data for a given watershed. Models such as the Soil and Water Assessment Tool (SWAT can be used to estimate the missing water quality data. In this study, SWAT was used to estimate water quality at a monitoring station near the outlet of the San Antonio River. Precipitation data from both rain gauges and weather radar were used to force the SWAT simulations. Virtual rain gauges which were based on weather radar data were created in the approximate centres of the 163 sub-watersheds of the San Antonio River Basin for SWAT simulations. This method was first tested in a smaller watershed in the middle of the Guadalupe River Basin resulting in increased model efficiency in simulating surface run-off. The method was then applied to the San Antonio River watershed and yielded good simulations for surface run-off (R2 = 0.7, nitrate (R2 = 0.6 and phosphate (R2 = 0.5 at the watershed outlet (Goliad, TX – USGS (United States Geological Survey gauge as compared to observed data. The study showed that the proper use of weather radar precipitation in SWAT model simulations improves the estimation of missing water quality data.

  3. Depth and velocity data in the Lower San Joaquin River, California, 2011-2014

    Science.gov (United States)

    Marineau, Mathieu D.; Wright, Scott A.; Whealdon-Haught, Dan; Kinzel, Paul J.

    2017-01-01

    This data release contains water depth, depth-averaged water velocity, and river stationing (based on 2012 ortho-imagery) in select locations in the Lower San Joaquin River, California, 2011-2014. Between 2011 and 2014, the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service (USFWS), collected approximately 105 channel cross-sections and multiple longitudinal profiles, which comprised of nearly 150,000 streamflow-velocity measurements and 246,000 water-depth measurements in various reaches and subreaches of the Lower San Joaquin River between Orestimba Creek and Sturgeon Bend. The data collection locations in the Lower San Joaquin River were selected based on discussions with USFWS to overlap with their sturgeon monitoring sites and areas that may provide beneficial spawning habitat (such as adjacent to gravel bars or known deep scour holes, etc.). An acoustic Doppler current profiler (ADCP) was primarily used to collect the depth and velocity data, however, in 2011 a multibeam sonar was used to map bathymetry in some areas.

  4. Hydrologic data for the San Juan and Animas River valleys in the Farmington, Aztec, Bloomfield, and Cedar Hill areas, San Juan County, New Mexico

    Science.gov (United States)

    McAda, D.P.; Shelton, S.G.

    1987-01-01

    In July 1985, the U.S. Geological Survey initiated a three-year study in San Juan County, New Mexico, to determine the concentrations of chemical constituents in the groundwater in the San Juan and Animas River valleys and to determine the direction and rate of groundwater flow and its relation to river stage. The study was conducted in cooperation with the San Juan County Commission and the New Mexico Oil Conservation Division. The data that was collected during the first 1-1/2 yr of the study is completed. The report includes well records for 51 wells and water levels from 23 wells, hydrographs from four observation wells and one river stage site, and available chemical analyses from 50 wells and 14 surface water sites. Water samples from six wells and one surface-water site were analyzed for purgeable organic chemicals; none were detected. (Lantz-PTT)

  5. Sediment-quality and water-toxicity data from 10 sites on the Westside Creeks and San Antonio River, San Antonio, Texas, 2014

    Science.gov (United States)

    Crow, Cassi L.; Wilson, Jennifer T.; Kunz, James L.

    2016-01-01

    Sediment samples and samples for water-toxicity testing were collected during 2014 from several streams in San Antonio, Texas known locally as the Westside creeks (Alazán, Apache, Martínez, and San Pedro Creeks) and from the San Antonio River. Samples were collected once during base-flow and again after periods of storm-water runoff (post-storm conditions) to determine baseline sediment- and water-quality conditions. Streambed-sediment samples were analyzed for selected constituents, including trace elements and organic contaminants such as pesticides, polychlorinated biphenyls (PCBs), brominated flame retardants, and polycyclic aromatic hydrocarbons (PAHs).

  6. Estimation of streamflow gains and losses in the lower San Antonio River watershed, south-central Texas, 2006-10

    Science.gov (United States)

    Lizarraga, Joy S.; Wehmeyer, Loren L.

    2012-01-01

    The U.S. Geological Survey (USGS), in cooperation with the San Antonio River Authority, the Evergreen Underground Water Conservation District, and the Goliad County Groundwater Conservation District, investigated streamflow gains and losses during 2006-10 in the lower San Antonio River watershed in south-central Texas. Streamflow gains and losses were estimated using 2006-10 continuous streamflow records from 11 continuous streamflow-gaging stations, and discrete streamflow measurements made at as many as 20 locations on the San Antonio River and selected tributaries during four synoptic surveys during 2006-7. From the continuous streamflow records, the greatest streamflow gain on the lower San Antonio River occurred in the reach from Falls City, Tex., to Goliad, Tex. The greatest streamflow gain on Cibolo Creek during 2006-10 occurred in the reach from near Saint Hedwig, Tex., to Sutherland Springs, Tex. The San Antonio River between Floresville, Tex., and Falls City was the only reach that had an estimated streamflow loss during 2006-10. During all four synoptic streamflow measurement surveys, the only substantially flowing tributary reach to the main stem of the lower San Antonio River was Cibolo Creek. Along the main stem of the lower San Antonio River, verifiable gains larger than the potential measurement error were estimated in two of the four synoptic streamflow measurement surveys. These gaining reaches occurred in the two most downstream reaches of the San Antonio River between Goliad and Farm Road (FM) 2506 near Fannin, Tex., and between FM 2506 near Fannin to near McFaddin. There were verifiable gains in streamflow in Cibolo Creek, between La Vernia, Tex., and the town of Sutherland Springs during all four surveys, estimated at between 4.8 and 14 ft3/s.

  7. The Use of Radar to Improve Rainfall Estimation over the Tennessee and San Joaquin River Valleys

    Science.gov (United States)

    Petersen, Walter A.; Gatlin, Patrick N.; Felix, Mariana; Carey, Lawrence D.

    2010-01-01

    This slide presentation provides an overview of the collaborative radar rainfall project between the Tennessee Valley Authority (TVA), the Von Braun Center for Science & Innovation (VCSI), NASA MSFC and UAHuntsville. Two systems were used in this project, Advanced Radar for Meteorological & Operational Research (ARMOR) Rainfall Estimation Processing System (AREPS), a demonstration project of real-time radar rainfall using a research radar and NEXRAD Rainfall Estimation Processing System (NREPS). The objectives, methodology, some results and validation, operational experience and lessons learned are reviewed. The presentation. Another project that is using radar to improve rainfall estimations is in California, specifically the San Joaquin River Valley. This is part of a overall project to develop a integrated tool to assist water management within the San Joaquin River Valley. This involves integrating several components: (1) Radar precipitation estimates, (2) Distributed hydro model, (3) Snowfall measurements and Surface temperature / moisture measurements. NREPS was selected to provide precipitation component.

  8. The paradigm of paraglacial megafans of the San Juan river basin, Central Andes, Argentina

    Science.gov (United States)

    Suvires, Graciela M.

    2014-11-01

    The spatial distribution and several morphometric characteristics of the Quaternary alluvial fans of the San Juan River, in the province of San Juan, at the Central and Western part of Argentina, have been studied to classify them as paraglacial megafans, as well to ratify its depositional environmental conditions. The high sedimentary load exported by San Juan river from the Central Andes to the foreland depressions is estimated about 3,682,200 hm3. The large alluvial fans of Ullum-Zonda and Tulum valleys were deposited into deep tectonic depressions, during the Upper Pleistocene deglaciation stages. The outcome of collecting remotely sensed data, map and DEM data, geophysical data and much fieldwork gave access to morphometric, morphographic and morphogenetic data of these alluvial fans. The main drainage network was mapped on processed images using QGis (vers.2.0.1). Several fan morphometric parameters were measured, such as the size, the shape, the thickness, the surface areas and the sedimentary volume of exported load. The analyzed fans were accumulated in deep tectonic depressions, where the alluvium fill reaches 700 to 1200 m thick. Such fans do not reach the large size that other world megafans have, and this is due to tectonic obstacles, although the sedimentary fill average volume surpasses 514,000 hm3. The author proposes to consider Ullum-Zonda and Tulum alluvial fans as paraglacial megafans. According to the stratigraphic relationships of the tropical South American Rivers, the author considers that the San Juan paraglacial megafans would have occurred in the period before 24 ka BP , possibly corresponding to Middle Pleniglacial (ca 65-24ka BP). They record colder and more humid conditions compared with the present arid and dry conditions.

  9. Concept Paper for Real-Time Temperature and Water QualityManagement for San Joaquin River Riparian Habitat Restoration

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.

    2004-12-20

    The San Joaquin River Riparian Habitat Restoration Program (SJRRP) has recognized the potential importance of real-time monitoring and management to the success of the San Joaquin River (SJR) restoration endeavor. The first step to realizing making real-time management a reality on the middle San Joaquin River between Friant Dam and the Merced River will be the installation and operation of a network of permanent telemetered gauging stations that will allow optimization of reservoir releases made specifically for fish water temperature management. Given the limited reservoir storage volume available to the SJJRP, this functionality will allow the development of an adaptive management program, similar in concept to the VAMP though with different objectives. The virtue of this approach is that as management of the middle SJR becomes more routine, additional sensors can be added to the sensor network, initially deployed, to continue to improve conditions for anadromous fish.

  10. Quaternary Geochronology, Paleontology, and Archaeology of the Upper San Pedro River Valley, Sonora, Mexico

    Science.gov (United States)

    Gaines, E. P.

    2013-12-01

    This poster presents the results of multi-disciplinary investigations of the preservation and extent of Quaternary fossil-bearing strata in the San Pedro River Valley in Sonora, Mexico. Geologic deposits in the portions of the San Pedro Valley in southern Arizona contain one of the best late Cenozoic fossil records known in North America and the best record of early humans and extinct mammals on the continent. The basin in the U.S. is one of the type locations for the Blancan Land Mammal Age. Hemiphilian and Irvingtonian fossils are common. Rancholabrean remains are widespread. Strata in the valley adjacent to the international border with Mexico have yielded the densest concentration of archaeological mammoth-kill sites known in the western hemisphere. Despite more than 60 years of research in the U.S., however, and the fact that over one third of the San Pedro River lies south of the international boundary, little has been known about the late Cenozoic geology of the valley in Mexico. The study reported here utilized extensive field survey, archaeological documentation, paleontological excavations, stratigraphic mapping and alluvial geochronology to determine the nature and extent of Quaternary fossil-bearing deposits in the portions of the San Pedro Valley in Sonora, Mexico. The results demonstrate that the Plio-Pleistocene fossil -bearing formations known from the valley in Arizona extend into the uppermost reaches of the valley in Mexico. Several new fossil sites were discovered that yielded the remains of Camelids, Equus, Mammuthus, and other Proboscidean species. Late Pleistocene archaeological remains were found on the surface of the surrounding uplands. AMS radiocarbon dating demonstrates the widespread preservation of middle- to late- Holocene deposits. However, the late Pleistocene deposits that contain the archaeological mammoth-kill sites in Arizona are absent in the valley in Mexico, and are now known to be restricted to relatively small portions of

  11. Streamflow gains and losses in the Colorado River in northwestern Burnet and southeastern San Saba Counties, Texas

    Science.gov (United States)

    Braun, Christopher L.; Grzyb, Scott D.

    2015-08-12

    In October 2012, the U.S. Geological Survey (USGS), in cooperation with the Central Texas Groundwater Conservation District, began an assessment to better understand if and where groundwater from the Ellenburger-San Saba aquifer is discharging to the Colorado River, and if and where Colorado River streamflow is recharging the Ellenburger-San Saba aquifer in the study area. Discharge measurements were made to determine if different reaches of the Colorado River in northwestern Burnet and southeastern San Saba Counties are gaining or losing streamflow, the locations and quantities of gains and losses, and whether the gains and losses can be attributed to interaction between the river and the Ellenbuger-San Saba aquifer. To assess streamflow gains and losses, two sets of synoptic gain-loss discharge measurements representing different streamflow conditions were completed. In the first gain-loss streamflow survey during December 3–6, 2012 (hereinafter the fall 2012 gain-loss survey), discharge measurements were made at low-flow conditions ranging from about 30 to 60 cubic feet per second (ft3/s) at seven locations along the Colorado River. In the second gain-loss streamflow survey during May 31–June 1, 2014 (hereinafter the spring 2014 gain-loss survey), discharge measurements were made at high-flow conditions ranging from about 660 to 900 ft3/s at 12 locations along the Colorado River.

  12. Alleviating dam impacts along the transboundary Se San River in northeast Cambodia : a review of the rapid environmental impact assessment on the Cambodian part of the Se San River due to hydropower development in Vietnam (July 2007 version)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2008-02-15

    Probe International has reviewed 2 reports regarding the environmental impact assessment (EIA) on the Cambodian part of the Se San River resulting from hydropower development in Vietnam. Both reports were prepared for Electricity of Vietnam (EVN), the project owner and developer. The operation of 3 large hydro dams on the upper Se San River has disrupted flow in downstream Cambodia where more than 28,000 people depend on the river for drinking water, irrigation, fishing, livestock watering and transportation. Probe International's focus is on mitigating and compensating for affected communities in downstream Cambodia. Their review of the EIAs recommends that Electricity of Vietnam consider switching from peaking to base load operations at its upper Se San hydro dams to mitigate the impacts in downstream Cambodia. The downstream impacts of EVN dams on the Se San River include loss of life, property, livelihood and habitat; malnutrition; loss of wet season rice production; reduced fish catches; food security at risk; loss of fish protein; loss of river bank agriculture; reduced availability of plants for food and medicine; river bank erosion; reservoir erosion and downstream turbidity; increased transportation risks; loss of fisheries habitat; increased pressure on upland forests; disrupted riverine ecosystem; and disrupted fish migration. The EIA recommendations include the re-regulation of the Se San 4A reservoir; operational changes to reduce downstream fluctuations and erosion; monitoring impact of operations on water quantity and quality downstream; algal monitoring; establishment of early warning system for spillway release; prolonging the wet season filling of the reservoir; reducing nutrient inputs to the rivers and reservoirs and a fish stocking program. 6 figs., 1 appendix.

  13. Physical characteristics of the lower San Joaquin River, California, in relation to white sturgeon spawning habitat, 2011–14

    Science.gov (United States)

    Marineau, Mathieu D.; Wright, Scott A.; Whealdon-Haught, Daniel R.; Kinzel, Paul J.

    2017-07-19

    The U.S. Fish and Wildlife Service confirmed that white sturgeon (Acipenser transmontanus) recently spawned in the lower San Joaquin River, California. Decreases in the San Francisco Bay estuary white sturgeon population have led to an increased effort to understand their migration behavior and habitat preferences. The preferred spawning habitat of other white sturgeon (for example, those in the Columbia and Klamath Rivers) is thought to be areas that have high water velocity, deep pools, and coarse bed material. Coarse bed material (pebbles and cobbles), in particular, is important for the survival of white sturgeon eggs and larvae. Knowledge of the physical characteristics of the lower San Joaquin River can be used to preserve sturgeon spawning habitat and lead to management decisions that could help increase the San Francisco Bay estuary white sturgeon population.Between 2011 and 2014, the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, assessed selected reaches and tributaries of the lower river in relation to sturgeon spawning habitat by (1) describing selected spawning reaches in terms of habitat-related physical characteristics (such as water depth and velocity, channel slope, and bed material) of the lower San Joaquin River between its confluences with the Stanislaus and Merced Rivers, (2) describing variations in these physical characteristics during wet and dry years, and (3) identifying potential reasons for these variations.The lower San Joaquin River was divided into five study reaches. Although data were collected from all study reaches, three subreaches where the USFWS collected viable eggs at multiple sites in 2011–12 from Orestimba Creek to Sturgeon Bend were of special interest. Water depth and velocity were measured using two different approaches—channel cross sections and longitudinal profiles—and data were collected using an acoustic Doppler current profiler.During the first year of data collection (water

  14. Organic chemicals in the environment: Pesticides in the San Joaquin River, California: Inputs from dormant sprayed orchards

    Science.gov (United States)

    Domagalski, J.L.; Dubrovsky, N.M.; Kratzer, C.R.

    1997-01-01

    Rainfall-induced runoff mobilized pesticides to the San Joaquin River and its tributaries during a 3.8-cm rainstorm beginning the evening of 7 February and lasting through the morning of 8 Feb. 1993. Two distinct peaks of organophosphate pesticide concentrations were measured at the mouth of the San Joaquin River. These two peaks were attributed to contrasts between the soil texture, basin size, pesticide-use patterns, and hydrology of the eastern and western San Joaquin Valley. The fine soil texture and small size of the western tributary basins contributed to rapid runoff. In western valley streams, diazinon concentrations peaked within hours of the rainfall's end and then decreased because of a combination of dilution with pesticide- free runoff from the nearby Coast Ranges and decreasing concentrations in the agricultural runoff. Peak concentrations for the Merced River, a large tributary of the eastern San Joaquin Valley, occurred at least a day later than those of the western tributary streams. That delay may be due to the presence of well-drained soils in the eastern San Joaquin Valley, the larger size of the Merced River drainage basin, and the management of surface-water drainage networks. A subsequent storm on 18 and 19 February resulted in much lower concentrations of most organophosphate pesticides suggesting that the first storm had mobilized most of the pesticides that were available for rainfall-induced transport.

  15. Preliminary Geologic Map of the San Fernando 7.5' Quadrangle, Southern California: A Digital Database

    Science.gov (United States)

    Yerkes, R.F.

    1997-01-01

    The city of San Fernando sits atop a structurally complex, sedimentologically diverse, and tectonically evolving late Tertiary-Quaternary basin situated within the Transverse Ranges of southern California. The surrounding San Fernando Valley (SFV) contains the headwaters of the Los Angeles River and its tributaries. Prior to the advent of flood control, the valley floor was composed of active alluvial fans and floodplains. Seasonal streams emanating from Pacoima and Big Tujunga Canyons drain the complex western San Gabriel Mountains and deposit coarse, highly permeable alluvium that contains generally high-quality ground water. The more shallow western part derives mainly from Tertiary and pre-Tertiary sedimentary rocks, and is underlain by less permeable, fine-grained deposits containing persistent shallow ground water and poorer water quality. Home of the 1971 San Fernando and the 1994 Northridge earthquakes, the SFV experienced near-record levels of strong ground motion in 1994 that caused widespread damage from strong shaking and ground failure. A new map of late Quaternary deposits of the San Fernando area shows that the SFV is a structural trough that has been filled from the sides, with the major source of sediment being large drainages in the San Gabriel Mountains. Deposition on the major alluvial fan of Tujunga Wash and Pacoima Wash, which issues from the San Gabriel Mountains, and on smaller fans, has been influenced by ongoing compressional tectonics in the valley. Late Pleistocene deposits have been cut by active faults and warped over growing folds. Holocene alluvial fans are locally ponded behind active uplifts. The resulting complex pattern of deposits has a major effect on liquefaction hazards. Young sandy sediments generally are highly susceptible to liquefaction where they are saturated, but the distribution of young deposits, their grain size characteristics, and the level of ground water all are complexly dependent on the tectonics of the valley

  16. Identifying sources of dissolved organic carbon in agriculturally dominated rivers using radiocarbon age dating: Sacramento-San Joaquin River Basin, California

    Science.gov (United States)

    Sickman, James O.; DiGiorgio, Carol L.; Davisson, M. Lee; Lucero, Delores M.; Bergamaschi, Brian A.

    2010-01-01

    We used radiocarbon measurements of dissolved organic carbon (DOC) to resolve sources of riverine carbon within agriculturally dominated landscapes in California. During 2003 and 2004, average Δ14C for DOC was -254‰ in agricultural drains in the Sacramento-San Joaquin Delta, -218‰ in the San Joaquin River, -175‰ in the California State Water Project and -152‰ in the Sacramento River. The age of bulk DOC transiting the rivers of California's Central Valley is the oldest reported for large rivers and suggests wide-spread loss of soil organic matter caused by agriculture and urbanization. Using DAX 8 adsorbent, we isolated and measured 14C concentrations in hydrophobic acid fractions (HPOA); river samples showed evidence of bomb-pulse carbon with average Δ14C of 91 and 76‰ for the San Joaquin and Sacramento Rivers, respectively, with older HPOA, -204‰, observed in agricultural drains. An operationally defined non-HPOA fraction of DOC was observed in the San Joaquin River with seasonally computed Δ14C values of between -275 and -687‰; the source of this aged material was hypothesized to be physically protected organic-matter in high clay-content soils and agrochemicals (i.e., radiocarbon-dead material) applied to farmlands. Mixing models suggest that the Sacramento River contributes about 50% of the DOC load in the California State Water Project, and agricultural drains contribute approximately one-third of the load. In contrast to studies showing stabilization of soil carbon pools within one or two decades following land conversion, sustained loss of soil organic matter, occurring many decades after the initial agricultural-land conversion, was observed in California's Central Valley.

  17. Carbon Sequestration in Mediterranean Tidal Wetlands: San Francisco Bay and the Ebro River Delta (Invited)

    Science.gov (United States)

    Callaway, J.; Fennessy, S.; Ibanez, C.

    2013-12-01

    Tidal wetlands accumulate soil carbon at relatively rapid rates, in large part because they build soil to counteract increases in sea-level rise. Because of the rapid rates of carbon sequestration, there is growing interest in evaluating carbon dynamics in tidal wetlands around the world; however, few measurements have been completed for mediterranean-type tidal wetlands, which tend to have relatively high levels of soil salinity, likely affecting both plant productivity and decomposition rates. We measured sediment accretion and carbon sequestration rates at tidal wetlands in two mediterranean regions: the San Francisco Bay Estuary (California, USA) and the Ebro River Delta (Catalonia, Spain). Sampling sites within each region represented a range of conditions in terms of soil salinity and plant communities, and these sites serve as potential analogs for long-term carbon sequestration in restored wetlands, which could receive credits under emerging policies for carbon management. Within San Francisco Bay, we collected six sediment cores per site at four salt marshes and two brackish tidal wetlands (two transects with three stations per transect at each site) in order to identify spatial variation both within and among wetlands in the Estuary. At the Ebro Delta, individual sediment cores were collected across 14 tidal wetland sites, including salt and brackish marshes from impounded areas, river mouths, coastal lagoon, and open bay settings. Cores were collected to 50 cm, and cores were dated using 137Cs and 210Pb. Most sites within San Francisco accreted 0.3-0.5 cm/yr, with slightly higher rates of accretion at low marsh stations; accretions rates based on 137Cs were slightly higher than those based on 210Pb, likely because of the shorter time frame covered by 137Cs dating. Accretion rates from the Ebro Delta sites were similar although more variable, with rates based on 137Cs ranging from 0.1 to 0.9 cm/yr and reflecting the wide range of conditions and management

  18. Assessment of Goods and Valuation of Ecosystem Services (AGAVES), San Pedro River Basin, U.S./Mexico

    Science.gov (United States)

    A consortium of federal, academic, and non-government organizations (NGO) partners have established a collaborative research enterprise in the San Pedro River Basin to develop methods, standards, and tools to assess and value ecosystem goods and services. The central premise of e...

  19. Assessment of Goods and Valuation of Ecosystem Services (AGAVES), San Pedro River Basin, U.S./Mexico

    Science.gov (United States)

    A consortium of federal, academic, and non-government organizations (NGO) partners have established a collaborative research enterprise in the San Pedro River Basin to develop methods, standards, and tools to assess and value ecosystem goods and services. The central premise of e...

  20. Gravity data from the San Pedro River Basin, Cochise County, Arizona

    Science.gov (United States)

    Kennedy, Jeffrey R.; Winester, Daniel

    2011-01-01

    The U.S. Geological Survey, Arizona Water Science Center in cooperation with the National Oceanic and Atmospheric Administration, National Geodetic Survey has collected relative and absolute gravity data at 321 stations in the San Pedro River Basin of southeastern Arizona since 2000. Data are of three types: observed gravity values and associated free-air, simple Bouguer, and complete Bouguer anomaly values, useful for subsurface-density modeling; high-precision relative-gravity surveys repeated over time, useful for aquifer-storage-change monitoring; and absolute-gravity values, useful as base stations for relative-gravity surveys and for monitoring gravity change over time. The data are compiled, without interpretation, in three spreadsheet files. Gravity values, GPS locations, and driving directions for absolute-gravity base stations are presented as National Geodetic Survey site descriptions.

  1. Quantifying and valuing ecosystem services: An application of ARIES to the San Pedro River basin, USA

    Science.gov (United States)

    Bagstad, Kenneth J.; Semmens, Darius J.; Villa, Ferdinando; Johnson, Gary

    2014-01-01

    A large body of research exists that identifies and values ecosystem services - the benefits that ecosystems provide to humans (MA, 2005) - and their underlying ecological processes. However, the development of software decision support tools that integrate ecology, economics and geography that can be independently used within the public, private, academic and NGO sectors is a more recent phenomenon (Ruhl et al., 2007; Daily et al., 2009). Spurred by growing demand for more sophisticated analysis of the social and economic consequences of land management decisions, the US Department of Interior - Bureau of Land Management (BLM) launched a pilot project with the US Geological Survey (USGS) to assess the usefulness and feasibility of ecosystem service assessment and valuation tools to provide inputs to decision-making. The project analysed ecosystem services in the US portion of the San Pedro River watershed, which includes the BLM-managed San Pedro Riparian National Conservation Area (SPRNCA), to improve the understanding of complex social and ecological relationships that transcend administrative divisions. The BLM manages some 99 million hectares, primarily in the western United States, and 283 million hectares of sub-surface mineral estate. BLM's multiple-use mission requires that it appropriately balance non-extractive uses such as habitat conservation, recreation and archaeological heritage protection and the extractive use of resources such as timber, oil and gas, coal, uranium, and other minerals.

  2. Surface-water quality in the upper San Antonio River Basin, Bexar County, Texas, 1992-98

    Science.gov (United States)

    Banta, J. Ryan; Slattery, Richard N.; Crow, Cassi L.

    2012-01-01

    The potential effects of chemicals in rivers and streams on human health or the ecology have long been a source of concern to water managers. Chemicals in rivers may result from natural or anthropogenic sources (such as industrial or residential practices) which are commonly associated with urbanized watersheds. The U.S. Geological Survey, in cooperation with the San Antonio Water System, examined water-quality data collected from periodic and stormflow sampling events at five sites in the upper San Antonio River Basin during 1992–98. These water-quality data were compared among sites as well as between periodic and stormflow events. The samples were collected from five continuous streamflow-gaging stations in Bexar County, Texas. Samples were analyzed for major ions, nutrients, trace elements, and organic compounds, including selected pesticides.

  3. Effects of stream flow intermittency on riparian vegetation of a semiarid region river (San Pedro River, Arizona)

    Science.gov (United States)

    Stromberg, J.C.; Bagstad, K.J.; Leenhouts, J.M.; Lite, S.J.; Makings, E.

    2005-01-01

    The San Pedro River in the southwestern United States retains a natural flood regime and has several reaches with perennial stream flow and shallow ground water. However, much of the river flows intermittently. Urbanization-linked declines in regional ground-water levels have raised concerns over the future status of the riverine ecosystem in some parts of the river, while restoration-linked decreases in agricultural ground-water pumping are expected to increase stream flows in other parts. This study describes the response of the streamside herbaceous vegetation to changes in stream flow permanence. During the early summer dry season, streamside herbaceous cover and species richness declined continuously across spatial gradients of flow permanence, and composition shifted from hydric to mesic species at sites with more intermittent flow. Hydrologic threshold values were evident for one plant functional group: Schoenoplectus acutus, Juncus torreyi, and other hydric riparian plants declined sharply in cover with loss of perennial stream flow. In contrast, cover of mesic riparian perennials (including Cynodon dactylon, an introduced species) increased at sites with intermittent flow. Patterns of hydric and mesic riparian annuals varied by season: in the early summer dry season their cover declined continuously as flow became more intermittent, while in the late summer wet season their cover increased as the flow became more intermittent. Periodic drought at the intermittent sites may increase opportunities for establishment of these annuals during the monsoonal flood season. During the late summer flood season, stream flow was present at most sites, and fewer vegetation traits were correlated with flow permanence; cover and richness were correlated with other environmental factors including site elevation and substrate nitrate level and particle size. Although perennial-flow and intermittent-flow sites support different streamside plant communities, all of the plant

  4. Conceptual model of sedimentation in the Sacramento-San Joaquin River Delta

    Science.gov (United States)

    Schoellhamer, David H.; Wright, Scott A.; Drexler, Judith Z.

    2012-01-01

    Sedimentation in the Sacramento–San Joaquin River Delta builds the Delta landscape, creates benthic and pelagic habitat, and transports sediment-associated contaminants. Here we present a conceptual model of sedimentation that includes submodels for river supply from the watershed to the Delta, regional transport within the Delta and seaward exchange, and local sedimentation in open water and marsh habitats. The model demonstrates feedback loops that affect the Delta ecosystem. Submerged and emergent marsh vegetation act as ecosystem engineers that can create a positive feedback loop by decreasing suspended sediment, increasing water column light, which in turn enables more vegetation. Sea-level rise in open water is partially countered by a negative feedback loop that increases deposition if there is a net decrease in hydrodynamic energy. Manipulation of regional sediment transport is probably the most feasible method to control suspended sediment and thus turbidity. The conceptual model is used to identify information gaps that need to be filled to develop an accurate sediment transport model.

  5. Effect of tides, river flow, and gate operations on entrainment of juvenile salmon into the interior Sacramento–San Joaquin River Delta

    Science.gov (United States)

    Perry, Russell W.; Brandes, Patricia L.; Burau, Jon R.; Sandstrom, Philip T.; Skalski, John R.

    2015-01-01

    Juvenile Chinook Salmon Oncorhynchus tshawytscha emigrating from natal tributaries of the Sacramento River, California, must negotiate the Sacramento-San Joaquin River Delta (hereafter, the Delta), a complex network of natural and man-made channels linking the Sacramento River with San Francisco Bay. Fish that enter the interior and southern Delta—the region to the south of the Sacramento River where water pumping stations are located—survive at a lower rate than fish that use alternative migration routes. Consequently, total survival decreases as the fraction of the population entering the interior Delta increases, thus spurring management actions to reduce the proportion of fish that are entrained into the interior Delta. To better inform management actions, we modeled entrainment probability as a function of hydrodynamic variables. We fitted alternative entrainment models to telemetry data that identified when tagged fish in the Sacramento River entered two river channels leading to the interior Delta (Georgiana Slough and the gated Delta Cross Channel). We found that the probability of entrainment into the interior Delta through both channels depended strongly on the river flow and tidal stage at the time of fish arrival at the river junction. Fish that arrived during ebb tides had a low entrainment probability, whereas fish that arrived during flood tides (i.e., when the river's flow was reversed) had a high probability of entering the interior Delta. We coupled our entrainment model with a flow simulation model to evaluate the effect of nighttime closures of the Delta Cross Channel gates on the daily probability of fish entrainment into the interior Delta. Relative to 24-h gate closures, nighttime closures increased daily entrainment probability by 3 percentage points on average if fish arrived at the river junction uniformly throughout the day and by only 1.3 percentage points if 85% of fish arrived at night. We illustrate how our model can be used to

  6. Distribution of algae in the San Joaquin River, California, in relation to nutrient supply, salinity and other environmental factors

    Science.gov (United States)

    Leland, H.V.; Brown, L.R.; Mueller, D.K.

    2001-01-01

    1. The taxonomic composition and biomass of the phytoplankton and the taxonomic composition of the phytobenthos of the San Joaquin River and its major tributaries were examined in relation to water chemistry, habitat and flow regime. Agricultural drainage and subsurface flow contribute to a complex gradient of salinity and nutrients in this eutrophic, 'lowland type' river.2. Because of light-limiting conditions for growth, maintenance demands of the algae exceed production during summer and autumn in the San Joaquin River where there is no inflow from tributaries. In contrast to substantial gains in concentration of inorganic nitrogen and soluble reactive phosphorus during the summer of normal-flow years, net losses of algal biomass (2-4 ??g L-1 day-1 chlorophyll a) occurred in a mid-river segment with no significant tributary inflow. However, downstream of a large tributary draining the Sierra Nevada, a substantial net gain in algal biomass (6-11 μg L-1 day-1) occurred in the summer, but not in the spring (loss of 1-6 μg L-1 day-1) or autumn (loss of 2-5 ??g L-1 day-1).3. The phytoplankton was dominated in summer by 'r-selected' centric diatoms (Thalassiosirales), species both tolerant of variable salinity and widely distributed in the San Joaquin River. Pennate diatoms were proportionally more abundant (in biomass) in the winter, spring and autumn. Abundant taxa included the diatoms Cyclotella meneghiniana, Skeletonema cf. potamos, Cyclostephanos invisitatus, Thalassiosira weissflogii, Nitzschia acicularis, N. palea and N. reversa, and the chlorophytes Chlamydomonas sp. and Scenesdesmus quadricauda. Patterns in the abundance of species indicated that assembly of the phytoplankton is limited more by light and flow regime than by nutrient supply.4. The phytobenthos was dominated by larger, more slowly reproducing pennate diatoms. Few of the abundant species are euryhaline. The diatoms Navicula recens and Nitzschia inconspicua and cyanophytes, Oscillatoria spp

  7. Dissolved pesticide concentrations entering the Sacramento-San Joaquin Delta from the Sacramento and San Joaquin Rivers, California, 2012-13

    Science.gov (United States)

    Orlando, James L.; McWayne, Megan; Sanders, Corey; Hladik, Michelle

    2014-01-01

    Surface-water samples were collected from the Sacramento and San Joaquin Rivers where they enter the Sacramento–San Joaquin Delta, and analyzed by the U.S. Geological Survey for a suite of 99 current-use pesticides and pesticide degradates. Samples were collected twice per month from May 2012 through July 2013 and from May 2012 through April 2013 at the Sacramento River at Freeport, and the San Joaquin River near Vernalis, respectively. Samples were analyzed by two separate laboratory methods by using gas chromatography with mass spectrometry or liquid chromatography with tandem mass spectrometry. Method detection limits ranged from 0.9 to 10.5 nanograms per liter (ng/L). A total of 37 pesticides and degradates were detected in water samples collected during the study (18 herbicides, 11 fungicides, 7 insecticides, and 1 synergist). The most frequently detected pesticides overall were the herbicide hexazinone (detected in 100 percent of the samples); 3,4-dichloroaniline (97 percent), which is a degradate of the herbicides diuron and propanil; the fungicide azoxystrobin (83 percent); and the herbicides diuron (72 percent), simazine (66 percent), and metolachlor (64 percent). Insecticides were rarely detected during the study. Pesticide concentrations varied from below the method detection limits to 984 ng/L (hexazinone). Twenty seven pesticides and (or) degradates were detected in Sacramento River samples, and the average number of pesticides per sample was six. The most frequently detected compounds in these samples were hexazinone (detected in 100 percent of samples), 3,4-dichloroaniline (97 percent), azoxystrobin (88 percent), diuron (56 percent), and simazine (50 percent). Pesticides with the highest detected maximum concentrations in Sacramento River samples included the herbicide clomazone (670 ng/L), azoxystrobin (368 ng/L), 3,4-dichloroaniline (364 ng/L), hexazinone (130 ng/L), and propanil (110 ng/L), and all but hexazinone are primarily associated with

  8. Tracing seasonal nitrate sources and loads in the San Joaquin River using nitrogen and oxygen stable isotopes

    Science.gov (United States)

    Young, M. B.; Kendall, C.; Silva, S.; Stringfellow, W. T.; Dahlgren, R. A.

    2007-12-01

    The San Joaquin River (SJR) is a heavily impacted river draining a major agricultural basin in central California. This river receives nitrate inputs from multiple point and non-point sources including agriculture, livestock, waste water treatment plants, septic systems, urban run-off, and natural soil leaching. Nitrate inputs to the SJR may play a significant role in driving algal blooms and reducing overall water quality. The San Joaquin River discharges into the San Francisco Bay-Delta ecosystem, and reduced water quality and large algal blooms in the SJR may play a significant role in driving critically low oxygen levels in the Stockton Deep Water Shipping Channel. Correct identification of the major nitrate sources to the SJR is important for coordinating mitigation efforts throughout the SJR-Delta-San Francisco Bay region. Measurements of the nitrogen and oxygen isotopic composition of nitrate were made monthly to bimonthly from 2005 through 2007 within the Lower SJR, major tributaries, and various other water input sources in order to assess spatial and temporal variations in nitrate inputs and cycling in this heavily impacted watershed. The oxygen and hydrogen isotopic composition of water was also measured to better distinguish water sources and identify changes in water inputs. A very wide range of δ15N-NO3 and δ18O-NO3 values were observed in the main stem SJR and tributaries. The δ15N values ranged from +2 to +17 ‰, and the δ18O values ranged from -1 to +18 ‰. Except for a major agricultural drain site (San Luis Drain), all the sites showed temporal changes in both δ15N-NO3 and δ18O-NO3 much greater than the differences seen between individual sites. In general, the δ15N values of nitrate in the larger tributary rivers (Merced, Tuolumne and Stanislaus) were much lower than those of the main stem SJR from April to May; however, after June the tributary values began to rise toward the values in the main stem river. Some of the highest δ15N-NO3

  9. Design and installation of continuous flow and water qualitymonitoring stations to improve water quality forecasting in the lower SanJoaquin River

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.

    2007-01-20

    This project deliverable describes a number ofstate-of-the-art, telemetered, flow and water quality monitoring stationsthat were designed, instrumented and installed in cooperation with localirrigation water districts to improve water quality simulation models ofthe lower San Joaquin River, California. This work supports amulti-disciplinary, multi-agency research endeavor to develop ascience-based Total Maximum Daily Load for dissolved oxygen in the SanJoaquin River and Stockton Deep Water Ship Channel.

  10. Design and installation of continuous flow and water qualitymonitoring stations to improve water quality forecasting in the lower SanJoaquin River

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.

    2007-01-20

    This project deliverable describes a number ofstate-of-the-art, telemetered, flow and water quality monitoring stationsthat were designed, instrumented and installed in cooperation with localirrigation water districts to improve water quality simulation models ofthe lower San Joaquin River, California. This work supports amulti-disciplinary, multi-agency research endeavor to develop ascience-based Total Maximum Daily Load for dissolved oxygen in the SanJoaquin River and Stockton Deep Water Ship Channel.

  11. Biological and associated water-quality data for lower Olmos Creek and upper San Antonio River, San Antonio, Texas, April - September 1989

    Science.gov (United States)

    Taylor, R. Lynn; Ferreira, Rodger F.

    1995-01-01

    Biological and associated water-quality data were collected from lower Olmos Creek and upper San Antonio River in San Antonio, Texas, during April-September 1989. Benthic macroinvertebrate, periphyton, and phytoplankton communities were sampled at three sites along the Olmos Creek/San Antonio River system. Total mean densities of benthic macroinvertebrates for the three sites ranged from 670 to 10,000 organisms per square meter. The most abundant macroinvertebrates were the class Insecta (insects). Total densities of periphyton ranged from 2,900 to 110,000 cells per square millimeter. Cyanophyta (blue-green algae) and Bacillariophyta (diatoms) were the predominant periphyton organisms. Total densities of phyto- plankton ranged from 5,000 to 47,000 cells per square milliliter. Blue-green algae accounted for more than one- half of the phytoplankton in each sample. Hardness ranged from 160 to 250 milligrams per liter as calcium carbonate, and alkalinity ranged from 130 to 220 milligrams per liter as calcium carbonate. The largest dissolved nitrite concentration was 0.038 milligram per liter. The largest total phosphorus concentration was 0.150 milligram per liter, over one-half of which was dissolved orthophosphate. Total aluminum and total iron were the only trace elements in water to exceed the reporting threshold by large concen- trations. Total aluminum concentrations ranged from 70 to 280 micrograms per liter, and total iron concentrations ranged from 70 to 340 micrograms per liter. Lead was the most prominent trace element in bottom-material samples, with concentrations ranging from 30 to 230 micrograms per gram.

  12. Evaluation of NDVI to assess avian abundance and richness along the upper San Pedro River

    Science.gov (United States)

    McFarland, T.M.; van Riper, Charles; Johnson, G.E.

    2012-01-01

    Remote-sensing models have become increasingly popular for identifying, characterizing, monitoring, and predicting avian habitat but have largely focused on single bird species. The Normalized Difference Vegetation Index (NDVI) has been shown to positively correlate with avian abundance and richness and has been successfully applied to southwestern riparian systems which are uniquely composed of narrow bands of vegetation in an otherwise dry landscape. Desert riparian ecosystems are important breeding and stopover sites for many bird species but have been degraded due to altered hydrology and land management practices. Here we investigated the use of NDVI, coupled with vegetation, to model the avian community structure along the San Pedro River, Arizona. We also investigated how vegetation and physical features measured locally compared to those data that can be gathered through remote-sensing. We found that NDVI has statistically significant relationships with both avian abundance and species richness, although is better applied at the individual species level. However, the amount of variation explained by even our best models was quite low, suggesting that NDVI habitat models may not presently be an accurate tool for extensive modeling of avian communities. We suggest additional studies in other watersheds to increase our understanding of these bird/NDVI relationships.

  13. Human exposure to mercury in San Jorge river basin, Colombia (South America).

    Science.gov (United States)

    Olivero, Jesus; Johnson, Boris; Arguello, Eduardo

    2002-04-22

    During May-September 1999 human hair samples were collected from the village of Caimito, a fishing community of the state of Sucre (Colombia), in the San Jorge River basin area, and analyzed for total mercury (t-Hg) by cold vapor atomic absorption spectroscopy. T-Hg was measured in both male and female people aged 15-65 years, whose diet mainly consists of fish collected in nearby marshes. Average hair t-Hg concentration in people from Caimito was 4.91 +/- 0.55 microg/g (n = 94), similar to the value previously detected in fishermen living in the gold mining area, 50 km east. Males had similar t-Hg concentrations (4.31 +/- 0.42 microg/g; n = 56) to females (5.78 +/- 1.21 microg/g; n = 38) and there was no difference in t-Hg levels between groups of different age. Mercury content in hair was weakly but significantly associated (R = 0.20, P = 0.05) with fish consumption.

  14. Simulation of hydrologic conditions and suspended-sediment loads in the San Antonio River Basin downstream from San Antonio, Texas, 2000-12

    Science.gov (United States)

    Banta, J. Ryan; Ockerman, Darwin J.

    2014-01-01

    Suspended sediment in rivers and streams can play an important role in ecological health of rivers and estuaries and consequently is an important issue for water-resource managers. To better understand suspended-sediment loads and transport in a watershed, the U.S. Geological Survey (USGS), in cooperation with the San Antonio River Authority, developed a Hydrological Simulation Program—FORTRAN model to simulate hydrologic conditions and suspended-sediment loads during 2000–12 for four watersheds, which comprise the overall study area in the San Antonio River Basin (hereinafter referred to as the “USGS–2014 model”). The study area consists of approximately 2,150 square miles encompassing parts of Bexar, Guadalupe, Wilson, Karnes, DeWitt, Goliad, Victoria, and Refugio Counties. The USGS–2014 model was calibrated for hydrology and suspended sediment for 2006–12. Overall, model-fit statistics and graphic evaluations from the calibration and testing periods provided multiple lines of evidence indicating that the USGS–2014 model simulations of hydrologic and suspended-sediment conditions were mostly “good” to “very good.” Model simulation results indicated that approximately 1,230 tons per day of suspended sediment exited the study area and were delivered to the Guadalupe River during 2006–12, of which approximately 62 percent originated upstream from the study area. Sample data and simulated model results indicate that most of the suspended-sediment load in the study area consisted of silt- and clay-sized particles (less than 0.0625 millimeters). The Cibolo Creek watershed was the largest contributor of suspended sediment from the study area. For the entire study area, open/developed land and cropland exhibited the highest simulated soil erosion rates; however, the largest contributions of sediment (by land-cover type) were pasture and forest/rangeland/shrubland, which together composed approximately 80 percent of the land cover of the

  15. Modeling Fall Run Chinook Salmon Populations in the San Joaquin River Basin Using an Artificial Neural Network

    Science.gov (United States)

    Keyantash, J.; Quinn, N. W.; Hidalgo, H. G.; Dracup, J. A.

    2002-12-01

    The number of chinook salmon returning to spawn during the fall run (September-November) were separately modeled for three San Joaquin River tributaries-the Stanislaus, Tuolumne, and Merced Rivers-to determine the sensitivity of salmon populations to hydrologic alterations associated with potential climate change. The modeling was accomplished using a feed-forward artificial neural network (ANN) with error backpropagation. Inputs to the ANN included modeled monthly river temperature and streamflow data for each tributary, and were lagged multiple years to include the effects of antecedent environmental conditions upon populations of salmon throughout their life histories. Temperature and streamflow conditions at downstream locations in each tributary were computed using the California Dept. of Water Resources' DSM-2 model. Inputs to the DSM-2 model originated from regional climate modeling under a CO2 doubling scenario. Annual population data for adult chinook salmon (1951-present) were provided by the California Dept. of Fish and Game, and were used for supervised training of the ANN. It was determined that Stanislaus, Tuolumne and Merced River chinook runs could be impacted by alterations to the hydroclimatology of the San Joaquin basin.

  16. Analysis of the Transport and Fate of Metals Released From the Gold King Mine in the Animas and San Juan Rivers

    Science.gov (United States)

    This project’s objectives were to provide analysis of water quality following the release of acid mine drainage in the Animas and San Juan Rivers in a timely manner to 1) generate a comprehensive picture of the plume at the river system level, 2) help inform future monitoring eff...

  17. Isotopic and Chemical Analysis of Nitrate Source and Cycling in the San Joaquin River, California

    Science.gov (United States)

    Silva, S. R.; Kendall, C.; Bemis, B.; Bergamaschi, B.; Kratzer, C.; Dileanis, P.; Erickson, D.; Avery, E.; Paxton, K.

    2001-12-01

    The sources and cycling of nitrate was investigated during a pilot study at four sites along the San Joaquin River using carbon and nitrogen isotopes of total dissolved and particulate organic matter along with hydrological measurements and various concentration data including chlorophyll-a. The nitrate source, its relationship to phytoplankton, and the effect of the nitrate source and cycling on the isotopic composition of dissolved and particulate organic matter were the primary concerns of the study. Samples were collected between July and October 2000 at (1) Crow's Landing, (2) Laird Park, (3) Vernalis, and (4) upstream of the Merced River. Particulate organic matter samples (POM) were collected on pre-combusted glass fiber filters. Combined dissolved organic and inorganic samples were prepared by roto-evaporating filtered waters (RV samples). Both the RV and the POM samples were acidified to eliminate inorganic carbon. Stable carbon and nitrogen isotopes and C:N ratios of POM in addition to chlorophyll-a concentrations were consistent with POM derived primarily from plankton at all sites and sampling times except in late October during a dam release event. The late October samples showed a shift toward isotopically heavier carbon and lighter nitrogen isotopes and higher C:N ratios reflecting a significant input from non-planktonic (probably terrestrial) sources. About 90 percent of the nitrogen in the RV samples was inorganic, 97 percent of which was in the form of nitrate. Assuming that the nitrogen isotopic composition of the minor organic fraction fell within the range of common organic samples (0 to 25 per mil), the delta 15N value of the RV samples was a close representation of the nitrogen isotopic composition of the nitrate. The POM and RV samples therefore appear to be reasonable proxies for the nitrogen isotopic compositions of plankton and nitrate, respectively. By comparison with other dissolved species, most of the variation in nitrate

  18. Assessment of interim flow water-quality data of the San Joaquin River restoration program and implications for fishes, California, 2009-11

    Science.gov (United States)

    Wulff, Marissa L.; Brown, Larry R.

    2015-01-01

    After more than 50 years of extensive water diversion for urban and agriculture use, a major settlement was reached among the U.S. Departments of the Interior and Commerce, the Natural Resources Defense Council, and the Friant Water Users Authority in an effort to restore the San Joaquin River. The settlement received Federal court approval in October 2006 and established the San Joaquin River Restoration Program, a multi-agency collaboration between State and Federal agencies to restore and maintain fish populations, including Chinook salmon, in the main stem of the river between Friant Dam and the confluence with the Merced River. This is to be done while avoiding or minimizing adverse water supply effects to all of the Friant Division contractors that could result from restoration flows required by the settlement. The settlement stipulates that water- and sediment-quality data be collected to help assess the restoration goals. This report summarizes and evaluates water-quality data collected in the main stem of the San Joaquin River between Friant Dam and the Merced River by the U.S. Bureau of Reclamation for the San Joaquin River Restoration Program during 2009-11. This summary and assessment consider sampling frequency for adequate characterization of variability, sampling locations for sufficient characterization of the San Joaquin River Restoration Program restoration reach, sampling methods for appropriate media (water and sediment), and constituent reporting limits. After reviewing the water- and sediment-quality results for the San Joaquin River Restoration Program, several suggestions were made to the Fisheries Management Work Group, a division of the San Joaquin River Restoration Program that focuses solely on the reintroduction strategies and health of salmon and other native fishes in the river. Water-quality results for lead and total organic carbon exceeded the Surface Water Ambient Monitoring Program Basin Plan Objectives for the San Joaquin Basin

  19. Gabriel del Sarto (Ronchi, Massa, 1972

    Directory of Open Access Journals (Sweden)

    Juan Pérez Andrés

    2017-01-01

    Full Text Available Gabriel del Sarto publica sus primeros poemas en 1998 en el Sesto quaderno di poesia contemporanea a manos de Franco Buffoni. Poco después su nombre empieza a ser frecuente en antologías dedicadas a los nuevos poetas emergentes italianos, como L’opera comune (Atelier, 1999, Poeti di Vent’anni (ed. Mario Santagostini, La Stampa, 2000 y Nuovissima poesia italiana (Mondadori, 2004, editada por Maurizio Cucchi y Antonio Ricciardi, en la que comparte espacio con algunos de los poetas más sobresalientes de su generación, como Silvia Caratti, Francesca Moccia o Alberto Pellegatta. En 2003 publica su primera colección de poemas con el título de I viali (Ed. Atelier, a la que sigue en 2011 el libro Sul vuoto (Transeuropa. Aparte de su faceta como poeta, Gabriel del Sarto es autor de diferentes ensayos sogre el uso y el sentido de la narración en la práctica formativa, como Raccontare storie (con F. Batini, Carocci, 2007 o el manual de escritura creativa Narrazione e invenzione (con S. Giusti y F. Batini, Erickson, 2007

  20. Cadmium and lead levels along the estuarine ecosystem of Tigre River-San Andres Lagoon, Tamaulipas, Mexico.

    Science.gov (United States)

    Vázquez-Sauceda, María de la Luz; Pérez-Castañeda, Roberto; Sánchez-Martínez, Jesús Genaro; Aguirre-Guzmán, Gabriel

    2012-10-01

    Cadmium and lead levels were evaluated in water and sediment along the estuarine ecosystem of Tigre River-San Andres Lagoon (Gulf of Mexico) during September to December 2009. Significant highest metal concentration in water (0.45 mg L(-1) Cd and 3.94 mg L(-1) Pb) and sediment (2.83 mg kg(-1) Cd and 6.61 mg kg(-1) Pb) were found at the mouth of the Tigre River, where the fishing town of El Moron is located. Cadmium levels in sediment were above limits associated with adverse biological effects on aquatic fauna, so negative impacts on natural populations of aquatic organisms would be expected to occur. This in turn could affect the fishery resources inhabiting this ecosystem.

  1. Estimation of potential pollution from mine tailings in the San Pedro River (1993-2005), Mexico-US border

    Science.gov (United States)

    Gómez-Alvarez, Agustín; Meza-Figueroa, Diana; Villalba-Atondo, Arturo I.; Valenzuela-García, Jesús Leobardo; Ramírez-Hernández, Jorge; Almendariz-Tapia, Javier

    2009-06-01

    The San Pedro River (SPR) is located in northern Sonora (Mexico) and southeastern Arizona (USA). SPR is a transboundary river that develops along the Sonora (Mexico) and Arizona (USA) border, and is considered the main source of water for a variety of users (human settlements, agriculture, livestock, and industry). The SPR originates in the historic Cananea mining area, which hosts some of the most important copper mineralizations in Mexico. Acid mine drainage derived from mine tailings is currently reaching a tributary of the SPR near Cananea City, resulting in the contamination of the SPR with heavy metals and sulfates in water and sediments. This study documents the accumulation and distribution of heavy metals in surface water along a segment of the SPR from 1993 to 2005. Total concentrations of Cd, Cu, Fe, Mn, Pb, and Zn in surface waters are above maximum permissible levels in sampling sites near mine tailing deposits. Nevertheless, a significant decrease in the Fe and SO4 2- in surface water (SO4 2-: 7,180-460.39 mg/L; Fe: 1,600-9.51 mg/L) as well as a gradual decrease in the heavy and transition metal content were observed during the period from 1994 to 2005. Approximately 2.3 km downstream of the mine tailings, the heavy metal content of the water drops quickly following an increase in pH values due to the discharging of wastewater into the river. The attenuation of the heavy metal content in surface waters is related to stream sediment precipitation (accompanied by metal coprecipitation and sorption) and water dilution. Determining the heavy metal concentration led to the conclusion that the Cananea mining area and the San Pedro River are ecosystems that are impacted by the mining industry and by untreated wastewater discharges arising from the city of Cananea (Sonora, Mexico).

  2. Physical, chemical, and biological data for detailed study of irrigation drainage in the San Juan River area, New Mexico, 1993-94, with supplemental data, 1991-95

    Science.gov (United States)

    Thomas, C.L.; Lusk, J.D.; Bristol, R.S.; Wilson, R.M.; Shineman, A.R.

    1997-01-01

    In response to increasing concern about the quality of irrigation drainage and its potential effects on fish, wildlife, and human health, the U.S. Department of the Interior formed an interbureau task group to prepare a plan for investigating water- quality problems on irrigation projects sponsored by the Department of the Interior. The San Juan River area in northwestern New Mexico was one of the areas designated for study. Investigators collected water, bottom-sediment, soil, and biological samples at more than 50 sites in the San Juan River area during 1993-94. Sample sites included (1) sites located within Department of the Interior irrigation project service areas, or areas that receive drainage from irrigation projects; (2) reference sites for comparison with irrigation project sites; and (3) sites located within the reach of the San Juan River from Navajo Dam to 10 miles downstream from the dam. The types of habitat sampled included the main stem of the San Juan River, backwater areas adjacent to the San Juan River, tributaries to the San Juan River, ponds, seeps, irrigation-delivery canals, irrigation-drainage canals, a stock tank, and shallow ground water. The types of media sampled included water, bottom sediment, soil, aquatic plants, aquatic invertebrates, amphibians, and fish. Semipermeable-membrane devices were used as a surrogate medium to sample both air and water in some instances. Sample measurements included concentrations of major ions, trace elements, organochlorine pesticides, polychlorinated biphenyls, polycyclic-aromatic-hydrocarbon compounds, and stable isotopes of hydrogen and oxygen. This report presents tables of physical, chemical, and biological data collected for the U.S. Department of the Interior National Irrigation Water-Quality Program. Additionally, supplemental physical, chemical, and biological data collected in association with the Navajo Indian Irrigation Project are presented.

  3. 78 FR 6833 - Final Environmental Impact Statement/Environmental Impact Report for the San Joaquin River...

    Science.gov (United States)

    2013-01-31

    ... covers parts of Fresno, Madera, Merced, and Stanislaus counties. The agricultural water users that would..., Madera, Fresno, San Benito, Santa Clara, Tulare, Kern, Kings, Contra Costa, Alameda, Monterey, and...

  4. Annual compilation and analysis of hydrologic data for Escondido Creek, San Antonio River Basin, Texas

    Science.gov (United States)

    Reddy, D.R.

    1971-01-01

    History of Small Watershed Projects in Texas The U.S. Soil Conservation Service is actively engaged in the installation of flood and soil erosion reducing measures in Texas under the authority of the "Flood Control Act of 1936 and 1944" and "Watershed Protection and Flood Prevention Act" (Public Law 566), as amended. The Soil Conservation Service has found a total of approximately 3,500 floodwater-retarding structures to be physically and economically feasible in Texas. As of September 30, 1970, 1,439 of these structures had been built. This watershed-development program will have varying but important effects on the surface and ground-water resources of river basins, especially where a large number of the floodwater-retarding structures are built. Basic hydrologic data under natural and developed conditions are needed to appraise the effects of the structures on the yield and mode of occurrence of runoff. Hydrologic investigations of these small watersheds were begun by the Geological Survey in 1951 and are now being made in 12 study areas (fig. 1). These investigations are being made in cooperation with the Texas Water Development Board, the Soil Conservation Service, the San Antonio River Authority, the city of Dallas, and the Tarrant County Water Control and Improvement District No. 1. The 12 study areas were chosen to sample watershed having different rainfall, topography, geology, and soils. In five of the study areas, (North, Little Elm, Mukewater, little Pond-North Elm, and Pin Oak Creeks), streamflow and rainfall records were collected prior to construction of the floodwater-retarding structures, thus affording the opportunity for analyses of the conditions "before and after" development. A summary of the development of the floodwater-retarding structures in each study areas of September 30, 1970, is shown in table 1. Objectives of the Texas Small Watersheds Project The purpose of these investigations is to collect sufficient data to meeting the following

  5. Potential Implications of PCM Climate Change Scenarios for Sacramento-San Joaquin River Basin Hydrology and Water Resources

    Energy Technology Data Exchange (ETDEWEB)

    Van Rheenen, N.T.; Wood, A.W.; Palmer, R.N.; Lettenmaier, D.P. [Department of Civil and Environmental Engineering, 164 Wilcox Hall, P.O. Box 352700, University of Washington, Seattle, WA 98195-2700 (United States)

    2004-07-01

    The potential effects of climate change on the hydrology and water resources of the Sacramento-San Joaquin River Basin were evaluated using ensemble climate simulations generated by the U.S. Department of Energy and National Center for Atmospheric Research Parallel Climate Model (DOE/NCAR PCM). Five PCM scenarios were employed. The first three were ensemble runs from 1995-2099 with a 'business as usual' global emissions scenario, each with different atmospheric initializations. The fourth was a 'control climate' scenario with greenhouse gas emissions set at 1995 levels and run through 2099. The fifth was a historical climate simulation forced with evolving greenhouse gas concentrations from 1870-2000, from which a 50-year portion is taken for use in bias-correction of the other runs. From these global simulations, transient monthly temperature and precipitation sequences were statistically downscaled to produce continuous daily hydrologic model forcings, which drove a macro-scale hydrology model of the Sacramento-San Joaquin River Basins at a ?-degree spatial resolution, and produced daily streamflow sequences for each climate scenario. Each streamflow scenario was used in a water resources system model that simulated current and predicted future performance of the system. The progressive warming of the PCM scenarios (approximately 1.2C at midcentury, and 2.2C by the 2090s), coupled with reductions in winter and spring precipitation (from 10 to 25%), markedly reduced late spring snowpack (by as much as half on average by the end of the century). Progressive reductions in winter, spring, and summer streamflow were less severe in the northern part of the study domain than in the south, where a seasonality shift was apparent. Results from the water resources system model indicate that achieving and maintaining status quo (control scenario climate) system performance in the future would be nearly impossible, given the altered climate scenario

  6. Geological and hydrological factors affecting coalbed methane producibility in the San Juan, Greater Green River and Piceance Basins

    Energy Technology Data Exchange (ETDEWEB)

    Scott, A.R.; Kaise, W.R.; Tyler, R.; Hamilton, D.S.; Finley, R.J. [University of Texas at Austin, Austin, TX (United States). Bureau of Economic Geology

    1996-01-01

    In the traditional view, coalbed methane resources were generated in situ during coalification and stored primarily in micro-pores on the coal matrix`s large internal surface area by sorption. Net coal thickness and coal rank are assumed to be the dominant factors for determining areas of exceptionally high coalbed methane producibility. However, new insights based on research performed in the San Juan, Greater Green River, and Piceance Basins indicate that this traditional view is oversimplified because it fails to recognize the need for additional sources of gas beyond that generated initially during coalification to achieve unusually high gas contents. Migrated conventionally and hydrodynamically trapped gases, in-situ generated secondary biogenic gases, and solution gases are required to achieve high gas contents or fully gas-saturated coals. This paper summarises research on the geological and hydrological controls that are critical to coalbed methane producibility by contrasting the prolific San Juan and marginally-producing Greater Green River and Piceance Basins in the Rocky Mountain Foreland. These basins have different geologic and hydrologic attributes critical to coalbed methane producibility and are thought to be end-members of a coalbed methane producibility continuum. 7 refs., 7 figs.

  7. Application of Hydrologic Tools and Monitoring to Support Managed Aquifer Recharge Decision Making in the Upper San Pedro River, Arizona, USA

    Directory of Open Access Journals (Sweden)

    Laurel J. Lacher

    2014-11-01

    Full Text Available The San Pedro River originates in Sonora, Mexico, and flows north through Arizona, USA, to its confluence with the Gila River. The 92-km Upper San Pedro River is characterized by interrupted perennial flow, and serves as a vital wildlife corridor through this semiarid to arid region. Over the past century, groundwater pumping in this bi-national basin has depleted baseflows in the river. In 2007, the United States Geological Survey published the most recent groundwater model of the basin. This model served as the basis for predictive simulations, including maps of stream flow capture due to pumping and of stream flow restoration due to managed aquifer recharge. Simulation results show that ramping up near-stream recharge, as needed, to compensate for downward pumping-related stress on the water table, could sustain baseflows in the Upper San Pedro River at or above 2003 levels until the year 2100 with less than 4.7 million cubic meters per year (MCM/yr. Wet-dry mapping of the river over a period of 15 years developed a body of empirical evidence which, when combined with the simulation tools, provided powerful technical support to decision makers struggling to manage aquifer recharge to support baseflows in the river while also accommodating the economic needs of the basin.

  8. Gabriel Tarde (Sarlat 1843 - Paris 1904

    Directory of Open Access Journals (Sweden)

    Louise Salmon

    2005-01-01

    Full Text Available Fils d’un juge d’instruction près du tribunal civil de Sarlat, Gabriel Tarde se destina à son tour à cette profession. Bachelier ès sciences et ès lettres, il avait du renoncer à son projet de préparer Polytechnique suite à des troubles ophtalmologiques et avait poursuivit ses études à la Faculté de Droit de Toulouse, il les acheva à Paris en 1866 diplômé d’une licence. Secrétaire assistant du Juge de Sarlat en 1867, puis nommé Juge suppléant au Parquet de Sarlat en septembre 1869, il devint ...

  9. Heavy metals in water of the San Pedro River in Chihuahua, Mexico and its potential health risk

    Directory of Open Access Journals (Sweden)

    Melida Gutierrez

    2008-06-01

    Full Text Available The objective of this study was to determine the seasonal and downstream water quality variations of the San Pedro River in Chihuahua, Mexico. Water samples were collected monthly from October 2005 to August 2006 in triplicate, totaling 165 water samples. The five sampling locations were: below the Francisco I. Madero dam (LP; between Rosales and Delicias (RD; Meoqui (M; El Torreon (ET, and Julimes (LJ. The levels of As, Be, Ca, Cd, Co, Cu, Cr, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Ta, V and Zn were measured using an Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES Perkin Elmer 2100. In addition, temperature, pH, electrical conductivity and total and fecal coliformes were determined. The statistical analysis considered a factorial treatment design; where factor A was the location point and factor B was sampling date. In addition, a multivariate technique looking for principal components was performed. The results indicated that some samples exceeded Mexican standards for As, Be, Ca, Cd, Co, Cr, Fe, Mn, Ni, Pb, Sb, Se, Sr and Zn. The As level must be considered for a red flag to the communities along the Rio San Pedro because both the monthly average level (0.10 mg L-1 and location (0.10 mg L-1 exceeded the Mexican and International norms. The multivariate analysis showed a predominant aggregation at the LP location, meaning that there was a predominance of As, Sr, Fe and Li. At the rest of the locations the elements did not present a tendency for aggregation. Statistics applied to sampling month showed that December, January, March and April were aggregated in a negative quadrant of component 1 indicating a predominance of V, Ni, Be, Fe and As. Overall, the results confirmed that this stretch of the San Pedro River is contaminated with heavy metals and other contaminants that might affect human health as well as the health of the ecosystem.

  10. Heavy metals in water of the San Pedro River in Chihuahua, Mexico and its potential health risk.

    Science.gov (United States)

    Gutiérrez, Roberto L; Rubio-Arias, Hector; Quintana, Ray; Ortega, Juan Angel; Gutierrez, Melida

    2008-06-01

    The objective of this study was to determine the seasonal and downstream water quality variations of the San Pedro River in Chihuahua, Mexico. Water samples were collected monthly from October 2005 to August 2006 in triplicate, totaling 165 water samples. The five sampling locations were: below the Francisco I. Madero dam (LP); between Rosales and Delicias (RD); Meoqui (M); El Torreon (ET), and Julimes (LJ). The levels of As, Be, Ca, Cd, Co, Cu, Cr, Fe, Li, Mg, Mn, Mo, Ni, Pb, Sb, Se, Sr, Ti, Ta, V and Zn were measured using an Inductively Coupled Plasma- Optical Emission Spectrometry (ICP-OES) Perkin Elmer 2100. In addition, temperature, pH, electrical conductivity and total and fecal coliformes were determined. The statistical analysis considered a factorial treatment design; where factor A was the location point and factor B was sampling date. In addition, a multivariate technique looking for principal components was performed. The results indicated that some samples exceeded Mexican standards for As, Be, Ca, Cd, Co, Cr, Fe, Mn, Ni, Pb, Sb, Se, Sr and Zn. The As level must be considered for a red flag to the communities along the Rio San Pedro because both the monthly average level (0.10 mg L-1) and location (0.10 mg L-1) exceeded the Mexican and International norms. The multivariate analysis showed a predominant aggregation at the LP location, meaning that there was a predominance of As, Sr, Fe and Li. At the rest of the locations the elements did not present a tendency for aggregation. Statistics applied to sampling month showed that December, January, March and April were aggregated in a negative quadrant of component 1 indicating a predominance of V, Ni, Be, Fe and As. Overall, the results confirmed that this stretch of the San Pedro River is contaminated with heavy metals and other contaminants that might affect human health as well as the health of the ecosystem.

  11. Design and implementation of an emergency environmental responsesystem to protect migrating salmon in the lower San Joaquin River,California

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.; Jacobs, Karl C.

    2006-01-30

    In the past decade tens of millions of dollars have beenspent by water resource agencies in California to restore the nativesalmon fishery in the San Joaquin River and its major tributaries. Anexcavated deep water ship channel (DWSC), through which the river runs onits way to the Bay/Delta and Pacific Ocean, experiences episodes of lowdissolved oxygen which acts as a barrier to anadromous fish migration anda threat to the long-term survival of the salmon run. An emergencyresponse management system is under development to forecast theseepisodes of low dissolved oxygen and to deploy measures that will raisedissolved oxygen concentrations to prevent damage to the fisheryresource. The emergency response management system has been designed tointeract with a real-time water quality monitoring network and is servedby a comprehensive data management and forecasting model toolbox. TheBay/Delta and Tributaries (BDAT) Cooperative Data Management System is adistributed, web accessible database that contains terabytes ofinformation on all aspects of the ecology of the Bay/Delta and upperwatersheds. The complexity of the problem dictates data integration froma variety of monitoring programs. A unique data templating system hasbeen constructed to serve the needs of cooperating scientists who wish toshare their data and to simplify and streamline data uploading into themaster database. In this paper we demonstrate the utility of such asystem in providing decision support for management of the San JoaquinRiver fishery. We discuss how the system might be expanded to havefurther utility in coping with other emergencies and threats to watersupply system serving California's costal communities.

  12. Application of techniques to identify coal-mine and power-generation effects on surface-water quality, San Juan River basin, New Mexico and Colorado

    Science.gov (United States)

    Goetz, C.L.; Abeyta, Cynthia G.; Thomas, E.V.

    1987-01-01

    Numerous analytical techniques were applied to determine water quality changes in the San Juan River basin upstream of Shiprock , New Mexico. Eight techniques were used to analyze hydrologic data such as: precipitation, water quality, and streamflow. The eight methods used are: (1) Piper diagram, (2) time-series plot, (3) frequency distribution, (4) box-and-whisker plot, (5) seasonal Kendall test, (6) Wilcoxon rank-sum test, (7) SEASRS procedure, and (8) analysis of flow adjusted, specific conductance data and smoothing. Post-1963 changes in dissolved solids concentration, dissolved potassium concentration, specific conductance, suspended sediment concentration, or suspended sediment load in the San Juan River downstream from the surface coal mines were examined to determine if coal mining was having an effect on the quality of surface water. None of the analytical methods used to analyzed the data showed any increase in dissolved solids concentration, dissolved potassium concentration, or specific conductance in the river downstream from the mines; some of the analytical methods used showed a decrease in dissolved solids concentration and specific conductance. Chaco River, an ephemeral stream tributary to the San Juan River, undergoes changes in water quality due to effluent from a power generation facility. The discharge in the Chaco River contributes about 1.9% of the average annual discharge at the downstream station, San Juan River at Shiprock, NM. The changes in water quality detected at the Chaco River station were not detected at the downstream Shiprock station. It was not possible, with the available data, to identify any effects of the surface coal mines on water quality that were separable from those of urbanization, agriculture, and other cultural and natural changes. In order to determine the specific causes of changes in water quality, it would be necessary to collect additional data at strategically located stations. (Author 's abstract)

  13. Gabriel Garcia Marquez; The Significant Message of His Literary Discourse

    National Research Council Canada - National Science Library

    Mohammad B. Aghaei

    Gabriel Garcia Marquez’s literary discourse actually portrays the destructive domination of colonial and imperialistic powers and civil wars that led to a series of insecurities and poverty in the community...

  14. Evaluation of a floating fish guidance structure at a hydrodynamically complex river junction in the Sacramento–San Joaquin River Delta, California, USA

    Science.gov (United States)

    Romine, Jason G.; Perry, Russell W.; Pope, Adam C; Stumpner, Paul; Liedtke, Theresa L.; Kumagai, Kevin K; Reeves, Ryan L

    2016-01-01

    Survival of out-migrating juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Sacramento–San Joaquin River delta, California, USA, varies by migration route. Survival of salmonids that enter the interior and southern Delta can be as low as half that of salmonids that remain in the main-stem Sacramento River. Reducing entrainment into the higher-mortality routes, such as Georgiana Slough, should increase overall survival. In spring 2014, a floating fish-guidance structure (FFGS) designed to reduce entrainment into Georgiana Slough was deployed just upstream of the Georgiana Slough divergence. We used acoustic telemetry to evaluate the effect of the FFGS on Chinook entrainment to Georgiana Slough. At intermediate discharge (200–400 m3 s–1), entrainment into Georgiana Slough was five percentage points lower when the FFGS was in the on state (19.1% on; 23.9% off). At higher discharge (>400 m3 s–1), entrainment was higher when the FFGS was in the on state (19.3% on; 9.7% off), and at lower discharge (0–200 m3 s–1) entrainment was lower when the FFGS was in the on state (43.7% on; 47.3% off). We found that discharge, cross-stream fish position, time of day, and proportion of flow remaining in the Sacramento River contributed to the probability of being entrained to Georgiana Slough.

  15. Effects of reintroduced beaver (Castor canadensis) on riparian bird community structure along the upper San Pedro River, southeastern Arizona and northern Sonora, Mexico

    Science.gov (United States)

    Johnson, Glenn E.; van Riper, Charles

    2014-01-01

    Chapter 1.—We measured bird abundance and richness along the upper San Pedro River in 2005 and 2006, in order to document how beavers (Castor canadensis) may act as ecosystem engineers after their reintroduction to a desert riparian area in the Southwestern United States. In areas where beavers colonized, we found higher bird abundance and richness of bird groups, such as all breeding birds, insectivorous birds, and riparian specialists, and higher relative abundance of many individual species—including several avian species of conservation concern. Chapter 2.—We conducted bird surveys in riparian areas along the upper San Pedro River in southeastern Arizona (United States) and northern Sonora (Mexico) in order to describe factors influencing bird community dynamics and the distribution and abundance of species, particularly those of conservation concern. These surveys were also used to document the effects of the ecosystem-altering activities of a recently reintroduced beavers (Castor canadensis). Chapter 3.—We reviewed Southwestern Willow Flycatcher (Empidonax traillii extimus) nest records and investigated the potential for future breeding along the upper San Pedro River in southeastern Arizona, where in July 2005 we encountered the southernmost verifiable nest attempt for the species. Continued conservation and management of the area’s riparian vegetation and surface water has potential to contribute additional breeding sites for this endangered Willow Flycatcher subspecies. Given the nest record along the upper San Pedro River and the presence of high-density breeding sites to the north, the native cottonwood-willow forests of the upper San Pedro River could become increasingly important to E. t. extimus recovery, especially considering the anticipated effect of the tamarisk leaf beetle (Diorhabda carinulata) on riparian habitat north of the region.

  16. Assessment of goods and valuation of ecosystem services (AGAVES) San Pedro River Basin, United States and Mexico

    Science.gov (United States)

    Semmens, Darius; Kepner, William; Goodrich, David

    2010-01-01

    A consortium of federal, academic, and nongovernment organization (NGO) partners have established a collaborative research enterprise in the San Pedro River Basin to develop methods, standards, and tools to assess and value ecosystem goods and services. The central premise of ecosystem services research is that human condition is intrinsically linked to the environment. Human health and well-being (including economic prosperity) depend on important supporting, regulating, provisioning, and cultural services that we derive from our surrounding ecosystems. The AGAVES project is intended as a demonstration study for incorporating ecosystem services information into resource management policy and decisionmaking. Accordingly, a nested, multiscale project design has been adopted to address a range of stakeholder information requirements. This design will further facilitate an evaluation of how well methods developed in this project can be transferred to other areas.

  17. Documentation of a groundwater flow model (SJRRPGW) for the San Joaquin River Restoration Program study area, California

    Science.gov (United States)

    Traum, Jonathan A.; Phillips, Steven P.; Bennett, George Luther; Zamora, Celia; Metzger, Loren F.

    2014-01-01

    To better understand the potential effects of restoration flows on existing drainage problems, anticipated as a result of the San Joaquin River Restoration Program (SJRRP), the U.S. Geological Survey (USGS), in cooperation with the U.S. Bureau of Reclamation (Reclamation), developed a groundwater flow model (SJRRPGW) of the SJRRP study area that is within 5 miles of the San Joaquin River and adjacent bypass system from Friant Dam to the Merced River. The primary goal of the SJRRP is to reestablish the natural ecology of the river to a degree that restores salmon and other fish populations. Increased flows in the river, particularly during the spring salmon run, are a key component of the restoration effort. A potential consequence of these increased river flows is the exacerbation of existing irrigation drainage problems along a section of the river between Mendota and the confluence with the Merced River. Historically, this reach typically was underlain by a water table within 10 feet of the land surface, thus requiring careful irrigation management and (or) artificial drainage to maintain crop health. The SJRRPGW is designed to meet the short-term needs of the SJRRP; future versions of the model may incorporate potential enhancements, several of which are identified in this report. The SJRRPGW was constructed using the USGS groundwater flow model MODFLOW and was built on the framework of the USGS Central Valley Hydrologic Model (CVHM) within which the SJRRPGW model domain is embedded. The Farm Process (FMP2) was used to simulate the supply and demand components of irrigated agriculture. The Streamflow-Routing Package (SFR2) was used to simulate the streams and bypasses and their interaction with the aquifer system. The 1,300-square mile study area was subdivided into 0.25-mile by 0.25-mile cells. The sediment texture of the aquifer system, which was used to distribute hydraulic properties by model cell, was refined from that used in the CVHM to better represent

  18. Thirty years of collaboration with Gabriel Horn.

    Science.gov (United States)

    Bateson, Patrick

    2015-03-01

    All the collaborative work described in this review was on the process of behavioural imprinting occurring early in the life of domestic chicks. Finding a link between learning and a change in the brain was only a first step in establishing a representation of the imprinting object. A series of overlapping experiments were necessary to eliminate alternative explanations. Once completed, a structure, the intermediate and medial mesopallium (IMM), was found to be strongly linked to the formation of a neural representation of the object used for imprinting the birds. With the site identified, lesion experiments showed that it was necessary for imprinting but not associative learning. Also the two sides of the brain responded differently with the left IMM acting as a permanent store and the right side acting as a way station to other parts of the brain. The collaborative work led to many studies by Gabriel Horn with others on the molecular and cellular bases of imprinting, and also to neural net modelling and behavioural studies with me on the nature of category formation in intact animals. Copyright © 2014 Elsevier Ltd. All rights reserved.

  19. Gabriel Weinreich: The life and style

    Science.gov (United States)

    Hartmann, William M.

    2003-10-01

    Gabriel Weinreich (Gabi) was born in Vilna, Poland (now the capitol of Lithuania) one year prior to the founding of the Acoustical Society of America. When the second world war began in central Europe, Gabi's family came, in serial fashion, to New York City-Gabi himself arriving in 1941. Gabi studied physics at Columbia, and received a Ph.D. in 1953 for a thesis on atomic physics directed by the legendary I. I. Rabi. He subsequently worked on fundamental properties of semiconductors, first at Bell Labs, then, starting in 1960, at the University of Michigan. In 1977 he turned his attention to the acoustics of musical instruments, mainly the piano and bowed strings. He studied all phases of the physical elements: string excitation, string vibration, coupling, and radiation. Gabi brought his special style to acoustics-a combination of theory and experiment that imaginatively imports ideas and techniques from one area of physics into another, a willingness to attack traditional problems afresh by returning to first principles, and the ability to present ideas with incisive wit and charm so that information is not only informative but is also entertaining.

  20. Examining regional groundwater-surface water dynamics using an integrated hydrologic model of the San Joaquin River basin

    Science.gov (United States)

    Gilbert, James M.; Maxwell, Reed M.

    2017-02-01

    Widespread irrigated agriculture and a growing population depend on the complex hydrology of the San Joaquin River basin in California. The challenge of managing this complex hydrology hinges, in part, on understanding and quantifying how processes interact to support the groundwater and surface water systems. Here, we use the integrated hydrologic platform ParFlow-CLM to simulate hourly 1 km gridded hydrology over 1 year to study un-impacted groundwater-surface water dynamics in the basin. Comparisons of simulated results to observations show the model accurately captures important regional-scale partitioning of water among streamflow, evapotranspiration (ET), snow, and subsurface storage. Analysis of this simulated Central Valley groundwater system reveals the seasonal cycle of recharge and discharge as well as the role of the small but temporally constant portion of groundwater recharge that comes from the mountain block. Considering uncertainty in mountain block hydraulic conductivity, model results suggest this component accounts for 7-23 % of total Central Valley recharge. A simulated surface water budget guides a hydrograph decomposition that quantifies the temporally variable contribution of local runoff, valley rim inflows, storage, and groundwater to streamflow across the Central Valley. Power spectra of hydrograph components suggest interactions with groundwater across the valley act to increase longer-term correlation in San Joaquin River outflows. Finally, model results reveal hysteresis in the relationship between basin streamflow and groundwater contributions to flow. Using hourly model results, we interpret the hysteretic cycle to be a result of daily-scale fluctuations from precipitation and ET superimposed on seasonal and basin-scale recharge and discharge.

  1. The City Passing by the River. The San Francisco River Canalization and Construction of Avenida Jiménez de Quesada in Bogota at the Beginning of the 20th Century

    OpenAIRE

    Atuesta Ortiz, María

    2012-01-01

    The document refers to the San Francisco river canalization and subsequent construction of the Avenida Jiménez de Quesada. Understanding that the project was ascribed to the modernizing policy of the time, the investigation identifies the different stages in the canalization process, and shows its relations with the spatial structure of the city and the local conditions that developed on the river surroundings. The financing of the project through the “property increase duty” permits an illus...

  2. Distribution and abundance of Least Bell’s Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) on the Middle San Luis Rey River, San Diego, southern California—2016 data summary

    Science.gov (United States)

    Allen, Lisa D.; Howell, Scarlett L.; Kus, Barbara E.

    2017-09-29

    Executive SummaryWe surveyed for Least Bell’s Vireos (LBVI) (Vireo bellii pusillus) and Southwestern Willow Flycatchers (SWFL) (Empidonax traillii extimus) along the San Luis Rey River, between College Boulevard in Oceanside and Interstate 15 in Fallbrook, California (middle San Luis Rey River), in 2016. Surveys were done from March 30 to July 11 (LBVI) and from May 18 to July 30 (SWFL). We found 142 LBVI territories, at least 106 of which were occupied by pairs. Six additional transient LBVIs were detected. Of 20 banded LBVIs detected in the survey area, 9 had been given full color-band combinations prior to 2016, although we were unable to determine the exact color combination of 1 female LBVI. Seven other LBVIs with single (natal) federal bands were recaptured and banded in 2016. Four vireos with single dark blue federal bands indicating that they were banded as nestlings on the lower San Luis Rey River could not be recaptured for identification.Three SFWL territories were observed in the survey area in 2016. Two territories were occupied by pairs and one by a male of unknown breeding status. Both pairs attempted to nest at least once, and both pairs were successful, fledging three young each. Nesting began in early June and continued into July. Brown-Headed Cowbird (Molothrus ater) eggs were not observed in either nest. An additional 12 transient Willow Flycatchers of unknown subspecies were detected in 2016.Two of the five resident SWFLs were originally banded as nestlings on Marine Corps Base Camp Pendleton. One male and one female were banded as nestlings on Camp Pendleton in 2009 and 2011, respectively. One natal male of unknown breeding status, originally banded as a nestling on the middle San Luis Rey River in 2015, was recaptured and given a unique color combination in 2016. This male was later detected on Marine Corps Base Camp Pendleton.

  3. Ecosystem services valuation to support decisionmaking on public lands—A case study of the San Pedro River watershed, Arizona

    Science.gov (United States)

    Bagstad, Kenneth J.; Semmens, Darius; Winthrop, Rob; Jaworksi, Delilah; Larson, Joel

    2012-01-01

    This report details the findings of the Bureau of Land Management–U.S. Geological Survey Ecosystem Services Valuation Pilot Study. This project evaluated alternative methods and tools that quantify and value ecosystem services, and it assessed the tools’ readiness for use in the Bureau of Land Management decisionmaking process. We tested these tools on the San Pedro River watershed in northern Sonora, Mexico, and southeast Arizona. The study area includes the San Pedro Riparian National Conservation Area (managed by the Bureau of Land Management), which has been a focal point for conservation activities and scientific research in recent decades. We applied past site-specific primary valuation studies, value transfer, the Wildlife Habitat Benefits Estimation Toolkit, and the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) and Artificial Intelligence for Ecosystem Services (ARIES) models to value locally important ecosystem services for the San Pedro River watershed—water, carbon, biodiversity, and cultural values. We tested these approaches on a series of scenarios to evaluate ecosystem service changes and the ability of the tools to accommodate scenarios. A suite of additional tools were either at too early a stage of development to run, were proprietary, or were place-specific tools inappropriate for application to the San Pedro River watershed. We described the strengths and weaknesses of these additional ecosystem service tools against a series of evaluative criteria related to their usefulness for Bureau of Land Management decisionmaking. Using these tools, we quantified gains or losses of ecosystem services under three categories of scenarios: urban growth, mesquite management, and water augmentation. These results quantify tradeoffs and could be useful for decisionmaking within Bureau of Land Management district or field offices. Results are accompanied by a relatively high level of uncertainty associated with model outputs, valuation

  4. Innovation in monitoring: The U.S. Geological Survey Sacramento–San Joaquin River Delta, California, flow-station network

    Science.gov (United States)

    Burau, Jon; Ruhl, Cathy; Work, Paul

    2016-01-29

    The U.S. Geological Survey (USGS) installed the first gage to measure the flow of water into California’s Sacramento–San Joaquin River Delta from the Sacramento River in the late 1800s. Today, a network of 35 hydro-acoustic meters measure flow throughout the delta. This region is a critical part of California’s freshwater supply and conveyance system. With the data provided by this flow-station network—sampled every 15 minutes and updated to the web every hour—state and federal water managers make daily decisions about how much freshwater can be pumped for human use, at which locations, and when. Fish and wildlife scientists, working with water managers, also use this information to protect fish species affected by pumping and loss of habitat. The data are also used to help determine the success or failure of efforts to restore ecosystem processes in what has been called the “most managed and highly altered” watershed in the country.

  5. Assessing Hydrologic Impacts of Future Land Cover Change Scenarios in the South Platte River Basin (CO, WY, & NE) and the San Pedro River Basin (U.S./Mexico).

    Science.gov (United States)

    Barlow, J. E.; Burns, I. S.; Guertin, D. P.; Kepner, W. G.; Goodrich, D. C.

    2016-12-01

    Long-term land-use and land cover change and their associated impacts pose critical challenges to sustaining vital hydrological ecosystem services for future generations. In this study, a methodology to characterize hydrologic impacts from future urban growth through time that was developed and applied on the San Pedro River Basin was expanded and utilized on the South Platte River Basin as well. Future urban growth is represented by housing density maps generated in decadal intervals from 2010 to 2100, produced by the U.S. Environmental Protection Agency (EPA) Integrated Climate and Land-Use Scenarios (ICLUS) project. ICLUS developed future housing density maps by adapting the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) social, economic, and demographic storylines to the conterminous United States. To characterize hydrologic impacts from future growth, the housing density maps were reclassified to National Land Cover Database (NLCD) 2006 land cover classes and used to parameterize the Soil and Water Assessment Tool (SWAT) using the Automated Geospatial Watershed Assessment (AGWA) tool. The objectives of this project were to 1) develop and implement a methodology for adapting the ICLUS data for use in AGWA as an approach to evaluate impacts of development on water-quantity and -quality, 2) present, evaluate, and compare results from scenarios for watersheds in two different geographic and climatic regions, 3) determine watershed specific implications of this type of future land cover change analysis.

  6. Gabriel Richet: the Man and the Scientist.

    Science.gov (United States)

    Ardaillou, Raymond; Ronco, Pierre

    2016-02-01

    Gabriel Richet who died in Paris in October 2014 was the fourth of a brilliant dynasty of professors of medicine including a Nobel prize, his grandfather, Charles Richet. He behaved courageously during the Second World War and participated in the Campaign of France in 1940 and in the combats in the Vosges Mountains in 1945. His family participated in the resistance during the German occupation of France and three of his parents including his father, one of his brothers and one of his cousins were deported in Germany. At the end of the war, he was with Jean Hamburger the founder of French nephrology at Necker Hospital in Paris. He realized the first hemodialyses in France and was involved in the first allogenic transplantation that was not immediately rejected. From 1961 to 1985, he was the head of a school of nephrology at Tenon Hospital and attracted in his department many young collaborators and scientists. He was the first to describe the role of specialized cells of the collecting duct in the control of acid base equilibrium. He was the subject of a national and international recognition. Founding member of the International Society of Nephrology in 1960, he was elected his President from 1981-1984. His fame could be measured by the number of fellows and visiting facultiesfrom countries all over the world. When he retired in 1985, he left an important legacy involving several departments of nephrology directed by his ancient collaborators. After his retirement, he was an active member of the French Academy of Medicine and devoted much of his time to the history of medicine and, particularly, of nephrology. The main qualities of the man were his constant research of new ideas, his eagerness to work and his open mind to understand others.

  7. Past leaded gasoline emissions as a nonpoint source tracer in riparian systems: A study of river inputs to San Francisco Bay

    Science.gov (United States)

    Dunlap, C.E.; Bouse, R.; Flegal, A.R.

    2000-01-01

    Variations in the isotopic composition of lead in 1995-1998 river waters flowing into San Francisco Bay trace the washout of lead deposited in the drainage basin from leaded gasoline combustion. At the confluence of the Sacramento and San Joaquin rivers where they enter the Bay, the isotopic compositions of lead in the waters define a linear trend away from the measured historical compositions of leaded gas in California. The river waters are shifted away from leaded gasoline values and toward an isotopic composition similar to Sierra Nevadan inputs which became the predominant source of sedimentation in San Francisco Bay following the onset of hydraulic gold mining in 1853. Using lead isotopic compositions of hydraulic mine sediments and average leaded gasoline as mixing end members, we calculate that more than 50% of the lead in the present river water originated from leaded gasoline combustion. The strong adsorption of lead (log K(d) > 7.4) to particulates appears to limit the flushing of gasoline lead from the drainage basin, and the removal of that lead from the system may have reached an asymptotic limit. Consequently, gasoline lead isotopes should prove to be a useful nonpoint source tracer of the environmental distribution of particle- reactive anthropogenic metals in freshwater systems.

  8. Development of a shared vision for groundwater management to protect and sustain baseflows of the Upper San Pedro River, Arizona, USA

    Science.gov (United States)

    Richter, Holly E.; Gungle, Bruce; Lacher, Laurel J.; Turner, Dale S.; Bushman, Brooke M.

    2014-01-01

    Groundwater pumping along portions of the binational San Pedro River has depleted aquifer storage that supports baseflow in the San Pedro River. A consortium of 23 agencies, business interests, and non-governmental organizations pooled their collective resources to develop the scientific understanding and technical tools required to optimize the management of this complex, interconnected groundwater-surface water system. A paradigm shift occurred as stakeholders first collaboratively developed, and then later applied, several key hydrologic simulation and monitoring tools. Water resources planning and management transitioned from a traditional water budget-based approach to a more strategic and spatially-explicit optimization process. After groundwater modeling results suggested that strategic near-stream recharge could reasonably sustain baseflows at or above 2003 levels until the year 2100, even in the presence of continued groundwater development, a group of collaborators worked for four years to acquire 2250 hectares of land in key locations along 34 kilometers of the river specifically for this purpose. These actions reflect an evolved common vision that considers the multiple water demands of both humans and the riparian ecosystem associated with the San Pedro River.

  9. Dissolved Oxygen (DO) and Nutrients Analysis in the Río Piedras River, San Juan, Puerto Rico

    Science.gov (United States)

    Santiago, I.; Infante, G.

    2016-02-01

    The Río Piedras is the only River in the metropolitan area of Puerto Rico. This River was the first water supplier and is part of the ancient aqueduct, the first treatment plant of the San Juan urban area. Because of its cultural and historic importance the ancient aqueduct was cataloged as a National Treasure by the National Trust of History Preservation in 2014. Actually, is protected by Para La Naturaleza (before named in Spanish as the "Fideicomiso de Conservación de Puerto Rico"). The research objectives were to evaluate and measure the dissolved oxygen (DO), total phosphorus (TP) and the heavy metals (HM) concentrations of the River. Also, to examine if the DO, TP and HM (Cu, Fe, Pb, Mn, Al, and Zn) concentrations were in compliance with the Environmental Protection Agency (EPA) standards. Using DO bottles, water samples were collected on three points during six dates. DO concentrations were measured with the YSI Pro GBOD. TP concentrations were analyzed using the UV-Vis spectrophotometer "HACH" (DR 5000). Utilizing the ICP (Inductively Coupled Plasma) spectrophotometer emission technique and the EPA protocols HM concentrations were measured. Preliminary results show that the DO measurements were from 5.00 mg/L to 7.00 mg/L (p-value=0.282). HM concentrations findings were 0.456 (correlation coefficient=0.9997), 1.205 (correlation coefficient=0.9972) and 3.287 (correlation coefficient=0.9950) for Zn, Cu and Cr, respectively. We expected highest HM concentrations in our finals results due to the drought weather during each samples collection. Data analysis for DO, TP and HM concentrations will be presented. Finally, the results obtained and the project details will be explained during the poster presentation.

  10. Projecting Cumulative Benefits of Multiple River Restoration Projects: An Example from the Sacramento-San Joaquin River System in California

    Science.gov (United States)

    Kondolf, G. Mathias; Angermeier, Paul L.; Cummins, Kenneth; Dunne, Thomas; Healey, Michael; Kimmerer, Wim; Moyle, Peter B.; Murphy, Dennis; Patten, Duncan; Railsback, Steve; Reed, Denise J.; Spies, Robert; Twiss, Robert

    2008-12-01

    Despite increasingly large investments, the potential ecological effects of river restoration programs are still small compared to the degree of human alterations to physical and ecological function. Thus, it is rarely possible to “restore” pre-disturbance conditions; rather restoration programs (even large, well-funded ones) will nearly always involve multiple small projects, each of which can make some modest change to selected ecosystem processes and habitats. At present, such projects are typically selected based on their attributes as individual projects (e.g., consistency with programmatic goals of the funders, scientific soundness, and acceptance by local communities), and ease of implementation. Projects are rarely prioritized (at least explicitly) based on how they will cumulatively affect ecosystem function over coming decades. Such projections require an understanding of the form of the restoration response curve, or at least that we assume some plausible relations and estimate cumulative effects based thereon. Drawing on our experience with the CALFED Bay-Delta Ecosystem Restoration Program in California, we consider potential cumulative system-wide benefits of a restoration activity extensively implemented in the region: isolating/filling abandoned floodplain gravel pits captured by rivers to reduce predation of outmigrating juvenile salmon by exotic warmwater species inhabiting the pits. We present a simple spreadsheet model to show how different assumptions about gravel pit bathymetry and predator behavior would affect the cumulative benefits of multiple pit-filling and isolation projects, and how these insights could help managers prioritize which pits to fill.

  11. Agricultural Chemical Concentrations and Loads in Rivers Draining the Central Valley, California, to the San Francisco Bay-Delta Estuary: Before and During an Extended Drought

    Science.gov (United States)

    Domagalski, J. L.

    2016-12-01

    Drought or near drought conditions have occurred in California since 2012. Although some parts of the State received near normal precipitation in water year 2016, other locations were still below average. Extended drought can impact aquatic organisms in a variety of ways because of decreased flows and elevated water temperature. However, lower precipitation and availability of irrigation water may limit subsequent runoff, resulting in reduced concentrations and loads of certain environmental toxicants, such as pesticides and ammonia, thereby limiting their toxic effects. In this study, funded by the U.S. Geological Survey National Water Quality Program, the occurrence of 227 pesticides and degradation products, and nutrients was assessed before and during this current drought in the two largest rivers draining to the San Francisco Bay: the Sacramento and San Joaquin Rivers. The watersheds of both rivers include substantial agricultural and urban land use. Herbicides, insecticides, fungicides, and ammonia were detected throughout the study (2010 to 2016) and models of daily concentration using the seasonal wave model (rloadest) were formulated to assess the amount of time that concentrations may have exceeded benchmark levels known to be toxic to aquatic organisms. Frequently detected pesticides included the fungicide azoxystrobin, herbicides or their degradation products such as diuron, glyphosate, and metolachlor, and insecticides such as imidacloprid. Compounds that are transported primarily by surface runoff generally showed decreasing concentrations as the drought progressed, especially in the San Joaquin River. Compounds mainly transported by groundwater, as indicated by seasonal concentration profiles, had more stable concentrations in the rivers. Mass loads to the Bay all decreased, as expected, because of the lower river discharge. When compared to aquatic-life benchmarks, modeled concentrations indicated that individual compounds were not contributing to

  12. Uranium in the Surrounding of San Marcos-Sacramento River Environment (Chihuahua, Mexico)

    Science.gov (United States)

    Rentería-Villalobos, Marusia; Cortés, Manuel Reyes; Mantero, Juan; Manjón, Guillermo; García-Tenorio, Rafael; Herrera, Eduardo; Montero-Cabrera, Maria Elena

    2012-01-01

    The main interest of this study is to assess whether uranium deposits located in the San Marcos outcrops (NW of Chihuahua City, Mexico) could be considered as a source of U-isotopes in its surrounding environment. Uranium activity concentrations were determined in biota, ground, and surface water by either alpha or liquid scintillation spectrometries. Major ions were analyzed by ICP-OES in surface water and its suspended matter. For determining uranium activity in biota, samples were divided in parts. The results have shown a possible lixiviation and infiltration of uranium from geological substrate into the ground and surface water, and consequently, a transfer to biota. Calculated annual effective doses by ingestion suggest that U-isotopes in biota could not negligibly contribute to the neighboring population dose. By all these considerations, it is concluded that in this zone there is natural enhancement of uranium in all environmental samples analyzed in the present work. PMID:22536148

  13. Uranium in the Surrounding of San Marcos-Sacramento River Environment (Chihuahua, Mexico

    Directory of Open Access Journals (Sweden)

    Marusia Rentería-Villalobos

    2012-01-01

    Full Text Available The main interest of this study is to assess whether uranium deposits located in the San Marcos outcrops (NW of Chihuahua City, Mexico could be considered as a source of U-isotopes in its surrounding environment. Uranium activity concentrations were determined in biota, ground, and surface water by either alpha or liquid scintillation spectrometries. Major ions were analyzed by ICP-OES in surface water and its suspended matter. For determining uranium activity in biota, samples were divided in parts. The results have shown a possible lixiviation and infiltration of uranium from geological substrate into the ground and surface water, and consequently, a transfer to biota. Calculated annual effective doses by ingestion suggest that U-isotopes in biota could not negligibly contribute to the neighboring population dose. By all these considerations, it is concluded that in this zone there is natural enhancement of uranium in all environmental samples analyzed in the present work.

  14. Uranium in the surrounding of San Marcos-Sacramento River environment (Chihuahua, Mexico).

    Science.gov (United States)

    Rentería-Villalobos, Marusia; Cortés, Manuel Reyes; Mantero, Juan; Manjón, Guillermo; García-Tenorio, Rafael; Herrera, Eduardo; Montero-Cabrera, Maria Elena

    2012-01-01

    The main interest of this study is to assess whether uranium deposits located in the San Marcos outcrops (NW of Chihuahua City, Mexico) could be considered as a source of U-isotopes in its surrounding environment. Uranium activity concentrations were determined in biota, ground, and surface water by either alpha or liquid scintillation spectrometries. Major ions were analyzed by ICP-OES in surface water and its suspended matter. For determining uranium activity in biota, samples were divided in parts. The results have shown a possible lixiviation and infiltration of uranium from geological substrate into the ground and surface water, and consequently, a transfer to biota. Calculated annual effective doses by ingestion suggest that U-isotopes in biota could not negligibly contribute to the neighboring population dose. By all these considerations, it is concluded that in this zone there is natural enhancement of uranium in all environmental samples analyzed in the present work.

  15. Nitrification and Microbial Activity in Response to Wastewater Effluent in the Sacramento/San Joaquin River Delta

    Science.gov (United States)

    Challenor, T.; Damashek, J.; Tolar, B. B.; Francis, C.; Casciotti, K. L.

    2016-12-01

    Nitrification, the oxidation of ammonium (NH4+) to nitrate (NO3-) by a coterie of ammonia-oxidizing bacteria (AOB) and archaea (AOA), is a crucial step in removing nitrogen from marine ecosystems. The Sacramento/San Joaquin River delta receives ammonium-laden effluent from the Sacramento Regional Wastewater Treatment Plant (SRWTP) and nitrate from agriculture runoff. The system provides freshwater to irrigate the Central Valley and drinking water for many millions of people. In recent years, however, this environment has experienced ecological turmoil - the Pelagic Organism Decline (POD) refers to a die-out of fish and other species over the course of three decades. One explanation implicated excessive ammonium input, claiming it limited primary productivity and hurt pelagic fish down the line. A new hypothesis, however, posits that the ecosystem may soon face the opposite problem: over-productivity and hypoxia due to increased light availability and reduced turbidity. Studying the rate of nitrification and the makeup of the microbial community will further elucidate how nutrient loading has impacted this ecosystem. Nitrification rates were calculated from water samples collected in the Sacramento River starting at the SRWTP and moving downstream. Samples were spiked with 15N-labeled ammonium and incubated for 24 hours in triplicate. Four time-points were extracted and the "denitrifier" method was used to measure the isotopic ratio of N over time. DNA and RNA were extracted from filtered water at each site and PCR and qPCR assays were used targeting the amoA gene, which encodes the α-subunit of ammonia monooxygenase, responsible for oxidizing ammonium to nitrite (NO2-). Consistent with previous nitrification data, rates were highest in the lower river downstream of the SRWTP, where nitrate concentrations were correspondingly elevated. AOB predominated in the ammonia oxidizing community, and some clades were unique to this ecosystem. Nitrifying microbes provide an

  16. Water Hyacinth Identification Using CART Modeling With Hyperspectral Data in the Sacramento-San Joaquin River Delta of California

    Science.gov (United States)

    Khanna, S.; Hestir, E. L.; Santos, M. J.; Greenberg, J. A.; Ustin, S. L.

    2007-12-01

    Water hyacinth (Eichhornia crassipes) is an invasive aquatic weed that is causing severe economic and ecological impacts in the Sacramento-San Joaquin River Delta (California, USA). Monitoring its distribution using remote sensing is the crucial first step in modeling its predicted spread and implementing control and eradication efforts. However, accurately mapping this species is confounded by its several phenological forms, namely a healthy vegetative canopy, flowering canopy with dense conspicuous terminal flowers above the foliage, and floating dead and senescent forms. The full range of these phenologies may be simultaneously present at any time, given the heterogeneity of environmental and ecological conditions in the Delta. There is greater spectral variation within water hyacinth than between any of the co-occurring species (pennywort and water primrose), so classification approaches must take these different phenological stages into consideration. We present an approach to differentiating water hyacinth from co-occurring species based on knowledge of relevant variation in leaf chlorophyll, floral pigments, foliage water content, and variation in leaf structure using a classification and regression tree (CART) applied to airborne hyperspectral remote sensing imagery.

  17. Assessing hydrologic impacts of future Land Change scenarios in the San Pedro River (U.S./Mexico)

    Science.gov (United States)

    Kepner, W. G.; Burns, S.; Sidman, G.; Levick, L.; Goodrich, D. C.; Guertin, P.; Yee, W.; Scianni, M.

    2012-12-01

    An approach was developed to characterize the hydrologic impacts of urban expansion through time for the San Pedro River, a watershed of immense international importance that straddles the U.S./Mexico border. Future urban growth is a key driving force altering local and regional hydrology and is represented by decadal changes in housing density maps from 2010 to 2100 derived from the Integrated Climate and Land-Use Scenarios (ICLUS) database. ICLUS developed future housing density maps by adapting the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) social, economic, and demographic storylines to the conterminous United States. To characterize the hydrologic impacts of future growth, the housing density maps were reclassified to National Land Cover Database 2006 land cover classes and used to parameterize the Soil and Water Assessment Tool (SWAT) using the Automated Geospatial Watershed Assessment (AGWA) tool. The presentation will report 1) the methodology for adapting the ICLUS data for use in AGWA as an approach to evaluate basin-wide impacts of development on water-quantity and -quality, 2) initial results of the application of the methodology, and 3) discuss implications of the analysis.

  18. The effect of submerged aquatic vegetation expansion on a declining turbidity trend in the Sacramento-San Joaquin River Delta

    Science.gov (United States)

    Hestir, E.L.; Schoellhamer, David H.; Jonathan Greenberg,; Morgan, Tara; Ustin, S.L.

    2016-01-01

    Submerged aquatic vegetation (SAV) has well-documented effects on water clarity. SAV beds can slow water movement and reduce bed shear stress, promoting sedimentation and reducing suspension. However, estuaries have multiple controls on turbidity that make it difficult to determine the effect of SAV on water clarity. In this study, we investigated the effect of primarily invasive SAV expansion on a concomitant decline in turbidity in the Sacramento-San Joaquin River Delta. The objective of this study was to separate the effects of decreasing sediment supply from the watershed from increasing SAV cover to determine the effect of SAV on the declining turbidity trend. SAV cover was determined by airborne hyperspectral remote sensing and turbidity data from long-term monitoring records. The turbidity trends were corrected for the declining sediment supply using suspended-sediment concentration data from a station immediately upstream of the Delta. We found a significant negative trend in turbidity from 1975 to 2008, and when we removed the sediment supply signal from the trend it was still significant and negative, indicating that a factor other than sediment supply was responsible for part of the turbidity decline. Turbidity monitoring stations with high rates of SAV expansion had steeper and more significant turbidity trends than those with low SAV cover. Our findings suggest that SAV is an important (but not sole) factor in the turbidity decline, and we estimate that 21–70 % of the total declining turbidity trend is due to SAV expansion.

  19. A new species of Hemibrycon (Characiformes, Characidae) from the upper San Juan River drainage, Pacific versant, Colombia

    Science.gov (United States)

    Román-Valencia, César; Ruiz-C, Raquel I.; Taphorn, Donald C.; García-Alzate, Carlos A.

    2014-01-01

    Abstract Hemibrycon sanjuanensis, new species, is described from the upper San Juan River drainage, Pacific versant, Colombia. It is distinguished from Hemibrycon boquiae, Hemibrycon brevispini, Hemibrycon cairoense, Hemibrycon colombianus, Hemibrycon mikrostiktos, Hemibrycon metae, Hemibrycon palomae, Hemibrycon rafaelense and Hemibrycon tridens by the presence of a circular or oblong humeral spot that is located two scales posterior to the opercle (vs. 3–4 scales in Hemibrycon palomae, Hemibrycon rafaelense, Hemibrycon brevispini and Hemibrycon cairoense, and 0–1 scales, in Hemibrycon metae and Hemibrycon boquiae). It further differs from Hemibrycon colombianus in having a round or oblong humeral spot (vs. rectangular). It differs from Hemibrycon beni, Hemibrycon dariensis, Hemibrycon divisorensis, Hemibrycon helleri, Hemibrycon huambonicus, Hemibrycon inambari, Hemibrycon jabonero, Hemibrycon jelskii, Hemibrycon mikrostiktos, Hemibrycon polyodon, Hemibrycon quindos, Hemibrycon raqueliae, Hemibrycon santamartae, Hemibrycon surinamensis, Hemibrycon taeniurus, Hemibrycon tridens, and Hemibrycon yacopiae in having melanophores on the posterior margins of the scales along the sides of body (vs. lacking melanophores on margins of scales along entire length of the sides of body). The new species differs from all congeners mentioned above in having, among other features, six teeth in the outer premaxillary row arranged in a straight line (vs. five or fewer teeth not arranged in straight line except Hemibrycon cairoense with two to six teeth in the outer premaxillary row). PMID:25493068

  20. Coalbed gas systems, resources, and production and a review of contrasting cases from the San Juan and Powder River basins

    Energy Technology Data Exchange (ETDEWEB)

    Ayers, W.B. [Texas A& M University, College Station, TX (United States)

    2002-07-01

    Coalbed gas is stored primarily within micropores of the coal matrix in an adsorbed state and secondarily in micropores and fractures as free gas or solution gas in water. The key parameters that control gas resources and producibility are thermal maturity, maceral composition, gas content, coal thickness, fracture density, in-situ stress, permeability, burial history, and hydrologic setting. These parameters vary greatly in the producing fields of the United States and the world. In 2000, the San Juan basin accounted for more than 80% of the United States coalbed gas production. This basin contains a giant coalbed gas play, the Fruitland fairway, which has produced more than 7 tcf (0.2 Tm{sup 3}) of gas. The Fruitland coalbed gas system M and its key elements contrast with the Fort Union coalbed gas play in the Powder River basin. The Fort Union coalbed play is one of the fastest developing gas plays in the United States. Its production escalated from 14 bcf (0.4 Gm{sup 3}) in 1997 to 147.3 bcf (4.1 Gm{sup 3}) in 2000, when it accounted for 10.7% of the United States coalbed gas production. By 2001, annual production was 244.7 bcf (6.9 Gm{sup 3}). Differences between the Fruitland and Fort Union petroleum systems make them ideal for elucidating the key elements of contrasting coalbed gas petroleum systems.

  1. Comparing approaches to spatially explicit ecosystem service modeling: a case study from the San Pedro River, Arizona

    Science.gov (United States)

    Bagstad, Kenneth J.; Semmens, Darius J.; Winthrop, Robert

    2013-01-01

    Although the number of ecosystem service modeling tools has grown in recent years, quantitative comparative studies of these tools have been lacking. In this study, we applied two leading open-source, spatially explicit ecosystem services modeling tools – Artificial Intelligence for Ecosystem Services (ARIES) and Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) – to the San Pedro River watershed in southeast Arizona, USA, and northern Sonora, Mexico. We modeled locally important services that both modeling systems could address – carbon, water, and scenic viewsheds. We then applied managerially relevant scenarios for urban growth and mesquite management to quantify ecosystem service changes. InVEST and ARIES use different modeling approaches and ecosystem services metrics; for carbon, metrics were more similar and results were more easily comparable than for viewsheds or water. However, findings demonstrate similar gains and losses of ecosystem services and conclusions when comparing effects across our scenarios. Results were more closely aligned for landscape-scale urban-growth scenarios and more divergent for a site-scale mesquite-management scenario. Follow-up studies, including testing in different geographic contexts, can improve our understanding of the strengths and weaknesses of these and other ecosystem services modeling tools as they move closer to readiness for supporting day-to-day resource management.

  2. Collaborative Modeling in New Mexico's Upper Gila and San Francisco River Basin

    Science.gov (United States)

    Tidwell, V. C.; Sun, A. C.; Klise, G. T.; Peplinski, W. J.; Brainard, J. R.; Aragon, C. A.

    2007-12-01

    The 2005 Arizona Water Settlements Act (AWSA) has given southwestern New Mexico a unique opportunity to appropriate water from the Upper Gila River basin. This appropriation calls for Arizona irrigators to "trade" their existing use of Gila River water for Central Arizona Project water to realize New Mexico's legal right to develop water originating in its portion of the Upper Gila River watershed. The complexity of the AWSA and various stakeholders interested in the implications of the settlement has led to the development of a collaborative modeling team. As a team member, Sandia National Laboratories is tasked with building an integrated basin scale system-dynamics model that can implement the constraints outlined in the AWSA by projecting water supply and demand scenarios into the future. By building this model, stakeholders will gain insight into the hydrologic complexities inherent in a river basin, and it will allow them to evaluate whether alternate water use scenarios will be allowed under the constraints outlined by the AWSA. The model replicates historic surface and ground water conditions in the basin using available data for supply, including gauges that measure stream flow, ditch flow, and precipitation. Demands are measured through annual hydrographic survey records for agricultural production, industrial water use by mining, municipal and domestic use in both urban and rural communities, and riparian evapotranspiration. Within the system-dynamics framework, volumetric flow of water is the dynamic state variable calculated from one river reach to the next. Stream gauge, climate and consumptive use data are used to calibrate the historic baseline flows. There is a great deal of uncertainty that must be addressed when attempting to model a large basin. Integrating a watershed model to add the contribution of ungauged tributaries is part of this effort. Another challenge is the presence of federally listed endangered avian and aquatic species whose flow

  3. Ecosystem services valuation to support decisionmaking on public lands—A case study of the San Pedro River watershed, Arizona

    Science.gov (United States)

    Bagstad, Kenneth J.; Semmens, Darius; Winthrop, Rob; Jaworksi, Delilah; Larson, Joel

    2012-01-01

    This report details the findings of the Bureau of Land Management–U.S. Geological Survey Ecosystem Services Valuation Pilot Study. This project evaluated alternative methods and tools that quantify and value ecosystem services, and it assessed the tools’ readiness for use in the Bureau of Land Management decisionmaking process. We tested these tools on the San Pedro River watershed in northern Sonora, Mexico, and southeast Arizona. The study area includes the San Pedro Riparian National Conservation Area (managed by the Bureau of Land Management), which has been a focal point for conservation activities and scientific research in recent decades. We applied past site-specific primary valuation studies, value transfer, the Wildlife Habitat Benefits Estimation Toolkit, and the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) and Artificial Intelligence for Ecosystem Services (ARIES) models to value locally important ecosystem services for the San Pedro River watershed—water, carbon, biodiversity, and cultural values. We tested these approaches on a series of scenarios to evaluate ecosystem service changes and the ability of the tools to accommodate scenarios. A suite of additional tools were either at too early a stage of development to run, were proprietary, or were place-specific tools inappropriate for application to the San Pedro River watershed. We described the strengths and weaknesses of these additional ecosystem service tools against a series of evaluative criteria related to their usefulness for Bureau of Land Management decisionmaking. Using these tools, we quantified gains or losses of ecosystem services under three categories of scenarios: urban growth, mesquite management, and water augmentation. These results quantify tradeoffs and could be useful for decisionmaking within Bureau of Land Management district or field offices. Results are accompanied by a relatively high level of uncertainty associated with model outputs, valuation

  4. A review of the Texas, USA San Jacinto Superfund site and the deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans in the San Jacinto River and Houston Ship Channel.

    Science.gov (United States)

    Iyer, Rupa; Aggarwal, Juhi; Iken, Brian

    2016-12-01

    The San Jacinto River (SJR) waste pits that lie just under the 1-10 overpass in eastern Harris County east of Houston, Texas, USA, were created in the 1960s as dumping grounds for paper mill waste. The deposition of this waste led to accumulation of highly toxic polychlorinated dibenzo-p-dioxins and dibenzofurans (PCCDDs/PCDFs) over the course of several decades. After abandonment, the waste material eventually became submerged under the waters of the SJR, resulting in widespread environmental contamination that currently constitutes a significant health concern for eastern Harris County communities. The original waste pits were rediscovered in 2005, and the San Jacinto waste site is now a designated EPA superfund site. The objective of this review then is to discuss the history and current state of containment around the San Jacinto waste pits and analyze spatial and temporal trends in the PCDD/PCDF deposition through the SJR system from the data available. We will discuss the current exposure and health risks represented by the Superfund site and the SJR system itself, as well as the discovery of liver, kidney, brain (glioma), and retinoblastoma cancer clusters in eastern Harris County across multiple census tracts that border the Superfund site. We will also cover the two primary management options, containment versus removal of the waste from the Superfund and provide recommendations for increased monitoring of existing concentrations of polychlorinated waste in the SJR and its nearby associated communities.

  5. Aplicación de tres índices bióticos en el río San Juan, Andes, Colombia (Application of three biotic indexes in the river San Juan, Andes, Colombia

    Directory of Open Access Journals (Sweden)

    Mailedt Paola Murillo Torrentes

    2016-09-01

    Full Text Available Durante los meses de febrero, mayo, agosto y octubre del año 2014, se evaluó la calidad del agua del río San Juan. Para tal fin se establecieron seis puntos de muestreo donde se recolectaron muestras de agua y macroinvertebrados acuáticos para los análisis fisicoquímicos e hidrobiológicos. Se aplicaron y modificaron los índices bióticos EPT (efemerópteros, plecópteros, tricópteros, BMWP/Col (Biological Monitoring Working Party y ASPT (Average Score per Taxon basados en las comunidades de macroinvertebrados acuáticos capturados. Los resultados de las variables fisicoquímicas y los índices bióticos indican que las estaciones E1 y E2 son las que presentan menor grado de contaminación, en las demás estaciones disminuye considerablemente la calidad del agua debido a las actividades económicas desarrolladas en el sector y a su cercanías con el casco urbano del municipio de Andes. De los tres índices analizados, el ASPT modificado y adaptado al río San Juan es el que mejor se relaciona con las condiciones ambientales del río en tanto las características de los macroinvertebrados acuáticos recolectados y analizados en el trayecto objeto de estudio. (Abstract. During the months of February, May, August and October 2014, the water quality of the San Juan River was assessed. To this aim, six sampling points were established, where water samples and macroinvertebrates for physical-chemical and hydrobiological analysis were collected. Three biotic indexes were applied and one modified: EPT (Ephemeroptera, Plecoptera, Trichoptera, BMWP / Col (Biological Monitoring Working Party and ASPT (Average Score per Taxon based on the captured communities of aquatic macroinvertebrates. The results of the physical-chemical variables and biotic indixes indicate that E1 and E2 stations are those with lower degree of contamination, other stations considerably decreased water quality due to economic activities around, and the short distance with the

  6. Projected evolution of California's San Francisco Bay-Delta-river system in a century of climate change.

    Directory of Open Access Journals (Sweden)

    James E Cloern

    Full Text Available BACKGROUND: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding, and growing challenges to sustainability of native species. METHODOLOGY/PRINCIPAL FINDINGS: We linked a series of models to investigate responses of California's San Francisco Estuary-Watershed (SFEW system to two contrasting scenarios of climate change. Model outputs for scenarios of fast and moderate warming are presented as 2010-2099 projections of nine indicators of changing climate, hydrology and habitat quality. Trends of these indicators measure rates of: increasing air and water temperatures, salinity and sea level; decreasing precipitation, runoff, snowmelt contribution to runoff, and suspended sediment concentrations; and increasing frequency of extreme environmental conditions such as water temperatures and sea level beyond the ranges of historical observations. CONCLUSIONS/SIGNIFICANCE: Most of these environmental indicators change substantially over the 21(st century, and many would present challenges to natural and managed systems. Adaptations to these changes will require flexible planning to cope with growing risks to humans and the challenges of meeting demands for fresh water and sustaining native biota. Programs of ecosystem rehabilitation and biodiversity conservation in coastal landscapes will be most likely to meet their objectives if they are designed from considerations that include: (1 an integrated perspective that river-estuary systems are influenced by effects of climate change operating on both watersheds and oceans; (2 varying sensitivity among environmental indicators to the uncertainty of future climates; (3 inevitability of

  7. Projected evolution of California's San Francisco bay-delta-river system in a century of climate change

    Science.gov (United States)

    Cloern, J.E.; Knowles, N.; Brown, L.R.; Cayan, D.; Dettinger, M.D.; Morgan, T.L.; Schoellhamer, D.H.; Stacey, M.T.; van der Wegen, M.; Wagner, R.W.; Jassby, A.D.

    2011-01-01

    Background: Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding, and growing challenges to sustainability of native species. Methodology/Principal Findings: We linked a series of models to investigate responses of California's San Francisco Estuary-Watershed (SFEW) system to two contrasting scenarios of climate change. Model outputs for scenarios of fast and moderate warming are presented as 2010-2099 projections of nine indicators of changing climate, hydrology and habitat quality. Trends of these indicators measure rates of: increasing air and water temperatures, salinity and sea level; decreasing precipitation, runoff, snowmelt contribution to runoff, and suspended sediment concentrations; and increasing frequency of extreme environmental conditions such as water temperatures and sea level beyond the ranges of historical observations. Conclusions/Significance: Most of these environmental indicators change substantially over the 21st century, and many would present challenges to natural and managed systems. Adaptations to these changes will require flexible planning to cope with growing risks to humans and the challenges of meeting demands for fresh water and sustaining native biota. Programs of ecosystem rehabilitation and biodiversity conservation in coastal landscapes will be most likely to meet their objectives if they are designed from considerations that include: (1) an integrated perspective that river-estuary systems are influenced by effects of climate change operating on both watersheds and oceans; (2) varying sensitivity among environmental indicators to the uncertainty of future climates; (3) inevitability of biological community

  8. Projected evolution of California's San Francisco Bay-Delta-River System in a century of continuing climate change

    Science.gov (United States)

    Cloern, James E.; Knowles, Noah; Brown, Larry R.; Cayan, Daniel; Dettinger, Michael D.; Morgan, Tara L.; Schoellhamer, David H.; Stacey, Mark T.; van der Wegen, Mick; Wagner, R. Wayne; Jassby, Alan D.

    2011-01-01

    Background Accumulating evidence shows that the planet is warming as a response to human emissions of greenhouse gases. Strategies of adaptation to climate change will require quantitative projections of how altered regional patterns of temperature, precipitation and sea level could cascade to provoke local impacts such as modified water supplies, increasing risks of coastal flooding, and growing challenges to sustainability of native species. Methodology/Principal Findings We linked a series of models to investigate responses of California's San Francisco Estuary-Watershed (SFEW) system to two contrasting scenarios of climate change. Model outputs for scenarios of fast and moderate warming are presented as 2010–2099 projections of nine indicators of changing climate, hydrology and habitat quality. Trends of these indicators measure rates of: increasing air and water temperatures, salinity and sea level; decreasing precipitation, runoff, snowmelt contribution to runoff, and suspended sediment concentrations; and increasing frequency of extreme environmental conditions such as water temperatures and sea level beyond the ranges of historical observations. Conclusions/Significance Most of these environmental indicators change substantially over the 21st century, and many would present challenges to natural and managed systems. Adaptations to these changes will require flexible planning to cope with growing risks to humans and the challenges of meeting demands for fresh water and sustaining native biota. Programs of ecosystem rehabilitation and biodiversity conservation in coastal landscapes will be most likely to meet their objectives if they are designed from considerations that include: (1) an integrated perspective that river-estuary systems are influenced by effects of climate change operating on both watersheds and oceans; (2) varying sensitivity among environmental indicators to the uncertainty of future climates; (3) inevitability of biological community

  9. Carbonate mound reservoirs in the paradox formation: An outcrop analogue along the San Juan River, Southeastern Utah

    Energy Technology Data Exchange (ETDEWEB)

    Chidsey, T. C. Jr.; Morgan, C.D. [Utah Geological Survey, Salt Lake City, UT (United States); Eby, D.E. [Eby Petrography & Consulting, Inc., Littleton, CO (United States)] [and others

    1996-06-01

    Carbonate mound reservoirs within the Pennsylvanian (Desmoinesian) Paradox Formation are major producers of oil and gas in the Paradox basin of Utah, Colorado, and Arizona. Outcrops of the Paradox Formation along the San Juan River of southeastern Utah provide small-scale analogues of reservoir heterogeneity, flow barriers and baffles, lithofacies, and geometry. These characteristics can be used in reservoir simulation models for secondary/tertiary recovery of oil from small fields in the basin. Exposures of the Paradox Formation Ismay zone in the Wild Horse Canyon area display lateral facies changes from phylloid algal mounds to off-mound detrital wedges or fans bounded at the top by a flooding surface. The phylloid mounds are composed of bafflestone, skeletal grainstone, packstone, and cementstone. Algal plates, brachiopods, bryozoans, and rugose corals are commonly found in the phylloid mounds. The mound wall is composed of rudstone, lumpstone, and cementstone. The detrital fan consists of transported algal material, grainstone, and mudstone with open-marine fossils. Within the mound complex is an inter-mound trough tentatively interpreted to be a tidal channel. The geometry and composition of the rocks in the trough significantly add to the overall heterogeneity of the mound. Reservoir models are being developed for possible water- and carbon-dioxide floods of small Paradox basin fields to determine the most effective secondary/tertiary recovery method. The models will include lithologic fabrics, flooding surfaces, and inter-mound troughs, based on the mound complex exposed at Wild Horse Canyon. This project may also provide reservoir information for simulation models in small Paleozoic carbonate mound fields in other basins worldwide.

  10. Algal and Cyanobacterial communities in two rivers of the province of San Luis (Argentina subjected to anthropogenic influence

    Directory of Open Access Journals (Sweden)

    Jorgelina Daruich

    2013-03-01

    Full Text Available AIM: The use of biological indicators of pollution has increased in recent years as an alternative to the monitoring of water quality. Phytoplankton community selectively respond to different anthropogenic disturbances, such as water dams and the increase of nutrients coming from city centers, which leads to the eutrophication of the aquatic environment. The objective of this work was to evaluate the composition and the structure of the algal and Cyanobacterial communities in order to prove human influences by the presence of reservoirs with some degree of eutrophication and the impact of urbanization in two rivers at the Bebedero basin in San Luis province (Argentine. METHODS: Four sites were sampled: two of them were placed before dams and villages (V1 and (P1 and two after them (V2 and (P2. Each site was visited in every season of the year: summer, autumn, winter and spring. Qualitative and semi-quantitative phytoplankton samples were taken, and the frequency of occurrence was determined. Variations between pairs of sampling stations were analyzed through the Jaccard similarity and complementarity indices. RESULTS: Ninety two taxa were identified, of which diatoms were the most frequent. The most affected station was P2 with high abundance, less diversity and equitability, whereas the species more tolerant to the presence of organic matter were Melosira varians, Navicula tripunctata, Oscillatoria limosa, Gomphonema parvulum and Coelastrum microporum, and some species of euglenophytas. CONCLUSION: Therefore, the structure and composition of the algal and Cyanobacterial communities allowed us to identify sections more sensitive to human-induced alterations.

  11. Presence of multi-drug resistant pathogenic Escherichia coli in the San Pedro River located in the State of Aguascalientes, Mexico.

    Science.gov (United States)

    Ramírez Castillo, Flor Y; Avelar González, Francisco J; Garneau, Philippe; Márquez Díaz, Francisco; Guerrero Barrera, Alma L; Harel, Josée

    2013-01-01

    Contamination of surface waters in developing countries is a great concern. Treated and untreated wastewaters have been discharged into rivers and streams, leading to possible waterborne infection outbreaks and may represent a significant dissemination mechanism of antibiotic resistance genes. In this study, the water quality of San Pedro River, the main river and pluvial collector of the Aguascalientes State, Mexico was assessed. Thirty sample locations were tested throughout the River. The main physicochemical parameters of water were evaluated. Results showed high levels of fecal pollution as well as inorganic and organic matter abundant enough to support the heterotrophic growth of microorganisms. These results indicate poor water quality in samples from different locations. One hundred and fifty Escherichia coli were collected and screened by PCR for several virulence genes. Isolates were classified as either pathogenic (n = 91) or commensal (n = 59). The disc diffusion method was used to determine antimicrobial susceptibility to 13 antibiotics. Fifty-two percent of the isolates were resistant to at least one antimicrobial agent and 30.6% were multi-resistant. Eighteen E. coli strains were quinolone resistant of which 16 were multi-resistant. Plasmid-mediated quinolone resistance (PMQR) genes were detected in 12 isolates. Mutations at the Ser-83→Leu and/or Asp-87→Asn in the gyrA gene were detected as well as mutations at the Ser-80→Ile in parC. An E. coli microarray (Maxivirulence V 3.1) was used to characterize the virulence and antimicrobial resistance genes profiles of the fluoroquinolone-resistant isolates. Antimicrobial resistance genes such as bla TEM, sulI, sulII, dhfrIX, aph3 (strA), and tet (B) as well as integrons were found in fluoroquinolone (FQ) resistance E. coli strains. The presence of potential pathogenic E. coli and antibiotic resistance in San Pedro River such as FQ resistant E. coli could pose a potential threat to human and animal

  12. Electrical resistivity investigation of fluvial geomorphology to evaluate potential seepage conduits to agricultural lands along the San Joaquin River, Merced County, California, 2012–13

    Science.gov (United States)

    Groover, Krishangi D.; Burgess, Matthew K.; Howle, James F.; Phillips, Steven P.

    2017-02-08

    Increased flows in the San Joaquin River, part of the San Joaquin River Restoration Program, are designed to help restore fish populations. However, increased seepage losses could result from these higher restoration flows, which could exacerbate existing drainage problems in neighboring agricultural lands and potentially damage crops. Channel deposits of abandoned river meanders that are hydraulically connected to the river could act as seepage conduits, allowing rapid and widespread water-table rise during restoration flows. There is a need to identify the geometry and properties of these channel deposits to assess their role in potential increased seepage effects and to evaluate management alternatives for reducing seepage. Electrical and electromagnetic surface geophysical methods have provided a reliable proxy for lithology in studies of fluvial and hyporheic systems where a sufficient electrical contrast exists between deposits of differing grain size. In this study, direct-current (DC) resistivity was used to measure subsurface resistivity to identify channel deposits and to map their subsurface geometry. The efficacy of this method was assessed by using DC resistivity surveys collected along a reach of the San Joaquin River in Merced County, California, during the summers of 2012 and 2013, in conjunction with borings and associated measurements from a hydraulic profiling tool. Modeled DC resistivity data corresponded with data from cores, hand-auger samples, a hydraulic profiling tool, and aerial photographs, confirming that DC resistivity is effective for differentiating between silt and sand deposits in this setting. Modeled DC resistivity data provided detailed two-dimensional cross-sectional resistivity profiles to a depth of about 20 meters. The distribution of high-resistivity units in these profiles was used as a proxy for identifying areas of high hydraulic conductivity. These data were used subsequently to guide the location and depth of wells

  13. Juan Gabriel and audience interpretation. cultural impressions of effeminacy and sexuality in Mexico.

    Science.gov (United States)

    Sowards, S K

    2000-01-01

    Juan Gabriel's purported effeminacy and sexuality have made him a controversial subject in Mexico, but still loved by fans. Juan Gabriel, by trying to gain acceptance into Mexican society, has become part of a hybrid culture, between the feminine/masculine and homosexual/bisexual/heterosexual groups. This study focuses on interviews with 20 participants who discuss Juan Gabriel's popularity and sexuality. The findings of the study indicate that Juan Gabriel may be considered by his fans to be effeminate, and consequently homosexual. Even though homophobia is widespread in Mexico, Juan Gabriel's fans tend to ignore or exoticize his sexuality, thus affording his success. It is also possible that Juan Gabriel, consciously or not, uses his controversial sexuality as a way to generate popular interest.

  14. The manifesto as genre in Ibsen's John Gabriel Borkman

    Directory of Open Access Journals (Sweden)

    Christine Korte

    2015-02-01

    Full Text Available This article examines John Gabriel Borkman’s neo-aristocratic performance of power and authority in Ibsen’s eponymously titled play (1896. After his downfall, John Gabriel has retreated into his once grand reception hall wherein he has become like a petrified relic from a preceding era. His performance within the “fading glory” of the upstairs hall– a veritable theatre for his delusions of grandeur – is one of an outmoded type of bourgeois “hero” whose flagrantly illicit dealings are no longer tenable as capitalism becomes ever-more “rational” and bureaucratic in its façade. The article focuses on John Gabriel’s performance of a “sovereign” or charismatic authority and examines his future visions as “manifestos”. The manifesto is a form belonging to a feudal era of rule by divine right – one that is necessarily “theatrical” in its performance of a legitimate authority. Assuming the voice of the sovereign, John Gabriel attempts to address the needs of the iron-ore miners – a desiring, albeit latent force in Ibsen’s text. The desires of the workers, however, are continually effaced by the bewitching powers of capitalist abstraction, which account for the alienation of family and individuals in Ibsen’s play.   Comparing John Gabriel’s manifesto with Marx and Engels’ Communist Manifesto not only accounts for the end of an age of neo-aristocratic bourgeois decadence, but also marks labour as the definitive socio-political issue of the late 19th century. Where John Gabriel uses a dramaturgy rooted in past models of rule to address the workers in his vision of a benevolent “kingdom”, the Communist Manifesto heralds the death of his class and replaces the voice of the “sovereign authority” with the self-authorising voice of the workers themselves. Borkman’s fatal flaw then is failing to sufficiently address the plight of the iron-ore miners with whom he claims intimate acquaintance but with whom

  15. Erosion characteristics and horizontal variability for small erosion depths in the Sacramento-San Joaquin River Delta, California, USA

    Science.gov (United States)

    Schoellhamer, David H.; Manning, Andrew J.; Work, Paul

    2017-01-01

    Erodibility of cohesive sediment in the Sacramento-San Joaquin River Delta (Delta) was investigated with an erosion microcosm. Erosion depths in the Delta and in the microcosm were estimated to be about one floc diameter over a range of shear stresses and times comparable to half of a typical tidal cycle. Using the conventional assumption of horizontally homogeneous bed sediment, data from 27 of 34 microcosm experiments indicate that the erosion rate coefficient increased as eroded mass increased, contrary to theory. We believe that small erosion depths, erosion rate coefficient deviation from theory, and visual observation of horizontally varying biota and texture at the sediment surface indicate that erosion cannot solely be a function of depth but must also vary horizontally. We test this hypothesis by developing a simple numerical model that includes horizontal heterogeneity, use it to develop an artificial time series of suspended-sediment concentration (SSC) in an erosion microcosm, then analyze that time series assuming horizontal homogeneity. A shear vane was used to estimate that the horizontal standard deviation of critical shear stress was about 30% of the mean value at a site in the Delta. The numerical model of the erosion microcosm included a normal distribution of initial critical shear stress, a linear increase in critical shear stress with eroded mass, an exponential decrease of erosion rate coefficient with eroded mass, and a stepped increase in applied shear stress. The maximum SSC for each step increased gradually, thus confounding identification of a single well-defined critical shear stress as encountered with the empirical data. Analysis of the artificial SSC time series with the assumption of a homogeneous bed reproduced the original profile of critical shear stress, but the erosion rate coefficient increased with eroded mass, similar to the empirical data. Thus, the numerical experiment confirms the small-depth erosion hypothesis. A linear

  16. Fine-Resolution Modeling of the Santa Cruz and San Pedro River Basins for Climate Change and Riparian System Studies

    Science.gov (United States)

    Robles-Morua, A.; Vivoni, E. R.; Volo, T. J.; Rivera, E. R.; Dominguez, F.; Meixner, T.

    2011-12-01

    This project is part of a multidisciplinary effort aimed at understanding the impacts of climate variability and change on the ecological services provided by riparian ecosystems in semiarid watersheds of the southwestern United States. Valuing the environmental and recreational services provided by these ecosystems in the future requires a numerical simulation approach to estimate streamflow in ungauged tributaries as well as diffuse and direct recharge to groundwater basins. In this work, we utilize a distributed hydrologic model known as the TIN-based Real-time Integrated Basin Simulator (tRIBS) in the upper Santa Cruz and San Pedro basins with the goal of generating simulated hydrological fields that will be coupled to a riparian groundwater model. With the distributed model, we will evaluate a set of climate change and population scenarios to quantify future conditions in these two river systems and their impacts on flood peaks, recharge events and low flows. Here, we present a model confidence building exercise based on high performance computing (HPC) runs of the tRIBS model in both basins during the period of 1990-2000. Distributed model simulations utilize best-available data across the US-Mexico border on topography, land cover and soils obtained from analysis of remotely-sensed imagery and government databases. Meteorological forcing over the historical period is obtained from a combination of sparse ground networks and weather radar rainfall estimates. We then focus on a comparison between simulation runs using ground-based forcing to cases where the Weather Research Forecast (WRF) model is used to specify the historical conditions. Two spatial resolutions are considered from the WRF model fields - a coarse (35-km) and a downscaled (10- km) forcing. Comparisons will focus on the distribution of precipitation, soil moisture, runoff generation and recharge and assess the value of the WRF coarse and downscaled products. These results provide confidence in

  17. Occurrence and concentrations of selected trace elements, halogenated organic compounds, and polycyclic aromatic hydrocarbons in streambed sediments and results of water-toxicity testing in Westside Creeks and the San Antonio River, San Antonio, Texas, 2014

    Science.gov (United States)

    Crow, Cassi L.; Wilson, Jennifer T.; Kunz, James L.

    2016-12-01

    Sediment samples and samples for water-toxicity testing were collected during 2014 from several streams in San Antonio, Texas, known locally as the Westside Creeks (Alazán, Apache, Martínez, and San Pedro Creeks) and from the San Antonio River. Samples were collected during base flow and after periods of stormwater runoff (poststorm conditions) to determine baseline sediment- and water-quality conditions. Streambed-sediment samples were analyzed for selected constituents, including trace elements and organic contaminants such as pesticides, polychlorinated biphenyls (PCBs), brominated flame retardants, and polycyclic aromatic hydrocarbons (PAHs). Potential risks of contaminants in sediment were evaluated by comparing concentrations of contaminants in sediment to two effects-based sediment-quality guidelines: (1) a lower level, called the threshold effect concentration, below which, harmful effects to benthic biota are not expected, and (2) a higher level, the probable effect concentration (PEC), above which harmful effects are expected to occur frequently. Samples for water-toxicity testing were collected from each stream to provide information about fish toxicity in the study area. The trace metal lead was detected at potentially toxic concentrations greater than the PEC in both the base-flow and poststorm samples collected at two sites sampled on San Pedro Creek. The PECs for the pesticides dichlorodiphenyldichloroethane, dichlorodiphenyldichloroethylene, dichlorodiphenyltrichloroethane, and chlordane were exceeded in some of the samples at the same two sites on San Pedro Creek. Brominated flame retardants and polybrominated diphenyl ether (PBDE) 85, 153, and 154 were found in all streambed-sediment samples. Federal Environmental Quality Guidelines established by Environment Canada for PBDE 99 and PBDE 100 were exceeded in all samples in which PBDE 99 was detected and in a majority of the samples in which PBDE 100 was detected; the greatest concentrations

  18. Emerging pollutants in the Esmeraldas watershed in Ecuador: discharge and attenuation of emerging organic pollutants along the San Pedro-Guayllabamba-Esmeraldas rivers.

    Science.gov (United States)

    Voloshenko-Rossin, A; Gasser, G; Cohen, K; Gun, J; Cumbal-Flores, L; Parra-Morales, W; Sarabia, F; Ojeda, F; Lev, O

    2015-01-01

    Water quality characteristics and emerging organic pollutants were sampled along the San Pedro-Guayllabamba-Esmeraldas River and its main water pollution streams in the summer of 2013. The annual flow rate of the stream is 22 000 Mm(3) y(-1) and it collects the wastewater of Quito-Ecuador in the Andes and supplies drinking water to the city of Esmeraldas near the Pacific Ocean. The most persistent emerging pollutants were carbamazepine and acesulfame, which were found to be stable along the San Pedro-Guayllabamba-Esmeraldas River, whereas the concentration of most other organic emerging pollutants, such as caffeine, sulfamethoxazole, venlafaxine, O-desmethylvenlafaxine, and steroidal estrogens, was degraded to a large extent along the 300 km flow. The mass rate of the sum of cocaine and benzoylecgonine, its metabolite, was increased along the stream, which may be attributed to coca plantations and wild coca trees. This raises the possibility of using river monitoring as an indirect way to learn about changes in coca plantations in their watersheds. Several organic emerging pollutants, such as venlafaxine, carbamazepine, sulphamethoxazole, and benzoylecgonine, survived even the filtration treatment at the Esmeraldas drinking water system, though all except for benzoylecgonine are found below 20 ng L(-1), and are therefore not likely to cause adverse health effects. The research provides a way to compare drug consumption in a major Latin American city (Quito) and shows that the consumption of most sampled drugs (carbamazepine, venlafaxine, O-desmethylvenlafaxine, sulphamethoxazole, ethinylestradiol) was below their average consumption level in Europe, Israel, and North America.

  19. Abundancia y distribución de las especies ícticas (Osteichthyes del río San Francisco-Cosquín, Córdoba, Argentina Abundance and distribution of fish species (Osteichthyes from San Francisco - Cosquín river in Córdoba, Argentina

    Directory of Open Access Journals (Sweden)

    Andrea Cecilia Hued

    Full Text Available It was made the characterization of the San Francisco-Cosquín Mountain River fish community, Córdoba, Argentina. Samples of fish were taken from selected sites from November 1998 to November 1999. Eleven species were recorded, eight of which are first reports for this river. Relative abundance for each species, species richness, diversity and dominance were estimated. Bryconamericus iheringi (Boulenger, 1887 y Jenynsia multidentata (Jenyns, 1842 were the most abundant.

  20. San Joaquin River Up-Stream DO TMDL Project Task 4: MonitoringStudy Interim Task Report #3

    Energy Technology Data Exchange (ETDEWEB)

    Stringfellow, William; Borglin, Sharon; Dahlgren, Randy; Hanlon,Jeremy; Graham, Justin; Burks, Remie; Hutchinson, Kathleen

    2007-03-30

    The purpose of the Dissolved Oxygen Total Maximum Daily LoadProject (DO TMDLProject) is to provide a comprehensive understanding ofthe sources and fate of oxygen consuming materials in the San JoaquinRiver (SJR) watershed between Channel Point and Lander Avenue (upstreamSJR). When completed, this study will provide the stakeholders anunderstanding of the baseline conditions of the basin, provide input foran allocation decision, and provide the stakeholders with a tool formeasuring the impact of any waterquality management program that may beimplemented as part of the DO TMDL process. Previous studies haveidentified algal biomass as the most significant oxygen-demandingsubstance in the DO TMDL Project study-area between of Channel Point andLander Ave onthe SJR. Other oxygen-demanding substances found in theupstream SJR include ammonia and organic carbon from sources other thanalgae. The DO TMDL Project study-area contains municipalities, dairies,wetlands, cattle ranching, irrigated agriculture, and industries thatcould potentially contribute biochemical oxygen demand (BOD) to the SJR.This study is designed to discriminate between algal BOD and othersources of BOD throughout the entire upstream SJR watershed. Algalbiomass is not a conserved substance, but grows and decays in the SJR;hence, characterization of oxygen-demanding substances in the SJR isinherently complicated and requires an integrated effort of extensivemonitoring, scientific study, and modeling. In order to achieve projectobjectives, project activities were divided into a number of Tasks withspecific goals and objectives. In this report, we present the results ofmonitoring and research conducted under Task 4 of the DO TMDL Project.The major objective of Task 4 is to collect sufficient hydrologic (flow)and water quality (WQ) data to characterize the loading of algae, otheroxygen-demanding materials, and nutrients fromindividual tributaries andsub-watersheds of the upstream SJR between Mossdale and

  1. Relative abundance and distribution of fishes within an established Area of Critical Environmental Concern, of the Amargosa River Canyon and Willow Creek, Inyo and San Bernardino Counties, California

    Science.gov (United States)

    Scoppettone, G. Gary; Hereford, Mark E.; Rissler, Peter H.; Johnson, Danielle M.; Salgado, Antonio

    2011-01-01

    The Amargosa River Canyon of San Bernardino and Inyo County, California, has been designated by the Bureau of Land Management as an Area of Critical Environmental Concern, due in part to its unique flora and fauna. As a task of the Area of Critical Environmental Concern implementation plan, a survey of native fishes was conducted from June 21 to August 12, 2010. Geographic Information System tools were used to map sampling locations, which were spaced at 50-meter intervals. Global Positioning Systems were used to locate sampling stations, and stations with adequate water for successful trapping were sampled with baited minnow traps. Amargosa River pupfish (Cyprinodon nevadensis amargosae) and speckled dace (Rhinichthys osculus spp.) were widespread throughout Armargosa River Canyon. Throughout the study area 8,558 pupfish were captured at 194 stations; 3,472 speckled dace were captured at 210 stations; 238 red-swamp crayfish (Procambarus clarkia) were captured at 83 stations; and 1,095 western mosquitofish (Gambusia affinus) were captured at 110 stations. Pupfish were most abundant in open water habitat with native riparian vegetation, and they were significantly less abundant where the stream was completely covered by cattails or where saltcedar (Tamarix sp.) dominated the riparian corridor. There was no relationship between stream cover and speckled dace distribution. Non-native western mosquitofish and red-swamp crayfish densities were significantly higher in stream reaches dominated by saltcedar. The continued spread of saltcedar threatens to negatively affect pupfish and potentially reduce speckled dace abundance throughout the Amargosa River Canyon. This study can serve as baseline information for observing native fish populations in the future, as related to potential changes to the Amargosa River Canyon ecosystem.

  2. Presence of multi-drug resistant pathogenic Escherichia coli in the San Pedro River located in the State of Aguascalientes, Mexico.

    Directory of Open Access Journals (Sweden)

    Flor Yazmin Ramirez Castillo

    2013-06-01

    Full Text Available Contamination of surface waters in developing countries is a great concern. Treated and untreated wastewaters have been discharged into rivers and streams, leading to possible waterborne infection outbreaks and may represent a significant dissemination mechanism of antibiotic resistance genes. In this study, the water quality of San Pedro River, the main river and pluvial collector of the Aguascalientes State, Mexico was assessed. Thirty sample locations were tested throughout the River. The main physicochemical parameters of water were evaluated. Results showed high levels of fecal pollution as well as inorganic and organic matter abundant enough to support the heterotrophic growth of microorganisms. These results indicate poor water quality in samples from different locations. One hundred and fifty Escherichia coli were collected and screened by PCR for several virulence genes. Isolates were classified as either pathogenic (n = 91 or commensal (n = 59. The disc diffusion method was used to determine antimicrobial susceptibility to 13 antibiotics. Fifty-two percent of the isolates were resistant to at least one antimicrobial agent and 30.6% were multi-resistant. Eighteen E. coli strains were quinolone resistant of which 16 were multi-resistant. Plasmid-mediated quinolone resistance genes were detected in 12 isolates. Mutations at the Ser-83→Leu and/or Asp-87→Asn in the gyrA gene were detected as well as mutations at the Ser-80→Ile in parC. An E. coli microarray (Maxivirulence V 3.1 was used to characterize the virulence and antimicrobial resistance genes profiles of the fluoroquinolone-resistant isolates. Antimicrobial resistance genes such as blaTEM, sulI, sulII, dhfrIX, aph3 (strA and tet (B as well as integrons were found in fluoroquinolone resistance E. coli strains. The presence of potential pathogenic E. coli and antibiotic resistance in San Pedro River such as fluoroquinolone resistant E. coli could pose a potential threat to human

  3. San Isidro (Madrid: 1862-2002. New Palaeolithic finds from the +30 terrace of the Manzanares river

    Directory of Open Access Journals (Sweden)

    Gómez Hernanz, Juan

    2005-06-01

    Full Text Available The archaeo-palaeontological survey carried out on a site located at Cerro de San Isidro (Madrid, because of a project of construction in that place, has led to the documentation of a small part of the ancient terrace which has almost totally disappeared as a result of quarrying. The study of the stratigraphic sequence, the recovery of several pieces of lithic industry, as well as pollen analyses, have allowed us to contribute new data to the already known “Terrace of San Isidro” that was known from the middle of the nineteenth century.

    El seguimiento arqueo-paleontológico realizado en un solar sito en el Cerro de San Isidro, con motivo de un proyecto constructivo en dicho lugar, ha llevado a la documentación de un pequeño resto de la antigua terraza a +30 m, probablemente muy mal conservada por su explotación como arenero en el pasado y por las actuaciones urbanísticas en la zona. El estudio de la secuencia estratigráfica, la recuperación de varias piezas de industria lítica, así como la realización de análisis polínicos, ha permitido aportar nuevos datos a los ya conocidos de la denominada “Terraza de San Isidro” que se remontan a mediados del siglo XIX.

  4. Simulation of streamflow, evapotranspiration, and groundwater recharge in the lower San Antonio River Watershed, South-Central Texas, 2000-2007

    Science.gov (United States)

    Lizarraga, Joy S.; Ockerman, Darwin J.

    2010-01-01

    The U.S. Geological Survey (USGS), in cooperation with the San Antonio River Authority, the Evergreen Underground Water Conservation District, and the Goliad County Groundwater Conservation District, configured, calibrated, and tested a watershed model for a study area consisting of about 2,150 square miles of the lower San Antonio River watershed in Bexar, Guadalupe, Wilson, Karnes, DeWitt, Goliad, Victoria, and Refugio Counties in south-central Texas. The model simulates streamflow, evapotranspiration (ET), and groundwater recharge using rainfall, potential ET, and upstream discharge data obtained from National Weather Service meteorological stations and USGS streamflow-gaging stations. Additional time-series inputs to the model include wastewater treatment-plant discharges, withdrawals for cropland irrigation, and estimated inflows from springs. Model simulations of streamflow, ET, and groundwater recharge were done for 2000-2007. Because of the complexity of the study area, the lower San Antonio River watershed was divided into four subwatersheds; separate HSPF models were developed for each subwatershed. Simulation of the overall study area involved running simulations of the three upstream models, then running the downstream model. The surficial geology was simplified as nine contiguous water-budget zones to meet model computational limitations and also to define zones for which ET, recharge, and other water-budget information would be output by the model. The model was calibrated and tested using streamflow data from 10 streamflow-gaging stations; additionally, simulated ET was compared with measured ET from a meteorological station west of the study area. The model calibration is considered very good; streamflow volumes were calibrated to within 10 percent of measured streamflow volumes. During 2000-2007, the estimated annual mean rainfall for the water-budget zones ranged from 33.7 to 38.5 inches per year; the estimated annual mean rainfall for the entire

  5. Biodegradation of sedimentary organic matter associated with coalbed methane in the Powder River and San Juan Basins, U.S.A.

    Energy Technology Data Exchange (ETDEWEB)

    Formolo, Michael; Petsch, Steven [Department of Geosciences, University of Massachusetts, Amherst, MA, 01003-9297 (United States); Martini, Anna [Department of Geology, Amherst College, Amherst, MA, 01002 (United States)

    2008-10-02

    The Powder River Basin and San Juan Basin, U.S.A., are two of the most productive coalbed methane reserves in the world. Of particular interest is the microbial biodegradation of coal beds associated with this natural gas production. Biogenic methane production is indicated as a significant component to the total gas resources in the San Juan Basin, and as the nearly sole source for the shallow coals of the Powder River Basin. Molecular and isotopic signatures indicate a microbial origin for the gas. Geochemical characteristics of formation waters, such as elevated alkalinity and {sup 13}C-enriched dissolved inorganic carbon (DIC), further support extensive microbial degradation of coal organic matter associated with methanogenesis. Extractable organic matter isolated from coals in both basins point to patterns of hydrocarbon biodegradation in coals restricted to specific depths. To some extent, biodegradation patterns are similar to those observed in methanogenic, biodegraded black shales of the mid-continent of the United States. Specifically, both coals and shales exhibit near-quantitative removal of straight-chain and acyclic isoprenoid hydrocarbons. However, loss of aromatic hydrocarbons in the coals proceeds prior to the extensive removal of the saturated hydrocarbons, in contrast to what is conventionally observed in biodegraded petroleum systems or in black shales. In addition, previous thermal maturation histories in both the Fruitland and Fort Union coalbed methane systems have little impact on more recent hydrocarbon biodegradation. Instead, localized hydrologic conditions and subsurface geology likely play important roles in controlling the extents of biodegradation and methanogenesis. These results suggest that biodegradation of hydrocarbons coupled with methanogenesis may develop regardless of organic matter source across a range of inherited thermal maturities. (author)

  6. Ferricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado

    Science.gov (United States)

    Yager, Douglas B.; Church, Stanley E.; Verplanck, Philip L.; Wirt, Laurie

    2003-01-01

    During 1996 to 2000, the Bureau of Land Management, National Park Service, Environmental Protection Agency, United States Department of Agriculture (USDA) Forest Service, and the U.S. Geological Survey (USGS) developed a coordinated strategy to (1) study the environmental effects of historical mining on Federal lands, and (2) remediate contaminated sites that have the greatest impact on water quality and ecosystem health. This dataset provides information that contributes to these overall objectives and is part of the USGS Abandoned Mine Lands Initiative. Data presented here represent ferricrete occurrences and selected iron bogs and springs in the upper Animas River watershed in San Juan County near Silverton, Colorado. Ferricretes (stratified iron and manganese oxyhydroxide-cemented sedimentary deposits) are one indicator of the geochemical baseline conditions as well as the effect that weathering of mineralized rocks had on water quality in the Animas River watershed prior to mining. Logs and wood fragments preserved in several ferricretes in the upper Animas River watershed, collected primarily along streams, yield radiocarbon ages of modern to 9,580 years B.P. (P.L. Verplanck, D.B. Yager, and S.E. Church, work in progress). The presence of ferricrete deposits along the current stream courses indicates that climate and physiography of the Animas River watershed have been relatively constant throughout the Holocene and that weathering processes have been ongoing for thousands of years prior to historical mining activities. Thus, by knowing where ferricrete is preserved in the watershed today, land-management agencies have an indication of (1) where metal precipitation from weathering of altered rocks has occurred in the past, and (2) where this process is ongoing and may confound remediation efforts. These data are included as two coverages-a ferricrete coverage and a bogs and springs coverage. The coverages are included in ArcInfo shapefile and Arc

  7. 2002 Water-Table Contours of the Mojave River and the Morongo Ground-Water Basins, San Bernardino County, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The Mojave River and Morongo ground-water basins are in the southwestern part of the Mojave Desert in southern California. Ground water from these basins supplies a...

  8. 2010 Water-Table Contours of the Mojave River and the Morongo Groundwater Basins, San Bernardino County, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — During 2010, the U.S. Geological Survey and other agencies made approximately 2,500 water-level measurements in the Mojave River and Morongo groundwater basins....

  9. Quantification and Simulation of Metal Loading to the Upper Animas River, Eureka to Silverton, San Juan County, Colorado, September 1997 and August 1998

    Science.gov (United States)

    Paschke, Suzanne S.; Kimball, Briant A.; Runkel, Robert L.

    2005-01-01

    Drainage from abandoned and inactive mines and from naturally mineralized areas in the San Juan Mountains of southern Colorado contributes metals to the upper Animas River near Silverton, Colorado. Tracer-injection studies and associated synoptic sampling were performed along two reaches of the upper Animas River to develop detailed profiles of stream discharge and to locate and quantify sources of metal loading. One tracer-injection study was performed in September 1997 on the Animas River reach from Howardsville to Silverton, and a second study was performed in August 1998 on the stream reach from Eureka to Howardsville. Drainage in the upper Animas River study reaches contributed aluminum, calcium, copper, iron, magnesium, manganese, sulfate, and zinc to the surface-water system in 1997 and 1998. Colloidal aluminum, dissolved copper, and dissolved zinc were attenuated through a braided stream reach downstream from Eureka. Instream dissolved copper concentrations were lower than the State of Colorado acute and chronic toxicity standards downstream from the braided reach to Silverton. Dissolved iron load and concentrations increased downstream from Howardsville and Arrastra Gulch, and colloidal iron remained constant at low concentrations downstream from Howardsville. Instream sulfate concentrations were lower than the U.S. Environmental Protection Agency's secondary drinking-water standard of 250 milligrams per liter throughout the two study reaches. Elevated zinc concentrations are the primary concern for aquatic life in the upper Animas River. In the 1998 Eureka to Howardsville study, instream dissolved zinc load increased downstream from the Forest Queen mine, the Kittimack tailings, and Howardsville. In the 1997 Howardsville to Silverton study, there were four primary areas where zinc load increased. First, was the increase downstream from Howardsville and abandoned mining sites downstream from the Cunningham Gulch confluence, which also was measured during

  10. High Performance Computing-based Assessment of the Impacts of Climate Change on the Santa Cruz and San Pedro River Basin at Very High Resolution

    Science.gov (United States)

    Robles-Morua, A.; Vivoni, E. R.; Rivera-Fernandez, E. R.; Dominguez, F.; Meixner, T.

    2012-12-01

    Assessing the impact of climate change on large river basins in the southwestern United States is important given the natural water scarcity in the region. The bimodal distribution of annual precipitation also presents a challenge as differential climate impacts during the winter and summer seasons are not currently well understood. In this work, we focus on the hydrological consequences of climate change in the Santa Cruz and San Pedro river basins along the Arizona-Sonora border at high spatiotemporal resolutions (~100 m and ~1 hour). These river systems support rich ecological communities along riparian corridors that provide habitat to migratory birds and support recreational and economic activities. Determining the climate impacts on riparian communities involves assessing how river flows and groundwater recharge will change with altered temperature and precipitation regimes. In this study, we use a distributed hydrologic model, known as the TIN-based Real-time Integrated Basin Simulator (tRIBS), to generate simulated hydrological fields under historical (1991-2000) and climate change (2031-2040) scenarios obtained from an application of the Weather Research and Forecast (WRF) model. Using the distributed model, we transform the meteorological scenarios from WRF at 10-km, hourly resolution into predictions of the annual water budget, seasonal land surface fluxes and individual hydrographs of flood and recharge events. For this contribution, we selected two full years in the historical period and in the future scenario that represent wet and dry conditions for each decade. Given the size of the two basins, we rely on a high performance computing platform and a parallel domain discretization using sub-basin partitioning with higher resolutions maintained at experimental catchments in each river basin. Model simulations utilize best-available data across the Arizona-Sonora border on topography, land cover and soils obtained from analysis of remotely

  11. Celebrando a Gabriel García Márquez

    Directory of Open Access Journals (Sweden)

    Boletín Cultural y Bibliográfico Banco de la República

    2014-03-01

    Full Text Available Un clásico vivo. Sin duda alguna eso es Gabriel García Márquez, quien en su obra logró crear  un lenguaje con nuevas palabras inconfundibles –como cuando se dice que algo es  macondiano y nadie tiene que consultar el diccionario para saber a qué se refiere. Gabo es, además, un ambiente, una temperatura, una manera de hablar que los colombianos tenemos nítida en nuestra memoria colectiva. Como una invitación para que sigamos leyendo e  interpretando su obra desde perspectivas nuevas y desde aquellas ya establecidas, este número del Boletín Cultural y Bibliográfico reúne artículos de críticos y escritores que se han dedicado a interpelar e interpretar al escritor y a su obra.

  12. Gabriele Stein. Developing Your English Vocabulary: A Systematic New Approach

    Directory of Open Access Journals (Sweden)

    Michaël Abecassis

    2011-10-01

    Full Text Available Gabriele Stein is professor of English linguistics at the University of Heidelberg in Germany and has published widely on lexicography and lexicology. The objective of this book is twofold: to compile a lexical core and to maximise the skills of language students by developing ways of expanding this core. It is intended to function as a teaching aid for teachers of English as well as a self-study book for learners of English as a second language. Lexical knowledge is a crucial part of language acquisition and depends on different external factors such as the age and profession of the learner, his/her goals, expectations and needs in learning a language. Beck et al. (2002 have demonstrated the small extent of the emphasis on the acquisition vocabulary in school curricula.

  13. Gabriel Garcia Marquez; The Significant Message of His Literary Discourse

    Directory of Open Access Journals (Sweden)

    Mohammad B. Aghaei

    2015-03-01

    Full Text Available Gabriel Garcia Marquez’s literary discourse actually portrays the destructive domination of colonial and imperialistic powers and civil wars that led to a series of insecurities and poverty in the community. In fact, whatever he has presented in his works is related to the realities of the continent that have been portrayed in his fictional world. In his works, every single line is a reference to a certain critical point in the history of Latin American continent and provides a magnifying glass for the reader to clearly conceptualize them. His works also represent the contemporary events that are frequently happening in the society. Keywords: Latin America, figurative techniques, legacy of colonialism, violence, Liberal and Conservative parties

  14. A Scientific Workflow Used as a Computational Tool to Assess the Response of the Californian San Joaquin River to Flow Restoration Efforts

    Science.gov (United States)

    Villamizar, S. R.; Gil, Y.; Szekely, P.; Ratnakar, V.; Gupta, S.; Muslea, M.; Silva, F.; Harmon, T.

    2011-12-01

    The San Joaquin River (SJR) restoration effort began in October 2009 with the onset of federally mandated continuous flow. A key objective of the effort is to restore and maintain fish populations in the main stem of the San Joaquin River, from below the Friant Dam to the confluence of the Merced River. In addition to the renewed flows, the restoration effort has brought about several upgraded and new water quality monitoring stations equipped with dissolved oxygen (DO) and temperature sensors. As the SJR response to the restoration efforts will be dictated by a complex combination of hydrodynamic and biogeochemical processes, we propose monitoring whole-stream metabolism as an integrative ecological indicator. Here, we develop and test a near-real time scientific workflow to facilitate the observation of the spatio-temporal distribution of whole-stream metabolism estimates using available monitoring station flow and water quality data. The scientific objective is to identify correlations between whole-stream metabolism estimates and the seasonally variable flow and flow disturbances (e.g., flood-control releases), which are the primary driver of stream ecosystems. To accomplish this requires overcoming technical challenges in terms of both data collection and data analysis because (1) the information required for this multi-site, long-term study, originates from different sources with the implication of different associated properties (data integrity, sampling intervals, units), and (2) the variability of the interim flows requires adaptive model selection within the framework of the metabolism calculations. These challenges are addressed by using a scientific workflow in which semantic metadata is generated as the data is prepared and then subsequently used to select and configure models, effectively customizing them to the current data. Data preparation involves the extraction, cleaning, normalization and integration of the data coming from sensors and third

  15. Diel activity patterns of juvenile late fall-run Chinook salmon with implications for operation of a gated water diversion in the Sacramento–San Joaquin River Delta

    Science.gov (United States)

    Plumb, John M.; Adams, Noah S.; Perry, Russell W.; Holbrook, Christopher; Romine, Jason G.; Blake, Aaron R.; Burau, Jon R.

    2016-01-01

    In the Sacramento-San Joaquin River Delta, California, tidal forces that reverse river flows increase the proportion of water and juvenile late fall-run Chinook salmon diverted into a network of channels that were constructed to support agriculture and human consumption. This area is known as the interior delta, and it has been associated with poor fish survival. Under the rationale that the fish will be diverted in proportion to the amount of water that is diverted, the Delta Cross Channel (DCC) has been prescriptively closed during the winter out-migration to reduce fish entrainment and mortality into the interior delta. The fish are thought to migrate mostly at night, and so daytime operation of the DCC may allow for water diversion that minimizes fish entrainment and mortality. To assess this, the DCC gate was experimentally opened and closed while we released 2983 of the fish with acoustic transmitters upstream of the DCC to monitor their arrival and entrainment into the DCC. We used logistic regression to model night-time arrival and entrainment probabilities with covariates that included the proportion of each diel period with upstream flow, flow, rate of change in flow and water temperature. The proportion of time with upstream flow was the most important driver of night-time arrival probability, yet river flow had the largest effect on fish entrainment into the DCC. Modelling results suggest opening the DCC during daytime while keeping the DCC closed during night-time may allow for water diversion that minimizes fish entrainment into the interior delta.

  16. Improving the Flash Flood Frequency Analysis using dendrogeomorphological evidences in the Arenal River crossing Arenas de San Pedro Village (Spanish Central System)

    Science.gov (United States)

    Ruiz-Villanueva, V.; Ballesteros, J. A.; Díez-Herrero, A.; Bodoque, J. M.

    2009-04-01

    The flash flood frequency analysis in mountainous catchments presents specific scientific challenges. One of the challenges is the relevant gradient in precipitation intensity with altitude. Another challenge is the lack of information from rainfall or discharge gauge stations or from documentary sources. Dendrogeomorphology studies the response in the wood growth pattern and the botanical signs on the trees affected by geomorphological processes. With regard to the flood frequency, the dendrogeomorphological evidences bring forward valuable infomation about single past events (with annual or even seasonal precision) and their occurrence periodicity. The main macro-evidence that we can find in the tree trunk is a stem scar originated by a wound in the bark of the tree. When the tree grows, this wound remains reflected in the tree ring sequence. The best way to analyze the tree ring sequence is by using a complete section of the trunk, this couldn't be possible unless the tree is cut down. Due to the unfeasibility of cutting down the trees, in Dendrogeomorphology is enough to obtain an increment core, using a Pressler borer. Nevertheless, this study has been based on complete stem sections analysis facilitated for the felling works in the riverine vegetation in the Arenal River, carried out by the Tagus River Water Authority. These felling works have allowed us to obtain sections and to analyze the stump of the tree in situ. On this way, 100 samples of Alnus glutinosa and Fraxinus angustifolia located by the river along the Arenal River crossing Arenas de San Pedro Village (Ávila, northern slopes of the Gredos Mountain Range in the Spanish Central System) have been analyzed. This village is known for its historical problems of flood during extreme events. A meticulous fieldwork has been carried out. Every sample was analyzed locating its geomorphological position, the distance to the riverbed and the height of the stump in which the evidences were observed. Using a

  17. Archaeological Investigations at the San Gabriel Reservoir Districts, Central Texas. Volume 3.

    Science.gov (United States)

    1982-06-01

    A-4 North Fork Granger Cyperaceae ( Sedge fami ly) cont. Cyperus uniflorus T. A N. (otneflower flatsedge) W.S U Cyju a. Eleocharis eiacrostachys...Cypracaae ( Sedge family) Cars% aa~hibolo Steud. (amphibious sedges ) W Cares cherokeensis Schwein. (Cherokee sedge ) W 11Carex microdonta T. a H...littletooth sedge ) U.S W fAM m stL~achysi~ Kunz*. (dAdar sedge ) S rymerus aicii1ontus L. (yellow nut-grass) W Cynerus odoretus L. (fragrant flatsedge) W W 7

  18. Archaeological Investigations at the San Gabriel Reservoir Districts, Central Texas. Volume 2.

    Science.gov (United States)

    1982-06-01

    area include pecan (CaUa illinoensis ), hackberry (Celtis reticulata), walnut (Juglans ar, willow (Salix spp.), and elm (Ulmus alta). The most common...remains recovered from Feature 6 include acorn fragments and possibly some pecan nutshell ( Carya sp.). However, the identification of pecan is tentative...was used to roast acorns (Quercus sp.), walnuts (Juglans sp.), and pecans ( Carya sp.). Since these nuts are available at app-,1ximately the same time

  19. Archaeological Investigations at the San Gabriel Reservoir Districts Central Texas. Volume I.

    Science.gov (United States)

    1982-06-01

    quantities of leaf litter mix in the upper oortions of the solum where deciduous trees cover the slopes. The soils are well- drained and are moderately...34 association of scrub live oak ( Quercus virginiana var. fusiformus) and post cedar (Juniperus ashei). Although all of the upland areas surveyed have undergone...Analysis of Sediments from Archaeological Sites - Douglas R. Connor 15-19 15.6 Invertebrate Faunal Analysis - Richard and Kate Fullington 15-33 15.7

  20. Archaeological Investigations at the San Gabriel Reservoir Districts, Central Texas. Volume 4.

    Science.gov (United States)

    1982-06-01

    the cemento -enamel junction and this caused numerous abscesses. 1-12 This skeleton is one of the more delicate females, and she was in advanced middle...roots instead of the usual two. An enamel pearl was noted at the cemento -enamel junction on the lingual side of a left maxillary third molar. Individual

  1. Edificio de los Tribunales Municipales - Valle de San Gabriel, Los Ángeles - California (EE. UU.

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1976-04-01

    Full Text Available The most outstanding feature of this construction are the columns of the main facades which are formed by big prefabricated concrete members and which cover the entire height of the four story structure. The Southern facade is protected from the direct sunlight by means of long prefabricated vertical elements. The building is crowned with a large crobel which is supported by the columns. The space of the four storeys is distributed in the following manner: courtrooms, judges chambers and jury assembly; facilities for the district attorney, the public defender and the marshal; rooms for the court reporters; waiting rooms for the witnesses and premises for the accused. The general planning is such that the court rooms separate the private sector from the public one, at the same time as they are connected with the judges chambers and jury assembly. The interior features have a sober elegance in keeping with the function of the building. The construction is completed by a large parking space and gardens. OEl rasgo más sobresaliente de esta construcción son las columnatas de las fachadas principales, formadas por grandes elementos prefabricados de hormigón que cubren las cuatro plantas de altura del edificio. En la fachada sur, el peristilo se completa con largos partesoles verticales, también prefabricados, que protegen de la luz solar directa. En la parte superior el edificio culmina en un amplio voladizo apoyado sobre las grandes columnas. En el interior de las cuatro plantas se han distribuido: salas para los tribunales; dependencias destinadas a los jueces y jurados; locales para el fiscal, el abogado y el jefe de policía; salas para periodistas; salas de espera para los testigos, e instalaciones para los acusados. La organización general es tal que las salas de las audiencias separan la zona pública de la privada, quedando, al mismo tiempo, enlazadas con las salas de los jueces y de los jurados correspondientes. En la decoración interior se buscó un acabado sobrio y noble, de acuerdo con la función del edificio. La construcción se completa con un extenso aparcamiento y grandes zonas ajardinadas.

  2. A Partial Index to the Mission San Gabriel Baptism, Marriage, and Death Registers,

    Science.gov (United States)

    1982-01-01

    de agua por todas lados, parece que en la lengua llaman a esta Rancherfa los Yndios, -2- Gui-chi, y para que mejor se conoscf le puse por nombre a...34-" for a baptism performed in casu necessitatis or in articulo mortis, i.e., in an emergency or at death) is shown in column six. Columns seven and eight

  3. Järelmõtteid ühe doktoritöö kaitsmisele / Gabriel Hazak

    Index Scriptorium Estoniae

    Hazak, Gabriel, 1938-

    2012-01-01

    TTÜ majandusteaduskonnas kaitses oma doktoritööd poliitik Mart Nutt. Töö teemaks „Eesti parlamendi pädevuse kujunemine ja rakendamine välissuhtlemises“. Oponent Gabriel Hazaku mõtteid kaitsmiselt

  4. Järelmõtteid ühe doktoritöö kaitsmisele / Gabriel Hazak

    Index Scriptorium Estoniae

    Hazak, Gabriel, 1938-

    2012-01-01

    TTÜ majandusteaduskonnas kaitses oma doktoritööd poliitik Mart Nutt. Töö teemaks „Eesti parlamendi pädevuse kujunemine ja rakendamine välissuhtlemises“. Oponent Gabriel Hazaku mõtteid kaitsmiselt

  5. Diurnal variability in riverine dissolved organic matter composition determined by in situ optical measurement in the San Joaquin River (California, USA)

    Science.gov (United States)

    Spencer, R.G.M.; Pellerin, B.A.; Bergamaschi, B.A.; Downing, B.D.; Kraus, T.E.C.; Smart, D.R.; Dahlgren, R.A.; Hernes, P.J.

    2007-01-01

    Dissolved organic matter (DOM) concentration and composition in riverine and stream systems are known to vary with hydrological and productivity cycles over the annual and interannual time scales. Rivers are commonly perceived as homogeneous with respect to DOM concentration and composition, particularly under steady flow conditions over short time periods. However, few studies have evaluated the impact of short term variability (<1 day) on DOM dynamics. This study examined whether diurnal processes measurably altered DOM concentration and composition in the hypereutrophic San Joaquin River (California) during a relatively quiescent period. We evaluated the efficacy of using optical in situ measurements to reveal changes in DOM which may not be evident from bulk dissolved organic carbon (DOC) measurement alone. The in situ optical measurements described in this study clearly showed for the first time diurnal variations in DOM measurements, which have previously been related to both composition and concentration, even though diurnal changes were not well reflected in bulk DOC concentrations. An apparent asynchronous trend of DOM absorbance and chlorophyll-a in comparison to chromophoric dissolved organic matter (CDOM) fluorescence and spectral slope S290-350 suggests that no one specific CDOM spectrophotometric measurement explains absolutely DOM diurnal variation in this system; the measurement of multiple optical parameters is therefore recommended. The observed diurnal changes in DOM composition, measured by in situ optical instrumentation likely reflect both photochemical and biologically-mediated processes. The results of this study highlight that short-term variability in DOM composition may complicate trends for studies aiming to distinguish different DOM sources in riverine systems and emphasizes the importance of sampling specific study sites to be compared at the same time of day. The utilization of in situ optical technology allows short-term variability

  6. Use of dissolved inorganic carbon isotopes to track photosynthesis, respiration, and nitrification along a 56 mile transect in the Sacramento River and San Francisco Bay

    Science.gov (United States)

    Silva, S. R.; Kendall, C.; Peek, S.; Young, M. B.

    2013-12-01

    A decline in phytoplankton stocks in the San Francisco Bay and Delta is thought to contribute to the pelagic organism decline observed over the past two decades. One factor controlling phytoplankton growth rate is the availability of nutrients. Although there is an excess of nutrients in the Bay and Delta, the type and relative abundance of nutrients is critical to phytoplankton growth. To evaluate the response of phytoplankton to nutrient sources and to better understand phytoplankton dynamics downstream, we tested the hypothesis that the δ13C values of dissolved inorganic carbon (DIC) along with conventional water chemistry analyses will record events such as increased nitrification (related to the Sacramento River Wastewater Treatment Plant ammonium input) and algal blooms, and reflect the balance between photosynthesis and bacterial respiration. Multiple parameters affect [DIC] and its δ13C, including DIC sources, pH, and biological processes. Consumption of CO2 by phytoplankton during photosynthesis and by autotrophic bacteria during nitrification both result in increases in δ13C-DIC. However, photosynthesis and nitrification have very different relationships to chlorophyll and nutrient concentrations. The balance between heterotrophic bacterial respiration and photosynthesis should be reflected in trends in DIC, nutrient, and chlorophyll concentration, and δ13C-DIC. The δ13C of DIC should also be reflected in the δ13C of phytoplankton with approximately a 20 per mil fractionation. Significant deviation in the fractionation factor may indicate local variations in growth rate, nutrient availability, or speciation. Combined, these parameters should provide a gauge of the relative importance of the above mentioned processes. To test this hypothesis, we collected 19 water samples per cruise between July 2012 and July 2013 along a 56 mile transect between Rio Vista on the Sacramento River and San Francisco Bay near Angel Island during 8 cruises on the USGS RV

  7. Heavy metals in waters and suspended sediments affected by a mine tailing spill in the upper San Lorenzo River, Northwestern México.

    Science.gov (United States)

    Páez-Osuna, F; Bojórquez-Leyva, H; Bergés-Tiznado, M; Rubio-Hernández, O A; Fierro-Sañudo, J F; Ramírez-Rochín, J; León-Cañedo, J A

    2015-05-01

    Concentrations of arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), mercury (Hg), silver (Ag) and zinc (Zn) were evaluated in water and suspended sediments of the upper waters of San Lorenzo River in NW Mexico following a mine tailing spill. Except As (6.64-35.9 µg L(-1)), dissolved metal concentrations were low (Ag <0.06-0.22; Cd 0.01-0.34; Cu 4.71-10.2; Hg 0.02-0.24; Pb <0.15-0.65; Zn 86-1,080 µg L(-1)) and were less than the upper limits established by UNEP (Water quality for ecosystem and human health, 2nd edn. United Nations Environment Programme Global Environment Monitoring System/Water Programme, Burlington, 2008), EPA (2014) and the Mexican regulation (NOM 1994). In contrast, the suspended metal concentrations were high (As 91.4-130; Ag 22.1-531; Cd 3.14-6.30; Cu 65-123; Hg 0.47-1.09; Pb 260-818; Zn 742-1,810 mg kg(-1)) and most of samples exceeded the probable effect level of the Canadian Sediment Quality Guidelines for the Protection of Aquatic Life.

  8. APPLICATION OF DIATOMS TO ASSESS THE QUALITY OF THE WATERS OF THE BARYCZKA STREAM, LEFT-SIDE TRIBUTARY OF THE RIVER SAN

    Directory of Open Access Journals (Sweden)

    Teresa Noga

    2013-07-01

    Full Text Available The Baryczka stream is a small (about 20 km long, left bank tributary of the River San (Podkarpackie Voivodeship. Studies on diversity of diatom communities using OMNIDIA software were conducted in 2010 and 2011. Diatomaceous indices IPS, GDI and TDI and Van Dam et al. classification system were used for water quality assessment. Planothidium lanceolatum, Cocconeis placentula var. lineata, Achnanthidium minutissimum var. minutissimum, Nitzschia linearis, Rhoicosphenia abbreviata, Navicula lanceolata and Naicula gregaria were the most numerous. Values of the IPS index indicate good water quality (II–III class. Based on the GDI index, waters of the Baryczka stream were classified to III class water quality. The TDI index indicated poor and bad ecological state on the most sampling sites. On all sampling sites alaliphilous (pH>7 diatoms taxa predominated. The most common were eutraphentic and hypereutraphentic diatoms. With respect to trophy, it was shown that α- and β-mesosaprobous diatoms were the most common (III and II class water quality.

  9. Comparing Multiple Evapotranspiration-calculating Methods, Including Eddy Covariance and Surface Renewal, Using Empirical Measurements from Alfalfa Fields in the Sacramento-San Joaquin River Delta

    Science.gov (United States)

    Clay, J.; Kent, E. R.; Leinfelder-Miles, M.; Lambert, J. J.; Little, C.; Paw U, K. T.; Snyder, R. L.

    2016-12-01

    Eddy covariance and surface renewal measurements were used to estimate evapotranspiration (ET) over a variety of crop fields in the Sacramento-San Joaquin River Delta during the 2016 growing season. However, comparing and evaluating multiple measurement systems and methods for determining ET was focused upon at a single alfalfa site. The eddy covariance systems included two systems for direct measurement of latent heat flux: one using a separate sonic anemometer and an open path infrared gas analyzer and another using a combined system (Campbell Scientific IRGASON). For these methods, eddy covariance was used with measurements from the Campbell Scientific CSAT3, the LI-COR 7500a, the Campbell Scientific IRGASON, and an additional R.M. Young sonic anemometer. In addition to those direct measures, the surface renewal approach included several energy balance residual methods in which net radiation, ground heat flux, and sensible heat flux (H) were measured. H was measured using several systems and different methods, including using multiple fast-response thermocouple measurements and using the temperatures measured by the sonic anemometers. The energy available for ET was then calculated as the residual of the surface energy balance equation. Differences in ET values were analyzed between the eddy covariance and surface renewal methods, using the IRGASON-derived values of ET as the standard for accuracy.

  10. Streamflow and water-quality properties in the West Fork San Jacinto River Basin and regression models to estimate real-time suspended-sediment and total suspended-solids concentrations and loads in the West Fork San Jacinto River in the vicinity of Conroe, Texas, July 2008-August 2009

    Science.gov (United States)

    Bodkin, Lee J.; Oden, Jeannette H.

    2010-01-01

    To better understand the hydrology (streamflow and water quality) of the West Fork San Jacinto River Basin downstream from Lake Conroe near Conroe, Texas, including spatial and temporal variation in suspended-sediment (SS) and total suspended-solids (TSS) concentrations and loads, the U.S. Geological Survey, in cooperation with the Houston-Galveston Area Council and the Texas Commission on Environmental Quality, measured streamflow and collected continuous and discrete water-quality data during July 2008-August 2009 in the West Fork San Jacinto River Basin downstream from Lake Conroe. During July 2008-August 2009, discrete samples were collected and streamflow measurements were made over the range of flow conditions at two streamflow-gaging stations on the West Fork San Jacinto River: West Fork San Jacinto River below Lake Conroe near Conroe, Texas (station 08067650) and West Fork San Jacinto River near Conroe, Texas (station 08068000). In addition to samples collected at these two main monitoring sites, discrete sediment samples were also collected at five additional monitoring sites to help characterize water quality in the West Fork San Jacinto River Basin. Discrete samples were collected semimonthly, regardless of flow conditions, and during periods of high flow resulting from storms or releases from Lake Conroe. Because the period of data collection was relatively short (14 months) and low flow was prevalent during much of the study, relatively few samples collected were representative of the middle and upper ranges of historical daily mean streamflows. The largest streamflows tended to occur in response to large rainfall events and generally were associated with the largest SS and TSS concentrations. The maximum SS and TSS concentrations at station 08067650 (180 and 133 milligrams per liter [mg/L], respectively) were on April 19, 2009, when the instantaneous streamflow was the third largest associated with a discrete sample at the station. SS concentrations

  11. Using High Resolution Satellite Precipitation fields to Assess the Impacts of Climate Change on the Santa Cruz and San Pedro River Basins

    Science.gov (United States)

    Robles-Morua, A.; Vivoni, E.; Rivera-Fernandez, E. R.; Dominguez, F.; Meixner, T.

    2013-05-01

    Hydrologic modeling using high spatiotemporal resolution satellite precipitation products in the southwestern United States and northwest Mexico is important given the sparse nature of available rain gauges. In addition, the bimodal distribution of annual precipitation also presents a challenge as differential climate impacts during the winter and summer seasons are not currently well understood. In this work, we focus on hydrological comparisons using rainfall forcing from a satellite-based product, downscaled GCM precipitation estimates and available ground observations. The simulations are being conducted in the Santa Cruz and San Pedro river basins along the Arizona-Sonora border at high spatiotemporal resolutions (~100 m and ~1 hour). We use a distributed hydrologic model, known as the TIN-based Real-time Integrated Basin Simulator (tRIBS), to generate simulated hydrological fields under historical (1991-2000) and climate change (2031-2040) scenarios obtained from an application of the Weather Research and Forecast (WRF) model. Using the distributed model, we transform the meteorological scenarios at 10-km, hourly resolution into predictions of the annual water budget, seasonal land surface fluxes and individual hydrographs of flood and recharge events. We compare the model outputs and rainfall fields of the WRF products against the forcing from the North American Land Data Assimilation System (NLDAS) and available ground observations from the National Climatic Data Center (NCDC) and Arizona Meteorological Network (AZMET). For this contribution, we selected two full years in the historical period and in the future scenario that represent wet and dry conditions for each decade. Given the size of the two basins, we rely on a high performance computing platform and a parallel domain discretization with higher resolutions maintained at experimental catchments in each river basin. Model simulations utilize best-available data across the Arizona-Sonora border on

  12. Geochemical characterization in karst basin tributaries of the San Franciscan depression: The Corrente River, western Bahia, NE-Brazil

    Science.gov (United States)

    Lecomte, Karina L.; Bicalho, Cristina C.; Silva-Filho, Emmanoel V.

    2016-08-01

    Karst aquifers are important freshwater resources for the growing population in Brazil. The sandstones of Urucuia plateau and the limestone of Bambui Group constitute important aquifer systems in the western part of Bahia state. The Corrente River provides ∼30% of the total water flow of the São Francisco River and crosses karstified structures. Surface and groundwater samples were collected during the dry period, the beginning of the wet season, and the wet season. The main objective was to define sources and distribution of dissolved elements and to describe the geochemical processes that govern their mobility within the system. Water samples are classified into three groups, depending on the dominant weathering process. When carbonate dissolution governs, waters are bicarbonate-calcium-type; whereas when the atmospheric precipitation signal is present, the samples in siliciclastic terrain are more Cl- - Na+. Groundwaters reflect bicarbonate-mixed-type, with the highest dissolved concentrations. In contrast to the major elements, trace elements, including Rare Earth Elements (REE), show seasonal behavior: their concentrations increase with the beginning of the wet season, due to re-mobilization and release into the solution of adsorbed elements from the system and the atmospheric dust. The total dissolved REE concentration (800-7500 ng L-1) is one order of magnitude more concentrated in karsts than in siliciclastic rocks. Principal component analysis was performed, explaining >77% of the variance. First factor extracted (REE, Y, Th, Al, Fe) explain the washout and enhancement of atmospheric dust weathering throughout the beginning of the wet seasons. The second component comprises variables related to karsts lithology, representing calcite and dolomite dissolution.

  13. GABRIEL GÜEMES MONTERO: FUNCIONARIO ILUSTRADO Y VECINO RESPETABLE

    Directory of Open Access Journals (Sweden)

    B\\u00E1rbara M. Aramendi

    2008-01-01

    Full Text Available En el Antiguo Régimen más que con instituciones se gobernaba con hombres y las redes de relaciones eran un elemento fundamental de capital social y capacidad de acción que las personas podían movilizar en su favor. En el presente trabajo se pretende reflexionar sobre el funcionamiento administrativo del imperio español a través del análisis de un funcionario en particular: Gabriel Güemes Montero, enviado por la corona para servir como tesorero en las cajas principales de la Real Hacienda de la Gobernación del Tucumán. La elección de Güemes, como excusa para analizar un contexto más amplio, estuvo dada por la existencia de una amplia información y conocimiento sobre su figura en la sociedad salteña por ser el padre de Martín Miguel de Güemes. La historiografía tradicional ha ensalzado y enaltecido su figura creando la imagen del hombre extraordinario, profesional e incorruptible que permanece hasta nuestros días pero nuestra intención aquí es otra: definir la trayectoria de un burócrata peninsular y reconstruir las redes de las cuales formó parte lo cual nos permitirá visualizar la organización administrativa desde el punto de vista de las relaciones interpersonales y analizar su rol de intermediario entre los intereses de la corona y los de la sociedad local.

  14. Discriminating between west-side sources of nutrients and organiccarbon contributing to algal growth and oxygen demand in the San JoaquinRiver

    Energy Technology Data Exchange (ETDEWEB)

    Wstringfellow@lbl.gov

    2002-07-24

    The purpose of this study was to investigate the Salt and Mud Slough tributaries as sources of oxygen demanding materials entering the San Joaquin River (SJR). Mud Slough and Salt Slough are the main drainage arteries of the Grasslands Watershed, a 370,000-acre area west of the SJR, covering portions of Merced and Fresno Counties. Although these tributaries of the SJR are typically classified as agricultural, they are also heavily influenced by Federal, State and private wetlands. The majority of the surface water used for both irrigation and wetland management in the Grassland Watershed is imported from the Sacramento-San Joaquin Delta through the Delta-Mendota Canal. In this study, they measured algal biomass (as chlorophyll a), organic carbon, ammonia, biochemical oxygen demand (BOD), and other measures of water quality in drainage from both agricultural and wetland sources at key points in the Salt Slough and Mud Slough tributaries. This report includes the data collected between June 16th and October 4th, 2001. The objective of the study was to compare agricultural and wetland drainage in the Grasslands Watershed and to determine the relative importance of each return flow source to the concentration and mass loading of oxygen demanding materials entering the SJR. Additionally, they compared the quality of water exiting our study area to water entering our study area. This study has demonstrated that Salt and Mud Sloughs both contribute significant amounts of oxygen demand to the SJR. Together, these tributaries could account for 35% of the oxygen demand observed below their confluence with the SJR. This study has characterized the sources of oxygen demanding materials entering Mud Slough and evaluated the oxygen demand conditions in Salt Slough. Salt Slough was found to be the dominant source of oxygen demand load in the study area, because of the higher flows in this tributary. The origins of oxygen demand in Salt Slough still remain largely uninvestigated

  15. El deslizamiento de rocas y detritos sobre elrío Santa Cruz y el aluvión resultante por el colapso del dique natural, AndesCentrales de San Juan Rock-debris landslide on Santa Cruz river andresulting flash flood by collapse of the natural dam, Central Andes of SanJuan

    Directory of Open Access Journals (Sweden)

    Laura Perucca

    2009-11-01

    Full Text Available Durante el verano de 2005 un gran deslizamiento derocas y detritos ubicado en la ladera occidental de la Cordillera de Santa Cruzobturó el valle del río Santa Cruz, en el sudeste de la provincia de San Juan(31º40'12''S; 70º16'18''O. Este deslizamiento originó una presa natural en laquebrada del río y formó un lago de volumen considerable. El 12 de noviembre de2005, probablemente por la enorme presión generada por la masa de agua contrala presa, se produjo el colapso parcial del dique natural, originándose uninesperado aluvión que provocó numerosas pérdidas económicas en las principaleslocalidades del departamento Calingasta y daños considerables en uno de losproyectos más relevantes de la provincia de San Juan, el dique Caracoles sobreel río San Juan. Debido a los costos elevados que implicaría la toma de medidasde mitigación en esta zona montañosa alejada y casi inaccesible, lasprincipales medidas que se pueden tomar se refieren a sistemas de alertatemprana de aluviones agua abajo, el monitoreo hidrológico en la presa y un seguimientosatelital anual para conocer la evolución del deslizamiento.During summer of 2005, a large debris-rockslide occluded the Santa Cruz river valley, from the west slope of theCordillera de Santa Cruz in southeast of San Juan province (S31º40'12'';W70º16'18''. The landslide originated a natural dam in Santa Cruz river andformed a lake of considerable volume. The 12th of November of 2005, probably byeffect of the pressure generated by the same mass of water against the dam, thepartial collapse of this natural dam took place, causing a violent andunexpected flash flood and generating several economic losses in the mainlocalities of Calingasta department and considerable damages in one of the mostrelevant projects of the San Juan province, Caracoles dam, developed in the SanJuan river. Because of the high costs of taking physical remediation measuresto the natural dam in this very farest and almost

  16. Cultural Resource Test Sampling Program for a Proposed Flood Control Project in the Lower San Luis Rey River Drainage, Oceanside, California.

    Science.gov (United States)

    1979-10-01

    can be suggested for the San Luis Rey area. Kroeber (1925:Plate 57) recorded four villages in the vicinity of Mission San Luis Rey: Keish (at San Luis...collector. Edwards Brother’s Inc., Ann Arbor, Michigan. Kroeber , Alfred 1970 Handbook of the Indians of California. California Book Company, Berkeley. Lowe...Idnship patterm, created rock art, and carried on extensive trade with the surrounding cultuiral areas (Rogers 1945:167-198; Kroeber 1970:709-725; Strong

  17. Using remote sensing to monitor past changes and assess future scenarios for the Sacramento-San Joaquin River Delta waterways, California USA

    Science.gov (United States)

    Santos, Maria J.; Hestir, Erin; Khanna, Shruti; Ustin, Susan L.

    2017-04-01

    Historically, deltas have been extensively affected both by natural processes and human intervention. Thus, understanding drivers, predicting impacts and optimizing solutions to delta problems requires a holistic approach spanning many sectors, disciplines and fields of expertise. Deltas are ideal model systems to understand the effects of the interaction between social and ecological domains, as they face unprecedented disturbances and threats to their biological and ecological sustainability. The challenge for deltas is to meet the goals of supporting biodiversity and ecosystem processes while also provisioning fresh water resources for human use. We provide an overview of the last 150 years of the Sacramento-San Joaquin River delta, where we illustrate the parallel process of an increase in disturbances, by particularly zooming in on the current cascading effects of invasive species on geophysical and biological processes. Using remote sensing data coupled with in situ measurements of water quality, turbidity, and species presence we show how the spread and persistence of aquatic invasive species affects sedimentation processes and ecosystem functioning. Our results show that the interactions between the biological and physical conditions in the Delta affect the trajectory of dominance by native and invasive aquatic plant species. Trends in growth and community characteristics associated with predicted impacts of climate change (sea level rise, warmer temperatures, changes in the hydrograph with high winter and low summer outflows) do not provide simple predictions. Individually, the impact of specific environmental changes on the biological components can be predicted, however it is the complex interactions of biological communities with the suite of physical changes that make predictions uncertain. Systematic monitoring is critical to provide the data needed to document and understand change of these delta systems, and to identify successful adaptation

  18. On Gabriel Conroy’s Epiphany from Perspective of Possible Worlds

    Institute of Scientific and Technical Information of China (English)

    邵永霞

    2015-01-01

    The Dead,the last and longest story in Dubliners summarizes the theme of Dubliners’ paralysis,focuses on Gabriel Conroy on the night of the Morkan sisters’ annual dance and dinner,and develops toward a moment of painful selfawareness which James Joyce described as an epiphany.The paper reveals how the protagnist Gabriel Conroy’s knowledge world, wish world and obligation world are respectively contradicted with his society and explores his awakening or epiphany so as to find out the creation of the text.

  19. Jerome McGann: Dante Gabriel Rossetti, Collected Poetry and Prose

    OpenAIRE

    Yann THOLONIAT

    2013-01-01

    Jerome J. McGann is well-known as one of the leading theorists of New Historicism, as a scholar of the Romantic period in general and of the work of Lord Byron in particular. Nevertheless, this collected edition of the poetry and prose of Dante Gabriel Rossetti should not come as a surprise, since Jerome McGann has also published on the painter-poet extensively, his latest book of criticism on the subject being Dante Gabriel Rossetti and the Game that Must Be Lost (Yale University Press, New ...

  20. Jerome McGann: Dante Gabriel Rossetti, Collected Poetry and Prose

    Directory of Open Access Journals (Sweden)

    Yann THOLONIAT

    2004-10-01

    Full Text Available Jerome J. McGann is well-known as one of the leading theorists of New Historicism, as a scholar of the Romantic period in general and of the work of Lord Byron in particular. Nevertheless, this collected edition of the poetry and prose of Dante Gabriel Rossetti should not come as a surprise, since Jerome McGann has also published on the painter-poet extensively, his latest book of criticism on the subject being Dante Gabriel Rossetti and the Game that Must Be Lost (Yale University Press, New ...

  1. Gabriel Tarde, critique du militarisme « scientifique »

    OpenAIRE

    Autin, Gauthier

    2011-01-01

    Gabriel Tarde (1843-1904) analyse le lien étroit qui associe les idéologies de son temps (darwinisme social, lutte des classes et des races) à la politique belliciste des États. À cette alliance néfaste, il oppose le mouvement pacificateur du droit international qui oscille entre la constitution d’une fédération mondiale et l’avènement d’un Empire. Le discours militariste ne peut être réfuté que par l’émergence d’une nouvelle unité politique globale.    Gabriel Tarde (1843-1904) analyzes t...

  2. San Francisco District Laboratory (SAN)

    Data.gov (United States)

    Federal Laboratory Consortium — Program Capabilities Food Analysis SAN-DO Laboratory has an expert in elemental analysis who frequently performs field inspections of materials. A recently acquired...

  3. Geophysical evidence for wedging in the San Gorgonio Pass structural knot, southern San Andreas fault zone, southern California

    Science.gov (United States)

    Langenheim, V.E.; Jachens, R.C.; Matti, J.C.; Hauksson, E.; Morton, D.M.; Christensen, A.

    2005-01-01

    Geophysical data and surface geology define intertonguing thrust wedges that form the upper crust in the San Gorgonio Pass region. This picture serves as the basis for inferring past fault movements within the San Andreas system, which are fundamental to understanding the tectonic evolution of the San Gorgonio Pass region. Interpretation of gravity data indicates that sedimentary rocks have been thrust at least 5 km in the central part of San Gorgonio Pass beneath basement rocks of the southeast San Bernardino Mountains. Subtle, long-wavelength magnetic anomalies indicate that a magnetic body extends in the subsurface north of San Gorgonio Pass and south under Peninsular Ranges basement, and has a southern edge that is roughly parallel to, but 5-6 km south of, the surface trace of the Banning fault. This deep magnetic body is composed either of upper-plate rocks of San Gabriel Mountains basement or rocks of San Bernardino Mountains basement or both. We suggest that transpression across the San Gorgonio Pass region drove a wedge of Peninsular Ranges basement and its overlying sedimentary cover northward into the San Bernardino Mountains during the Neogene, offsetting the Banning fault at shallow depth. Average rates of convergence implied by this offset are broadly consistent with estimates of convergence from other geologic and geodetic data. Seismicity suggests a deeper detachment surface beneath the deep magnetic body. This interpretation suggests that the fault mapped at the surface evolved not only in map but also in cross-sectional view. Given the multilayered nature of deformation, it is unlikely that the San Andreas fault will rupture cleanly through the complex structures in San Gorgonio Pass. ?? 2005 Geological Society of America.

  4. The Bossoroca Complex, São Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil: Usbnd Pb geochronology and tectonic implications for the neoproterozoic São Gabriel Arc

    Science.gov (United States)

    Gubert, Mauricio Lemos; Philipp, Ruy Paulo; Stipp Basei, Miguel Angelo

    2016-10-01

    Usbnd Pb LA-ICPMS geochronological analyses were carried out on zircon grains from metavolcanic rocks of the Bossoroca Complex and for one ash tuff of the Acampamento Velho Formation of the Camaquã Basin, in order to understand the evolution of the Neoproterozoic São Gabriel magmatic arc. A total of 42 analyses of igneous zircon grains were performed in three samples. The results yielded Usbnd Pb ages of 767.2 ± 2.9 Ma for the metavolcanic agglomerate (BOS-02); 765 ± 10 Ma for the metacrystal tuff (BOS-03) and 565.8 ± 4.8 Ma for the ash tuff (BOS-04). The Orogenic Cycle in Brazil is characterized by a set of orogenic belts consisting of petrotectonic associations juxtaposed by two collisional events that occurred at the end of the Neoproterozoic. In southern Brazil this orogeny formed the Dom Feliciano Belt, a unit composed of associations of rocks developed during two major orogenic events called São Gabriel (900-680 Ma) and Dom Feliciano (650-540 Ma). The main São Gabriel associations are tectonically juxtaposed as elongated strips according to the N20-30°E direction, bounded by ductile shear zones. The Bossoroca Complex comprises predominantly metavolcano-sedimentary rocks, characterized by medium-K calc-alkaline association generated in a cordillera-type magmatic arc. The volcanism occurred in sub-aerial environment, developing deposits generated by flow, resurgence and fall, sporadically interrupted by subaqueous epiclastic deposits, suggesting an arc related basin. The São Gabriel Terrane contains the petrotectonic units that represent the closure of the Charrua Ocean associated to the subduction period of the Brasiliano Orogenic Cycle in the Sul-rio-grandense Shield.

  5. Cronología de Gabriel García Márquez

    Directory of Open Access Journals (Sweden)

    Andrés Arias

    2014-03-01

    Full Text Available En el documento que se expone a continuación, se presenta la cronología histórica del escritor colombiano Gabriel García Márquez, desde su nacimiento, en 1927, y los hitos relacionados a su vida y obra hasta la actualidad (2014.

  6. The Necessity of the Literary Tradition: Gabriel Garcia Marquez's "One-Hundred Years of Solitude."

    Science.gov (United States)

    Jupp, James C.

    2000-01-01

    Argues that literature from other countries, taught as multicultural literature, must be taught in the context of its own literary tradition in order to provide high-quality academic instruction. Offers an example with Gabriel Garcia Marquez's "One-Hundred Years of Solitude" to show how teaching multicultural literature can live up to…

  7. The Necessity of the Literary Tradition: Gabriel Garcia Marquez's "One-Hundred Years of Solitude."

    Science.gov (United States)

    Jupp, James C.

    2000-01-01

    Argues that literature from other countries, taught as multicultural literature, must be taught in the context of its own literary tradition in order to provide high-quality academic instruction. Offers an example with Gabriel Garcia Marquez's "One-Hundred Years of Solitude" to show how teaching multicultural literature can live up to its…

  8. [The pendulum and the mortar. Some pharmacist deviners and particularly Gabriel Lesourd].

    Science.gov (United States)

    Lefebvre, Thierry

    2004-01-01

    At the beginning of the 1930s, many French doctors and pharmacists practised dowsing. Some adhered to the 'Association des amis de la radiesthésie'. It was in particular the case of Gabriel Lesourd (1890-1976), owner of the famous "Tisane du Curé de Deuil".

  9. Canonizing Latin American Literature: Gabriel Garcia Marquez and Mario Vargas Llosa Enter the English Curriculum.

    Science.gov (United States)

    Cellini, Alva V.

    As Latin American literature progressively enters into the English curriculum, two writers deserve special commentary for their representative contribution to the literary world. Through their works, the Columbian author, Gabriel Garcia Marquez, and the Peruvian author, Mario Vargas Llosa clearly convey the Latin American writer's desire to be…

  10. Tres mitos griegos en la narrativa de Gabriel García Márquez

    OpenAIRE

    David GARCÍA PÉREZ

    2010-01-01

    Este trabajo expone la recepción de los mitos de Antígona, Ulises y Prometeo en la narrativa del escritor colombiano Gabriel García Márquez. Se analiza la re-creación de los mitos indicados en el contexto peculiar del Realismo mágico.

  11. The Necessity of the Literary Tradition: Gabriel Garcia Marquez's "One-Hundred Years of Solitude."

    Science.gov (United States)

    Jupp, James C.

    2000-01-01

    Argues that literature from other countries, taught as multicultural literature, must be taught in the context of its own literary tradition in order to provide high-quality academic instruction. Offers an example with Gabriel Garcia Marquez's "One-Hundred Years of Solitude" to show how teaching multicultural literature can live up to…

  12. Preliminary geologic map and digital database of the San Bernardino 30' x 60' quadrangle, California

    Science.gov (United States)

    Morton, Douglas M.; Miller, Fred K.

    2003-01-01

    The San Bernardino 30'x60' quadrangle, southern California, is diagonally bisected by the San Andreas Fault Zone, separating the San Gabriel and San Bernardino Mountains, major elements of California's east-oriented Transverse Ranges Province. Included in the southern part of the quadrangle is the northern part of the Peninsular Ranges Province and the northeastern part of the oil-producing Los Angeles basin. The northern part of the quadrangle includes the southern part of the Mojave Desert Province. Pre-Quaternary rocks within the San Bernardino quadrangle consist of three extensive, well-defined basement rock assemblages, the San Gabriel Mountains, San Bernardino Mountains, and the Peninsular Ranges assemblages, and a fourth assemblage restricted to a narrow block bounded by the active San Andreas Fault and the Mill Creek Fault. Each of these basement rock assemblages is characterized by a relatively unique suite of rocks that was amalgamated by the end of the Cretaceous and (or) early Cenozoic. Some Tertiary sedimentary and volcanic rocks are unique to specific assemblages, and some overlap adjacent assemblages. A few Miocene and Pliocene units cross the boundaries of adjacent assemblages, but are dominant in only one. Tectonic events directly and indirectly related to the San Andreas Fault system have partly dismembered the basement rocks during the Neogene, forming the modern-day physiographic provinces. Rocks of the four basement rock assemblages are divisible into an older suite of Late Cretaceous and older rocks and a younger suite of post-Late Cretaceous rocks. The age span of the older suite varies considerably from assemblage to assemblage, and the point in time that separates the two suites varies slightly. In the Peninsular Ranges, the older rocks were formed from the Paleozoic to the end of Late Cretaceous plutonism, and in the Transverse Ranges over a longer period of time extending from the Proterozoic to metamorphism at the end of the Cretaceous

  13. Long-term historical analysis of benthic communities and physical habitat in an agricultural stream in California's San Joaquin River watershed.

    Science.gov (United States)

    Hall, Lenwood W; Killen, William D; Alden, Raymond

    2009-05-01

    This study was designed to characterize long-term annual temporal and spatial trends (2001 to 2007) in physical habitat and benthic communities and to determine relationships of habitat and benthic communities during this 7-year period in an agricultural stream in the San Joaquin River watershed in California (Del Puerto Creek). The canonical discriminant analysis indicated that there were no overall significant temporal patterns for the habitat metrics although spatial patterns were prominent for nearly all the habitat metrics. Channel alteration, riparian vegetative zone, bank stability, vegetative protection and frequency of riffles/bends were the primary habitat metrics associated with these site effects. Approximately 3,700 to 4,500 individual macroinvertebrates were picked and identified from five Del Puerto Creek sites sampled annually from 2001 to 2007. The total number of taxa by year ranged from 81 in 2003 to 106 in 2007. These benthic assemblages were generally comprised of tolerant to moderately tolerant taxa such as blackflies, oligochaetes, snails and chironomids. The metrics % predators, % EPT index, % collectors/filterers and % shredders were the benthic metrics that were most associated with the temporal effects. Ephemeroptera taxa, trichoptera taxa, and % sensitive EPT index were the benthic metrics that were most associated with the site effects. The most upstream site in Del Puerto Creek had the most robust and healthy benthic communites. Strong statistical relationships were reported between certain benthic metrics and habitat metrics. Overall, samples taken from site-year combinations with sediments that were qualitatively less muddy (less fines) and that had higher habitat metric scores for embeddedness, riparian vegetative zone, and channel alteration tended to have benthic communities characterized by higher values of the benthic metrics such as EPT taxa, Ephemeroptera taxa, EPT index, abundance, and taxonomic richness, among others

  14. Angelberga: il monastero di San Sisto di Piacenza e il corso del fiume Po Angelberga: the monastery of St. Sisto of Piacenza and the course of Po river

    Directory of Open Access Journals (Sweden)

    Roberta Cimino

    2012-10-01

    Full Text Available Il contributo analizza il dotario of Angelberga (ca. 831-891, moglie dell’imperatore Ludovico II. Angelberga rivestì un importante ruolo politico sia durante il suo matrimonio, sia dopo la morte del marito, e riuscì inoltre a costruire un impressionante patrimonio. Angelberga acquisì infatti un grande numero di beni fondiari, in parte tramite donazioni del consorte e in parte grazie ad acquisizioni personali. Nell’877 l’imperatrice assegnò il suo patrimonio al monastero di San Sisto, da lei fondato a Piacenza. Il contributo esamina in dettaglio l’ubicazione dei beni di Angelberga, dimostrando che gran parte di tali beni era situata in prossimità del corso del fiume Po: tale collocazione consentiva il controllo delle principali vie di comunicazione del regno d’Italia. Inoltre le proprietà di Angelberga si trovavano per lo più in aree controllate dai Supponidi, la potente famiglia di origine dell’imperatrice. Il saggio conclude che la costruzione del patrimonio di Angelberga, e del monastero che ne derivò, dimostra una convergenza di interessi economici e politici tra il potere regio e le aristocrazie locali rappresentate dalla potente famiglia d’origine dell’imperatrice.

    This study analyzes the dower of Angelberga (ca. 831-891, wife of emperor Louis II. Angelberga played a significant political role during her marriage and after her husband’s death; moreover she accumulated an impressive patrimony. Angelberga gathered a great number of landed properties, partly through donations from her husband and partly thanks to personal acquisitions. In 877 the empress left her wealth to the monastery of St. Sisto, which she had founded in Piacenza. This article offers a detailed analysis of the location of Angelberga’s properties, showing that most of these properties were situated in the proximity of the Po river: this location allowed for the control of the main communication routes of the Italic Kingdom. Moreover

  15. San Juan River, 1962, Overview

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — The aerial photography inventory contains aerial photographs that are retrievable on a frame by frame basis. The inventory contains imagery from various sources...

  16. San Francisco District Laboratory (SAN)

    Data.gov (United States)

    Federal Laboratory Consortium — Program CapabilitiesFood Analysis SAN-DO Laboratory has an expert in elemental analysis who frequently performs field inspections of materials. A recently acquired...

  17. Wind power system for Sao Gabriel, Irece region, Bahia-Brazil; Sistema eolico de Sao Gabriel, regiao de Irece-Bahia

    Energy Technology Data Exchange (ETDEWEB)

    Bruni, Carlos D' Alexandria [Centro Federal de Educacao Tecnologica da Bahia (CEFET-BA), Salvador, BA (Brazil)], e-mail: carlosbruni@cefetba.br; Camelier, Luiz Alberto A. [Companhia de Engenharia Rural da Bahia, Salvador, BA (Brazil)], e-mail: lcamelier@ig.com.br

    2004-07-01

    An electric power plant supplied by a wind-generator is the solution for supply drink water on a small community on Sao Gabriel, Irece - Bahia -Brazil. On behalf of the feasibility a wind power system is described in detail concerning it's technical specifications, it's operation, constraints and it's energy demand. Furthermore wind power system supply is described in detail. Simulations is shows how the system is designed to guarantee a reliability in pumping of drinking water powered by wind power system and it's expansion in the future. (author)

  18. Väikeste värviliste asjade ajastu = The Era of Small Colourful Things / Gabriel Verilaskja

    Index Scriptorium Estoniae

    Verilaskja, Gabriel

    2003-01-01

    Uutest suundadest valgustuses, tarkvaraga lampidest, valgustite muutumisest väiksemaks, imetillukestest valgustitest, mille sisse on ehitatud võimalus muuta värvi. Illustratsiooniks neli Gabriel Verilaskja ja Kalli Seina disainitud valgustit

  19. Väikeste värviliste asjade ajastu = The Era of Small Colourful Things / Gabriel Verilaskja

    Index Scriptorium Estoniae

    Verilaskja, Gabriel

    2003-01-01

    Uutest suundadest valgustuses, tarkvaraga lampidest, valgustite muutumisest väiksemaks, imetillukestest valgustitest, mille sisse on ehitatud võimalus muuta värvi. Illustratsiooniks neli Gabriel Verilaskja ja Kalli Seina disainitud valgustit

  20. Eesti filmitegijate edu jääb alaväärsuskompleksi taha / Gabriel Dettre ; intervjueerinud Andra Teede

    Index Scriptorium Estoniae

    Dettre, Gabriel

    2014-01-01

    Intervjuu Ungari päritolu režissööri ja produtsendi Gabriel Dettrega, kes sel hooajal õpetab filmitegemist Balti Filmi- ja Meediakoolis ja Lavakunstikoolis. Intervjuu teemadeks filmitegemine ja -õpetamine

  1. Landscape evolution due to river incision in active mountains

    Science.gov (United States)

    Lavé, L.; Attal, A.

    2003-04-01

    It is commonly accepted that fluvial network incision control the local base level for hillslopes and therefore controls the rate of landscape denudation, and thus the way the landscape will respond to tectonic or climatic forcings. For that reason, many studies have focused for the last ten years in quantifying fluvial incision rates and the mechanisms of fluvial incision into bedrock. In many morphotectonic settings the shear stress model has been widely used and provided satisfactory first order description of the river incision in active mountains. Across the Siwaliks range in front of the Himalaya, the shear stress model (that also includes bedload mean pebble size and explicit channel width variations), provides a good proxy to estimate incision and uplift rate, that can be measured independently from fluvial terraces studies. By transposition and after calibration to more resistant crystalline lithologies, this model helped to define the incision rate profiles across the whole Himalayan ranges. These profiles were found coherent with current seismotectonic model, sediment budget, fluvial terrace studies and geochronology results. More importantly, the incision model was found to provide good results in two other active regions: across the Nanga Parbat massif in Pakistan, and in the San Gabriel Ranges in California, with only minor required changes of the erodibility coefficient despite very different hydroclimatic setting. However, this semi-empirical model is not mechanically satisfying: in many settings, river bedload fluxes exert an important control on incision rates, by limiting bedrock exposure or by providing an efficient tool for river mechanical abrasion. A reappraisal of the former examples as thus conducted in order to test different models including the role of sediment fluxes. General results and models will be first discussed in light of their physical consistency with field and experimental data on pebble and bedrock abrasion, and second in

  2. Volba pseudonymu Gabriely Mistralové: Gabriele D'Annunzio, Frederic Mistral a Gabriela Mistralová

    OpenAIRE

    Štěpánková, Kristýna

    2015-01-01

    The aim of this bachelor thesis is to examine the origin of Gabriela Mistral's literary pseudonym, particularly, the probability of the pen name being chosen by her, in order to honour two european writers, an Italian writer Gabriele D'Annunzio and a French writer Frederic Mistral. This work contains general information concerning pen names, their creation and use in Europe and Latin America, also the biography of Gabriela Mistral, Gabriele D'Annunzio and Frederic Mistral, including the compa...

  3. Simulation of climate change in San Francisco Bay Basins, California: Case studies in the Russian River Valley and Santa Cruz Mountains

    Science.gov (United States)

    Flint, Lorraine E.; Flint, Alan L.

    2012-01-01

    As a result of ongoing changes in climate, hydrologic and ecologic effects are being seen across the western United States. A regional study of how climate change affects water resources and habitats in the San Francisco Bay area relied on historical climate data and future projections of climate, which were downscaled to fine spatial scales for application to a regional water-balance model. Changes in climate, potential evapotranspiration, recharge, runoff, and climatic water deficit were modeled for the Bay Area. In addition, detailed studies in the Russian River Valley and Santa Cruz Mountains, which are on the northern and southern extremes of the Bay Area, respectively, were carried out in collaboration with local water agencies. Resource managers depend on science-based projections to inform planning exercises that result in competent adaptation to ongoing and future changes in water supply and environmental conditions. Results indicated large spatial variability in climate change and the hydrologic response across the region; although there is warming under all projections, potential change in precipitation by the end of the 21st century differed according to model. Hydrologic models predicted reduced early and late wet season runoff for the end of the century for both wetter and drier future climate projections, which could result in an extended dry season. In fact, summers are projected to be longer and drier in the future than in the past regardless of precipitation trends. While water supply could be subject to increased variability (that is, reduced reliability) due to greater variability in precipitation, water demand is likely to steadily increase because of increased evapotranspiration rates and climatic water deficit during the extended summers. Extended dry season conditions and the potential for drought, combined with unprecedented increases in precipitation, could serve as additional stressors on water quality and habitat. By focusing on the

  4. Gabriel y Galán, el maestro-poeta de Castilla

    OpenAIRE

    Gómez Martín, Fernando E.

    2009-01-01

    RESUMEN: Cien años se cumplen en el presente curso de la titulación de José Ma Gabriel y Galán como «Maestro de primera enseñanza superior». Los documentos arriba transcritos son el primero y el último del expediente académico de nuestro ilustre alumno1. La efemérides podría desatar múltiples evocaciones. Alumno tan preclaro, paisano tan ligrimo, poeta tan castellano, Gabriel y Galán muestra tres vertientes en las que, sin duda alguna, alcanza grados máximos de calificación que no pueden pasa...

  5. Geochemical correlation and 40Ar/39Ar dating of the Kern River ash bed and related tephra layers: Implications for the stratigraphy of petroleum-bearing formations in the San Joaquin Valley, California

    Science.gov (United States)

    Baron, D.; Negrini, R.M.; Golob, E.M.; Miller, D.; Sarna-Wojcicki, A.; Fleck, R.J.; Hacker, B.; Erendi, A.

    2008-01-01

    The Kern River ash (KRA) bed is a prominent tephra layer separating the K and G sands in the upper part of the Kern River Formation, a major petroleum-bearing formation in the southern San Joaquin Valley (SSJV) of California. The minimum age of the Kern River Formation was based on the tentative major-element correlation with the Bishop Tuff, a 0.759??0.002 Ma volcanic tephra layer erupted from the Long Valley Caldera. We report a 6.12??0.05 Ma 40Ar/39Ar date for the KRA, updated major-element correlations, trace-element correlations of the KRA and geochemically similar tephra, and a 6.0??0.2 Ma 40Ar/39Ar age for a tephra layer from the Volcano Hills/Silver Peak eruptive center in Nevada. Both major and trace-element correlations show that despite the similarity to the Bishop Tuff, the KRA correlates most closely with tephra from the Volcano Hills/Silver Peak eruptive center. This geochemical correlation is supported by the radiometric dates which are consistent with a correlation of the KRA to the Volcano Hills/Silver Peak center but not to the Bishop Tuff. The 6.12??0.05 Ma age for the KRA and the 6.0??0.2 Ma age for the tephra layer from the Volcano Hills/Silver Peak eruptive center suggest that the upper age of the Kern River Formation is over 5 Ma older than previously thought. Re-interpreted stratigraphy of the SSJV based on the new, significantly older age for the Kern River Formation opens up new opportunities for petroleum exploration in the SSJV and places better constraints on the tectonostratigraphic development of the SSJV. ?? 2007 Elsevier Ltd and INQUA.

  6. Don Edwards San Francisco Bay National Wildlife Refuge: Annual Narrative Report: Calendar Year 2000

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Don Edwards San Francisco Bay NWR, Antioch Dunes NWR, Farallon NWR, San Pablo Bay NWR, Ellicot Slough NWR, Salinas River NWR, and...

  7. San Francisco Bay National Wildlife Refuge: Annual Narrative Report: Calendar Year 1990

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for San Francisco Bay NWR, San Pablo Bay NWR, Antioch Dunes NWR, Farallon NWR, Ellicott Slough NWR, and Salinas River NWR outlines...

  8. San Francisco Bay National Wildlife Refuge Complex: Annual Narrative Report: Calendar Year 1989

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for San Francisco Bay NWR, San Pablo Bay NWR, Antioch Dunes NWR, Farallon NWR, Ellicott Slough NWR, and Salinas River NWR outlines...

  9. San Marino.

    Science.gov (United States)

    1985-02-01

    San Marino, an independent republic located in north central Italy, in 1983 had a population of 22,206 growing at an annual rate of .9%. The literacy rate is 97% and the infant mortality rate is 9.6/1000. The terrain is mountainous and the climate is moderate. According to local tradition, San Marino was founded by a Christian stonecutter in the 4th century A.D. as a refuge against religious persecution. Its recorded history began in the 9th century, and it has survived assaults on its independence by the papacy, the Malatesta lords of Rimini, Cesare Borgia, Napoleon, and Mussolini. An 1862 treaty with the newly formed Kingdom of Italy has been periodically renewed and amended. The present government is an alliance between the socialists and communists. San Marino has had its own statutes and governmental institutions since the 11th century. Legislative authority at present is vested in a 60-member unicameral parliament. Executive authority is exercised by the 11-member Congress of State, the members of which head the various administrative departments of the goverment. The posts are divided among the parties which form the coalition government. Judicial authority is partly exercised by Italian magistrates in civil and criminal cases. San Marino's policies are tied to Italy's and political organizations and labor unions active in Italy are also active in San Marino. Since World War II, there has been intense rivalry between 2 political coalitions, the Popular Alliance composed of the Christian Democratic Party and the Independent Social Democratic Party, and the Liberty Committee, coalition of the Communist Party and the Socialist Party. San Marino's gross domestic product was $137 million and its per capita income was $6290 in 1980. The principal economic activities are farming and livestock raising, along with some light manufacturing. Foreign transactions are dominated by tourism. The government derives most of its revenue from the sale of postage stamps to

  10. The effect of regulation caused by a dam on the distribution of the functional feeding groups of the benthos in the sub basin of the Grande River (san Luis, Argentina).

    Science.gov (United States)

    Vallania, Adriana; Corigliano, Maria Del Carmen

    2007-01-01

    The construction of small dams in principal streams is one of the most common forms of regulation in the province of San Luis since they cause changes of physical, chemical and biological nature downstream. The purpose of this study was to analyze the short-term modifications in the food organization of benthic macroinvertebrates communities due to the construction of a dam in the Grande River (San Luis, Argentina). Two sampling sites were established: one before the dam and another one after it. The samplings were carried out with Surber sampler and during an annual cycle extending from April 1997 to March 1998, and two complementary samplings were done in low and high waters. The field sampling design was stratified randomly, and 3 pseudo replicas were taken in a transect seasonally and monthly and were then averaged. Macroinvertebrates were classified in different functional feeding groups. The comparisons at the level of physical and chemical variables and absolute abundances of the functional groups were carried out by means of the Wilcoxon test for two related samples. The collector-filterers, scrapers and predators increase whereas the collector-gatherers and shredders decreased. There were significant differences at the level of gatherers and shredders.

  11. River

    Directory of Open Access Journals (Sweden)

    Morel Mathieu

    2016-01-01

    Full Text Available The OECD report “Boosting Resilience through Innovative Risk Governance” examines the efforts of OECD countries to prevent or reduce future disaster impacts, and highlights several key areas where improvements can be made. International collaboration is insufficiently utilised to address shocks that have increasingly global consequences. Institutional design plays a significant role in facilitating or hampering the engagement and investments of governmental and non-governmental stakeholders in disaster risk prevention and mitigation. To inform the design of “better” institutions, the OECD proposes the application of a diagnostic framework that helps governments identify institutional shortcomings and take actions to improve them. The goal of the case study on the Rhone River is to conduct an analysis of the progress, achievements and existing challenges in designing and implementing disaster risk reduction strategies through the Rhone Plan from a comparative perspective across a set of selected countries of this study, like Austria and Switzerland, will inform how to improve institutional frameworks governing risk prevention and mitigation. The case study will be used to identify examples of successful practice taking into account their specific country contexts, and analyse their potential for policy transfer.

  12. Groundwater quality in the Santa Clara River Valley, California

    Science.gov (United States)

    Burton, Carmen A.; Landon, Matthew K.; Belitz, Kenneth

    2011-01-01

    The Santa Clara River Valley (SCRV) study unit is located in Los Angeles and Ventura Counties, California, and is bounded by the Santa Monica, San Gabriel, Topatopa, and Santa Ynez Mountains, and the Pacific Ocean. The 460-square-mile study unit includes eight groundwater basins: Ojai Valley, Upper Ojai Valley, Ventura River Valley, Santa Clara River Valley, Pleasant Valley, Arroyo Santa Rosa Valley, Las Posas Valley, and Simi Valley (California Department of Water Resources, 2003; Montrella and Belitz, 2009). The SCRV study unit has hot, dry summers and cool, moist winters. Average annual rainfall ranges from 12 to 28 inches. The study unit is drained by the Ventura and Santa Clara Rivers, and Calleguas Creek. The primary aquifer system in the Ventura River Valley, Ojai Valley, Upper Ojai Valley, and Simi Valley basins is largely unconfined alluvium. The primary aquifer system in the remaining groundwater basins mainly consists of unconfined sands and gravels in the upper portion and partially confined marine and nonmarine deposits in the lower portion. The primary aquifer system in the SCRV study unit is defined as those parts of the aquifers corresponding to the perforated intervals of wells listed in the California Department of Public Health (CDPH) database. Public-supply wells typically are completed in the primary aquifer system to depths of 200 to 1,100 feet below land surface (bls). The wells contain solid casing reaching from the land surface to a depth of about 60-700 feet, and are perforated below the solid casing to allow water into the well. Water quality in the primary aquifer system may differ from the water in the shallower and deeper parts of the aquifer. Land use in the study unit is approximately 40 percent (%) natural (primarily shrubs, grassland, and wetlands), 37% agricultural, and 23% urban. The primary crops are citrus, avocados, alfalfa, pasture, strawberries, and dry beans. The largest urban areas in the study unit are the cities of

  13. Prevalencia de Hipotiroidismo en Pacientes Menopáusicas que acuden al Hospital de San Gabriel, Provincia del Carchi

    OpenAIRE

    Montenegro Sánchez, Marco Trajano

    2014-01-01

    La menopausia se define clínicamente como la ausencia de la menstruación por un período igual o mayor a 12 meses. El incremento en la concentración de tirotropina sérica (TSH), en presencia de concentraciones normales o bajas de hormonas tiroideas circulantes, define la situación de hipotiroidismo subclínico y clínico, respectivamente. La escasa literatura sobre el tema de hipotiroidismo subclínico en pacientes menopáusicas en Ecuador, motivó la realización de este estudio, con el fin de det...

  14. La productividad en el proceso de restauración del Portal de Peregrinos del convento de "San Gabriel"

    OpenAIRE

    Agraz Rodríguez, Lilia Patricia; Diaz Meneses, Marcelo

    2003-01-01

    INTRODUCCIÓN El objeto de esta tesis es brindarles a los Gerentes de Proyectos en Construcción, pautas prácticas que fueron comprobadas para el mejoramiento de la Productividad durante toda la ejecución de la obra. Las pautas se basan en una revisión de lo que se ha investigado hasta ahora en las Mediciones de Proceso y el Comportamiento Organizacional, filtrada a través de la experiencia observada en obra. El haber seleccionado en estudio este tipo de proyecto y su ent...

  15. Between phrén and psyché: Gabriele Buccola and his contribution to the birth of experimental psychology in Italy.

    Science.gov (United States)

    Degni, Silvia

    2006-01-01

    The institution in 1880 of a laboratory of experimental psychology in the San Lazzaro Mental Hospital of Reggio Emilia, directed by Augusto Tamburini, marks a fundamental stage for the birth of scientific psychology in Italy. It was in this laboratory that the Sicilian psychiatrist Gabriele Buccola worked, carrying out reaction-time experiments in a broad and systematic way on "sane" and mentally ill individuals. In so doing, he was following Claude Bernard's lesson--which was advocated also by Comte, Taine, and Ribot, as in Italy by Livi and Tamburini-- according to which mental functions are to be studied in both normal and pathological conditions. With these experiments, Buccola highlighted the way in which reaction time is tied to "attention," how it is altered by mental illness, and how there are various "modifiers" that influence the results. He also shows how the measurement of this "time" represents an important instrument for the differential diagnosis of several mental pathologies. Buccola's work, which is implemented in the first volume of experimental psychology written in Italy, demonstrates how psychology, which in the second half of the nineteenth century aspired to become an autonomous science, developed in Italy from the root of psychiatry, on the common ground of evolutionary positivism.

  16. No-nonsense physicist an overview of Gabriele Giuliani’s work and life

    CERN Document Server

    Vignale, Giovanni; Pellegrini, Vittorio; Jain, Jainendra

    2016-01-01

    This book presents a compact personal biography and a collection of works by Gabriele F. Giuliani - a distinguished condensed matter theorist who made important contributions to our understanding of collective effects in electronic materials. In 2012 he passed away after a long battle with cancer. In addition, the book features scientific contributions from some of Prof. Giuliani's former students and collaborators and a number of personal recollections by friends and colleagues which shed light on the complex, multifaceted personality of a physicist who was also a passionate soccer player and formula Ford pilot.

  17. IMITACIÓN ENTRE PINTURA Y CINE EL REQUIEM DE OROZCO RECREADO POR GABRIEL FIGUEROA

    OpenAIRE

    2010-01-01

    El artículo ofrece una exposición desde la historia y teoría del arte acerca de la imitación entre distintas artes, entre artistas y los posibles motivos para que ocurra la copia de la pintura en el cine. El caso que sirve de referencia es la recreación del grabado de José Clemente Orozco, El Réquiem, que el cinefotógrafo Gabriel Figueroa Mateos elaboró en una película.

  18. Gabriel Marcel e a teoria da participação ontológica

    Directory of Open Access Journals (Sweden)

    Claudinei Aparecido de Freitas da Silva

    2015-12-01

    Full Text Available O texto visa situar a gênese da teoria da “participação ontológica” a partir dos escritos iniciais de Gabriel Marcel (1889-1973 compreendidos entre 1910 e 1914. Para tanto, trata-se de explicitar o estatuto dessa seminal posição e seu respectivo contraponto onto-fenomenológico à ideia de “saber absoluto” no contexto do idealismo moderno tendo, em particular, na “doutrina da intuição”, uma de suas versões mais emblemáticas.

  19. Freedom and Communion: Sameness and Alterity Articulation in Gabriel Marcel’s Philosophy. Some Approaches

    OpenAIRE

    Grassi, Martín; Pontificia Universidad Católica Argentina y Universidad del Salvador-Área San Miguel

    2015-01-01

    In this paper we will try to show how Gabriel Marcel understands the junction between the self and the other as appears in his reflections on the opposition freedom-gift, on his critique of Sartre’s philosophy of freedom, and on metaphysical implications of love. These three approaches point out a way that leads to understand man’s tension between selfhood and alterity, in the heart of a fundamental communion which refer, ultimately, to the divine. Therefore, metaphysical and religious discou...

  20. Magic Realism in Gabriel Garcia Marquez’s One Hundred Years of Solitude

    Directory of Open Access Journals (Sweden)

    B.J Geetha

    2010-08-01

    Full Text Available In his One Hundred Years of Solitude Gabriel Garcia Marquez through the arsenal of magicrealism, deals with war, suffering, and death in the mid-1960 of Colombia which hadwitnessed two hundred thousand politically motivated deaths. The purpose behind portrayingthe politics of the region is to comment on how the nature of Latin American politics is towardsabsurdity, denial, and never-ending repetitions of tragedy. His magical flair is to mergefantastic with reality by introducing to the reader his Colombia, where myths, portents, andlegends exist side by side with technology and modernity. These myths, along with otherelements and events in the novel recount a large portion of Colombian history.

  1. Review of the Luca Aloi's work Ontologia e dramma: Gabriel Marcel e Jean-Paul Sartre a confronto

    OpenAIRE

    Claudinei Aparecido de Freitas da Silva

    2016-01-01

    O texto resenha a obra de Luca Aloi, Ontologia e dramma: Gabriel Marcel e Jean-Paul Sartre a confronto, com prefácio de Franco Riva, Milano: Albo Versorio, 2014. O livro que conta com 175 páginas traz, para o primeiro plano, o cenário acerca da produção dramatúrgico-filosófica de Gabriel Marcel e Jean-Paul Sartre no contexto da tradição fenomenológico-existencial. This text makes a review of theLuca Aloi's work Ontologia e dramma:Gabriel Marcel e Jean-Paul Sartre a confronto, prefaced by F...

  2. Observaciones sobre algunas obras de Pablo Veronés y de sus seguidores en España (Carletto, Benedetto y Gabriele Caliari

    Directory of Open Access Journals (Sweden)

    Ruiz Manero, José María

    2006-03-01

    Full Text Available The author studies the known works in Spain by Carletto, Benedetto and Gabriele Caliari, as well as others attributed to them for the first time.

    En este artículo se estudian tanto las obras conocidas en España de Carletto, Benedetto y Gabriele Caliari, como otras que se les atribuyen por primera vez.

  3. 76 FR 1212 - Gabriel D. Hall-Corporate Family Transaction Exemption-U S Rail New York, LLC and U S Rail...

    Science.gov (United States)

    2011-01-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF TRANSPORTATION Surface Transportation Board Gabriel D. Hall--Corporate Family Transaction Exemption--U S Rail New York, LLC and U S Rail Corporation Gabriel D. Hall (Applicant), an individual, has filed a verified...

  4. Salinity and Flow Monitoring in the San Francisco Bay Delta

    Science.gov (United States)

    This report describes the utility and approximate cost of expanding the salinity water quality monitoring network along the axis of the San Francisco Estuary from Suisun Bay to Rio Vista on the Sacramento River.

  5. Ontologia e drama: Gabriel Marcel e Jean-Paul Sartre em tête-à-tête

    Directory of Open Access Journals (Sweden)

    Claudinei Aparecido de Freitas da Silva

    2016-04-01

    Full Text Available O texto resenha a obra de Luca Aloi, Ontologia e dramma: Gabriel Marcel e Jean-Paul Sartre a confronto, com prefácio de Franco Riva, Milano: Albo Versorio, 2014. O livro que conta com 175 páginas traz, para o primeiro plano, o cenário acerca da produção dramatúrgico-filosófica de Gabriel Marcel e Jean-Paul Sartre no contexto da tradição fenomenológico-existencial.

  6. The Regional Salmon Outmigration Study--survival and migration routing of juvenile Chinook salmon in the Sacramento-San Joaquin River Delta during the winter of 2008-09

    Science.gov (United States)

    Romine, Jason G.; Perry, Russell W.; Brewer, Scott J.; Adams, Noah S.; Liedtke, Theresa L.; Blake, Aaron R.; Burau, Jon R.

    2013-01-01

    Juvenile Chinook salmon (Oncorhynchus tshawytscha) emigrating from natal tributaries of the Sacramento River may use a number of migration routes to navigate the Sacramento-San Joaquin River Delta (hereafter called “the Delta”), each of which may influence their probability of surviving. We applied a mark-recapture model to data from acoustically tagged juvenile late fall-run Chinook salmon that migrated through the Delta during the winter of 2008–09 to estimate route entrainment, survival, and migration times through the Delta. A tag-life study was conducted to determine the potential for premature tag failure. Tag failure began after 12 days and continued until the 45th day. Travel times of tagged fish exceeded minimum tag-failure times, indicating that survival estimates obtained from this study were negatively biased due to tag failure prior to fish exiting the Delta. Survival estimates were not adjusted and represent the joint probability of tag survival and fish survival. However, relative comparisons of survival among Chinook salmon choosing different routes appeared to be robust to tag failure, and migration-routing parameters were unaffected by tag failure. Migration-routing patterns were consistent among release groups. The Sacramento River was the primary migration route for all release groups except one. The percentage of fish entering the Sacramento River ranged from 33 to 55 percent. Sutter and Steamboat Sloughs were the secondary migration route for 9 of the 10 releases. The percentage of fish migrating through this route ranged from 10 to 35 percent. Entrainment into the interior Delta ranged from 15 to 33 percent. The Delta Cross Channel gates were open for 7 of the 10 releases. Entrainment into the interior Delta through the cross channel ranged from 1 to 27 percent. We estimated route-specific survival for 10 release groups that were released between November 14, 2008, and January 19, 2009. Population-level survival through the Delta

  7. Gabriele Winker, Nina Degele: Intersektionalität. Zur Analyse sozialer Ungleichheiten. Bielefeld: transcript Verlag 2009.

    Directory of Open Access Journals (Sweden)

    Heike Kahlert

    2010-03-01

    Full Text Available Gabriele Winker und Nina Degele legen mit ihrer kompakten Monographie erstmals für den deutschsprachigen Raum eine in Theorie, Methodologie und Empirie stringente eigenständige Abhandlung zur intersektionalen Analyse von sozialen Ungleichheiten vor. Das in jeder Hinsicht übersichtlich gestaltete Buch besticht durch eine begründete Argumentation, insbesondere in Bezug auf die theoretischen Vorentscheidungen, durch eine klare Gliederung und vor allem durch die Schritt für Schritt nachvollziehbare Umsetzung des vorgeschlagenen theoretischen und methodologischen Rahmens in die empirische Sozialforschung. Es ist daher uneingeschränkt empfehlenswert, auch für den Einsatz in der Hochschullehre, und es ist von hohem Anregungspotential für die wissenschaftliche Weiterentwicklung intersektionaler Analysen von sozialen Ungleichheiten.This compact monograph by Gabriele Winker and Nina Degele, intended for a German-speaking readership, provides a theoretically, methodologically, and empirically stringent as well as independent critique of intersectional analysis of social inequalities. The book, which is in every sense clearly organized, is striking because of its well-founded argumentation (especially in terms of the authors’ theoretical decisions, its clear structure, and most notably its step-by-step and comprehensible application of the suggested theoretical and methodological framework for empirical social research. The book is thus recommended without reserve, also for use in higher education, and it has the potential to inspire further scientific development of intersectional analysis of social inequities.

  8. Using Satellite Remote Sensing to Map Changes in Aquatic Invasive Plant Cover in the Sacramento-San Joaquin River Delta of California

    Science.gov (United States)

    Potter, Christopher

    2017-01-01

    Waterways of the Sacramento San Joaquin Delta have recently become infested with invasive aquatic weeds such as floating water hyacinth (Eichhoria crassipes) and water primrose (Ludwigia peploides). These invasive plants cause many negative impacts, including, but not limited to: the blocking of waterways for commercial shipping and boating; clogging of irrigation screens, pumps and canals; and degradation of biological habitat through shading. Zhang et al. (1997, Ecological Applications, 7(3), 1039-1053) used NASA Landsat satellite imagery together with field calibration measurements to map physical and biological processes within marshlands of the San Francisco Bay. Live green biomass (LGB) and related variables were correlated with a simple vegetation index ratio of red and near infra-red bands from Landsat images. More recently, the percent (water area) cover of water hyacinth plotted against estimated LGB of emergent aquatic vegetation in the Delta from September 2014 Landsat imagery showed a 80% overall accuracy. For the past two years, we have partnered with the U. S. Department of Agriculture (USDA) and the Department of Plant Sciences, University of California at Davis to conduct new validation surveys of water hyacinth and water primrose coverage and LGB in Delta waterways. A plan is underway to transfer decision support tools developed at NASA's Ames Research Center based on Landsat satellite images to improve Delta-wide integrated management of floating aquatic weeds, while reducing chemical control costs. The main end-user for this application project will be the Division of Boating and Waterways (DBW) of the California Department of Parks and Recreation, who has the responsibility for chemical control of water hyacinth in the Delta.

  9. Assessing water salinity along River Limón and Caño San Miguel irrigation paleochannel (Maracaibo, Venezuela) as affected by the balance of soluble salts in alluvium soils

    Science.gov (United States)

    Rodriguez, Raquel; Moreno, Juan; Hermosilla, Daphne; Gascó, Antonio

    2013-04-01

    The saline degradation of soils that are irrigated with brackish water is worrisome increasing worldwide, and it may further affect the salinity of fresh water in those streams flowing across. The problem that is caused by an increasing concentration of salts that are more soluble than gypsum depends on the quality of irrigation water, climatic aridity, and drainage limitations. All these conditions meet in the alluvium soils of River Limón basin that are crossed by Caño San Miguel irrigation paleochannel. River Limón's regulation by closing Manuelote and Tulé artificial reservoirs has diminished the input of water and sediments from flooding events, which exerted dilutive effects in the past. In addition, the balance of soluble salts in these soils has also registered further net accumulation during those extremely dry years happened before 2006, because the great dilution contribution of ombrogenic dammed water coming from rain has not been enough to compensate salts concentration generated by water evapotranspiration in those irrigated soils of the middle basin, particularly in the absence of superficial runoff and deep drainage. Considering those semi-arid climate conditions prevailing in the area (annual precipitation = 710 mm; potential evapotransporation = 2361 mm), it resulted that water analyses in River Limón showed a ten-fold increased maximum annual salinity concentration (March) along the stream; that is, an electric conductivity (Ce) of 0.37 dS•m-1 (at 25 °C) at Puente Carrasquero pumping station, where water for crop irrigation is subtracted, turns to 34.60 dS•m-1 (at 25 °C) at its base level in Puerto Mara, where it discharges to Lake Maracaibo. In addition, the quality of irrigation water from Caño San Miguel, which aggregates to those coming from River Limón at the pumping station located in Carrasquero just before running through the alluvium of this water stream, resulted pretty irregular. In short, it spanned form C1 to C4 soil

  10. Surface and boundary layer exchanges of volatile organic compounds, nitrogen oxides and ozone during the GABRIEL campaign

    NARCIS (Netherlands)

    Ganzeveld, L.; Eerdekens, G.; Feig, G.; Fischer, H.; Harder, H.; Konigstedt, R.; Kubistin, D.; Martinez, M.; Meixner, F. X.; Scheeren, H. A.; Sinha, V.; Taraborrelli, D.; Williams, J.; de Arellano, J. Vila-Guerau; Lelieveld, J.

    2008-01-01

    We present an evaluation of sources, sinks and turbulent transport of nitrogen oxides, ozone and volatile organic compounds (VOC) in the boundary layer over French Guyana and Suriname during the October 2005 GABRIEL campaign by simulating observations with a single-column chemistry and climate model

  11. Hydrologic requirements of and consumptive ground-water use by riparian vegetation along the San Pedro River, Arizona. Chapters A-D.

    Science.gov (United States)

    Leenhouts, James M.; Stromberg, Juliet C.; Scott, Russell L.; authors include Leenhouts, James M.; Lite, Sharon J.; Dixon, Mark; Rychener, Tyler; Makings, Elizabeth; Williams, David G.; Goodrich, David C.; Cable, William L.; Levick, Lainie R.; McGuire, Roberta; Gazal, Rico M.; Yepez, Enrico A.; Ellsworth, Patrick; Huxman, Travis E.

    2006-01-01

    This study is a coordinated effort by the U.S. Geological Survey (USGS), the U.S. Department of Agriculture, Agricultural Research Service (USDA ARS), and Arizona State University, with assistance from the U.S. Army Corps of Engineers, the University of Wyoming, and the University of Arizona. The specific objectives of the study were: to determine the water needs of riparian vegetation through the riparian growing season and throughout the SPRNCA to ensure its long-term ecological integrity; to quantify the total water use of riparian vegetation within the SPRNCA; and to determine the source of water used by key riparian plant species within the SPRNCA. To meet these objectives, the study was divided into three elements: (1) a characterization of the status and variability of hydrologic factors within the riparian system (USGS), (2) a riparian biohydrology study to relate spatial and temporal aspects of riparian changes and condition to the hydrologic variables (Arizona State University), and (3) a water-use evapotranspiration (ET) study to quantify annual consumptive ground-water use by riparian transpiration and direct evaporation from the stream channel (USDA ARS) in cooperation with the U.S. Army Corps of Engineers, the University of Wyoming, and the University of Arizona. Twenty-six sites within the SPRNCA were selected for collection of vegetation data from three primary streamflow regimes (perennial, intermittent-wet, intermittent-dry), which include the principal vegetation communities. Detailed hydrologic-condition data were collected at a subset of 16 of these sites, called the SPRNCA biohydrology sites. Water-use and water-source data were collected at a subset of 5 of the 16 biohydrology sites. Vegetation data also were collected at supplemental sites within the SPRNCA boundary in the Upper San Pedro Basin and in the Lower San Pedro Basin. In addition to information about vegetation and geomorphic conditions, hydrologic data collected at the 16

  12. Mapping selected trace elements and major ions, 2000-2012, Mojave River and Morongo groundwater basins, southwestern Mojave Desert, San Bernardino County, California

    Science.gov (United States)

    Metzger, Loren F.; Landon, Matthew K.; House, Sally F.; Olsen, Lisa D.

    2015-01-01

    The population of the Mojave River and Morongo groundwater basins has grown rapidly during the last several decades, increasing from an estimated population of almost 273,000 in 1990 (Mojave Water Agency, 2004) to more than 453,000 in 2010 (Mojave Water Agency, 2014). Groundwater is the primary source of potable water in both basins (Mojave Water Agency, 2014). Previous studies noted elevated concentrations of several trace elements, nitrate, and total dissolved solids in groundwater in portions of the two basins (Christensen and Fields-Garland, 2001; Ball and Izbicki, 2004; Izbicki and others, 2008; Mathany and Belitz, 2009; Wright and Belitz, 2010; Dawson and Belitz, 2012; and Izbicki and others, 2012). Since 2000, the U.S. Geological Survey (USGS) has collected water-quality data annually from a network of wells and has provided quality-assurance for Mojave Water Agency (MWA) data that are stored in the USGS National Water Information System (NWIS) database. The new data and results from the joint State of California and USGS Groundwater Ambient Monitoring and Assessment (GAMA) program assessments of regional water quality (these data are also stored in NWIS), in combination with ongoing MWA/USGS groundwater-quality monitoring provide a timely opportunity for mapping of groundwater quality in the Mojave River and Morongo groundwater basins. The purpose of this report is to provide maps and time-series plots of concentrations of selected water-quality constituents (arsenic, boron, chromium-6, total chromium, dissolved oxygen, fluoride, iron, manganese, nitriate plus nitrite as nitrogen, total dissolved solids, uranium, and vanadium) in the Mojave River and Morongo groundwater basins using data collected by the USGS and MWA from 2000 to 2012. These maps and plots can be accessed on this website.

  13. Émile Durkheim between Gabriel Tarde and Arnold van Gennep

    DEFF Research Database (Denmark)

    Thomassen, Bjørn

    2012-01-01

    This article will situate Durkheim's work by revisiting two debates that influenced his attempt to define and give direction to sociology and anthropology: the debates between Durkheim and Gabriel Tarde and the debates between Durkheim and Arnold van Gennep. The battle between Tarde and Durkheim...... has in recent years been the object of several conferences and publications. This has happened alongside a much needed Tarde revival in sociology. However, Tarde was only one of Durkheim's opponents. For a long period, following Tarde's death in 1904, Arnold van Gennep represented the strongest...... critique of Durkheim's project. This ‘debate’ is little known among anthropologists and social scientists. The aim of this article is to situate Durkheim and the birth of the social sciences in France between both of these two figures. The aim is therefore also to bring together two disciplinary debates...

  14. San Joaquin-Tulare Conjunctive Use Model: Detailed model description

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, N.W.T.

    1992-03-01

    The San Joaquin - Tulare Conjunctive Use Model (SANTUCM) was originally developed for the San Joaquin Valley Drainage Program to evaluate possible scenarios for long-term management of drainage and drainage - related problems in the western San Joaquin Valley of California. A unique aspect of this model is its coupling of a surface water delivery and reservoir operations model with a regional groundwater model. The model also performs salinity balances along the tributaries and along the main stem of the San Joaquin River to allow assessment of compliance with State Water Resources Control Board water quality objectives for the San Joaquin River. This document is a detailed description of the various subroutines, variables and parameters used in the model.

  15. La Sanidad en la Base Antártica del E.T. "Gabriel de Castilla" The Medical Service in the Army's Antarctic Base "Gabriel de Castilla"

    Directory of Open Access Journals (Sweden)

    F. De Diego Lousa

    2011-06-01

    Full Text Available En marzo de 2007, dio comienzo el Año Polar Internacional 2007-2008 (IPY, que se desarrolló durante 2 años hasta marzo de 2009, para abarcar temporadas completas en el Ártico y en la Antártida. Es un acontecimiento de carácter científico y a escala mundial, que tiene carácter conmemorativo. Su celebración coincide con el 125 aniversario del Primer Año Polar Internacional (1887-1888, el 75 Aniversario del Segundo Año Polar Internacional (1932-1933 y el 50 Aniversario del Año Geofísico Internacional (1957-1958, que condujo al establecimiento del SCAR y del Tratado Antártico. El IPY 2007-2009 está promovido por el Internacional Council for Science (ICSU y la World Meteorological Organization (WMO. España es la primera vez que ha participado activamente en este acontecimiento, haciéndolo con la primera campaña Ártica del BIO Hespérides, y con las 2 bases antárticas operativas. Para la base Antártica del Ejército de Tierra "Gabriel de Castilla", el año 2008 es especial ya que, a la celebración del Año Polar Internacional, se une la conmemoración del 20 aniversario de la presencia española en la Isla Decepción. Fue en el año 1988 cuando se instaló un primer refugio, pero no fue hasta el año 1998, cuando tuvo consideración de Base Antártica. Este artículo tiene como finalidad la descripción de las áreas de Sanidad y de Medio Ambiente, tal y como se denominan en la estructura de la Campaña Antártica del Ejército de Tierra, o áreas cuya responsabilidad corresponden a Oficiales del Cuerpo Militar de Sanidad; también conmemorar esta fecha tan señalada, y a las personas que han participado en las distintas campañas antárticas.In March 2007 began the International Polar Year 2007-2008 (IPY that lasted two years until March 2009 to span complete seasons in the Arctic and the Antarctic. It is a scientific event on a global scale with a commemorative character. Its celebration coincides with the 125th Anniversary of

  16. Diversidade genética de Enterolobium contortisiliquum (Vell. Morong. no Baixo Rio São Francisco, por meio de marcadores RAPD Genetic diversity of Enterolobium contortisiliquum (Vell. Morong. in the low San Francisco river by RAPD markers

    Directory of Open Access Journals (Sweden)

    Georgea da Cruz Santana

    2008-06-01

    Full Text Available Enterolobium contortisiliquum Vell. Morong (Leguminosae-Mimosoideae é uma espécie muito utilizada em programas de recuperação de matas ciliares no Baixo Rio São Francisco, devido ao seu rápido crescimento inicial. Assim, o objetivo deste trabalho foi avaliar, por meio de marcadores moleculares RAPD, a diversidade genética de oito indivíduos de uma população remanescente dessa espécie, visando contribuir para a definição de estratégias de coleta de sementes. Os indivíduos estão situados em uma área de 100 ha de mata ciliar do Baixo Rio São Francisco. Para a extração do DNA, pelo método CTAB 2%, foram utilizadas folhas tenras dos indivíduos. Testaram-se 20 oligonucleotídios de 10 bases de seqüência arbitrária, cujos produtos foram separados em gel de agarose 0,8%, submetidos à eletroforese horizontal, corados com brometo-de-etídio e visualizados em luz ultravioleta. A similaridade genética entre os indivíduos foi calculada pelo Coeficiente de Similaridade de Jaccard e a construção do dendrograma, realizada utilizando-se o método UPGMA. O valor médio de diversidade genética entre as matrizes foi de 49%, variando de 33 a 85%. Os indivíduos 6 e 7 apresentaram relativa proximidade genética (67%, não sendo indicado o plantio de suas mudas ou semeadura direta para recuperação de área ciliar em locais muito próximos. A partir dos resultados observados, podem-se desenvolver estratégias para a coleta de sementes e produção de mudas, auxiliando, assim, programas de restauração ambiental.Enterolobium contortisiliquum Vell. Morong (Leguminosae-Mimosoideae is very much used in riparian forest restoration programs in the Low San Francisco River because of its fast initial growth. The objective of this work was to evaluate by RAPD molecular markers the genetic diversity of eight individuals of a remaining population of this species, in order to contribute for the definition of strategies for seed production. The

  17. 77 FR 54811 - Safety Zone; TriRock San Diego, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2012-09-06

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; TriRock San Diego, San Diego Bay, San Diego... safety zone upon the navigable waters of the San Diego Bay, San Diego, CA, in support of a bay swim in San Diego Harbor. This safety zone is necessary to provide for the safety of the participants, crew...

  18. 78 FR 58878 - Safety Zone; San Diego Shark Fest Swim; San Diego Bay, San Diego, CA

    Science.gov (United States)

    2013-09-25

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego Shark Fest Swim; San Diego Bay, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone upon the navigable waters of the San Diego Bay, San Diego, CA, in support of San...

  19. 78 FR 53243 - Safety Zone; TriRock San Diego, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2013-08-29

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; TriRock San Diego, San Diego Bay, San Diego... temporary safety zone upon the navigable waters of the San Diego Bay, San Diego, CA, in support of a... Bryan Gollogly, Waterways Management, U.S. Coast Guard Sector San Diego; telephone (619) 278-7656, email...

  20. The San Joaquin Valley Westside Perspective

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.; Linneman, J. Christopher; Tanji, Kenneth K.

    2006-03-27

    Salt management has been a challenge to westside farmerssince the rapid expansion of irrigated agriculture in the 1900 s. Thesoils in this area are naturally salt-affected having formed from marinesedimentary rocks rich in sea salts rendering the shallow groundwater,and drainage return flows discharging into the lower reaches of the SanJoaquin River, saline. Salinity problems are affected by the importedwater supply from Delta where the Sacramento and San Joaquin Riverscombine. Water quality objectives on salinity and boron have been inplace for decades to protect beneficial uses of the river. However it wasthe selenium-induced avian toxicity that occurred in the evaporationponds of Kesterson Reservoir (the terminal reservoir of a planned but notcompleted San Joaquin Basin Master Drain) that changed public attitudesabout agricultural drainage and initiated a steady stream ofenvironmental legislation directed at reducing non-point source pollutionof the River. Annual and monthly selenium load restrictions and salinityand boron Total Maximum Daily Loads (TMDLs) are the most recent of thesepolicy initiatives. Failure by both State and Federal water agencies toconstruct a Master Drain facility serving mostly west-side irrigatedagriculture has constrained these agencies to consider only In-Valleysolutions to ongoing drainage problems. For the Westlands subarea, whichhas no surface irrigation drainage outlet to the San Joaquin River,innovative drainage reuse systems such as the Integrated Farm DrainageManagement (IFDM) offer short- to medium-term solutions while morepermanent remedies to salt disposal are being investigated. Real-timesalinity management, which requires improved coordination of east-sidereservoir releases and west-side drainage, offers some relief toGrasslands Basin farmers and wetland managers - allowing greater salinityloading to the River than under a strict TMDL. However, currentregulation drives a policy that results in a moratorium on all

  1. Geology of Paleozoic Rocks in the Upper Colorado River Basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, Excluding the San Juan Basin

    Science.gov (United States)

    Geldon, Arthur L.

    2003-01-01

    The geology of the Paleozoic rocks in the Upper Colorado River Basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, was studied as part of the U.S. Geological Survey's Regional Aquifer-System Analysis Program to provide support for hydrogeological interpretations. The study area is segmented by numerous uplifts and basins caused by folding and faulting that have recurred repeatedly from Precambrian to Cenozoic time. Paleozoic rocks in the study area are 0-18,000 feet thick. They are underlain by Precambrian igneous, metamorphic, and sedimentary rocks and are overlain in most of the area by Triassic formations composed mostly of shale. The overlying Mesozoic and Tertiary rocks are 0-27,000 feet thick. All Paleozoic systems except the Silurian are represented in the region. The Paleozoic rocks are divisible into 11 hydrogeologic units. The basal hydrogeologic unit consisting of Paleozoic rocks, the Flathead aquifer, predominantly is composed of Lower to Upper Cambrian sandstone and quartzite. The aquifer is 0-800 feet thick and is overlain gradationally to unconformably by formations of Cambrian to Mississippian age. The Gros Ventre confining unit consists of Middle to Upper Cambrian shale with subordinate carbonate rocks and sandstone. The confining unit is 0-1,100 feet thick and is overlain gradationally to unconformably by formations of Cambrian to Mississippian age. The Bighom aquifer consists of Middle Cambrian to Upper Ordovician limestone and dolomite with subordinate shale and sandstone. The aquifer is 0-3,000 feet thick and is overlain unconformably by Devonian and Mississipplan rocks. The Elbert-Parting confining unit consists of Lower Devonian to Lower Mississippian limestone, dolomite, sandstone, quartzite, shale, and anhydrite. It is 0-700 feet thick and is overlain conformably to unconformably by Upper Devonian and Mississippian rocks. The Madison aquifer consists of two zones of distinctly different lithology. The lower (Redwall-Leadville) zone

  2. Magnetic levitation assisted aircraft take-off and landing (feasibility study - GABRIEL concept)

    Science.gov (United States)

    Rohacs, Daniel; Rohacs, Jozsef

    2016-08-01

    The Technology Roadmap 2013 developed by the International Air Transport Association envisions the option of flying without an undercarriage to be in operation by 2032. Preliminary investigations clearly indicate that magnetic levitation technology (MagLev) might be an appealing solution to assist the aircraft take-off and landing. The EU supported research project, abbreviated as GABRIEL, was dealing with (i) the concept development, (ii) the identification, evaluation and selection of the deployable magnetic levitation technology, (iii) the definition of the core system elements (including the required aircraft modifications, the ground-based system and airport elements, and the rendezvous control system), (iv) the analysis of the safety and security aspects, (v) the concept validation and (vi) the estimation of the proposed concept impact in terms of aircraft weight, noise, emission, cost-benefit). All results introduced here are compared to a medium size hypothetic passenger aircraft (identical with an Airbus A320). This paper gives a systematic overview of (i) the applied methods, (ii) the investigation of the possible use of magnetic levitation technology to assist the commercial aircraft take-off and landing processes and (iii) the demonstrations, validations showing the feasibility of the radically new concept. All major results are outlined.

  3. Medicine, Gabriel García Márquez, and 'Love in the time of cholera'.

    Science.gov (United States)

    Toledo-Pereyra, Luis H

    2008-01-01

    The Nobel award-winning author Gabriel García Márquez (born 1927) originally released his book Love in the Time of Cholera in Colombia in 1985. For us physicians and surgeons this book contains lessons about medical humanities and the opportunity to apply them to our profession. Dr. Juvenal Urbino, one of the book's central figures, is a distinguished physician with impeccable training in Paris in the late 1870s to early 1880s. He returned to his native Colombian Caribbean coast to practice medicine and surgery. There his practice set an example for contemporary and future generations of physicians. Urbino was knowledgeable, dedicated, committed, studious, and well-intentioned. He mastered the humanities to the benefit of patients and society alike. He was an outstanding professor at the medical school and a favorite teacher to his attentive students. For all his good virtues, however, he did not serve the poor as much as he should have, possibly as a consequence of his opulent origin in the District of the Viceroys of his natal city. In short, Dr. Urbino brought to the medical profession a bright example of responsibility, professionalism, and integrity. Thus, he should be remembered as a physician and professor worthy of imitating in today's practice of medicine.

  4. [The measurement of time and its instruments: the program of experimental psychology of Gabriele Buccola].

    Science.gov (United States)

    Degni, Silvia

    2008-01-01

    Gabriele Buccola is remembered as the first Italian psychologist to have developed a rigorous program of laboratory research. The careful examination of the instruments and experimental planning of his psychochronometric investigations reveals the indissoluble bond between theory and experimentation that defines a scientific conception of psychology on the basis of a differential methodology. For Buccola it is important to demonstrate that there exist "laws" that govern the mental processes, and that there exists a time that regulates human reactions and behaviour, considering however the individual differences and various factors that can bear influence to increase or decrease it. The use of 'intelligent' instruments proves to be fundamental within a model of experimentation directed towards pointing out individual differences and not just identifying the general laws of mental functioning. Buccola in this way imparts a psychological characterization to the study of mental illness--placing him as an initiator of experimental psychopathology, which will have a significant development in Europe thanks precisely to the work of Kraepelin--along with a differential and clinical-experimental bent to the emerging Italian scientific psychology. Lastly, the attention directed to the study of complex mental processes leads Buccola to lay the foundation in Italy for the study of the subjective experience of time.

  5. El infante don Gabriel y el impresor Ibarra en la obra cumbre del Salustio

    Directory of Open Access Journals (Sweden)

    Olaechea Labayen, Juan B.

    1997-04-01

    Full Text Available Not available.En la obra conocida como el «Salustio de Ibarra», considerada por especialistas domésticos y foráneos como la mejor impresa en España, convergen circunstancias relevantes debidas a la participación intelectual del infante don Gabriel de Borbón y la eficiencia técnica de Joaquín Ibarra. El autor reivindica la autenticidad de los textos atribuidos al infante contra cierto escepticismo sembrado en razón de la elevada alcurnia de la atribución. Seguidamente, se realiza el análisis de las cualidades técnicas de la impresión, eminentes en una época de esplendor del arte impresorio, y en cuya confección colaboraron los más descollantes artistas del buril de aquel período considerado de triunfo de la estampa ilustrada.

  6. Political Ecology in Gabriel Garcia Marquez's One Hundred Years of Solitude

    Directory of Open Access Journals (Sweden)

    Eman Mohammed ElSherief

    2016-04-01

    Full Text Available The roots of ecology prolong profoundly within earlier phases of history, when the naturalistic fabric was first evinced.  Bringing out his On the Origin of Species in 1859, Darwin not merely engendered a biological culmination but also heralded the revolutionary critical canon of naturalism that was virtually a stone thrown in the vast stagnant lake of traditional literature. Via the naturalistic lens, the whole bulk of man’s behavioral attributes are being expounded in terms of milieu and heredity. The mid-1990s witnessed the publication of The Environmental Imagination by Lawrence Buell in 1995, and The Ecocriticism Reader edited by Cheryll Gloffelty and Harold Fromm in 1996, which palpably underpinned ecocriticism as revolving around the inextricable liaison between literature and the physical environment. The political ecology term was coined to further scrutinize relations among people that pertain to nature. The present paper is an endeavor to pursue the ecological tenor of Gabriel Garcia Marquez’s landmark novel, One Hundred Years of Solitude, and how it was admirably exploited to address precarious postcolonial issues. Keywords: Political ecology, Marquez, naturalism, ecocriticism, post-colonialism.

  7. Petrología y geoquímica de las rocas máficas-ultramáficas del área río Las Águilas - arroyo de Los Manantiales, Provincia de San Luis Petrology and geochemistry of mafic-ultramafic rocks in the Las Águilas River-of the Manantiales stream area, San Luis

    Directory of Open Access Journals (Sweden)

    G. Ferracutti

    2007-09-01

    Full Text Available Dada la carencia de información de campo detallada, se efectuó el mapeo y muestreo de los cuerpos máficos-ultramáficos aflorantes entre el río de Las Águilas y el arroyo de Los Manantiales en la provincia de San Luis. La escasa información de campo, petrográfica y geoquímica de las unidades de éste área dificultaba la vinculación entre las rocas aflorantes y aquellas reconocidas en los testigos de perforación. Los cuerpos ígneos de interés se hallan en contacto con el basamento metamórfico a través de fallas de alto ángulo de buzamiento y/o contactos intrusivos. En Las Higueras y Virorco, se identificaron afloramientos de rocas máficas-ultramáficas con textura magmática primaria de tipo estratificada no-uniforme de regularidad intermitente. El estudio de estos cuerpos generó un desafío particular debido a los procesos deformación, metamorfismo y alteración que los han afectado. Estos factores no solo modificaron la mineralogía de las rocas sino que ademas generaron bloques basculados reconocidos por la presencia de texturas de estratificación magmaticas cuya posición espacial no se corresponde con la magmática originaria. Los patrones de los elementos de tierras raras normalizados a condrita permiten identificar un proceso de diferenciación, con mayor enriquecimiento en los contenidos de tierras raras en las rocas más evolucionadas. En base a los contenidos de tierras raras de las rocas ultramáficas, se infiere que la cristalización magmática estuvo controlada por la presencia de olivino y ortopiroxeno.Geological mapping was completed in the area between Las Águilas River and the Manantiales stream in San Luis province due to the absence of a detailed geologic map of the mafic-ultramafic bodies which occur in this region. Also the lack of petrographic and geochemical information constituted a draw back when attempting to relate surface and subsurface rocks. In this contribution a geological map of the area and

  8. Border Security: The San Diego Fence

    Science.gov (United States)

    2007-05-23

    sector is located north of Tijuana and Tecate, Mexican cities with a combined population of 2 million people, and features no natural barriers to entry...more marked in the areas where fencing was constructed within San Diego sector. The USBP’s Imperial Beach and Chula Vista stations saw their...effects on (1) the Tijuana River National Estuarine Research and Reserve; (2) state and federally listed threatened and endangered species; (3) lands

  9. Is it restoration or reconciliation? California's experience restoring the Sacramento - San Joaquin River Delta provides lessons learned and pathways forward to sustain critical ecosystem functions and services in a highly managed riverine delta.

    Science.gov (United States)

    Viers, J. H.; Kelsey, R.

    2014-12-01

    Reconciling the needs of nature and people in California's Sacramento - San Joaquin River Delta represents one of the most critical ecosystem management imperatives in western North America. Over 150 years the Delta has been managed for near-term human benefits and in the process 95% of riverine and deltaic wetlands have been lost throughout the region. Despite extensive land conversion and alteration of hydrological and physical processes, the Delta remains important habitat for migratory birds and is home to over 60% of California's native fish species. It is also the waterwheel for the state's vast water distribution network and is maintained by a system of constructed levees that are at risk from catastrophic failure due to sea level rise, floods, and/or seismic activity. Such a collapse would have dire consequences for > 25M humans and world's 10th largest economy that depend on its freshwater. Thus, the ultimate cost of this ecosystem alteration and simplification is a riverscape that is no longer reliable for nature or people. For 30 years, attempts to 'restore' Delta ecosystems and improve reliability have met with mixed results. For example, reconnection of floodplains to floodwaters has resulted in improved ecological health for native fishes and recharge to localized aquifers. Uncoordinated releases of discharges below dams, however, have resulted in diminished water quality and populations of indicator species. Attempts to create wildlife friendly farms have been countered by an increase in perennial agriculture and commensurate increases in irrigation water demand. From these lessons learned, we demonstrate three key components of a reconciled Delta that will be necessary in the future: 1) full restoration of critical habitats, reconnecting land and water to rebuild ecosystem function; 2) landscape redesign, incorporating natural and engineered infrastructure to create a biologically diverse, resilient landscape to support both agriculture and natural

  10. Gabriel Tarde ve Medya-Toplum İlişkisini Yeniden Keşfetmek

    Directory of Open Access Journals (Sweden)

    Murat Sadullah Çebi

    2013-09-01

    Full Text Available ÖzBu çalışmanın amacı, Fransız sosyolog Gabriel Tarde’ın geliştirdiği ‘kamusal alan modeli’ üzerinden medya ve toplum ilişkisini yeniden keşfetmek, anlamak ve açıklamaktır. Tarde’ın kamusal alan modeli, karşılıklı etkileşen dört unsurdan oluşur: Basın, sohbet, kamuoyu, eylem. Tarde, modern toplumda basına önemli işlevler yükler. Tarde’a göre basın; bilgili, eleştirel ve rasyonel bir kamunun ortaya çıkmasını ve gelişmesini sağlamıştır. İkinci olarak; kahvehane ve salonlarda cereyan eden bir kamusal tartışma ve müzakere biçimine, yani sohbetlere zemin oluşturmuştur. Üçüncü olarak; kamuoyunu dillendirmiş ve oluşturmuştur. Dördüncü olarak; bireylerin sosyal, politik ve ekonomik süreçlerdeki seçim ve kararlarını etkilemiştir. Nihayetinde, zihinlerde hayalî bir kurgu olarak millet ve milliyet fikrini oluşturmuştur. Araştırmada; Tarde’ın kamusal alan modelinin, iletişim biliminde ‘iki aşamalı iletişim akışı modeli’ olarak bilinen ‘sınırlı medya etkileri modeli’nin ilk örneklerinden biri olduğu sonucuna ulaşılacaktır. AbstractThe purpose of this study is to rediscover, to understand and to interpret, relationships between the mass media and society through public sphere model developed by French sociologist Gabriel Tarde. Tarde’s public sphere model consists of four elements: Press, conversation, public opinion and action. Tarde attributed important roles to press in modern society. Firstly, according to Tarde press provided to emerge and to develop of a knowledgeable, critical and rational public. Secondly, it formed a basis for public discussions and deliberations, in other words for conversations that took place in coffee houses and saloons. Thirdly, it expressed and created public opinion. Fourthly, it determined choices and decisions of people in social, economic and political processes. Lastly, it created the idea of nation and nationality

  11. Adult onset asthma and interaction between genes and active tobacco smoking: The GABRIEL consortium

    Science.gov (United States)

    Postma, D. S.; Moffatt, M. F.; Jarvis, D.; Ramasamy, A.; Wjst, M.; Omenaas, E. R.; Bouzigon, E.; Demenais, F.; Nadif, R.; Siroux, V.; Polonikov, A. V.; Solodilova, M.; Ivanov, V. P.; Curjuric, I.; Imboden, M.; Kumar, A.; Probst-Hensch, N.; Ogorodova, L. M.; Puzyrev, V. P.; Bragina, E. Yu; Freidin, M. B.; Nolte, I. M.; Farrall, A. M.; Cookson, W. O. C. M.; Strachan, D. P.; Koppelman, G. H.; Boezen, H. M.

    2017-01-01

    Background Genome-wide association studies have identified novel genetic associations for asthma, but without taking into account the role of active tobacco smoking. This study aimed to identify novel genes that interact with ever active tobacco smoking in adult onset asthma. Methods We performed a genome-wide interaction analysis in six studies participating in the GABRIEL consortium following two meta-analyses approaches based on 1) the overall interaction effect and 2) the genetic effect in subjects with and without smoking exposure. We performed a discovery meta-analysis including 4,057 subjects of European descent and replicated our findings in an independent cohort (LifeLines Cohort Study), including 12,475 subjects. Results First approach: 50 SNPs were selected based on an overall interaction effect at p<10−4. The most pronounced interaction effect was observed for rs9969775 on chromosome 9 (discovery meta-analysis: ORint = 0.50, p = 7.63*10−5, replication: ORint = 0.65, p = 0.02). Second approach: 35 SNPs were selected based on the overall genetic effect in exposed subjects (p <10−4). The most pronounced genetic effect was observed for rs5011804 on chromosome 12 (discovery meta-analysis ORint = 1.50, p = 1.21*10−4; replication: ORint = 1.40, p = 0.03). Conclusions Using two genome-wide interaction approaches, we identified novel polymorphisms in non-annotated intergenic regions on chromosomes 9 and 12, that showed suggestive evidence for interaction with active tobacco smoking in the onset of adult asthma. PMID:28253294

  12. The Handheld Library: Developments at the Rector Gabriel Ferraté Library, UPC

    Directory of Open Access Journals (Sweden)

    Beatriz Benítez Juan

    2011-10-01

    Full Text Available The purpose of this paper is to highlight the mobile services developed by the Rector Gabriel Ferraté Library (BRGF of the Universitat Politècnica de Catalunya (UPC-Barcelona Tech in Barcelona, Spain. We hope this paper will be of use to other libraries exploring new technologies for communicating and delivering their services to users at a time when mobile services are an emerging topic in librarianship and information science literature. By setting out the successive steps involved in the as yet unfinished process of building our mobile services portfolio, we aim to offer a detailed picture of the mobile services and features offered by a university library from a case study perspective. The main topics to be discussed include: The BRGF’s mobile website, including the information available, its interactive capabilities and the services it provides to its users. The mobile-friendly version of UP Commons(the UPC Library Service’s institutional repositories. The UPC Library Service’s mobile OPAC. The mobile version of u-win(BRGF’s videogame service. The use of QR codes to deliver information to mobile devices. Text message notifications. Additional topics for discussion include: The library’s organisation and the organisational concepts that underpin and make possible its technological developments (including mobile. BRGF’s concern regarding the reduction of investment in the development of mobile services. The criteria and tools used to guide the library’s decisions regarding the design and orientation of current and future mobile services. How mobile services can help to improve the image of the library as a leading technology site. Selected mobile features that BRGF plans to offer in the near future. Ultimately, this paper aims to delineate the effectiveness and potential of delivering library services by the preferred means of communication of a new generation of students and teachers.

  13. La Medicina en la Obra Literaria de Gabriel García Márquez

    Directory of Open Access Journals (Sweden)

    Fernando Sánchez Torres

    1999-08-01

    había hojeado todos y leído algunos.

    Si analizamos sus novelas, crónicas y cuentos con el propósito de extraer de ellos los temas médi-cos -que es lo que hice para poder escribir este ensayo- encontraremos que, en efecto, Gabriel García Márquez estaba muy familiarizado con los asuntos galénicos. Se advierte su afición y hasta su pasión por ellos. Además de haber leído enciclo-pedias, tuvo también que documentarse muy bien en otras fuentes para poder escribir con tanta propiedad, no siendo la medicina su profesión.

    En la década de los 60, cuando residía en Ciudad de México y daba a conocer en privado y a cuenta gotas Cien años de soledad, sus amigos compro-baron su obsesión documental, como que su mesa de trabajo acumulaba montones de libros que hablaban de alquimia, de navegantes, “manuales de medicina casera, crónicas sobre las pestes medievales, manuales de venenos y antídotos, crónicas de Indias, estudios sobre el escorbuto, el beriberi y la pelagra…” (6. No es de extrañar, entonces, que en su novela cumbre mencione que Melquíades “era un fugitivo de cuantas plagas y catástrofes habían flagelado al género humano. Sobrevivió -dice- a la pelagra en Persia, al escorbuto en el Archipiélago de Malasia, a la lepra en Alejandría, al beriberi en el Japón, a la peste bubónica en Madagascar…” (7

    Veremos luego que lo afirmado ahora salta a la vista en algunas de sus principales narraciones: Crónica de una muerte anunciada, El general en su laberinto, El amor en los tiempos del cólera, Sobre el amor y otros demonios…

    El inmortal Lope de Vega goza de la predilección de García Márquez. Otro tanto puede decirse del francés François Rabelais, según deduzco de un párrafo extraído de Cien años de soledad. En el último capítulo de su obra maestra aparece un personaje, Gabriel, que tenía una sigilosa novia llamada Mercedes. Formaba parte -dice el narrador- de un grupo de jóvenes intelectuales

  14. Invasive Plants - San Joaquin River [ds624

    Data.gov (United States)

    California Department of Resources — The purpose of this work is to estimate the occurrence, distribution, approximate locations, and abundance of red sesbania (Sesbania punicea) and four other major...

  15. SAN CARLOS APACHE PAPERS.

    Science.gov (United States)

    ROESSEL, ROBERT A., JR.

    THE FIRST SECTION OF THIS BOOK COVERS THE HISTORICAL AND CULTURAL BACKGROUND OF THE SAN CARLOS APACHE INDIANS, AS WELL AS AN HISTORICAL SKETCH OF THE DEVELOPMENT OF THEIR FORMAL EDUCATIONAL SYSTEM. THE SECOND SECTION IS DEVOTED TO THE PROBLEMS OF TEACHERS OF THE INDIAN CHILDREN IN GLOBE AND SAN CARLOS, ARIZONA. IT IS DIVIDED INTO THREE PARTS--(1)…

  16. San Carlo Operaen

    DEFF Research Database (Denmark)

    Holm, Bent

    2005-01-01

    En indplacering af operahuset San Carlo i en kulturhistorisk repræsentationskontekst med særligt henblik på begrebet napolalità.......En indplacering af operahuset San Carlo i en kulturhistorisk repræsentationskontekst med særligt henblik på begrebet napolalità....

  17. Gabriele Veneziano : "La physique moderne doit dépasser Einstein et explorer l'avant-Big Bang"

    CERN Multimedia

    Deschamps, Pascale-Marie

    2004-01-01

    Interview with Gabriele Veneziana: in search of the infinitesimally small and infinitesimally large, the Standard Model of elementary particles and Einstein's general relativity are not enough to explain the universe. The "visible" matter predicted by the Standard Model represents only 5% of the energy of the Universe, the dark "invisible" matter constitutes 25 to 30%. Therefore 65 to 70 % of something else is missing. String theory calls into question all that one knows of the primordial universe formulated by the Standard Model (4 pages)

  18. IDENTIDADE E REPRESENTAÇÃO NAS OBRAS DE BERNARD MALAMUD E GABRIEL GARCÍA MÁRQUEZ

    Directory of Open Access Journals (Sweden)

    ELIANE SANTANA DIAS DEBUS

    2008-11-01

    Full Text Available Os romances As vidas de Dubin, de escritor norte-americano Bernard Malamud,e O general em seu labirinto, do escritor latino-americano Gabriel GarcíaMárquez, são analisados sobre o mesmo eixo temático que diz respeito àconflitante tentativa das personagens principais dessas narrativas em constituiruma identidade. A hipótese geradora dessa leitura é de que, ao construir umaidentidade individual, essas personagens buscam (reconstruir uma identidadenacional. Os referenciais teóricos advindos dos estudos pós-coloniais são abase para a análise comparativa dessas duas narrativas.

  19. Testimonio del historiador José Gabriel Vazeilles : Trabajadores, política y cambios en la Argentina de 2004

    OpenAIRE

    2004-01-01

    El historiador José Gabriel Vazeilles brinda su mirada en el Día de los Trabajadores, 1º de mayo de 2004, sobre la situación actual, los recientes cambios políticos luego de la crisis argentina del año 2001; describe etapas dentro del sistema capitalista dependiente en el que el país se desarrolla y caracteriza el gobierno naciente del presidente Néstor Kirchner. Este testimonio sale al aire y se registra del programa Todos los Climas, conducido por Cintia Rodil y Mario Arteca con producción ...

  20. Cien años de soledad : Novela de Gabriel García Márquez

    Directory of Open Access Journals (Sweden)

    Germán Vargas

    1967-04-01

    Full Text Available Cien años de soledad, la novela de Gabriel García Márquez publicada por la Editorial Sudamericana de Buenos Aires, es la culminación y la conclusión definitiva del ciclo de Macondo y significa el tránsito hacia nuevos ternas y nuevos personajes. Macondo, el pueblo costeño de sol abrumador y calor inaguantable y de amplias calles arenosas, es la Aracataca natal del autor, un poblado magdalenense que vivió mejores épocas en los años del auge del cultivo del banano.

  1. La religión del amor en la última narrativa de Gabriel García Márquez

    OpenAIRE

    Giobanna Patricia Buenahora Molina

    1998-01-01

    Gabriel García Márquez es un escritor con una profunda vocación religiosa, tal y como ha demostrado en su ya dilatada trayectoria novelística. Sus obras están llenas de mitos bíblicos, personajes legendarios, criaturas procedentes del Antiguo Testamento, vendedores de milagros, santos, predicadores de pelaje variopinto, sermoneros profesionales, ángeles destronados, sábanas santas, mujeres que suben al cielo en estado virginal, resurrecciones, etcétera. Faltaba por tanto uno de los temas más ...

  2. Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Topographic data were collected by the U.S. Geological Survey (USGS) in 2015 for the Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The...

  3. Digital Elevation Model of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This product is a digital elevation model (DEM) for the Little Holland Tract in the Sacramento-San Joaquin River Delta, California based on U.S. Geological Survey...

  4. Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, using backpack GPS

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Topographic data were collected by the U.S. Geological Survey (USGS) in 2015 for Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The data...

  5. Digital elevation model of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This product is a digital elevation model (DEM) for the Little Holland Tract in the Sacramento-San Joaquin River Delta, California based on U.S. Geological Survey...

  6. Bathymetric measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Bathymetric data were collected by the U.S. Geological Survey (USGS) in 2015 for the Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The...

  7. Bathymetric measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, from personal watercraft

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Bathymetric data were collected by the U.S. Geological Survey (USGS) in 2015 for Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The data...

  8. Digital elevation model of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This product is a digital elevation model (DEM) for the Little Holland Tract in the Sacramento-San Joaquin River Delta, California based on U.S. Geological Survey...

  9. Forecasting Selenium Discharges to the San Francisco Bay-Delta Estuary: Ecological Effects of A Proposed San Luis Drain Extension

    Science.gov (United States)

    Presser, Theresa S.; Luoma, Samuel N.

    2006-01-01

    Selenium discharges to the San Francisco Bay-Delta Estuary (Bay-Delta) could change significantly if federal and state agencies (1) approve an extension of the San Luis Drain to convey agricultural drainage from the western San Joaquin Valley to the North Bay (Suisun Bay, Carquinez Strait, and San Pablo Bay); (2) allow changes in flow patterns of the lower San Joaquin River and Bay-Delta while using an existing portion of the San Luis Drain to convey agricultural drainage to a tributary of the San Joaquin River; or (3) revise selenium criteria for the protection of aquatic life or issue criteria for the protection of wildlife. Understanding the biotransfer of selenium is essential to evaluating effects of selenium on Bay-Delta ecosystems. Confusion about selenium threats to fish and wildlife stem from (1) monitoring programs that do not address specific protocols necessary for an element that bioaccumulates; and (2) failure to consider the full complexity of the processes that result in selenium toxicity. Past studies show that predators are more at risk from selenium contamination than their prey, making it difficult to use traditional methods to predict risk from environmental concentrations alone. This report presents an approach to conceptualize and model the fate and effects of selenium under various load scenarios from the San Joaquin Valley. For each potential load, progressive forecasts show resulting (1) water-column concentration; (2) speciation; (3) transformation to particulate form; (4) particulate concentration; (5) bioaccumulation by invertebrates; (6) trophic transfer to predators; and (7) effects on those predators. Enough is known to establish a first-order understanding of relevant conditions, biological response, and ecological risks should selenium be discharged directly into the North Bay through a conveyance such as a proposed extension of the San Luis Drain. The approach presented here, the Bay-Delta selenium model, determines the mass, fate

  10. Change in the Magnitude of River Flooding in the United States, 1965-2015

    Science.gov (United States)

    This figure shows changes in the size and frequency of flooding events in rivers and streams in the United States between 1965 and 2015. Blue upward-pointing symbols show locations where floods have become larger; brown downward-pointing symbols show locations where floods have become smaller. Data were analyzed by Louise Slater and Gabriele Villarini at the University of Iowa. For more information: www.epa.gov/climatechange/science/indicators

  11. What is a Society? Gabriel Tarde’s Philosophy of Appropriations

    Directory of Open Access Journals (Sweden)

    José García Molina

    2011-03-01

    Full Text Available Hace apenas una década Gabriel Tarde era desconocido para la mayoría de profesores e investigadores de las ciencias sociales o la filosofía. Asistimos, en el nuevo milenio, a una multiplicación exponencial de las referencias a su pensamiento y obra. “El regreso de Tarde” propicia diferentes preguntas que obligan a análisis alejados de fáciles hagiografías, de abusivas apropiaciones o rechazos y de otros peligros comunes a toda exhumación de un corpus enterrado. Por todo ello, el presente artículo persigue dos objetivos. Primero, presentar esquemáticamente el sistema filosófico de Tarde. Su “ontologie de l’avoir”, la otra metafísica, propia de ciertos pensadores europeos de finales del siglo XIX, desemboca en un vitalismo que se opone a cualquier totalización o clausura física, biológica o social. La neo-monadología tardeana y sus derivaciones sociológicas se deducen de ciertas vías metafísicas sobre la naturaleza del universo, de los elementos que lo componen y de la perpetua acción que ejercen unos sobre otros. Ontología del tener, sostenida en un psicomorfismo y sociomorfismo universal, que sustituye a la tradicional ontología del ser y presenta una original forma de cartografía de la constitución de las sociedades. En segundo lugar, señalaremos algunas intuiciones acerca de los usos de Tarde. Su vuelta puede ser pensada como moda que rescata y consume “antiguos autores menores” alegando el agotamiento de los paradigmas hegemónicos clásicos; pero también como política de memoria y restitución de saberes sometidos/olvidados por el concurso de lógicas más poderosas. La pregunta más urgente es a nuestro juicio: ¿para qué sirve el renacido Tarde? Apuntamos apenas amagos de respuesta. Lejos de cerrar las preguntas pretendemos reabrirlas en la dirección de un trabajo más amplio y detenido que ya está en marcha.

  12. Criticism of the narrative works of Gabriel García Márquez in Serbian literary magazines

    Directory of Open Access Journals (Sweden)

    Vesna Z Dickov

    2014-12-01

    Full Text Available Since the Serbian translation of the novel One Hundred Years of Solitude appeared in 1973, the narrative works of Gabriel García Márquez have continued to interest Serbian critics. After an initial break with readers’ expectations, criticism of the magical realism and other aspects of the prose of García Márquez soon (from 1975 began to develop in Serbia, and intensified in the later seventies of the last century as well as at the end of the first decade of the 21st century, when a series of essays, reviews, articles and studies were published on the novels, stories, reportages, essays and memoirs of García Márquez, including his journalistic work. Half of the texts written by Serbian critics for literary journals came out in Belgrade, especially in Književna reč (The Literary Word, the most prolific authors being Radomir Ivanović and Branko Anđić. The judgment of Serbian critics, presented in the literary magazines, which was based frequently on the latest advances in narratology, genealogy and comparative literature, has contributed greatly to the shaping of readers’ expectations not only regarding Gabriel García Márquez’s prose but also new Latin American narrative in general.

  13. Gabriel Miró, Del vivir (1904 y su ruptura con la convención novelesca

    Directory of Open Access Journals (Sweden)

    Lozano Marco, Miguel Ángel

    2005-12-01

    Full Text Available I'm trying to analyze, with our new criteria, Del vivir, the first work recognized by Gabriel Miró as his, after repudiating his two previous novels. The proposal, documented, of the writing date allows venturing one hypothesis: the influence that Antonio Azorin could exercise over the young Miró. The novelistic model found in the Jose Martinez Ruiz work teaches him to disregard the argument in order to attend to the life, and allows him to conceive a character (whom we only know that his name is Sigüenza without neither physical features nor story, in order to emphasize its substance and moral nature.Pretendo analizar, con nuevos criterios, Del vivir, la primera obra que Gabriel Miró reconoce como suya después de repudiar sus dos novelas anteriores. La propuesta, documentada, de la fecha de escritura permite aventurar una hipótesis: la influencia que Antonio Azorín pudo ejercer sobre el joven Miró. El modelo novelístico que encuentra en la obra de José Martínez Ruiz le enseña a prescindir del argumento para atender a la vida, y le permite concebir un personaje (del que sólo sabemos que se llama Sigüenza sin rasgos físicos y sin historia, para destacar su sustancia y carácter moral.

  14. Demanda de irrigação da cultura da uva na Bacia do Rio São Francisco Irrigation demand for grape crop in San Francisco River Basin

    Directory of Open Access Journals (Sweden)

    Wallisson da S. Freitas

    2006-09-01

    Full Text Available Visando subsidiar o planejamento de projetos agrícolas para o dimensionamento de projetos de irrigação e a gestão de recursos hídricos, estimou-se e se espacializou a demanda de irrigação da videira (Vitis vinifera L., cv. Itália, na bacia do Rio São Francisco. Utilizaram-se séries históricas de dados de 81 estações climáticas distribuídas na bacia. Para cada estação calculou-se os valores, máximos diários e o total anual, da evapotranspiração de referência (ETo, da evapotranspiração da cultura (ETc, da demanda suplementar da cultura e da demanda suplementar de irrigação (este com eficiência de 70%. Com base nos resultados obtidos, concluiu-se que: (a a ETc máxima diária variou, em grande parte da bacia, de 4,5 a 5,7 mm d-1, tendo média anual de 943 mm; (b em média, a demanda anual suplementar da cultura foi 839,5 mm, equivalente a 103,5 mm inferior à ETc; (c o fato do sistema funcionar com 70% de eficiência, em vez de 90%, implica em acréscimo estimado de 18.808.755 m³ de água por ano, somente nas microrregiões de Juazeiro, BA e Petrolina, PE.The irrigation water demand of the grapevine (Vitis vinifera L. cv. Italy was estimated and spatialized in San Francisco River Basin, in order to subsidize the agricultural project planning and water resource management. Historical data series relative to 81 climatic stations distributed throughout the basin were used. The maximum daily values and the annual total values of the reference evapotranspiration (ETo, crop evapotranspiration (ETc, supplementary demand of the crop and the supplementary irrigation demand (70% efficiency were calculated for each station. According to the results, the following conclusions were drawn: (a in a large area of the basin, the maximum daily ETc varied from 4.5 to 5.7 mm d-1, with an annual mean of 943 mm; (b the supplementary annual demand of the crop averaged 839.5 mm, corresponding to 103.5 mm less than ETc; and (c the irrigation

  15. Rethinking Inclusion as Mundanity: Insights from an Experimental Bilingual Kindergarten Classe LSF at École Maternelle Gabriel Sajus in France

    Science.gov (United States)

    Valente, Joseph Michael

    2017-01-01

    In this article, I demonstrate how hybrid language practices allow for children to make use of their full linguistic repertoire in negotiating the social and communicative demands of the school environment (Axelrod in "Early Child Educ J," p 1-8, 2014). I argue that the unusual case of classe LSF and École Maternelle Gabriel Sajus…

  16. Gabriel Sánchez Espinosa, ed., Pruebas de imprenta. Estudios sobre la cultura editorial del libro en la España moderna y contemporánea

    Directory of Open Access Journals (Sweden)

    Alejandra Ulla Lorenzo

    2014-01-01

    Full Text Available Reseña de Gabriel Sánchez Espinosa, ed., Pruebas de imprenta. Estudios sobre la cultura editorial del libro en la España moderna y contemporánea, Iberoamericana / Vervuert, Madrid / Frankfurt am Main, 2013, 284 pp. ISBN: 9788484897637 (Iberoamericana, 9783954873074 (Vervuert.

  17. Gabriel Sánchez Espinosa, ed., Pruebas de imprenta. Estudios sobre la cultura editorial del libro en la España moderna y contemporánea

    OpenAIRE

    Alejandra Ulla Lorenzo

    2014-01-01

    Reseña de Gabriel Sánchez Espinosa, ed., Pruebas de imprenta. Estudios sobre la cultura editorial del libro en la España moderna y contemporánea, Iberoamericana / Vervuert, Madrid / Frankfurt am Main, 2013, 284 pp. ISBN: 9788484897637 (Iberoamericana), 9783954873074 (Vervuert).

  18. The Verbal Periphrasis ir a + Infinitive in the Narrative Texts by Gabriel García Márquez

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    Jasmina Markič

    2015-12-01

    Full Text Available This article deals with ir a + infinitive, one of the most frequent verbal periphrases in Spanish with temporal, aspectual and modal values. It presents the analysis of narrative texts written by the Colombian writer Gabriel García Márquez and emphasizes the expression of aspectual values of imminence of the event and the expression of future with the auxiliary verb in present replacing the simple future tense in Colombian Spanish corroborating, thus, the fact that in contemporary American Spanish the expression of futurity is in the process of transfer from a synthetic to an analytic form. However, these aspectual and temporal values are not always alone, frequently they merge with other mainly modal values which confer to this periphrasis additional expressive and stylistic uses.

  19. La religión del amor en la última narrativa de Gabriel García Márquez

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    Giobanna Patricia Buenahora Molina

    1998-05-01

    Full Text Available Gabriel García Márquez es un escritor con una profunda vocación religiosa, tal y como ha demostrado en su ya dilatada trayectoria novelística. Sus obras están llenas de mitos bíblicos, personajes legendarios, criaturas procedentes del Antiguo Testamento, vendedores de milagros, santos, predicadores de pelaje variopinto, sermoneros profesionales, ángeles destronados, sábanas santas, mujeres que suben al cielo en estado virginal, resurrecciones, etcétera. Faltaba por tanto uno de los temas más sugerentes con los que podía tropezarse el novelista colombiano: el amor entendido como una posesión demoníaca. Este es precisamente el tema desarrollado en su novela, Del amor y otros demonios.

  20. Archeology, biology, anthropology: human evolution according to Gabriel de Mortillet and John Lubbock (France, England c. 1860-1870).

    Science.gov (United States)

    Richard, Nathalie

    2012-01-01

    This essay compares the first evolutionary syntheses on human prehistory formulated by John Lubbock (1865) in Britain and Gabriel de Mortillet (1869-1883) in France, which both brought the question of human evolution in multidisciplinary light by borrowing tools from archaeology and ethnology rather than from biology. This paper shows that these syntheses displayed similarities as well as differences, and intends to give a comparative assessment of some intellectual and social characteristics of British and French nineteenth-century prehistoric archaeology. Lubbock's and Mortillet's syntheses relied heavily on archaeological collections but these were of different content and status. They stressed progress but they were also organized in accordance to different visions of evolution. Both were articulated from political and religious standpoints, but these standpoints were different in their content and tone.

  1. Individuo, Multitud y Cambio Social. Una aproximación a la Teoría Social de Gabriel Tarde

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    Sergio Tonkonoff

    2016-01-01

    Full Text Available The reading hypothesis that has guided this paper is that the work of Gabriel Tarde offers a solution to the individualism-holism alternative that still dominates the social sciences, because it tends to conceptualize the social as a third term that exceeds both the individual and society. The concept of the social here is the plural and heterogeneous field of interactions in which individuals, groups and social systems are produced, reproduced, transformed and eventually diluted. Supported by this hypothesis, and reconstructing Tarde’s conceptual syntax on the basis of it, we seek to clarify some fundamental elements of the theory of the individual outlined in various passages of his work. We also attempt to account for his ideas regarding the masses and the public, and we have proposed a re-reading of his concept of the multitude. Finally, we have tried to show some of the ethical-political consequences arising from that hypothesis and that syntax.

  2. Valences temporal tuning fork in novel One Hundred Years of Solitude by Gabriel García Márquez

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    Victoria BARAGA

    2013-01-01

    Full Text Available Class time is experiencing a particularly wide spread in different spheres of human manifestation: in science and art, religion and everyday life. During World Literature the time becomes subject to interest. Colombian writer Gabriel García Márquez in his creation, but especially in the novel One Hundred Years of Solitude, with great talent show time category. In the present investigation, based on the content quality of time and in the figurative image of the movement, we deduced the most representative forms of temporal in garciamarquezian novel. We disclose specifics forms of macondiene time: Time of sacred history, time of eternal return, historical time and Apocalyptic time. Originality of macondian time consists of temporal relationship between these forms, the magic of virtualization game and their updates. And while macondian prodigious time impresses just by strength revealing of the imaginary area.

  3. Rezension zu: Gabriele Winker, Nina Degele: Intersektionalität. Zur Analyse sozialer Ungleichheiten. Bielefeld: transcript Verlag 2009.

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    Heike Kahlert

    2010-02-01

    Full Text Available Gabriele Winker und Nina Degele legen mit ihrer kompakten Monographie erstmals für den deutschsprachigen Raum eine in Theorie, Methodologie und Empirie stringente eigenständige Abhandlung zur intersektionalen Analyse von sozialen Ungleichheiten vor. Das in jeder Hinsicht übersichtlich gestaltete Buch besticht durch eine begründete Argumentation, insbesondere in Bezug auf die theoretischen Vorentscheidungen, durch eine klare Gliederung und vor allem durch die Schritt für Schritt nachvollziehbare Umsetzung des vorgeschlagenen theoretischen und methodologischen Rahmens in die empirische Sozialforschung. Es ist daher uneingeschränkt empfehlenswert, auch für den Einsatz in der Hochschullehre, und es ist von hohem Anregungspotential für die wissenschaftliche Weiterentwicklung intersektionaler Analysen von sozialen Ungleichheiten.

  4. Gabriel de Aristizábal y su viaje a Constantinopla en el año 1784

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    González Castrillo, Ricardo

    2005-04-01

    Full Text Available Estudio del manuscrito 11-1051 de la Real Biblioteca de Madrid que contiene el relato de la embajada de buena voluntad enviada a Constantinopla por el monarca Carlos III en 1784, con el fin de afianzar los incipientes lazos establecidos entre España y Turquía, a raíz del Tratado de Amistad y Comercio suscrito dos años antes. La expedición, portadora de ricos presentes para el soberano otomano, estaba integrada por cuatro navios al mando de Gabriel de Aristizábal, cuya biografía se incorpora, extraída de un documento ajeno al manuscrito. La derrota seguida y las vivencias de los expedicionarios en tierras turcas, constituyen el núcleo del relato.…

  5. A poet with a painter's eye : aspects of devotion and desire in Dante Gabriel Rossetti's double works

    OpenAIRE

    Vicente Henrique Brückmann Saldanha

    2016-01-01

    A presente tese visa analisar um grupo específico de poemas de Dante Gabriel Rossetti (os chamados poemas de imagens), e pinturas e gravuras de sua autoria, a fim de mostrar como a ligação entre desejo físico e devoção espiritual ilustra a expressão de Rossetti como artista, e como ela ajuda a colocá-lo como uma figura de transição no sistema literário britânico. O desejo físico e a devoção espiritual são duas forças antagônicas que ocupam um espaço predominante na literatura e na imaginação ...

  6. San Pascual (1989) n. 272

    OpenAIRE

    Pérez, María Dolores, O.S.C. (Directora)

    1989-01-01

    Editorial. Entrevista madre abadesa. Ofrenda. San Pascual tercer centenario de la canonizacion y cuarto de su muerte. San Pascual, un Santo universal. Pascual Baylón, poeta. grupo Scout Sant Pasqual. Aportaciones, donativos, limosnas, benefactores. Boletin informativo del templo de San Pascual de villareal.

  7. Incidência da tuberculose em indígenas do município de São Gabriel da Cachoeira, AM Incidence of tuberculosis among indigenous people in the municipality of São Gabriel Cachoeira, AM

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    Amantino Camilo Machado Filho

    2008-06-01

    Full Text Available A partir de 1999, no município de São Gabriel da Cachoeira, Amazonas, foi implementado pelo Ministério da Saúde o Programa de Controle de Tuberculose. Com o objetivo de verificar se a estratégia promoveu mudanças na incidência da tuberculose entre indígenas daquela região, foram estudados, retrospectivamente, os registros médicos de 768 pacientes, divididos em dois grupos. Constituíram o Grupo I os casos tratados entre 1994 e 1998 e o Grupo II os pacientes tratados entre 1999 e 2003. A taxa anual média de incidência foi de 239 e 284 casos de todas as formas de tuberculose por 100.000 habitantes, houve predomínio da forma pulmonar, com 88,2% e 85,9% dos casos e índices de cura elevados, representando 97,2% e 91,5%, respectivamente nos Grupos I e II. Não houve impacto na redução da taxa de incidência da doença, na comparação entre os dois períodos citados, evidenciando que persiste alto risco de aquisição de tuberculose entre indígenas daquela região.Starting in 1999, the Ministry of Health implemented its Tuberculosis Control Program in the municipality of São Gabriel da Cachoeira, State of Amazonas. With the aim of investigating whether this strategy had promoted changes in tuberculosis incidence among indigenous people in that area, the medical records of 768 patients were studied retrospectively, divided in two groups. Group I consisted of cases treated between 1994 and 1998 and Group II consisted of cases treated between 1999 and 2003. The mean annual incidence rates were, respectively, 239 and 284 cases of all tuberculosis forms per 100,000 inhabitants. The pulmonary form predominated, accounting for 88.2% and 85.9% of the cases, and the cure rate was high (97.2% and 91.5%, respectively in Groups I and II. There was no impact with regard to reducing the incidence rate of this disease, thus showing that a high risk of contracting tuberculosis persists among indigenous people in that area.

  8. Arte e interpretação da realidade em Gabriel García Márquez e Fernando Botero

    OpenAIRE

    Ana Paula Maggioni

    2007-01-01

    Partindo da noção de interdisciplinaridade, este trabalho, realizado na área da literatura comparada, centra-se na relação entre o escritor Gabriel García Márquez e o pintor Fernando Botero, com ênfase na interpretação da realidade colombiana presente nas obras desses artistas. Os quadros de Botero – O Capitão, Retrato Oficial da Junta Militar, O Jogador de Cartas, A Casa de Amanda Ramírez, A Rua e Cena Familiar – são analisados em comparação à obra Cem anos de solidão, de Gabriel García Márq...

  9. The Gabriel monad and the localization of R-module category%Gabriel单子与模范畴的局部化

    Institute of Scientific and Technical Information of China (English)

    刘洋; 王正萍; 许庆兵

    2014-01-01

    A Gabriel monad is defined as the idempotent monad to characterize the quotient category and localization of R-module category, and prove that the Gabriel monad induces an equivalence between its image and coimage, its image is the localization category which is equivalent to a Kleisli category;its coimage is the quotient category which is equiv-alent to a Eilengerg-Moore category.%通过定义Gabriel单子来刻画模范畴的商范畴与局部化范畴,证明了Gabriel单子诱导的像和余像是等价的;其像为模范畴的局部化范畴,该局部化范畴等价于Gabriel单子确定的Kleisli范畴;其余像为模范畴的商范畴,该商范畴等价于Eilengerg-Moore范畴。

  10. Colorado River Sewer System Joint Venture to Upgrade Wastewater System

    Science.gov (United States)

    SAN FRANCISCO -Today, the Colorado River Sewer System Joint Venture, located in Parker, Ariz. entered into an agreement with the EPA to upgrade their wastewater treatment system to meet stringent water quality standards. The cost of the upgrade is ap

  11. Projeto Amazonas: atenção em saúde bucal nas comunidades ribeirinhas de São Gabriel da Cachoeira – AM

    OpenAIRE

    Men Martins, Christine; Barreto Soares, Gabriella [UNESP; Ferro Alves, Márcio [UNESP; Santos Bonfietti, Luiz Henrique [UNESP; João Eduardo GOMES FILHO; Ísper Garbin, Artênio José [UNESP

    2015-01-01

    The Amazon Project is a civic and social action, nonprofit and performed by voluntary action of professionals. Humanitarian missions are conducted in this project in medical, dental, preventive and social context by the indigenous peoples of the Amazon region. Thus, the aim of this work is to report the dentists’ participation experience in this project and the indigenous oral health condition which is opposed to a hypnotic setting of natural beauty. Sao Gabriel da Cachoeira, situated in the ...

  12. Gabriel Morón, un socialista crítico ante la colaboración con la dictadura de Primo de Rivera

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    Rafael Quirosa-Cheyrouze y Muñoz

    2010-01-01

    Full Text Available Este artículo estudia las posiciones críticas mantenidas por Gabriel Morón en el seno del PSOE en los últimos años de la Dictadura de Primo de Rivera. Así, tras presentar al líder obrero cordobés, se analiza su participación en el XII Congreso, celebrado en el verano de 1928, y, sobre todo, el contenido de su libro El Partido Socialista ante la realidad política de España, publicado un año después. Como se puede comprobar en estas actividades, Morón fue uno de los dirigentes que más se destacó por su oposición a la línea de colaboración que la dirección del partido mantenía respecto al régimen dictatorial.Palabras Clave: socialismo español, Dictadura de Primo de Rivera, Gabriel Morón, historia política________________________________Abstract: This article studies the critical positions supported by Gabriel Morón in the PSOE in the last years of the Dictatorship of Primo de Rivera. This way, after presenting the cordovan working leader, we analyze his participation in the Congress XII celebrated in the summer of 1928, and, especially, the content of his book The Socialist Party before the political reality of Spain, published one year later. As we can verify in these activities, Moron was one of the most outstanding leaders for his opposition to the line of collaboration that the direction of the party had with the dictatorial regime.Keywords: Spanish socialism, Dictatorship of Primo of Rivera, Gabriel Morón, political history

  13. Gabriel Morón, un socialista crítico ante la colaboración con la dictadura de Primo de Rivera

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    Rafael Quirosa-Cheyrouze y Muñoz

    2011-01-01

    Full Text Available Este artículo estudia las posiciones críticas mantenidas por Gabriel Morón en el seno del PSOE en los últimos años de la Dictadura de Primo de Rivera. Así, tras presentar al líder obrero cordobés, se analiza su participación en el XII Congreso, celebrado en el verano de 1928, y, sobre todo, el contenido de su libro El Partido Socialista ante la realidad política de España, publicado un año después. Como se puede comprobar en estas actividades, Morón fue uno de los dirigentes que más se destacó por su oposición a la línea de colaboración que la dirección del partido mantenía respecto al régimen dictatorial.Palabras Clave: socialismo español, Dictadura de Primo de Rivera, Gabriel Morón, historia política________________________________Abstract: This article studies the critical positions supported by Gabriel Morón in the PSOE in the last years of the Dictatorship of Primo de Rivera. This way, after presenting the cordovan working leader, we analyze his participation in the Congress XII celebrated in the summer of 1928, and, especially, the content of his book The Socialist Party before the political reality of Spain, published one year later. As we can verify in these activities, Moron was one of the most outstanding leaders for his opposition to the line of collaboration that the direction of the party had with the dictatorial regime.Keywords: Spanish socialism, Dictatorship of Primo of Rivera, Gabriel Morón, political history

  14. Fronteiras étnicas nos repertórios musicais das 'festas de santo' em São Gabriel da Cachoeira (alto Rio Negro, AM

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    Líliam Cristina da Silva Barros

    Full Text Available Este artigo tem como objetivo demonstrar os mecanismos através dos quais índios em situação de contato, na zona urbana de São Gabriel da Cachoeira, manifestam sua pertença étnica. Em meio ao contexto das festas de santo, repertórios musicais evidenciam as fronteiras étnicas valendo-se da língua como principal sinal diacrítico de identidade.

  15. 75 FR 55975 - Safety Zone; San Diego Harbor Shark Fest Swim; San Diego Bay, San Diego, CA

    Science.gov (United States)

    2010-09-15

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego Harbor Shark Fest Swim; San Diego Bay, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone upon the navigable waters of the San Diego Bay, San Diego, CA, in support...

  16. Initial river test of a monostatic RiverSonde streamflow measurement system

    Science.gov (United States)

    Teague, C.C.; Barrick, D.E.; Lilleboe, P.M.; Cheng, R.T.; ,

    2003-01-01

    A field experiment was conducted on May 7-8, 2002 using a CODAR RiverSonde UHF radar system at Vernalis, California on the San Joaquin River. The monostatic radar configuration on one bank of the river, with the antennas looking both upriver and downriver, provided very high-quality data. Estimates of both along-river and cross-river surface current were generated using several models, including one based on normal-mode analysis. Along-river surface velocities ranged from about 0.6 m/s at the river banks to about 1.0 m/s near the middle of the river. Average cross-river surface velocities were 0.02 m/s or less.

  17. Dante Gabriel Rossetti's Pre-Raphaelites Beginnings: “Mary’s Girlhood” e The Girlhood of Mary Virgin

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    Chiara Moriconi

    2012-12-01

    Full Text Available Right from the beginnings of Dante Gabriel Rossetti’s career, his most striking quality lies in his deep commitment to a continual interrelation between the arts of poetry and of painting. This essay aims at revealing the strategies applied to the intersemiotic process taking place between Rossetti’s first Pre-raphaelite canvas, The Girlhood of Mary Virgin, and the two sonnets written to ‘illustrate’ it. To better examine the shift between different media and Rossetti’s own appraisal of such a translating process, reference has been made to some of the great names of the contemporary debate about intersemiotic translation, such as Greimas, Eco and Jakobson. By applying such modern tools of intersemiotic analysis to the artist’s first double work of art it will eventually be clear how Rossetti’s Pre-raphaelite phase is anything but an immature debut in the Victorian artistic scene. Many of the features of his early career are in fact to be found as faithfully maintained in the more complex development of his maturer art. This essay will show how The Girlhood of Mary Virgin and “Mary’s Girlhood” are to be considered as a true manifesto of Rossetti’s entire career and of his appraisal of the relation between the sister arts.

  18. Perspectivas temporales y aspectuales en las obras narrativas de Gabriel García Márquez

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    Jasmina Markič

    1998-12-01

    Full Text Available En este ártfculo se presenta el uso de algunos recursos lingüísticos que sirven para señalar valores temporales y aspectuales en español con fines narrativos y estilísticos en dos obras de Gabriel García Márquez: en su primera novela La Hojarasca y en su novela más conocida Cien años de  soledad. Marco lingüístico - teórico: Las perspectivas temporales y aspectuales en español se indican con varios recursos lingüísticos. Los más conocidos son los tradicionalmente llamados tiempos verbales que, debido a la confusión a la que se presta el término tiempo, es mejor denominar paradigmas verbales. El término es más adecuado ya que estas formas verbales (paradigmas no sirven únicamente para expresar el tiempo sino también otras perspectivas (aspectuales, modales, estilísticas, pragmáticas, etc. Además de los mencionados paradigmas verbales hay una serie de construcciones verbales denominadas perífrasis verbales que sirven también para indicar valores temporales y aspectuales.

  19. Microorganisms Associated With Pneumonia in Children Emerging Countries: The GABRIEL Pneumonia Multicenter, Prospective, Case-Control Study.

    Science.gov (United States)

    Bénet, Thomas; Sánchez Picot, Valentina; Messaoudi, Mélina; Chou, Monidarin; Eap, Tekchheng; Wang, Jianwei; Shen, Kunling; Pape, Jean-William; Rouzier, Vanessa; Awasthi, Shally; Pandey, Nitin; Bavdekar, Ashish; Sanghavi, Sonali; Robinson, Annick; Rakoto-Andrianarivelo, Mala; Sylla, Maryam; Diallo, Souleymane; Nymadawa, Pagbajabyn; Naranbat, Nymadawaagiin; Russomando, Graciela; Basualdo, Wilma; Komurian-Pradel, Florence; Endtz, Hubert; Vanhems, Philippe; Paranhos-Baccalà, Gláucia

    2017-06-12

    Pneumonia, the leading infectious cause of child mortality globally, mainly afflicts developing countries. This prospective observational study aimed to assess the microorganisms associated with pneumonia in children aged emerging countries. A multicenter, case-control study by the GABRIEL (Global Approach to Biological Research, Infectious diseases and Epidemics in Low-income countries) network was conducted between 2010 and 2014 in Cambodia, China, Haiti, India (2 sites), Madagascar, Mali, Mongolia, and Paraguay. Cases were hospitalized children with radiologically confirmed pneumonia; controls were children from the same setting without any features suggestive of pneumonia. Nasopharyngeal swabs were collected from all subjects; 19 viruses and 5 bacteria were identified by reverse-transcription polymerase chain reaction. Associations between microorganisms and pneumonia were quantified by calculating the adjusted population attributable fraction (aPAF) after multivariate logistic regression analysis adjusted for sex, age, time period, other pathogens, and site. Overall, 888 cases and 870 controls were analyzed; ≥1 microorganism was detected in respiratory samples in 93.0% of cases and 74.4% of controls (P emerging countries. Increasing S. pneumoniae vaccination coverage may substantially reduce the burden of pneumonia among children in developing countries.

  20. Dominação e indiferença na teoria crítica de Gabriel Cohn

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    José Maurício Domingues

    2011-09-01

    Full Text Available Dans cet article, on reconstitue la trajectoire théorique de Gabriel Cohn, dont l'oeuvre peut être partagée grosso modo en deux phases. Dans la première, sous l'influence d'Adorno et de Weber en particulier, la modernité est vue sous l'angle de la domination et d'une tendance à la construction de systèmes inclusifs par l'oppression. Dans la seconde, une fois conservés ces fondements, la notion de "pluralisme" et d'indifférence, à partir d'une lecture critique de l'oeuvre de Luhmann surtout, est envisagée comme formant un nouveau modèle de civilisation. Cohn devient ainsi une référence fondamentale du point de vue théorique dans la compréhension de la modernité à ses débuts et dans sa phase actuelle.

  1. Structure and mechanics of the San Andreas-San Gregorio fault junction, San Francisco, California

    Science.gov (United States)

    Parsons, Tom; Bruns, Terry R.; Sliter, Ray

    2005-01-01

    The right-lateral San Gregorio and San Andreas faults meet west of the Golden Gate near San Francisco. Coincident seismic reflection and refraction profiling across the San Gregorio and San Andreas faults south of their junction shows the crust between them to have formed shallow extensional basins that are dissected by parallel strike-slip faults. We employ a regional finite element model to investigate the long-term consequences of the fault geometry. Over the course of 2-3 m.y. of slip on the San Andreas-San Gregorio fault system, elongated extensional basins are predicted to form between the two faults. An additional consequence of the fault geometry is that the San Andreas fault is expected to have migrated eastward relative to the San Gregorio fault. We thus propose a model of eastward stepping right-lateral fault formation to explain the observed multiple fault strands and depositional basins. The current manifestation of this process might be the observed transfer of slip from the San Andreas fault east to the Golden Gate fault.

  2. Hydrological conditions and evaluation of sustainable groundwater use in the Sierra Vista Subwatershed, Upper San Pedro Basin, southeastern Arizona

    Science.gov (United States)

    Gungle, Bruce; Callegary, James B.; Paretti, Nicholas V.; Kennedy, Jeffrey R.; Eastoe, Christopher J.; Turner, Dale S.; Dickinson, Jesse E.; Levick, Lainie R.; Sugg, Zachary P.

    2016-08-18

    This study assessed progress toward achieving sustainable groundwater use in the Sierra Vista Subwatershed of the Upper San Pedro Basin, Arizona, through evaluation of 14 indicators of sustainable use. Sustainable use of groundwater in the Sierra Vista Subwatershed requires, at a minimum, a stable rate of groundwater discharge to, and thus base flow in, the San Pedro River. Many of the 14 indicators are therefore related to long-term or short-term effects on base flow and provide us with a means to evaluate groundwater discharge to and base flow in the San Pedro River. The indicators were based primarily on 10 to 20 years of data monitoring in the subwatershed, ending in 2012, and included subwatershedwide indicators, riparian-system indicators, San Pedro River indicators, and springs indicators.

  3. Ecological Impact of LAN: San Pedro Riparian National Conservation Area

    Science.gov (United States)

    Craine, Eric Richard; Craine, Brian L.

    2015-08-01

    The San Pedro River in Southeastern Arizona is home to nearly 45% of the 900 total species of birds in the United States; millions of songbirds migrate though this unique flyway every year. As the last undammed river in the Southwest, it has been called one of the “last great places” in the US. Human activity has had striking and highly visible impacts on the San Pedro River. As a result, and to help preserve and conserve the area, much of the region has been designated the San Pedro Riparian National Conservation Area (SPRNCA). Attention has been directed to impacts of population, water depletion, and border fence barriers on the riparian environment. To date, there has been little recognition that light at night (LAN), evolving with the increased local population, could have moderating influences on the area. STEM Laboratory has pioneered techniques of coordinated airborne and ground based measurements of light at night, and has undertaken a program of characterizing LAN in this region. We conducted the first aerial baseline surveys of sky brightness in 2012. Geographic Information Systems (GIS) shapefiles allow comparison and correlation of various biological databases with the LAN data. The goal is to better understand how increased dissemination of night time lighting impacts the distributions, behavior, and life cycles of biota on this ecosystem. We discuss the baseline measurements, current data collection programs, and some of the implications for specific biological systems.

  4. Crustal structure of the coastal and marine San Francisco Bay region, California

    Science.gov (United States)

    Parsons, Tom

    2002-01-01

    As of the time of this writing, the San Francisco Bay region is home to about 6.8 million people, ranking fifth among population centers in the United States. Most of these people live on the coastal lands along San Francisco Bay, the Sacramento River delta, and the Pacific coast. The region straddles the tectonic boundary between the Pacific and North American Plates and is crossed by several strands of the San Andreas Fault system. These faults, which are stressed by about 4 cm of relative plate motion each year, pose an obvious seismic hazard.

  5. Tuberculose na população indígena de São Gabriel da Cachoeira, Amazonas, Brasil Tuberculosis among the indian population in São Gabriel da Cachoeira, Amazonas State, Brazil

    Directory of Open Access Journals (Sweden)

    Antônio Levino

    2007-07-01

    Full Text Available O estudo descreve a situação da tuberculose no Município de São Gabriel da Cachoeira, Estado do Amazonas, Brasil, no período de 1997 a 2002. Este município de população predominantemente indígena constitui uma importante noso-área da Amazônia para o problema da tuberculose, cuja magnitude se expressa por intermédio do coeficiente 2,4 vezes mais elevado que a média estadual e até quatro vezes mais que a média nacional. Análises estatísticas utilizadas para avaliar a tendência em relação à associação com a idade, o sexo e a forma clínica revelaram diferenças no comportamento da endemia, quando comparados os coeficientes de incidência entre os casos de procedência urbana e rural. As taxas padronizadas mostraram a população masculina com uma incidência mais elevada que a feminina nas duas áreas de residência. A faixa etária mais atingida foi acima de 50 anos, porém a proporção de menores de 15 anos se mostrou acima dos valores esperados na população geral do país, além de apresentar diferentes níveis de gravidade nas subáreas rurais estudadas. Os achados indicam que esta situação pode ser explicada pelas desigualdades, sobretudo, relativas à acessibilidade aos serviços de saúde que, contraditoriamente, parecem menos resolutivos na área urbana.This study describes the tuberculosis situation in São Gabriel da Cachoeira, Amazonas State, Brazil, from 1997 to 2002. The county, which has a predominantly Indian population, is a relevant tuberculosis area in Amazonas, since the infection rate is 2.4 to 4 times that of the overall State and national rates. The statistical analyses used to assess its association with age, gender, and clinical form showed differences in the endemic behavior, comparing the urban and rural incidence rates. Males had higher standardized incidence rates than females in both the urban and rural areas. The most heavily affected age group was greater than 50 years, but the rate among

  6. San Cástulo

    OpenAIRE

    Jaramillo, Tania

    2014-01-01

    Porque no te acercas y nos entendemos, nos vamos cayendo por el lucro de la colonia, nos perdemos en la esquina de san Cástulo y nos vamos volando a Eleuterio, en una noche, que la luna nos vigile, que nos aguarde, que retrase el día, y la gente permanezca dormida o despierta pero temerosa de la noche, de los policías y los delincuentes, de los violadores y de nosotros, de la vida nocturna, de ese lugar oscuro en alguna parte, donde nos convertimos y aullamos.

  7. San Cástulo

    OpenAIRE

    Jaramillo, Tania

    2014-01-01

    Porque no te acercas y nos entendemos, nos vamos cayendo por el lucro de la colonia, nos perdemos en la esquina de san Cástulo y nos vamos volando a Eleuterio, en una noche, que la luna nos vigile, que nos aguarde, que retrase el día, y la gente permanezca dormida o despierta pero temerosa de la noche, de los policías y los delincuentes, de los violadores y de nosotros, de la vida nocturna, de ese lugar oscuro en alguna parte, donde nos convertimos y aullamos.

  8. Coma blisters sans coma.

    Science.gov (United States)

    Heinisch, Silke; Loosemore, Michael; Cusack, Carrie A; Allen, Herbert B

    2012-09-01

    Coma blisters (CBs) are self-limited lesions that occur in regions of pressure during unconscious states classically induced by barbiturates. We report a case of CBs sans coma that were histologically confirmed in a 41-year-old woman who developed multiple tense abdominal bullae with surrounding erythema following a transatlantic flight. Interestingly, the patient was fully conscious and denied medication use or history of medical conditions. A clinical diagnosis of CBs was confirmed by histopathologic findings of eccrine gland necrosis, a hallmark of these bulIous lesions.

  9. San Diego's Capital Planning Process

    Science.gov (United States)

    Lytton, Michael

    2009-01-01

    This article describes San Diego's capital planning process. As part of its capital planning process, the San Diego Unified School District has developed a systematic analysis of functional quality at each of its school sites. The advantage of this approach is that it seeks to develop and apply quantifiable metrics and standards for the more…

  10. Los Angeles og San Francisco

    DEFF Research Database (Denmark)

    Ørstrup, Finn Rude

    1998-01-01

    Kompendium udarbejdet til en studierejse til Los Angeles og San Francisco april-maj 1998 Kunstakademiets Arkitektskole, Institut 3H......Kompendium udarbejdet til en studierejse til Los Angeles og San Francisco april-maj 1998 Kunstakademiets Arkitektskole, Institut 3H...

  11. Homosexuality as (AntiIllness: Oscar Wilde's The Picture of Dorian Gray and Gabriele D'Annunzio's Il Piacere

    Directory of Open Access Journals (Sweden)

    Edward S. Brinkley

    1998-01-01

    Full Text Available This article treats Oscar Wilde's The Picture of Dorian Gray as culturally antagonistic but also as culturally conservative: Dorian's liminal position as a male who knows —who has experienced sexual contact with other males—is linked in the text both to a position of cultural/epistemological superiority (the "Greek" sexual act constructed as index of canonical mastery, back to Greek texts and artwork and to a position of disease and dis-figurement. The latter association, read by other commentators particularly in the final pages as punishment for narcissism, hedonism, or homosexual activity, is here glossed as an accusation against Victorian injunctions against same sex sexual activity constitutive of homosexual identity: the marks of disease accrue in the sphere of cultural representation, which then mark and mar the individual body. Dorian Gray as a text then launches a kind of "homosexual panic" on the part of subsequent writers in "decadent modernism," notably Gabriele D'Annunzio, whose Il Piacere attempts to re-valorize the ephebe as the bearer of canon—and must now do so as an avowedly heterosexual male, but in the context of the danger of the dandy: the Wilde figure as "Humphrey Heathfield" must be introduced in order to have been experienced, even if only in disgust. D'Annunzio's turn toward fascist politics is not accidental in this respect: the literary phenomenon of "fascist modernism" appears to hew very closely to the fear of the cultural ascendancy of the dandy, often read in such texts as a subcultural homosexual male, who must be both experienced and extinguished.

  12. Solar sanitary system (SOL-SAN)

    Energy Technology Data Exchange (ETDEWEB)

    Cobb, J.C.

    1996-11-01

    Ordinary composting toilets, because of cooling by evaporation, do not heat the product (humus) hot enough to kill all pathogenic viruses, bacteria, or parasite eggs and cysts. The SOL-SAN system uses direct radiation to pasteurize incoming river water for drinking and also, separately, to pasteurize and dry the humus, and to pasteurize the effluent gray/brown water. Work is in progress on simple fool-proof methods of insuring that the water will not flow out unless it has been pasteurized. Heat exchangers recapture the heat from these very hot pasteurized liquids, thereby warming more in-coming water for washing, which is important for preventing transmission of pathogenic microbes. When pasteurized, the humus and gray/brown water can safely be recycled to fertilize and water the family vegetable garden. Thus no sewer would be needed, and the vegetables or fish would grow well. Widespread use of the SOL-SAN system would save water and nutrients, reduce the prevalence of infectious diseases, improve the nutrition and vitality of the population, and save the large fraction of human food now consumed by parasites.

  13. Doce cuentos peregrinos o el espacio de la pérdida: Gabriel García Márquez en el laberinto europeo

    OpenAIRE

    Cano Pérez, Mercedes

    2012-01-01

    En Doce cuentos peregrinos (1992) Gabriel García Márquez atraca en territorio europeo para dejar allí en calidad de náufragos a sus protagonistas, latinoamericanos que vagan por un continente lejano en todos los sentidos. El presente artículo pretende analizar los mecanismos constructivos de la espacialidad europea y americana (la primera como vivida, la segunda como rememoración nostálgica) en estos doce relatos. Al salir del ámbito cerrado y perfecto de Macondo, el escritor colombiano acced...

  14. De Mallorca a Nápoles, Lleida y Roma: los viajes del canónigo Gabriel Cerdà (1450-1491.

    Directory of Open Access Journals (Sweden)

    Albert Cassanyes Roig

    2016-12-01

    Full Text Available Among the different groups of medieval travellers, ecclesiastics were one of the most active. Fifteenth-century Majorcan canons, too, crossed the seas to reach their destinations. This paper considers the voyages of one of them, Gabriel Cerdà, who went to the most important centres of power of the Crown of Aragon (Naples and Catalonia and of the Church (Rome, although he also frequented Lleida in order to study and to hold another canonry in its cathedral. His case is a paradigm of Majorcan canons’ performance related to their geographical mobility.

  15. Causas e formas de corrosão na unidade de recuperação de enxofre da Refinaria Gabriel Passos (REGAP/PETROBRAS)

    OpenAIRE

    Eliana Moreira Guimaraes

    2006-01-01

    Este trabalho visa contribuir para a determinação das formas e identificação das causas de corrosão do aço carbono, material construtivo empregado em grande parte dos equipamentos da Unidade de Recuperação de Enxofre (URE) da Refinaria Gabriel Passos (REGAP/PETROBRAS). Os derivados resultantes do refino do petróleo passam por processos de tratamento para atender às especificações relacionadas à corrosividade, teor de enxofre, acidez, odor, formação de compostos poluentes, alteração de cor,...

  16. Nuevos documentos sobre Gabriel José de Ovalle y algunas consideraciones acerca de la apreciación de la pintura novohispana

    OpenAIRE

    Clara Bargellini

    2001-01-01

    El hallazgo de un grupo de documentos acerca del pintor novohispano Gabriel José de Ovalle, activo en Zacatecas y Durango hacia mediados del siglo xviii, proporciona información nueva sobre el artista y el desarrollo de su carrera, pero también sugiere consideraciones acerca de la valoración de la pintura en la historiografía y en la propia época virreinal. Ya que los documentos informan que Ovalle había llegado a Zacatecas desde la ciudad de México, se revisan los juicios hasta ahora vertido...

  17. Robert Castel, Gabriel Kessler, Denis Merklen, Numa Murard (2013: Individuación, Precariedad, Inseguridad: ¿desinstitucionalización del Presente? Buenos Aires, Paidós

    Directory of Open Access Journals (Sweden)

    Maximiliano E. Korstanje

    2014-09-01

    Full Text Available Un libro editado en cinco secciones, cada una de ellas escritas por reconocidos sociólogos quienes se convocaron el 01 de Marzo de 2011 en una conferencia organizada por la Casa Argentina en París. Robert Castel, Denis Merklen, Numa Murard y Gabriel Kessler focalizan en el tema de la vulnerabilidad ciudadana del presente, las relaciones productivas en la modernidad y el rol del riesgo en la vida social de las personas entre los temas más importantes.

  18. Gabriel del Barco: la influencia de un pintor español en la azulejería portuguesa (1669-1701

    Directory of Open Access Journals (Sweden)

    Salema de Carvalho, Maria do Rosário

    2011-09-01

    Full Text Available Gabriel del Barco was one of the most important tile painters working in Portugal during the transition from the 17th to the 18th centuries. This period is considered to be one of preparation preceding the great, emblematic era of Portuguese tile production during the 18th century. Spanish born, Gabriel del Barco arrived in Lisbon when he was about twenty, and established himself there first as a painter of ceilings and later, as a tile painter. Articles on aspects of his life and work (relatively well-known, have been published, but they have provided only a fragmentary vision of this artist. Thus, this study unites numerous dispersed materials with the addition of heretofore-unknown documents concerning the painter. The author also offers a re-evaluation of the tiles painted by Barco by analyzing his signed tile panels, assisted by the use of new technologies.

    Gabriel del Barco fue uno de los pintores de azulejos más significativos de cuantos trabajaron en Portugal a caballo de los siglos XVII y XVIII, momento en el que se estaba gestando una producción azulejera histórica para la caracterización de un arte que, con razón, ha sido identificado como uno de los más emblemáticos del patrimonio artístico portugués. Español de nacimiento, Gabriel del Barco llegó a Lisboa con casi veinte años. Se estableció en la ciudad, primero como pintor de techos y, más tarde, de azulejos. Su vida y obra, relativamente bien conocidas, han sido objeto de interés por parte de la historiografía portuguesa, que le ha dedicado algunos estudios, unos más enjundiosos que otros, pero, al cabo, todos ellos fragmentarios. El presente artículo pretende reunir las numerosas informaciones dispersas existentes sobre el pintor junto con datos desconocidos hasta nuestros días. Además de dar noticia de esa nueva documentación que ahora ve la luz, se procederá a hacer una reapreciación de la producción de Barco a

  19. The impact of 90 years of drainage works on some chemical properties of raised peat bog organic soils - case study from valley of the Upper San river in Polish Bieszczady Mts. (Eastern Carpathians).

    Science.gov (United States)

    Stolarczyk, Mateusz

    2016-04-01

    Wetland ecosystems, including raised peat bogs are characterized by a specific water conditions and unique vegetation, which makes peatland highly important habitats due to protection of biodiversity. Transformation of peat bog areas is particularly related to changes in the environment e.g. according to reclamation works. Drainage of peatlands is directly associated to the decrease of groundwater levels and lead to a number of changes in the chemical and physical properties of peat material, included contents of exchangeable cations in the surface layers of peat soils in the decession phase of peat development and release above compounds from the soil to ground or surface waters. The aim of the research was to determine the impact of extended drainage works on chemical composition of sorption complex of raised peat bog organic soils and identification the potential environmental effects of alkaline cations leaching to the surface waters. Research was carried out on the peat bogs located in the Upper San valley in Polish Bieszczady Mts. (Eastern Carpathians). Soil samples used in this study were collected from 3 soil profiles in 10 or 20 cm intervals to the approximately 130 cm depth. Laboratory analyses included determination of basic properties of organic material such as the degree of peat decomposition, ash content, soil pH and carbon, hydrogen, nitrogen concentrations. Additionally the amount of alkaline cations, exchangeable and extractable acidity was determined. Furthermore, the degree of saturation of the sorption complex with alkaline cations (V) and cation exchange capacity (CEC) are calculated. In order to evaluate the impact of the examined peat bog to the environment, also water samples were collected and ions composition was measured. The obtained results show that studied organic soils are oligotrophic and strongly acidic. In the case of organic material related to decession phase of peat development, as a result of the lengthy drainage works

  20. 78 FR 39610 - Safety Zone; Big Bay Boom, San Diego Bay; San Diego, CA

    Science.gov (United States)

    2013-07-02

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Big Bay Boom, San Diego Bay; San Diego, CA... temporary safety zones upon the navigable waters of the San Diego Bay for the annual Port of San Diego... Sector San Diego, Coast Guard; telephone 619-278-7261, email d11marineeventssd@uscg.mil . If you have...

  1. 75 FR 38412 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

    Science.gov (United States)

    2010-07-02

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA... zone on the ] navigable waters of San Diego Bay in support of the San Diego POPS Fireworks. This safety.... Coast Guard Sector San Diego, CA; telephone 619-278- 7262, e-mail Shane.E.Jackson@uscg.mil . If you have...

  2. 78 FR 42027 - Safety Zone; San Diego Bayfair; Mission Bay, San Diego, CA

    Science.gov (United States)

    2013-07-15

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego Bayfair; Mission Bay, San Diego... proposing a temporary safety zone on the navigable waters of Mission Bay in San Diego, CA for the San Diego..., call or email Lieutenant John Bannon, Waterways Management, U.S. Coast Guard Sector San Diego...

  3. 78 FR 29289 - Safety Zone; Big Bay Boom, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2013-05-20

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Big Bay Boom, San Diego Bay, San Diego, CA... establish four temporary safety zones upon the navigable waters of San Diego ] Bay for the Port of San Diego... Management, U.S. Coast Guard Sector San Diego; telephone (619) 278-7261, email John.E.Bannon@uscg.mil . If...

  4. 78 FR 53245 - Safety Zone; San Diego Bayfair; Mission Bay, San Diego, CA

    Science.gov (United States)

    2013-08-29

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego Bayfair; Mission Bay, San Diego... temporary safety zone upon the navigable waters of Mission Bay in San Diego, CA for the annual San Diego... Management, U.S. Coast Guard Sector San Diego; telephone (619) 278-7261, email John.E.Bannon@uscg.mil . If...

  5. Sediment geochemistry of Corte Madera Marsh, San Francisco Bay, California: have local inputs changed, 1830-2010?

    Science.gov (United States)

    Takesue, Renee K.; Jaffe, Bruce E.

    2013-01-01

    Large perturbations since the mid-1800s to the supply and source of sediment entering San Francisco Bay have disturbed natural processes for more than 150 years. Only recently have sediment inputs through the Sacramento-San Joaquin Delta (the Delta) decreased to what might be considered pre-disturbance levels. Declining sediment inputs to San Francisco Bay raise concern about continued tidal marsh accretion, particularly if sea level rise accelerates in the future. The aim of this study is to explore whether the relative amount of local-watershed sediment accumulating in a tidal marsh has changed as sediment supply from the Sacramento-San Joaquin Rivers has decreased. To address this question, sediment geochemical indicators, or signatures, in the fine fraction (silt and clay) of Sacramento River, San Joaquin River, San Francisco Bay, and Corte Madera Creek sediment were identified and applied in sediment recovered from Corte Madera Marsh, one of the few remaining natural marshes in San Francisco Bay. Total major, minor, trace, and rare earth element (REE) contents of fine sediment were determined by inductively coupled plasma mass and atomic emission spectroscopy. Fine sediment from potential source areas had the following geochemical signatures: Sacramento River sediment downstream of the confluence of the American River was characterized by enrichments in chromium, zirconium, and heavy REE; San Joaquin River sediment at Vernalis and Lathrop was characterized by enrichments in thorium and total REE content; Corte Madera Creek sediment had elevated nickel contents; and the composition of San Francisco Bay mud proximal to Corte Madera Marsh was intermediate between these sources. Most sediment geochemical signatures were relatively invariant for more than 150 years, suggesting that the composition of fine sediment in Corte Madera Marsh is not very sensitive to changes in the magnitude, timing, or source of sediment entering San Francisco Bay through the Delta. Nor

  6. 75 FR 32209 - North San Pablo Bay Restoration and Reuse Project

    Science.gov (United States)

    2010-06-07

    ... limits on the timing and quality of the treated wastewater they can discharge to San Pablo Bay, as well as the rivers and streams that flow to it. By treating wastewater to the stricter regulatory levels... Recycling Program. The purpose of the Project is to create a regional wastewater reuse project to...

  7. 33 CFR 80.805 - Rock Island, FL to Cape San Blas, FL.

    Science.gov (United States)

    2010-07-01

    ... to Cape San Blas, FL. (a) A south-north line drawn from the Econfina River Light to the opposite shore. (b) A line drawn from Gamble Point Light to the southernmost extremity of Cabell Point. (c) A line drawn from St. Mark's Range Rear Light to St. Mark's Channel Light 11; thence to the...

  8. Community-based Flood Risk Assessment using GIS for the Town of San Sebastian, Guatemala

    NARCIS (Netherlands)

    Peters-Guarin, G.; van Westen, C.J.; Montoya, L.

    2005-01-01

    The municipality of San Sebastián, considered one of the most prone to natural hazards in Guatemala, was selected as one of the pilot areas of the UNESCO program on “Capacity Building for Natural Disaster Reduction‿. The town is located within the Samalá basin, near the active channel of the river,

  9. Community-based Flood Risk Assessment using GIS for the Town of San Sebastian, Guatemala

    NARCIS (Netherlands)

    Peters-Guarin, G.; Westen, van C.J.; Montoya, L.

    2005-01-01

    The municipality of San Sebastián, considered one of the most prone to natural hazards in Guatemala, was selected as one of the pilot areas of the UNESCO program on “Capacity Building for Natural Disaster Reduction”. The town is located within the Samalá basin, near the active channel of the river,

  10. 1906 San Francisco, USA Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The 1906 San Francisco earthquake was the largest event (magnitude 8.3) to occur in the conterminous United States in the 20th Century. Recent estimates indicate...

  11. Hydraulic Characteristics of the San Gregorio Creek Drainage Basin, California: a Preliminary Study.

    Science.gov (United States)

    Davis, J. R.; Snow, M. K.; Pestrong, R.; Sklar, L. S.; Vavro, M.; Sawachi, A.; Talapian, E.; Bailey, E.

    2004-12-01

    Population pressures within the greater San Francisco Bay Area are forcing development into nearby rural communities, and are impacting local environments. This study of the San Gregorio Creek Watershed is designed as a baseline for evaluating the effect increasing development within the drainage basin has on its river system. We hope to provide evidence for that impact through laboratory and field studies that provide a snap-shot of this drainage basin's current characteristics. The San Gregorio Creek watershed, in the Coast Ranges, is located in the southwestern portion of San Mateo County, California. It drains the western slopes of the Santa Cruz Mountains, in the Coast Ranges into the Pacific Ocean at the town of San Gregorio. Most of its fingertip tributaries flow into the trunk from the north and west, with elevations as high as 2050 feet. The watershed includes an area of approximately 51.6 square miles and San Gregorio Creek, the trunk stream, is roughly 12 miles long. San Gregorio Creek is a fourth order perennial stream. It is fed by a number of major tributaries, the largest of which are Alpine, Mindego, and La Honda creeks. The U.S. Geological Survey maintains a stream gauging station for San Gregorio Creek at the town of San Gregorio, where it has been monitoring stream flows for more than 30 years through its Water Resources Department. The resulting data indicate a mean discharge of 36.4 cfs. Map studies of hydraulic geometry for the drainage basin reveal geometric characteristics for San Gregorio Creek that coincide with similar streams in comparable climatic and environmental settings. Stream table studies are used to further investigate fundamental stream processes. Field studies at selected reaches throughout the drainage basin will document hydraulic characteristics. The results of this study will contribute to more comprehensive studies demonstrateing channel response to changing environmental conditions.

  12. Improved simulation of isoprene oxidation chemistry with the ECHAM5/MESSy chemistry-climate model: lessons from the GABRIEL airborne field campaign

    Directory of Open Access Journals (Sweden)

    T. M. Butler

    2008-03-01

    Full Text Available The GABRIEL airborne field measurement campaign, conducted over the Guyanas in October 2005, produced measurements of hydroxyl radical (OH concentration which are significantly higher than can be simulated using current generation models of atmospheric chemistry. Based on the hypothesis that this "missing OH" is due to an as-yet undiscovered mechanism for recycling OH during the oxidation chain of isoprene, we determine that an OH recycling of about 40–50% (compared with 5–10% in current generation isoprene oxidation mechanisms is necessary in order for our modelled OH to approach the lower error bounds of the OH observed during GABRIEL. Such a large amount of OH in our model leads to unrealistically low mixing ratios of isoprene. In order for our modelled isoprene mixing ratios to match those observed during the campaign, we also require that the effective rate constant for the reaction of isoprene with OH be reduced by about 50% compared with the lower bound of the range recommended by IUPAC. We show that a reasonable explanation for this lower effective rate constant could be the segregation of isoprene and OH in the mixed layer. Our modelling results are consistent with a global, annual isoprene source of about 500 Tg(C yr−1, allowing experimentally derived and established isoprene flux rates to be reconciled with global models.

  13. Improved simulation of isoprene oxidation chemistry with the ECHAM5/MESSy chemistry-climate model: lessons from the GABRIEL airborne field campaign

    Directory of Open Access Journals (Sweden)

    T. M. Butler

    2008-08-01

    Full Text Available The GABRIEL airborne field measurement campaign, conducted over the Guyanas in October 2005, produced measurements of hydroxyl radical (OH concentration which are significantly higher than can be simulated using current generation models of atmospheric chemistry. Based on the hypothesis that this "missing OH" is due to an as-yet undiscovered mechanism for recycling OH during the oxidation chain of isoprene, we determine that an OH recycling of about 40–50% (compared with 5–10% in current generation isoprene oxidation mechanisms is necessary in order for our modelled OH to approach the lower error bounds of the OH observed during GABRIEL. Such a large amount of OH in our model leads to unrealistically low mixing ratios of isoprene. In order for our modelled isoprene mixing ratios to match those observed during the campaign, we also require that the effective rate constant for the reaction of isoprene with OH be reduced by about 50% compared with the lower bound of the range recommended by IUPAC. We show that a reasonable explanation for this lower effective rate constant could be the segregation of isoprene and OH in the mixed layer. Our modelling results are consistent with a global, annual isoprene source of about 500 Tg(C yr−1, allowing experimentally derived and established isoprene flux rates to be reconciled with global models.

  14. Effect of Imprisonment on Prisoners in the Light of Gabriel Tarde's Three Laws (Case Study: Prison of Qom, Arak and Karaj Cities

    Directory of Open Access Journals (Sweden)

    Sara Nikbakht

    2013-07-01

    Full Text Available This study was conducted with the aim to investigate the effect of imprisonment on the prisoners in the light of Gabriel Tarde's Three Laws in the prisons of Qom, Arak and Karaj cities in 2012. Statistical population of survey was consisted of prisoners in three cities of Arak, Qom and Karaj and in this regard 121 individuals were considered as the sample size by using the random sampling; among these individuals, 20 individuals were selected from prisoners in Qom, 33 from Arak and 68 from Karaj. Data collection was based on the questionnaire. Reliability of questionnaire was obtained 0.89 by using Cronbach's alpha method for 22-question researcher-made questionnaire with five-point Likert scale; moreover the content validity was used in order to test the validity of questionnaire and for this propose the questionnaire was approved by relevant experts. Analysis of data, obtained from implementing the questionnaire, was done through the software Spss in both descriptive section (frequency, percentage frequency, mean, standard deviation and inferential section (Single-sample T-test and chi-square test. Results of research indicated that the Gabriel Tarde's laws have been effective in the field of adverse effects of imprisonment on the prisoners. Moreover, the results showed that the effect of imprisonment is not predictable in penal system in reducing the crime and also the outbreak of¬¬¬ crimes by the prisoners is higher.

  15. River engineering

    NARCIS (Netherlands)

    De Vries, M.

    1993-01-01

    One dimension models - basic eauations, analytical models, numberical models. One dimensional models -suspended load, roughness and resistance of river beds. Solving river problems - tools, flood mitigation, bank protection.

  16. Ancient blue oaks reveal human impact on San Francisco Bay salinity

    Science.gov (United States)

    Stahle, David W.; Therrell, Matthew D.; Cleaveland, Malcolm K.; Cayan, Daniel R.; Dettinger, Michael D.; Knowles, Noah

    2001-01-01

    San Francisco Bay is one of the most important estuaries on the west coast of the Americas. Its water quality is controlled primarily by streamflow from the Sacramento and San Joaquin rivers. In fact, freshwater inflow from the Sacramento-San Joaquin Delta explains 86% of the salinity variability at the mouth of the San Francisco Bay estuary [Peterson et al., 1989]. The massive diversion of streamflow by the California State Water Project and the Central Valley Project, part of the largest manmade water control system on Earth [Reisner, 1988], has raised salinity in the estuary on daily, seasonal, and annual timescales [Nichols et al., 1986; Peterson et al., 1989].

  17. Shallow Subsurface Resistivity Profiles Across the San Jose Fault As It Transects the Cal Poly Pomona Campus

    Science.gov (United States)

    Chantrapornlert, K. J.; Polet, J.; Colin, H.

    2015-12-01

    The San Jose fault is a left-lateral strike-slip fault located in the San Gabriel Valley in Southern California. The 1988 (M4.6) and 1990 (M5.2) Upland earthquakes have been attributed to this fault and it has been suggested that it is capable of producing a magnitude M6.0-6.5 earthquake. Sections of the fault are considered to run through the campus of California State Polytechnic University, Pomona as inferred from a 2001 geotechnical engineering report (Geocon, 2001). As it cuts across the campus, the geotechnical engineering report concluded that it has a reverse component of motion. Ascertaining the precise location of the San Jose fault traces on campus is crucial as the university plans its future buildings. Resistivity surveys were conducted across several suggested traces of the fault. The surveys consisted of 24 electrodes in a Wenner electrode configuration with an electrode spacing that varies between 1-5m. An IRIS Instruments Syscal KID switcher unit provided the power source and data recording hardware. The data was processed using IRIS Prosys II software suite before using Geotomo's Res2Dinv software to obtain 2D images of subsurface resistivity for these profiles. A total of 23 surveys were conducted throughout the campus. Surveys were performed before and after rainfall to compensate for the variation of water content and its effect on resistivity. Preliminary results indicate shallow, north-dipping contrasts in resistivity across many of the areas where the fault was previously identified in the Geocon 2001 report. More data will be analyzed to present an enhanced understanding of the San Jose fault in the vicinity of the Cal Poly Pomona campus at AGU.

  18. Residencia San Pedro, California

    Directory of Open Access Journals (Sweden)

    Neutra, Richard J.

    1961-01-01

    Full Text Available Esta vivienda representa una aproximación más hacia la típica casa grande española, con techos de teca de 7 cm, que los señores Rados han edificado y en la que albergan a su gran familia de hijos, los cuales tienen ya sus propios vástagos. Ambos, el señor y la señora Rados, descienden de familias navieras italianas de Trieste, y el propio señor Rados tiene una compañía constructora de barcos en el puerto de San Pedro, que puede verse desde su propia casa. Los dos son verdaderamente unos abuelos muy sociables, cariñosos y atentos. Por añadidura, la señora Rados se entretiene frecuentemente y le agrada el cuidado de la casa. Por ello ha sido proyectada para facilitar sensiblemente toda esta serie de actividades.

  19. Gabriel Melo Guevara

    OpenAIRE

    1982-01-01

    El autor reflexiona sobre la política monetaria, los movimientos económicas y sus repercusiones en todas las esferas sociales; asimismo, sobre la devaluación en blanco y las relaciones entre productividad y salarios. Posteriormente, el autor invita a la elaboración de una interpretación teórica de los problemas y características particulares colombianos. Versa, asimismo, por temas como las garantías sociales, la definición de Estado, las relaciones entre Constitución y Estado, etc.

  20. Engineers at the Golden Gate: A History of the San Francisco District U.S. Army Corps of Engineers 1866-1980

    Science.gov (United States)

    1980-01-01

    the north tO Cape San Martin near San Luis Obispo on the south. The Second San Francisco District was made up of the Great Central Valley of...San Luis Obispo, the District’s boundary line leaves the coast and follows a southeastern arc so as to take in the headwaters of the Salinas River...reduced, Major Mendell contracted with]. N. Risdon on September 4, 1873, to take another hazard, Rincon Rock, down to where it would also be 24 feet

  1. Environmental contaminant investigation of water quality, sediment and biota of the upper Gila River Basin, Arizona

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Water, sediment, lizard, and avian samples and fish (whole body and fillet) were collected in 1990 form several locations along the Gila and San Francisco Rivers in...

  2. Final Environmental Assessment for the Integrated Cultural Resources Management Plan for Edwards Air Force Base, California

    Science.gov (United States)

    2005-07-01

    Ocean by the Coastal Range to the west and the San Gabriel Mountains to the south. The MDAB has an arid continental desert climate. The climate of...River Indian Tribes Beverly Folks Pauline Gallegos FINAL July 2005 70 ICRMP EA Ernie Garcia , Tejon Indian Tribe Christine Hernandez Lucille Hicks...Band of Mission Indians Deron Marquez , San Manuel Band of Mission Indians Kathy Morgan, Tejon Indian Tribe George Murillo, San Manuel Band of

  3. Information technology and decision support tools for stakeholder-driven river basin salinity management

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, N.W.T; Cozad, D.B.; Lee, G.

    2010-01-01

    Innovative strategies for effective basin-scale salinity management have been developed in the Hunter River Basin of Australia and more recently in the San Joaquin River Basin of California. In both instances web-based stakeholder information dissemination has been a key to achieving a high level of stakeholder involvement and the formulation of effective decision support salinity management tools. A common element to implementation of salinity management strategies in both river basins has been the concept of river assimilative capacity for controlling export salt loading and the potential for trading of the right to discharge salt load to the river - the Hunter River in Australia and the San Joaquin River in California. Both rivers provide basin drainage and the means of exporting salt to the ocean. The paper compares and contrasts the use of monitoring, modeling and information dissemination in the two basins to achieve environmental compliance and sustain irrigated agriculture in an equitable and socially and politically acceptable manner.

  4. Foundations study using seismic refraction techniques to the Punta Negra Dike, San Juan Province, Argentina; Estudio de fundaciones aplicando el metodo sismico de refraccion en el Dique Punta Negra, Provincia de San Juan, Argentina

    Energy Technology Data Exchange (ETDEWEB)

    Cuneo, Ricardo Horacio; Gonzalez, Juan Miguel; Ponti, Norberto A. [Instituto Sismologico Fernando Volponi (Argentina)

    1995-12-31

    The aim of this work is to determine the thickness and morphology of the deposit that lies over the Graywackes Complex and that will serve as foundations of the prospect Punta Negra Dam, to be built at Punta Negra site, on the right band of the San Juan river, in San Juan, Argentina. Besides, this paper will serve as a complement to studies of geoelectric prospection of the area and will confirm the presence of a paleo river-bed. The depths of the foundation rock and its physical properties were calculated through the refraction seismic method and the stacking method. (author). 5 refs., 4 figs., 1 tab

  5. Mercury-contaminated hydraulic mining debris in San Francisco Bay

    Science.gov (United States)

    Bouse, Robin M.; Fuller, Christopher C.; Luoma, Samuel N.; Hornberger, Michelle I.; Jaffe, Bruce E.; Smith, Richard E.

    2010-01-01

    The hydraulic gold-mining process used during the California Gold Rush and in many developing countries today contributes enormous amounts of sediment to rivers and streams. Commonly, accompanying this sediment are contaminants such as elemental mercury and cyanide used in the gold extraction process. We show that some of the mercurycontaminated sediment created by hydraulic gold mining in the Sierra Nevada, between 1852 and 1884, ended up over 250 kilometers (km) away in San Francisco Bay; an example of the far-reaching extent of contamination from such activities.

  6. Modeling annual discharge of six Mexico’s northern rivers

    Directory of Open Access Journals (Sweden)

    Jose de Jesus Navar

    2012-04-01

    Full Text Available The overall goal of this report was to understand river discharge variability to improve conventional water management practices of Mexico’s northern subtropical rivers. This report addresses whether: a river discharge tendencies, patterns and cycles can be detected with proxy and instrumental records; and b annual discharge can be forecasted by stochastic models. Eleven gauging stations of six major rivers; three lowland rivers discharging into the Pacific Ocean (Rios Santa Cruz, Acaponeta, and San Pedro; five upland rivers draining into the Pacific Ocean (Rio San Pedro: Peña del Aguila, Refugio Salcido, San Felipe, Vicente Guerrero and Saltito, one river flowing across the interior Basin (Rio Nazas: Salomé Acosta and two more rivers discharging into the Northern Gulf of Mexico (Rio San Juan: El Cuchillo and Rio Ramos: Pablillos were statistically analyzed. Instrumental recorded daily discharge data (1940-1999 and reconstructed time series data (1860-1940 using dendrochronological analysis delivered annual discharge data to be modeled using autoregressive integrated moving average, ARIMA models. Spectral density analysis, autocorrelation functions and the standardized annual discharge data evaluated annual discharge frequency cycles. Results showed ARIMA models with two autoregressive and one moving average coefficient adequately project river discharge for all gauging stations with four of them showing significant declining patterns since 1860. ARIMA models in combination with autocorrelation and spectral density techniques as well as standardized departures, in agreement with present (2002-2010 observations, forecast a wet episode that may last between 9 and 12 years thereafter entering again into a dry episode. Three dry-wet spell cycles with different time scales (1-2 years; 4-7 years; 9-12 years could be discerned from these analyses that are consistent for all three northern Mexico’s river clusters that emerged from a multivariate

  7. Dictation and Narration: A Genettian study of Gabriel García Márquez’s "El otoño del patriarca"

    Directory of Open Access Journals (Sweden)

    Paul Stephen Hyland

    2015-10-01

    Full Text Available This paper examines arguably the most challenging of Gabriel García Márquez’s works: his 1975 El otoño del patriarca. I pay particular attention to the role of its circular temporality and constantly shifting narrative voice, examining these closely through the lens of structuralist narratologist Gérard Genette's 1972 Narrative Discourse.  In doing so, I elucidate some of the key difficulties of the García Márquez novel, and explain how this difficult narrative mode is essential to the novel's success.  With Genette's ideas in mind I show the extent to which El otoño del patriarca is able to escape structuralist conceptions of narrative and convey a story of life under a dictatorship in a way that defies the limits of our language.

  8. Notas filosóficas sobre la soledad en Cien años de soledad (1967) de Gabriel García Márquez

    OpenAIRE

    2016-01-01

    No ha sido suficientemente pensado el título de la novela que Gabriel García Márquez publica en 1967. La soledad en el título de esa obra debe ser comprendida como una verdad humana que “toca el corazón” −para usar la metáfora compleja de William Faulkner. Mis argumentos se irán construyendo a partir del recurso a lo que podría ser llamado “anacronismos sugerentes”. Gracias a estos anacronismos, haré entrar en diálogo obras y autores que muy seguramente García Márquez no tuvo en mente durante...

  9. Bestiários dispersos em obras de Gabriel García Márquez, Horacio Quiroga, José Cardoso Pires e Miguel Torga

    OpenAIRE

    2012-01-01

    Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Línguas, Literaturas e Culturas, área de especialização em Estudos Ibéricos e Ibero-Americanos Leitura e análise comparativas dos bestiários em algumas obras de Gabriel García Márquez, Horacio Quiroga, José Cardoso Pires e Miguel Torga. Enquadramento teórico do termo literário “tema”, sua articulação com “mito” e alguns tópicos referentes à zoosemiótica antropológica. Reflexão crítica sobre ...

  10. “All now is still” : de la citation à l’œuvre dans Ruggiero and Angelica de Dante Gabriel Rossetti

    Directory of Open Access Journals (Sweden)

    Laurence ROUSSILLON

    2004-06-01

    Full Text Available Des tableaux illustrant la poésie de Dante aux sonnets commentant des tableaux d’artistes célèbres jusqu’à ses propres poèmes tableaux – œuvres hybrides où texte et image se mêlent plus qu’ils ne se côtoient – l’œuvre poétique et picturale de Dante Gabriel Rossetti est un labyrinthe d’intertextualité et une source inépuisable de réflexion sur les jeux et les enjeux de la citation. Elle est chez lui rarement à entendre dans le sens classique du terme où il s’agit de rapporter un passage d’une ...

  11. Rezension von: Gabriele Dietze: Weiße Frauen in Bewegung. Genealogien und Konkurrenzen von Race- und Genderpolitiken. Bielefeld: transcript Verlag 2013.

    Directory of Open Access Journals (Sweden)

    Philipp Dorestal

    2014-03-01

    Full Text Available Gabriele Dietze zeichnet das Verhältnis der Kategorien Race und Gender innerhalb der US-amerikanischen Geschichte von der Mitte des 19. Jahrhunderts bis zur Präsidentschaftswahl von Barack Obama nach. Dabei demonstriert sie anhand von zentralen Figuren der weißen Frauenbewegung deren ambivalente Positionen, die oftmals für progressive Inhalte wie das Eintreten für Frauenrechte stehen, gleichzeitig aber dann Anliegen von African Americans nicht artikulieren oder gar zum Schweigen bringen. Ebenso zeigt Dietze mithilfe von Texten einiger schwarzer Autor_innen sowie anhand berühmter Gerichtsprozesse, dass schwarze Emanzipation nicht notwendigerweise mit feministischen Positionen einhergehen musste, sondern sich vielmehr eine Konkurrenzsituation zwischen Race und Gender entspann.

  12. Vegetation - San Felipe Valley [ds172

    Data.gov (United States)

    California Department of Resources — This Vegetation Map of the San Felipe Valley Wildlife Area in San Diego County, California is based on vegetation samples collected in the field in 2002 and 2005 and...

  13. 75 FR 39166 - Safety Zone; San Francisco Giants Baseball Game Promotion, San Francisco, CA

    Science.gov (United States)

    2010-07-08

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Francisco Giants Baseball Game... Bay off San Francisco, CA in support of the San Francisco Giants Baseball Game Promotion. This safety... Giants will sponsor the San Francisco Giants Baseball Game Promotion on July 16, 2010, on the...

  14. 78 FR 21403 - Notice of Inventory Completion: San Francisco State University NAGPRA Program, San Francisco, CA

    Science.gov (United States)

    2013-04-10

    ... NAGPRA Program, c/o Department of Anthropology, San Francisco State University, 1600 Holloway Avenue, San...: Pursuant to 25 U.S.C. 3001(9), the human remains described in this notice represent the physical remains of... NAGPRA Program, c/o Department of Anthropology, San Francisco State University, 1600 Holloway Avenue, San...

  15. 76 FR 55796 - Safety Zone; TriRock Triathlon, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2011-09-09

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; TriRock Triathlon, San Diego Bay, San Diego.... Basis and Purpose Competitor Group is sponsoring the TriRock Triathlon, consisting of 2000 swimmers....T11-431 Safety Zone; TriRock Triathlon, San Diego Bay, San Diego, CA. (a) Location. The limits of...

  16. 76 FR 45693 - Safety Zone; San Diego POPS Fireworks, San Diego, CA

    Science.gov (United States)

    2011-08-01

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego POPS Fireworks, San Diego, CA... temporary safety zone on the navigable waters of San Diego Bay in support of the San Diego POPS Fireworks... Diego, CA; telephone (619) 278- 7262, e-mail Shane.E.Jakcson@uscg.mil . If you have questions on viewing...

  17. 78 FR 38584 - Safety Zone; San Diego Symphony Summer POPS Fireworks 2013 Season, San Diego, CA

    Science.gov (United States)

    2013-06-27

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego Symphony Summer POPS Fireworks 2013 Season, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the navigable waters of San Diego Bay in support of the San Diego...

  18. 76 FR 75908 - Notice of Inventory Completion: The University of California, San Diego, San Diego, CA

    Science.gov (United States)

    2011-12-05

    ... National Park Service Notice of Inventory Completion: The University of California, San Diego, San Diego... California on behalf of the University of California, San Diego, have completed an inventory of human remains... contact the University of California, San Diego. Disposition of the human remains and associated funerary...

  19. 77 FR 42647 - Safety Zone: San Diego Symphony POPS Fireworks; San Diego, CA

    Science.gov (United States)

    2012-07-20

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone: San Diego Symphony POPS Fireworks; San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the navigable waters of San Diego Bay in support of the San Diego Symphony POPS...

  20. 75 FR 77756 - Safety Zone; San Diego Parade of Lights Fireworks, San Diego, CA

    Science.gov (United States)

    2010-12-14

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; San Diego Parade of Lights Fireworks, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone upon the navigable water of the San Diego Bay in San Diego, CA in support of the two...

  1. The San Bernabe power substation; La subestacion San Bernabe

    Energy Technology Data Exchange (ETDEWEB)

    Chavez Sanudo, Andres D. [Luz y Fuerza del Centro, Mexico, D. F. (Mexico)

    1997-12-31

    The first planning studies that gave rise to the San Bernabe substation go back to year 1985. The main circumstance that supports this decision is the gradual restriction for electric power generation that has been suffering the Miguel Aleman Hydro System, until its complete disappearance, to give priority to the potable water supply through the Cutzamala pumping system, that feeds in an important way Mexico City and the State of Mexico. In this document the author describes the construction project of the San Bernabe Substation; mention is made of the technological experiences obtained during the construction and its geographical location is shown, as well as the one line diagram of the same [Espanol] Los primeros estudios de planeacion que dieron origen a la subestacion San Bernabe se remontan al ano de 1985. La circunstancia principal que soporta esta decision es la restriccion paulatina para generar energia que ha venido experimentando el Sistema Hidroelectrico Miguel Aleman, hasta su desaparicion total, para dar prioridad al suministro de agua potable por medio del sistema de bombeo Cutzamala, que alimenta en forma importante a la Ciudad de Mexico y al Estado de Mexico. En este documento el autor describe el proyecto de construccion de la subestacion San Bernabe; se mencionan las experiencias tecnologicas obtenidas durante su construccion y se ilustra su ubicacion geografica, asi como un diagrama unifilar de la misma

  2. Isolation and identification of bioactive compounds responsible for the anti-bacterial efficacy of Lotus corniculatus var. São Gabriel

    Directory of Open Access Journals (Sweden)

    Dalmarco Juliana

    2010-01-01

    Full Text Available Lotus corniculatus (Fabaceae is considered a forage plant utilized as food for ruminants in the south of Brazil. This herb is also actually used to treat intestinal infection in these animals. In our experiments, we evaluated the anti-bacterial activity of crude extract from L. corniculatus var. Sγo Gabriel were assayed against Gram-positive and Gram-negative bacterium. The crude extracted did not show any anti-bacterial activity, but the hexane fraction did on Bacillus cereus (MIC=100 μg/mL and on Enterococcus faecalis, Listeria monocytogenes, Staphylococcus aureus, Staphylococcus epidermidis, Acinetobacter calcoaceticus, and Providencia alcalifaciens (MIC=600, 800 or 1000 μg/mL. The Ethyl acetate fraction (AcOEt also showed important anti-bacterial activity on Bacillus cereus, E. faecalis, and Acinetobacter calcoaceticus (MIC=800 μg/mL. The oleanolic acid isolated from hexane fraction showed the same effect on Staphylococcus aureus methycillin-resistant (MIC=100 μg/mL, L. monocytogenes (MIC=25 μg/mL, and Bacillus cereus (MIC=25 μg/mL. Further, Kaempferitrin isolated from ethyl acetate fraction has also shown anti-bacterial activity on Shighella flexinerii (MIC=100 μg/mL, Salmonella typhimurium (MIC=100 μg/mL, A. calcoaceticus (MIC=100 μg/mL, E. faecalis (MIC=3.9 μg/mL, and Bacillus cereus (MIC=8.5 μg/mL. This study suggests that L. corniculatus var. Sγo Gabriel have potential pharmacological property for a new anti-bacterial drug development.

  3. The enigma of capitalism - Beyond human power II and John Gabriel Borkman. Bjørnstjere Bjørnson and Henrik Ibsen as critics of capitalism

    Directory of Open Access Journals (Sweden)

    Fredrik Engelstad

    2015-02-01

    Full Text Available The mid-1890s saw the publication of two seminal critiques of capitalism in Norwegian drama: Bjørnstjerne Bjørnson’s Beyond Human Power – Second Play (1895, and Henrik Ibsen’s John Gabriel Borkman (1896. The obvious differences, as well as the similarities of these plays, invite a comparative analysis. Bjørnson’s play is a sociological depiction of class differences and class struggles, expressed in collective action strategies by employers, and a strange mixture of powerlessness and terrorism by the working class.  The main references are work relations and social and political collectivities. Nevertheless, identities and close social relations are a necessary part of social structures as well as dramatic plots. The analysis of Bjørnson’s play focuses on the relationships between individual lives and individual action on the one hand, and the broad social landscape on the other. John Gabriel Borkman is about a stagnated universe, where all of the main characters are trying to revive the past. Borkman is not about work and collectivities, but about financial capital. To Ibsen, financial capital is the ideal environment for research on the ambitions and shortcomings of individuals. Finance in one sense leads to the aggrandizement of individual power; it makes possible the idea that one man can rule the world. At the same time, there is a world of production in the Ibsenesque universe, as there is a world of social identities in Bjørnson. The inspiration for both plays may be found in the developments of capitalism during the latter half of the nineteenth century, but also in their intertextual relationships with Nietzsche and Goethe’s Faust.

  4. Selected streambed sediment compounds and water toxicity results for Westside Creeks, San Antonio, Texas, 2014

    Science.gov (United States)

    Crow, Cassi L.; Wilson, Jennifer T.; Kunz, James L.

    2016-12-01

    IntroductionThe Alazán, Apache, Martínez, and San Pedro Creeks in San Antonio, Texas, are part of a network of urban tributaries to the San Antonio River, known locally as the Westside Creeks. The Westside Creeks flow through some of the oldest neighborhoods in San Antonio. The disruption of streambed sediment is anticipated during a planned restoration to improve and restore the environmental condition of 14 miles of channelized sections of the Westside Creeks in San Antonio. These construction activities can create the potential to reintroduce chemicals found in the sediments into the ecosystem where, depending on hydrologic and environmental conditions, they could become bioavailable and toxic to aquatic life. Elevated concentrations of sediment-associated contaminants often are measured in urban areas such as San Antonio, Tex. Contaminants found in sediment can affect the health of aquatic organisms that ingest sediment. The gradual accumulation of trace elements and organic compounds in aquatic organisms can cause various physiological issues and can ultimately result in death of the aquatic organisms; in addition, subsequent ingestion of aquatic organisms can transfer the accumulated contaminants upward through the food chain (a process called biomagnification).The U.S. Geological Survey, in cooperation with the San Antonio River Authority, collected sediment samples and water samples for toxicity testing from sites on the Westside Creeks as part of an initial characterization of selected contaminants in the study area. Samples were collected in January 2014 during base-flow conditions and again in May 2104 after a period of stormwater runoff (poststorm conditions). Sediment samples were analyzed for selected constituents, including trace elements and organic contaminants such as pesticides, brominated flame retardants, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs). In addition, as an indicator of ecological health (and

  5. USGS measurements of water quality in San Francisco Bay (CA), 1969-2015

    Science.gov (United States)

    Cloern, James E.; Schraga, Tara

    2016-01-01

    The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. This Data Release makes available all measurements made from 1969 through 2015. Water-quality constituents include salinity, temperature, light attenuation coefficient, and concentrations of chlorophyll-a, dissolved oxygen, suspended particulate matter, nitrate, nitrite, ammonium, silicate and phosphate. Water samples are collected at 37 fixed sampling locations along a 145-km transect from lower South San Francisco Bayo to the lower Sacramento River. A map of sampling locations is available on the project website at: https://sfbay.wr.usgs.gov/access/wqdata/overview/wherewhen/stnmap.html.

  6. Descriptions of the Animas River-Cement Creek Confluence and Mixing Zone Near Silverton, Colorado, During the Late Summers of 1996-1997

    Science.gov (United States)

    2005-01-01

    Descriptions of the Animas River-Cement Creek Confluence and Mixing Zone near Silverton , Colorado, during the Late Summers of 1996 and 1997 U.S...circum-neutral Animas River in a high-elevation region of the San Juan Mountains near Silverton , Colorado. Cement Creek is acidic and enriched in metals...Animas River drains an extensively mineralized caldera in the San Juan Mountains near Silverton , Colorado (Yager and Bove, 2002). This is an area of

  7. A Spanish Borderlands Community: San Antonio.

    Science.gov (United States)

    Teja, Jesus F. de la

    2000-01-01

    Discusses the founding of San Antonio, originally San Antonio de Bexar, which, in 1718, came into being as a military settlement involved in Spanish imperial defensive measures. Focuses on the development and continued growth of San Antonio, Texas's most populous city in the 19th century. (CMK)

  8. Estimating natural recharge in San Gorgonio Pass watersheds, California, 1913–2012

    Science.gov (United States)

    Hevesi, Joseph A.; Christensen, Allen H.

    2015-12-21

    A daily precipitation-runoff model was developed to estimate spatially and temporally distributed recharge for groundwater basins in the San Gorgonio Pass area, southern California. The recharge estimates are needed to define transient boundary conditions for a groundwater-flow model being developed to evaluate the effects of pumping and climate on the long-term availability of groundwater. The area defined for estimating recharge is referred to as the San Gorgonio Pass watershed model (SGPWM) and includes three watersheds: San Timoteo Creek, Potrero Creek, and San Gorgonio River. The SGPWM was developed by using the U.S. Geological Survey INFILtration version 3.0 (INFILv3) model code used in previous studies of recharge in the southern California region, including the San Gorgonio Pass area. The SGPWM uses a 150-meter gridded discretization of the area of interest in order to account for spatial variability in climate and watershed characteristics. The high degree of spatial variability in climate and watershed characteristics in the San Gorgonio Pass area is caused, in part, by the high relief and rugged topography of the area.

  9. Bottom-up, decision support system development : a wetlandsalinity management application in California's San Joaquin Valley

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.

    2006-05-10

    Seasonally managed wetlands in the Grasslands Basin ofCalifornia's San Joaquin Valley provide food and shelter for migratorywildfowl during winter months and sport for waterfowl hunters during theannual duck season. Surface water supply to these wetland contain saltwhich, when drained to the San Joaquin River during the annual drawdownperiod, negatively impacts downstream agricultural riparian waterdiverters. Recent environmental regulation, limiting discharges salinityto the San Joaquin River and primarily targeting agricultural non-pointsources, now addresses return flows from seasonally managed wetlands.Real-time water quality management has been advocated as a means ofmatching wetland return flows to the assimilative capacity of the SanJoaquin River. Past attempts to build environmental monitoring anddecision support systems to implement this concept have failed forreasons that are discussed in this paper. These reasons are discussed inthe context of more general challenges facing the successfulimplementation of environmental monitoring, modelling and decisionsupport systems. The paper then provides details of a current researchand development project which will ultimately provide wetland managerswith the means of matching salt exports with the available assimilativecapacity of the San Joaquin River, when fully implemented. Manipulationof the traditional wetland drawdown comes at a potential cost to thesustainability of optimal wetland moist soil plant habitat in thesewetlands - hence the project provides appropriate data and a feedback andresponse mechanism for wetland managers to balance improvements to SanJoaquin River quality with internally-generated information on the healthof the wetland resource. The author concludes the paper by arguing thatthe architecture of the current project decision support system, whencoupled with recent advances in environmental data acquisition, dataprocessing and information dissemination technology, holds

  10. Convair Astronautics, San Diego (California

    Directory of Open Access Journals (Sweden)

    Pereira & Luckmam, Arquitectos

    1960-05-01

    Full Text Available Este brillante y espectacular complejo industrial se ha creado especialmente para la investigación y fabricación de cohetes intercontinentales y vehículos del espacio de las Fuerzas Aéreas de los EE. UU., en las proximidades de San Diego y cerca del campo de pruebas de Sycamore Canyon.

  11. 33 CFR 110.224 - San Francisco Bay, San Pablo Bay, Carquinez Strait, Suisun Bay, Sacramento River, San Joaquin...

    Science.gov (United States)

    2010-07-01

    ....; thence southeasterly to latitude 37°49′32.5″ N., longitude 122°21′20.5″ W.; thence easterly to latitude...″ W; thence easterly to 37°46′36.5″ N, 122°19′52″ W; thence northerly to shore at 37°46′53″ N, 122°19... 122°21′57″ W; thence easterly along the northern border of Anchorage 9 to latitude 37°46′26″ N...

  12. Contested Rivers

    DEFF Research Database (Denmark)

    Gorm Hansen, Louise Lyngfeldt

    explores translocal connections through ethnographic fieldwork at a global water conference and preliminary fieldwork at chosen locations on China's Nu River. The Nu River is one of the last undammed rivers in Asia and runs through China close to the Chinese-Burmese border, then flows into the Andaman Sea...

  13. Tijuana River Flood Control Project, San Diego County, California.

    Science.gov (United States)

    1976-05-20

    heavier-rainfall watershed have reduced runoff, and the occurrence of a series of dryer -than-normal years which has not yet ended; and (c) the absence...bus Tumbling pigweed Ameranthus graucizans Red orache A triplex rosea Field mustard* Brassica campestris Black mustard Brassica nigra White goosefoot

  14. Invasive Plants (poly) - Red Sesbania - San Joaquin River [ds633

    Data.gov (United States)

    California Department of Resources — The purpose of this work is to estimate the occurrence, distribution, approximate locations, and abundance of red sesbania (Sesbania punicea) and four other major...

  15. San Luis Rey River Basin: Overview of Cultural Resources,

    Science.gov (United States)

    1977-12-01

    Vista Irrigation District. A total of 24 sites was reported, including Kupa , the chief village of the Cupeno, located at Warner’s Hot Springs; Mataguay...after the name of their principal village, Kupa , at the springs. The history of the Cupeno is not clear. Bean and Lawton (1967:5) are of the opinion...with a distinct dialect closely related to Cahuilla, and were living at the village of Kupa , where they remained until their eviction in 1903. 12 A

  16. Polycyclic Aromatic Hydrocarbon Investigation for the San Juan River, San Juan County, New Mexico, 1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In October of 1992, Environmental Contaminants Program personnel from the U.S. Fish and Wildlife Service's New Mexico Ecological Services State Office assayed bile...

  17. Mud transport in the Microtidal San Jacinto Estuary

    Science.gov (United States)

    Salehi, M.

    2013-12-01

    The overall objective of this research is to better understand the sediment transport processes in the microtidal San Jacinto Estuary (near Houston, TX) under variable hydrologic conditions. A numerical modeling approach is selected to answer the main question of; how will changes in freshwater input change the sedimentation pattern of the region? In this computational work, no new numerical method or code is developed, but rather an existing technology (MIKE 3D developed by DHI) is used to build a virtual San Jacinto Estuary laboratory where boundary conditions could be applied and altered to the domain to observe the general functional response of the system. Two synthetic freshwater inflows, simulating dry and wet conditions, were used in the numerical modeling experiments. Simulations showed that change in freshwater inflow has major impact on the salinity magnitude within the estuary. In dry conditions, the 5 ppt isohaline traveled all the way upstream of Morgans Point, almost to the confluence of San Jacinto River with Buffalo Bayou. During the extreme wet weather conditions, the 5 ppt isohaline of the surface water was pushed almost as far as Galveston Island. Overall erosion and deposition pattern showed little change between extreme dry and wet years. In general, part of the shallow areas experienced erosion whereas deeper parts of the estuary were under deposition. High freshwater inflow caused around 30% higher deposition in some parts of the channel compared with the low freshwater. Furthermore, examining the mass balance within the whole San Jacinto Estuary showed that around 28% of the input sediment was flushed out during the wet season. But in dry season, not only no sediment left the domain but also it received around 17% of the total available sediment within the estuary from the shelf.

  18. Seasonal cycles of zooplankton from San Francisco Bay

    Science.gov (United States)

    Ambler, Julie W.; Cloern, James E.; Hutchinson, Anne

    1985-01-01

    The two estuarine systems composing San Francisco Bay have distinct zooplankton communities and seasonal population dynamics. In the South Bay, a shallow lagoon-type estuary, the copepods Acartia spp. and Oithona davisae dominate. As in estuaries along the northeast coast of the U.S., there is a seasonal succession involving the replacement of a cold-season Acartia species (A. clausi s.l.) by a warm-season species (A. californiensis), presumably resulting from the differential production and hatching of dormant eggs. Oithona davisae is most abundant during the fall. Copepods of northern San Francisco Bay, a partially-mixed estuary of the Sacramento-San Joaquin Rivers, organize into discrete populations according to salinity distribution: Sinocalanus doerrii (a recently introduced species) at the riverine boundary, Eurytemora affinis in the oligohaline mixing zone, Acartia spp. in polyhaline waters (18–30\\%), and neritic species (e.g., Paracalanus parvus) at the seaward boundary. Sinocalanus doerrii and E. affinis are present year-round. Acartia clausi s.l.is present almost year-round in the northern reach, and A. californiensis occurs only briefly there in summer-fall. The difference in succession of Acartia species between the two regions of San Francisco Bay may reflect differences in the seasonal temperature cycle (the South Bay warms earlier), and the perennial transport of A. clausi s.l. into the northern reach from the seaward boundary by nontidal advection.

  19. A basin-scale approach for assessing water resources in a semiarid environment: San Diego region, California and Mexico

    Directory of Open Access Journals (Sweden)

    L. E. Flint

    2012-10-01

    Full Text Available Many basins throughout the world have sparse hydrologic and geologic data, but have increasing demands for water and a commensurate need for integrated understanding of surface and groundwater resources. This paper demonstrates a methodology for using a distributed parameter water-balance model, gaged surface-water flow, and a reconnaissance-level groundwater flow model to develop a first-order water balance. Flow amounts are rounded to the nearest 5 million cubic meters per year.

    The San Diego River basin is 1 of 5 major drainage basins that drain to the San Diego coastal plain, the source of public water supply for the San Diego area. The distributed parameter water-balance model (Basin Characterization Model was run at a monthly timestep for 1940–2009 to determine a median annual total water inflow of 120 million cubic meters per year for the San Diego region. The model was also run specifically for the San Diego River basin for 1982–2009 to provide constraints to model calibration and to evaluate the proportion of inflow that becomes groundwater discharge, resulting in a median annual total water inflow of 50 million cubic meters per year. On the basis of flow records for the San Diego River at Fashion Valley (US Geological Survey gaging station 11023000, when corrected for upper basin reservoir storage and imported water, the total is 30 million cubic meters per year. The difference between these two flow quantities defines the annual groundwater outflow from the San Diego River basin at 20 million cubic meters per year. These three flow components constitute a first-order water budget estimate for the San Diego River basin. The ratio of surface-water outflow and groundwater outflow to total water inflow are 0.6 and 0.4, respectively. Using total water inflow determined using the Basin Characterization Model for the entire San Diego region and the 0.4 partitioning factor, groundwater outflow from the San Diego region, through

  20. U.S. EPA’s Technical Support for the Reich Farm (Toms River, NJ) Superfund Site Remediation

    Science.gov (United States)

    PowerPoint slide file that gives a brief history of the SAN Trimer contamination in Toms River, NJ as well as the EPA's provided technical support, specifically the development and application of the Provisional Peer-Reviewed Toxicity Value (PPRTV) assessment for SAN Trimer.

  1. Real-Time Water Quality Monitoring and Habitat Assessment in theSan Luis National Wildlife Refuge

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Nigel W.T.; Hanlon, Jeremy S.; Burns, Josephine R.; Stromayer, Karl A.K.; Jordan, Brandon M.; Ennis, Mike J.; Woolington,Dennis W.

    2005-08-28

    The project report describes a two year experiment to control wetland drainage to the San Joaquin River of California from the San Luis National Wildlife Refuge using a decision support system for real-time water quality management. This system required the installation and operation of one inlet and three drainage flow and water quality monitoring stations which allowed a simple mass balance model to be developed of the seasonally managed wetlands in the study area. Remote sensing methods were developed to document long-term trends in wetland moist soil vegetation and soil salinity in response to management options such as delaying the initiation of seasonal wetland drainage. These environmental management tools provide wetland managers with some of the tools necessary to improve salinity conditions in the San Joaquin River and improve compliance with State mandated salinity objectives without inflicting long-term harm on the wild fowl habitat resource.

  2. Selenium and other elements in juvenile striped bass from the San Joaquin Valley and San Francisco Estuary, California

    Science.gov (United States)

    Saiki, Michael K.; Palawski, Donald U.

    1990-01-01

    Concentrations of selenium and other trace elements were determined in 55 whole body samples of juvenile anadromous striped bass (Morone saxatilis) from the San Joaquin Valley and San Francisco Estuary, California. The fish (≤1 yr old—the predominant life stage in the San Joaquin Valley) were collected in September–December 1986 from 19 sites in the Valley and 3 sites in the Estuary, and analyzed for the following elements: aluminum (Al), arsenic (As), boron (B), barium (Ba), beryllium (Be), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), magnesium (Mg), molybdenum (Mo), nickel (Ni), lead (Pb), selenium (Se), strontium (Sr), vanadium (V), and zinc (Zn). When compared to concentrations in whole freshwater fish measured by surveys from other waters, a few samples contained higher levels, of As, Cd, Cu, Pb, and Se. The median concentrations of Al, As, Cu, Fe, Mg, Se, and Sr also differed significantly (P⩽0.05) among sites. However, only Se concentrations were highest (up to 7.9 μg/g dry weight) in samples from Valley sites exposed to agricultural subsurface (tile) drainwater; concentrations were lower in samples collected elsewhere. Water quality variables—especially those strongly influenced by tile drainwater (conductivity, total dissolved solids, total alkalinity, and total hardness)—were also significantly correlated (P⩽0.05) with Se concentrations in fish. Selenium concentrations in striped bass from the Estuary were only one-fourth to one-half the concentrations measured in the most contaminated fish from the San Joaquin River.

  3. Geochemical fine-sediment tracers in San Francisco Bay and its outer coast: the role of local watersheds

    Science.gov (United States)

    Takesue, R. K.; Barnard, P. L.

    2012-12-01

    Sediment enters San Francisco Bay (SFB) through the Sacramento-San Joaquin River Delta, the Golden Gate, and local watersheds. Inputs from local watersheds have become increasingly important since the 1940s when large-scale impoundments began upstream of the Delta. The goals of this study are to determine whether fine sediment from local watersheds have distinct geochemical signatures, and if these can be used to determine whether locally-derived sediment accumulates in SFB. Retention of fine sediment is essential if accretion of shallow and intertidal habitats is to keep pace with sea level rise. Total contents of chromium (Cr), lanthanum (La), thorium (Th), zirconium (Zr), rare earth elements (REE), and twenty five other elements were determined by ICP-MS in the fine or "mud" fraction (<63 μm) of river, tributary, bay, and outer coast bed sediment. SFB and outer coast sediment was collected in January 2012 after a 5-day storm. River and tributary sediment was collected between 2010-2012. REE contents were normalized to a shale composite (NASC). In comparison to granitic material from the Sierra Nevada, local watersheds contain ultramafic Franciscan rocks in the Coast Range, volcanic deposits near Napa and Sonoma, and ancient marine sedimentary rocks. Fine sediment from the Sacramento River was enriched in heavy REE (HREENASC) and Cr, while that from the San Joaquin River was enriched in light REE (LREENASC) and Th. Petaluma River and Sonoma Creek fine sediments were distinguished by middle REE (MREENASC) enrichments and low Cr contents consistent with felsic volcanic rocks. In contrast, fine sediments in Napa River and Wildcat Creek had relatively flat REENASC patterns and intermediate to high Cr contents that suggest a Franciscan influence. The same was true for fine sediment in Marin creeks (Arroyo del Presidio and Corte Madera) and two South Bay tributaries (Guadelupe River and San Francisquito Creek). San Francisquito Creek fine sediment was uniquely

  4. The Sierra Nevada-San Joaquin Hydrologic Observatory (SNSJHO): A WATERS Network Test Bed

    Science.gov (United States)

    Fisher, J.; Meng, X.; Rice, R.; Butler, C.; Molotch, N.; Harmon, T. C.; Bales, R.

    2007-12-01

    A mountain-to-valley virtual hydrologic observatory in Central California provides a focus for data and information in support of hydrologic research, a testbed for prototype measurement systems, and guidance for development of measurement and cyber infrastructure in an actual observatory. The multiple rivers and watersheds making up the 60,000 km2 greater San Joaquin drainage are physically disconnected by mountain-front dams that provide flood control, hydropower, seasonal water delivery and recreation. However, the mountain and valley portions are institutionally connected in multiple ways. For example, each year the winter snowpack and watershed conditions determine the magnitude of annual runoff. Errors in snowpack measurements and runoff forecasts have huge economic implications for valley water users. Second, valley flood control, water quality, irrigation demand and hydropower operations have a very strong interest in influencing mountain watershed management. The broader aim of the Sierra Nevada-San Joaquin Hydrologic Observatory is to build research infrastructure and promote research for improving the knowledge base for sound hydrologic management in the Sierra Nevada, San Joaquin Valley and across the Western U.S. In the Sierra Nevada the current focus is on developing spatially distributed instrument clusters that, when blended with remotely sensed data, will improve water balance closure from hillslope to watershed scales. Five instrument clusters at or just above the rain-snow transition are in place and under development. In the San Joaquin Valley, the focus is on sensor systems for observing fertilizer application rates in agriculture, groundwater-surface water exchanges in rivers, and flow and mixing in the confluence zones between the main stem San Joaquin and tributary Merced Rivers. A common digital library and analysis framework further links the mountain and valley portions of the virtual observatory (see https://eng.ucmerced.edu/dev00/snsjno).

  5. Screening-Level Risk Assessment for Styrene-Acrylonitrile (SAN) Trimer Detected in Soil and Groundwater

    OpenAIRE

    Kirman, C. R.; Gargas, M L; Collins, J. J.; Rowlands, J. C.

    2012-01-01

    A screening-level risk assessment was conducted for styrene-acrylonitrile (SAN) Trimer detected at the Reich Farm Superfund site in Toms River, NJ. Consistent with a screening-level approach, on-site and off-site exposure scenarios were evaluated using assumptions that are expected to overestimate actual exposures and hazards at the site. Environmental sampling data collected for soil and groundwater were used to estimate exposure point concentrations. Several exposure scenarios were evaluate...

  6. San Pascual (1991) Año XXVIII, n. 284

    OpenAIRE

    Pérez, María Dolores, O.S.C. (Directora)

    1991-01-01

    Editorial. Documento de la Santa sede. San Pascual y la Virgen de Gracia. Nueva revista dedicada a San Pascual. Adoración nocturna. Desde la clausura. Vida en el santuario de San Pascual. Orden Franciscana. Coplas a San Pascual Baylón. San Pascual en el arte. Rutas pascualinas. A l'ombra del claustre.

  7. San Pascual (1991) Año XXVIII, n. 284

    OpenAIRE

    Pérez, María Dolores, O.S.C. (Directora)

    1991-01-01

    Editorial. Documento de la Santa sede. San Pascual y la Virgen de Gracia. Nueva revista dedicada a San Pascual. Adoración nocturna. Desde la clausura. Vida en el santuario de San Pascual. Orden Franciscana. Coplas a San Pascual Baylón. San Pascual en el arte. Rutas pascualinas. A l'ombra del claustre.

  8. River nomads

    DEFF Research Database (Denmark)

    2016-01-01

    River nomads is a movie about people on the move. The documentary film explores the lifestyle of a group of nomadic fishermen whose mobility has been the recipe of success and troubles. Engaged in trade and travel, twice a year the river nomads form impressive convoys of majestic pirogues and set...... and liberated lifestyle and the breath-taking landscapes and vistas offered by the Niger River. River Nomads is also a personal account of the Kebbawa’s way of life and their current struggles as nomadic folk living in a world divided by borders and ruled by bureaucrats....

  9. The Cenozoic evolution of the San Joaquin Valley, California

    Science.gov (United States)

    Bartow, J. Alan

    1991-01-01

    The San Joaquin Valley, which is the southern part of the 700-km-long Great Valley of California, is an asymmetric structural trough that is filled with a prism of upper Mesozoic and Cenozoic sediments up to 9 km thick; these sediments rest on crystalline basement rocks of the southwestward-tilted Sierran block. The San Joaquin sedimentary basin is separated from the Sacramento basin to the north by the buried Stockton arch and associated Stockton fault. The buried Bakersfield arch near the south end of the valley separates the small Maricopa-Tejon subbasin at the south end of the San Joaquin basin from the remainder of the basin. Cenozoic strata in the San Joaquin basin thicken southeastward from about 800 m in the north to over 9,000 m in the south. The San Joaquin Valley can be subdivided into five regions on the basis of differing structural style. They are the northern Sierran block, the southern Sierran block, the northern Diablo homocline, the westside fold belt, and the combined Maricopa-Tejon subbasin and southmargin deformed belt. Considerable facies variation existed within the sedimentary basin, particularly in the Neogene when a thick section of marine sediment accumulated in the southern part of the basin, while a relatively thin and entirely nonmarine section was deposited in the northern part. The northern Sierran block, the stable east limb of the valley syncline between the Stockton fault and the San Joaquin River, is the least deformed region of the valley. Deformation consists mostly of a southwest tilt and only minor late Cenozoic normal faulting. The southern Sierran block, the stable east limb of the valley syncline between the San Joaquin River and the Bakersfield arch, is similar in style to the northern part of the block, but it has a higher degree of deformation. Miocene or older normal faults trend mostly north to northwest and have a net down-to-the-west displacement with individual offsets of as much as 600 m. The northern Diablo

  10. Crimen y perdón: el juicio en la Habana al gobernador Gabriel de Torres y Velasco por la entrega de la Plaza de Cartagena (1824-1827 = Crime and Pardon: the judgement of governor Gabriel Torres de Velasco in Havana due to his deprivation of Cartagena (1824-1827

    Directory of Open Access Journals (Sweden)

    Cuño Bonito, Justo

    2010-01-01

    Full Text Available A corte marcial dos Capitães Gerais a qual voluntariamente submeteu-se o Brigadeiro Gabriel de Torres y Velasco para limpar seu nome por ter entregado a Praça de Cartagena de Índias foi um julgamento militar que acabou se tornando político. Este caso demonstra o conflito permanente entre liberais e absolutistas, mas também evidencia, por outro lado, os acordos tácitos sobre a necessidade de se manter silêncio sobre os acontecimentos do passado recente. De modo que, durante todo o processo de julgamento, não há referência ao triênio liberal nem à proclamação da Constituição liberal em Cartagena em 1820

  11. Species - San Diego Co. [ds121

    Data.gov (United States)

    California Department of Resources — This is the Biological Observation Database point layer representing baseline observations of sensitive species (as defined by the MSCP) throughout San Diego County....

  12. 33 CFR 165.1102 - Security Zone; Naval Base Point Loma; San Diego Bay, San Diego, CA.

    Science.gov (United States)

    2010-07-01

    ... Loma; San Diego Bay, San Diego, CA. 165.1102 Section 165.1102 Navigation and Navigable Waters COAST... Guard District § 165.1102 Security Zone; Naval Base Point Loma; San Diego Bay, San Diego, CA. (a) Location. The following area is a security zone: The water adjacent to the Naval Base Point Loma, San Diego...

  13. Comment on and reinterpretation of Gabriel et Al. (2014) 'fish mercury and surface water sulfate relationships in the everglades protection area'.

    Science.gov (United States)

    Julian, Paul; Gu, Binhe; Redfield, Garth

    2015-01-01

    Mercury (Hg) methylation and bioaccumulation is a major environmental issue in the Everglades Protection Area (EvPA). Therefore, it is critical to improve our predictive understanding of Hg dynamics. This commentary critically reviews a recently published manuscript concerning the possible relationship between Hg in fish tissue and surface water sulfate within EvPA marshes. The commentary addresses fundamental issues with the authors' data analysis, results and interpretation as well as highlights inconsistencies with published literature and the lack of support for their suggested ecosystem management actions. A number of chemical, biological, and physical factors influence Hg methylation and bioaccumulation, and water sulfate is sometimes viewed as a keystone factor, Gabriel et al. (2014) conclude that Hg bioaccumulation is favored at elevated sulfate concentrations, and suggest mitigation strategies to reduce sulfate inputs to the EvPA. A careful review of their data and conclusions reveals major flaws and in fact, a more straightforward and defensible interpretation of their data would be that no predictable relationship exists between fish tissue Hg and surface water sulfate concentrations in south Florida. Given the complexity of Hg cycling and the influence of trophic and habitat characteristics on aquatic consumer Hg accumulation, expecting one parameter to predict Hg accumulation dynamics within fish species within a dynamic marsh environment is unrealistic. Furthermore, proposing any management guidance from this relationship with little to no quantitative statistical analysis is inappropriate and misleading.

  14. Comment on and Reinterpretation of Gabriel et al. (2014) `Fish Mercury and Surface Water Sulfate Relationships in the Everglades Protection Area'

    Science.gov (United States)

    Julian, Paul; Gu, Binhe; Redfield, Garth

    2015-01-01

    Mercury (Hg) methylation and bioaccumulation is a major environmental issue in the Everglades Protection Area (EvPA). Therefore, it is critical to improve our predictive understanding of Hg dynamics. This commentary critically reviews a recently published manuscript concerning the possible relationship between Hg in fish tissue and surface water sulfate within EvPA marshes. The commentary addresses fundamental issues with the authors' data analysis, results and interpretation as well as highlights inconsistencies with published literature and the lack of support for their suggested ecosystem management actions. A number of chemical, biological, and physical factors influence Hg methylation and bioaccumulation, and water sulfate is sometimes viewed as a keystone factor, Gabriel et al. (2014) conclude that Hg bioaccumulation is favored at elevated sulfate concentrations, and suggest mitigation strategies to reduce sulfate inputs to the EvPA. A careful review of their data and conclusions reveals major flaws and in fact, a more straightforward and defensible interpretation of their data would be that no predictable relationship exists between fish tissue Hg and surface water sulfate concentrations in south Florida. Given the complexity of Hg cycling and the influence of trophic and habitat characteristics on aquatic consumer Hg accumulation, expecting one parameter to predict Hg accumulation dynamics within fish species within a dynamic marsh environment is unrealistic. Furthermore, proposing any management guidance from this relationship with little to no quantitative statistical analysis is inappropriate and misleading.

  15. Mesianismo negativo y novela del dictador: Esteban Echeverría, Miguel Ángel Asturias y Gabriel García Márquez

    Directory of Open Access Journals (Sweden)

    Christian Wehr

    2016-04-01

    Full Text Available En los primeros años de la época romántica se establece un género autóctono de la literatura latinoamericana: la novela del dictador. Se presenta, a pesar de su gran tema histórico y político, como literatura grotesca, carnavalesca, a veces surrealista. Estas tendencias ponen en escena el carácter irracional y paradójico de las dictaduras latinoamericanas. Es poco conocido que el caudillismo emerge de tradiciones religiosas. Las raíces culturales del poder carismático son bíblicas. Por eso, el caudillismo es la manifestación política de un mesianismo decepcionado y pervertido. Los dictadores se presentan como Dioses malvados que gobiernan paraísos malditos. Este discurso alegórico es un rasgo característico de la novela del dictador y da a entender el fundamento metafísico del caudillismo. Él domina ya el texto fundador del género, El Matadero, de Esteban Echevarría, pero también novelas como El Señor Presidente, de Miguel Angel Asturias, o El otoño del Patriarca, de Gabriel García Márquez.

  16. Érase una vez Gabriel García Márquez, el ahogado más Hermoso del mundo

    Directory of Open Access Journals (Sweden)

    Gemma Maria Santiago Alonso

    2002-12-01

    Full Text Available Márquez nos ha devuelto ese entrañable arte de contar cuentos que casi habíamos olvidado. Un ahogado, el más hermoso del mundo, el más bello y grande del mundo, nos recuerda la importancia de un cuento, de una historia susceptible de ser verídica. Su devenir en el cuento de Márquez nos pone en contacto con una realidad que es capaz de cambiar hacia lo inesperado y maravilloso, hacia lo fantástico y mágico, hacia lo realmente irreal de la realidad. Y es que nuestra falta de memoria nos esta deshumanizando. Quizás porque ya no nos creemos nada; porque todos nos hemos vuelto tan hedonistas que olvidamos la esencia, y se nos vuelve la mirada estrábica ante una realidad que se muestra impermeable ante nuestros ojos. Y por eso mismo un día llega don Gabriel y nos recuerda como es todo aquello a lo que estamos dando la espalda, y nos recuenta la realidad a su manera, ómo los cuentos desde la lumbre, y como niños ávidos de nuevas experiencias y vivencias nos quedamos boquiabiertos con nuestro cuentacuentos tiresiano, que no ciego. Despertando de nuestras abulias vitales volvemos a entusiasmarnos con un cuento tan realmente mágico como la vida misma.

  17. Influence of corona discharge on the ozone budget in the tropical free troposphere: a case study of deep convection during GABRIEL

    Science.gov (United States)

    Bozem, H.; Fischer, H.; Gurk, C.; Schiller, C. L.; Parchatka, U.; Koenigstedt, R.; Stickler, A.; Martinez, M.; Harder, H.; Kubistin, D.; Williams, J.; Eerdekens, G.; Lelieveld, J.

    2014-09-01

    Convective redistribution of ozone and its precursors between the boundary layer (BL) and the free troposphere (FT) influences photochemistry, in particular in the middle and upper troposphere (UT). We present a case study of convective transport during the GABRIEL campaign over the tropical rain forest in Suriname in October 2005. During one measurement flight the inflow and outflow regions of a cumulonimbus cloud (Cb) have been characterized. We identified a distinct layer between 9 and 11 km altitude with enhanced mixing ratios of CO, O3, HOx, acetone and acetonitrile. The elevated O3 contradicts the expectation that convective transport brings low-ozone air from the boundary layer to the outflow region. Entrainment of ozone-rich air is estimated to account for 62% (range: 33-91%) of the observed O3. Ozone is enhanced by only 5-6% by photochemical production in the outflow due to enhanced NO from lightning, based on model calculations using observations including the first reported HOx measurements over the tropical rainforest. The "excess" ozone in the outflow is most probably due to direct production by corona discharge associated with lightning. We deduce a production rate of 5.12 × 1028 molecules O3 flash-1 (range: 9.89 × 1026-9.82 × 1028 molecules O3 flash-1), which is at the upper limit of the range reported previously.

  18. 77 FR 57494 - Safety Zone; Fleet Week Fireworks, San Francisco Bay, San Francisco, CA

    Science.gov (United States)

    2012-09-18

    ... SECURITY Coast Guard 33 CFR Part 165 Safety Zone; Fleet Week Fireworks, San Francisco Bay, San Francisco... will enforce the safety zone for the Fleet Week Fireworks in the Captain of the Port, San Francisco...'' W (NAD83) for the Fleet Week Fireworks in 33 CFR 165.1191, Table 1, item number 25. This safety...

  19. 78 FR 10062 - Safety Zone; Sea World San Diego Fireworks, Mission Bay; San Diego, CA

    Science.gov (United States)

    2013-02-13

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Sea World San Diego Fireworks, Mission Bay; San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the navigable waters of Mission Bay in support of the Sea World San Diego...

  20. 77 FR 42649 - Safety Zone: Sea World San Diego Fireworks, Mission Bay; San Diego, CA

    Science.gov (United States)

    2012-07-20

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone: Sea World San Diego Fireworks, Mission Bay; San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is... rule, call or email Petty Officer David Varela, Waterways Management, U.S. Coast Guard Sector San Diego...

  1. 77 FR 60899 - Safety Zone; Sea World San Diego Fireworks, Mission Bay; San Diego, CA

    Science.gov (United States)

    2012-10-05

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Sea World San Diego Fireworks, Mission Bay; San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the navigable waters of Mission Bay in support of the Sea World San Diego...

  2. 77 FR 42638 - Safety Zone: Sea World San Diego Fireworks, Mission Bay; San Diego, CA

    Science.gov (United States)

    2012-07-20

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone: Sea World San Diego Fireworks, Mission Bay; San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the navigable waters of Mission Bay in support of the Sea World San Diego...

  3. 78 FR 29025 - Sea World San Diego Fireworks 2013 Season; Mission Bay, San Diego, CA

    Science.gov (United States)

    2013-05-17

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Sea World San Diego Fireworks 2013 Season; Mission Bay, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a safety zone on the navigable waters of Mission Bay in support of the Sea World San Diego...

  4. 76 FR 46352 - Approval of Noise Compatibility Program for San Diego International, San Diego, CA

    Science.gov (United States)

    2011-08-02

    ... Federal Aviation Administration Approval of Noise Compatibility Program for San Diego International, San Diego, CA AGENCY: Federal Aviation Administration, DOT. ACTION: Notice . SUMMARY: The Federal Aviation Administration (FAA) announces its findings on the noise compatibility program submitted by San Diego Regional...

  5. 78 FR 77597 - Safety Zone; Allied PRA-Solid Works, San Diego Bay; San Diego, CA

    Science.gov (United States)

    2013-12-24

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Allied PRA-Solid Works, San Diego Bay; San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the navigable waters of the San Diego Bay in support of a fireworks...

  6. Cuartel San Carlos. Yacimiento veterano

    Directory of Open Access Journals (Sweden)

    Mariana Flores

    2007-01-01

    Full Text Available El Cuartel San Carlos es un monumento histórico nacional (1986 de finales del siglo XVIII (1785-1790, caracterizado por sufrir diversas adversidades en su construcción y soportar los terremotos de 1812 y 1900. En el año 2006, el organismo encargado de su custodia, el Instituto de Patrimonio Cultural del Ministerio de Cultura, ejecutó tres etapas de exploración arqueológica, que abarcaron las áreas Traspatio, Patio Central y las Naves Este y Oeste de la edificación. Este trabajo reseña el análisis de la documentación arqueológica obtenida en el sitio, a partir de la realización de dicho proyecto, denominado EACUSAC (Estudio Arqueológico del Cuartel San Carlos, que representa además, la tercera campaña realizada en el sitio. La importancia de este yacimiento histórico, radica en su participación en los acontecimientos que propiciaron conflictos de poder durante el surgimiento de la República y en los sucesos políticos del siglo XX. De igual manera, se encontró en el sitio una amplia muestra de materiales arqueológicos que reseñan un estilo de vida cotidiana militar, así como las dinámicas sociales internas ocurridas en el San Carlos, como lugar estratégico para la defensa de los diferentes regímenes que atravesó el país, desde la época del imperialismo español hasta nuestros días.

  7. MACROSCOPIC RIVERS

    NARCIS (Netherlands)

    VANDENBERG, IP

    1991-01-01

    We present a mathematical model for the ''river-phenomenon'': striking concentrations of trajectories of ordinary differential equations. This model of ''macroscopic rivers'' is formulated within nonstandard analysis, and stated in terms of macroscopes and singular perturbations. For a subclass, the

  8. Downtown revitalization in San Salvador

    OpenAIRE

    Ejeborn, Elisabet; Nedersjö, Julia

    2012-01-01

    The aim of this master’s thesis in spatial planning is to research the conditions in the historic city centre of San Salvador and make a strategy and urban design proposal for the area, but also to investigate the relationship between economic development, public institutions and the public space in this area. The research has been done through literature studies on El Salvador and formal/informal economy, onsite inventory, studies of good examples and interviews with people in the area. In t...

  9. Downtown revitalization in San Salvador

    OpenAIRE

    Ejeborn, Elisabet; Nedersjö, Julia

    2012-01-01

    The aim of this master’s thesis in spatial planning is to research the conditions in the historic city centre of San Salvador and make a strategy and urban design proposal for the area, but also to investigate the relationship between economic development, public institutions and the public space in this area. The research has been done through literature studies on El Salvador and formal/informal economy, onsite inventory, studies of good examples and interviews with people in the area. In t...

  10. Trouble Brewing in San Francisco. Policy Brief

    Science.gov (United States)

    Buck, Stuart

    2010-01-01

    The city of San Francisco will face enormous budgetary pressures from the growing deficits in public pensions, both at a state and local level. In this policy brief, the author estimates that San Francisco faces an aggregate $22.4 billion liability for pensions and retiree health benefits that are underfunded--including $14.1 billion for the city…

  11. “The Law of Abraham the Catholic”: Juan Gabriel as Qur’ān Translator for Martín de Figuerola and Egidio da Viterbo

    Directory of Open Access Journals (Sweden)

    García-Arenal, Mercedes

    2014-12-01

    Full Text Available The main aim of this article is to investigate the similarities between the Latin translation of the Qur’ān commissioned by the Italian cardinal Egidio da Viterbo (first version, 1518 and Quranic quotations included in a treatise entitled Lumbre de fe contra el Alcorán (Valencia, 1521 authored by a Catholic preacher, Fray Johan Martín de Figuerola, in order to corroborate the hypothesis that the texts share a common author. The person regarded as the link between them is a convert from Islam to Christianity known as Juan Gabriel from Teruel, formerly Ali Alayzar. The arguments in favour of this thesis are presented, first of all, within a historical description of the circumstances and coincidences of the people involved in the production of the two translation projects; secondly, textual evidence is put forward in which correspondences, similarities and differences are highlighted and discussed. We also consider the similarities to the quotations in Juan Andrés’s Confusión o confutación del Alcorán, drawing attention to a circle of other Christian polemicists around Martín García who were all working in various ways with the Arabic Qur’ān.Este artículo se propone estudiar las similitudes entre la traducción latina del Corán encargada por el cardenal Egidio de Viterbo en 1518 y las citas coránicas incluidas en un tratado de polémica titulado Lumbre de fe contra el Alcorán (Valencia, 1521 escrito por un predicador, Fray Martín de Figuerola. Estas similitudes serán destacadas para corroborar la hipótesis de una autoría común a ambas traducciones en la persona de un mudéjar convertido al catolicismo, Juan Gabriel de Teruel, antes llamado Ali Alayzar. Los argumentos en favor de esta tesis se presentan primero en términos de la descripción de las circunstancias y coincidencias de las personas involucradas en ambos proyectos de traducción y en segundo lugar en las coincidencias, similitudes y características comunes a

  12. The state of permafrost surrounding "Gabriel de Castilla" Spanish Antarctic Station (Deception Island, Antarctica): Studying the possible degradation due to the infrastructures heating effect.

    Science.gov (United States)

    Recio, Cayetana; Ángel de Pablo, MIguel; Ramos, MIguel; Molina, Antonio

    2015-04-01

    Permafrost degradation is one of the effects of the global warming. Many studies reveal the increase of active layer and reduction on permafrost table thickness, also in Antarctica. However, these trends on permafrost can be accelerated by the human activities, as the heating produced by the Antarctic stations infrastructures when they are not properly isolated from the ground. In Deception island, South Shetland Archipelago, we started 3 years ago a monitoring program at the 26 years old "Gabriel de Castilla" Spanish Antarctic Station (SAS), It is focused on charactering the state of permafrost, since in the coastal scarps at tens of meters from the station an increase on erosion had been detected. Although the main cause of the erosion of this coastal volcanoclastic materials is the 2 meters thick icefield which forms during the winter in the inner sea of this volcanic island, we want to detect any possible contribution to the coastal erosion caused by the permafrost degradation related to the SAS presence. We present our preliminary analysis based on three years of continuous ground temperature data, monitored at a shallow borehole (70 cm deep) in the SAS edge, together with the active layer thickness measured around the station and their vicinities in two thawing seasons. We complete this study with the analysis of the continuous temperature data taken inside the SAS and the air and ground temperatures below the station, acquired during the last Antarctic Campaign (December 2014-February 2015). These preliminary results are fundamental 1) to discard any contribution from the SAS presence, and to help to improve its thermal isolation, 2) to help improve our knowledge about the thermal state of permafrost in the area, and 3) to help to understand the causes of the coastal erosion in the volcanic Deception Island.

  13. Gabriel Velásquez Palau, Educador visionario, el gran reformador de la educación Médica Colombiana

    Directory of Open Access Journals (Sweden)

    José Felix Patiño Restrepo

    2015-06-01

    Full Text Available Hay hombres que dejan huella profunda en el devenir histórico de una nación. Tal es, ciertamente, el caso de Gabriel Velásquez Palau, Miembro Honorario de la Academia Nacional de Medicina de Colombia, un educador de vocación profunda, líder intelectual, ejecutor paradigmático. Tuve la fortuna de conocerlo muy de cerca porque trabajamos juntos, con un grupo inolvidable de médicos de las siete facultades de medicina de la época, en la reforma de la educación médica de Colombia. Finalizando la primera mitad del siglo XX, la educación médica colombiana fue calificada muy mal por la Misión Humpreys, o Misión Médica Unitaria, contratada por el Gobierno con el fin de evaluar las escuelas de medicina. “La misión describió el panorama encontrado, que no era muy diferente del reportado por la Misión francesa2: un predominio absoluto de la enseñanza magistral –al modo de la escolástica–, dificultades en la contratación y ascenso de profesores, por lo cual se contaba con un escaso recurso docente, pobre supervisión de las prácticas clínicas y nula investigación. Además, se destacó la ausencia de programas formales de residencia para entrenamiento de posgrado.” (Pineda, 2014 ...

  14. Effects of land-cover change on soil loss in the Sao Gabriel do Oeste area (Pantanal, Mato Grosso do Sul, Brazil)

    Science.gov (United States)

    Disperati, Leonardo; Righini, Gaia; Salvini, Riccardo; Ciali, Alessandro; Coscini, Nicola; Fantozzi, Pier L.; Carmignani, Luigi; Fiori, Alberto P.; Paranhos Filho, Antonio C.; Bocci, Michele

    1999-12-01

    In the Sao Gabriel do Oeste area (Pantanal, Brazil), since the '60s, zootechnics and farming activities have developed and arable lands and pastures replaced shrubs and forests. The 1966 to 1996 land-cover change was investigated through Remote Sensing and GIS methodologies. The effect on soil loss was evaluated through the Universal Soil Loss Equation (USLE). By integrating supervised classification and visual interpretation techniques, geo-coded land-cover data bases were built from aerial photographs and Landsat TM images (years 1966, 1985, 1996). Multi-temporal land-cover data bases were produced through 'post-classification comparison.' The application of the USLE in the ARC/INFO$CPY Grid environment enabled to perform the multi-temporal analysis of the potential soil loss. The R, K, C and P factors of such equation were assumed from the literature. The flowdirection and flowaccumulation Grid functions and the DEM allowed calculating the L and S factors. The results show that from 1966 to 1985 large extent of forest and shrubs were deforested. After 1985, deforestation rate decreased and part of burnt areas and pastures changed to secondary forest. The land-cover transformations induced a meaningful growth of the computed average soil loss per unit area (A) from 1966 to 1985 ((Delta) A approximately equals 3.7 t(DOT)ha-1(DOT)y-1). On the contrary, the reduction of A from 1985 to 1996 ((Delta) A approximately equals 0.8 t(DOT)ha-1(DOT)y-1) suggests that more recently the human impact became steady.

  15. Bedrock aquifers of eastern San Juan County, Utah

    Science.gov (United States)

    Avery, Charles

    1986-01-01

    This study is one of a series of studies appraising the waterbearing properties of the Navajo Sandstone and associated formations in southern Utah.  The study area is about 4,600 square miles, extending from the Utah-Arizona State line northward to the San Juan-Grand County line and westward from the Utah-Colorado State line to the longitude of about 109°50'.Some of the water-yielding formations are grouped into aquifer systems. The C aquifer is comprised of the DeChelly Sandstone Member of the Cutler Formation.  The P aquifer is comprised of the Cedar Mesa Member of the Cutler Formation and the undifferentiated Cutler Formation. The N aquifer is comprised of the sedimentary section that includes the Wingate Sandstone, Kayenta Formation, Navajo Sandstone, Carmel Formation, and Entrada sandstone.  The M aquifer is comprised of the Bluff Sandstone Member and other sandstone units of the Morrison Formation.  The D aquifer is comprised of the Burro Canyon Formation and Dakota Sandstone.  Discharge from the ground-water reservoir to the San Juan River between gaging stations at Four Corners and Mexican Hat is about 66 cubic feet per second.The N aquifer is the main aquifer in the study area. Recharge by infiltration of precipitation is estimated to be 25,000 acre-feet per year.  A major ground-water divide exists under the broad area east of Monticello.  The thickness of the N aquifer, where the sedimentary section is fully preserved and saturated, generally is 750 to 1,250 feet.   Hydraulic conductivity values obtained from aquifer tests range from 0.02 to 0.34 foot per day.  The total volume of water in transient storage is about 11 million acre-feet. Well discharge somewhat exceeded 2,340 acre-feet during 1981.  Discharge to the San Juan River from the N aquifer is estimated to be 6.9 cubic feet per second. Water quality ranges from a calcium bicarbonate to sodium chloride type water

  16. Caracterização fenológica e requerimentos térmicos de variedades de uvas sem sementes no Vale do São Francisco Phenological evaluation and thermal requirements of five seedless grapes in the San Francisco River Valley

    Directory of Open Access Journals (Sweden)

    Patricia Coelho de Souza Leão

    2003-12-01

    Full Text Available O comportamento fenológico e requerimentos térmicos de variedades de uvas sem sementes foram estudados nas condições do Vale do São Francisco durante os anos de 2001-2002, em seis diferentes datas de poda (12/2000, 04/2001, 06/2001, 10/2001, 01-02/2002 e 04/2002. O experimento foi realizado no Campo Experimental de Bebedouro, em Petrolina-PE. As variedades utilizadas foram Superior Seedless (Festival, Thompson Seedless, Catalunha, Perlette e Marroo Seedless, enxertadas sobre porta-enxerto IAC 572 ('Jales'. Avaliou-se a duração em dias dos estádios fenológicos, gemas dormentes (data de poda a gemas inchadas (1, gemas inchadas a início de brotação (2, início de brotação a 5-6 folhas separadas (3, 5-6 folhas separadas a início de floração (4, início de floração à plena-floração (5, plena-floração a "chumbinho" (6, "chumbinho" à "ervilha" (7, "ervilha" a ½ baga (8, ½ baga a início de maturação (9 e início de maturação à maturação plena (10. Os requerimentos térmicos foram obtidos em termos de graus-dia (GD necessários para atingir cada fase fenológica a partir da poda. O ciclo fenológico médio variou de 89 dias e 1.315 GD na variedade Superior Seedless a 105 dias e 1.514 GD na variedade Perlette, destacando-se as variedades Superior Seedless e Marroo Seedless como precoces e as demais com ciclo intermediário. Os períodos compreendidos entre o início e final da maturação, ½ baga a início de maturação e 5 a 6 folhas separadas a início de floração apresentaram a maior duração entre todos os subperíodos em todas as variedades.The phenological behaviour and heat summation requirements of seedless grapes were studied in the San Francisco River Valley during the seasons 2001-2002, for six pruning dates (12/2000, 04/2001, 06/2001, 10/2001, 01 and 02/2002 and 04/2002. The varieties evaluated were Superior Seedless (Festival, Thompson Seedless, Catalunha, Perlette and Marroo Seedless, grafted on IAC

  17. Heavy mineral analysis for assessing the provenance of sandy sediment in the San Francisco Bay Coastal System

    Science.gov (United States)

    Wong, F. L.; Woodrow, D. L.; McGann, M. L.

    2012-12-01

    Heavy minerals have been used to trace the sources and transportation of sandy sediment in San Francisco Bay and nearby coastal areas since the 1960s. We have the opportunity to sample similar environments and revisit the heavy mineral populations under the current San Francisco Coastal System study of the provenance of beach sand. Most of the sandy sediment in San Francisco Bay can be traced to distant sources including the Sierra Nevada batholith and associated terranes with local contributions from the Franciscan Complex. Heavy minerals from Sierran sources include ordinary hornblende, metamorphic amphiboles, and hypersthene while those from the Franciscan Complex include other types of pyroxene, epidote, basaltic hornblende, and glaucophane... Tertiary strata and volcanics in the surrounding hills and displaced Sierran rocks found on the continental shelf west of the San Andreas Fault Zone introduce similar minerals, but perhaps in a lesser volume to be identified as major contributors... The primary result of cluster analysis of heavy minerals separated from sand-sized sediment taken within San Francisco Bay, the adjacent continental shelf, local beaches, cliffs outside the Golden Gate, and upstream drainages indicate a widespread occurrence of sediment traceable to the Sierra Nevada. A second cluster of samples identifies samples of mixed Sierran and Franciscan lineage within the strait of the Golden Gate, on the San Francisco bar, and on coastal beaches. Sediment samples with predominantly Franciscan mineral content appear on beaches around Point Reyes, possibly transported from the Russian River. The heavy mineral composition supports transport from the east, through San Francisco Bay and out the Golden Gate to the San Francisco bar and southward.

  18. Gabrielė Petkevičaitė-Bitė: neįgalaus kūno asmens savivokos formavimosi įtampa | Gabrielė Petkevičaitė-Bitė: tension in the formation of self-concept of disabled individual

    Directory of Open Access Journals (Sweden)

    Aistė Birgerytė

    2006-01-01

    Full Text Available The paper presents an interpretation of the autobiographic writings of Gabrielė Petkevičaitė-Bitė, a prominent Lithuanian female writer and a cultural character of the late 1890s and early 1900s. The paper analyses why the disabled female writer had never put any stress on her illness in public (in her childhood she had a twisted spine and stayed a “hunchback” for the rest of her life, had a week nervous system, later had a softened knee-joint and barely could walk, and at the end of her life, she hardly could see and hear. Rather opposite, she identified herself with straight positive views – aspiring “to work for the welfare of the public”, “to disregard private interests” – and even ignored her private experience altogether.On the foundation of the contemporary cultural theories of disability (Simi Linton, Rosemarie Garland Thomson, Lennard J. Davis, the paper aims to reveal the formation of Bitė’s dual rhetorics which uncovers the history of the writer’s identity and the dramatism of her eternal existence “between”. From the point of view of the disability studies, the paper looks into the life of the writer���s parents’ family, which largely shaped Bitė’s consciousness and predetermined her choices. The paper investigates the link between the Bitė’s family philanthropic ideology and personal circumstances (in addition to Gabrielė, there were four other sick children, in Petkevičiai family; the writer’s parents’ attitude towards their daughter’s disability (lameness was not interpreted negatively, it was generally ignored; the father’s arguments not to allow the disabled daughter to pursue higher education. The paper also discusses the issue of the positive outlook on different nations, languages, cultures and gender and reserved opinions about disability that existed in Petkevičiai family.The paper concludes that the background of the writer’s parents’ family, discussed from the

  19. Joanna de San Esteban: peril hagiográico de una vida ejemplar en los albores de la Independencia

    Directory of Open Access Journals (Sweden)

    María Constanza Toquica Clavijo

    2011-01-01

    Full Text Available Bajo los parámetros conceptuales de Michel de Certeau, el texto presenta la hagiografía de la monja clarisa Joanna María de San Esteban. La investigación se efectuó en el Archivo Privado del Convento de Santa Clara, donde se encontró la Colección de la vida ejemplar de Joanna de San Esteban, obra inédita de inales del siglo XVIII (1790, escrita por el presbítero Martín Palacios Galán. Una de las preguntas centrales que enfocan esta interpretación de la biografía de Joanna fue la que me permitió ir descubriendo por qué era importante, en ese punto de la línea temporal, narrar un modelo religioso de vida ejempliicante que, como lo comunica el mismo texto hagiográico, ya estaba entrando en desuso. Nuevos aires aparecen a inales del siglo XVIII en los territorios de ultramar derivados de la Ilustración, de la Revolución Francesa y de las políticas borbónicas de Carlos III, cuyo efecto más contundente en el campo religioso fue la expulsión de los jesuitas, y en el cultural, nuevos textos escriturísticos y pictóricos producidos en la Nueva Granada. También variaron mente sus contextos de producción y sus formas de circulación, como se puede observar en la producción de imágenes de la Expedición Botánica y en los textos periodísticos que se comenzaron a publicar. De Joanna de San Esteban (1642 – 1708 también se tiene noticia en la obra De la ejemplar vida y muerte dichosa de doña Francisca Zorrilla, escrita por su padre don Gabriel álvarez de Velasco, cuando habla de su madre, también una mujer sobresaliente. Joanna tuvo un hermano jesuita, el padre Gabriel álvarez de Velasco y Zorrilla. Lo importante para mí en este documento es rastrear cómo y por qué se construye un modelo de sujeto barroco en extinción, y cuál es su función social como documento historiográico. No su “vida real”, que jamás la conoceremos a pesar de conocer su imagen “idealizada” y su desafortunado retrato, realizado por una

  20. Small angle neutron scattering (SANS and V-SANS) study of asphaltene aggregates in crude oil.

    Science.gov (United States)

    Headen, Thomas F; Boek, Edo S; Stellbrink, Jörg; Scheven, Ulrich M

    2009-01-06

    We report small angle neutron scattering (SANS) experiments on two crude oils. Analysis of the high-Q SANS region has probed the asphaltene aggregates in the nanometer length scale. We find that the radius of gyration decreases with increasing temperature. We show that SANS measurements on crude oils give similar aggregate sizes to those found from SANS measurements of asphaltenes redispersed in deuterated toluene. The combined use of SANS and V-SANS on crude oil samples has allowed the determination of the radius of gyration of large scale asphaltene aggregates of approximately 0.45 microm. This has been achieved by the fitting of Beaucage functions over two size regimes. Analysis of the fitted Beaucage functions at very low-Q has shown that the large scale aggregates are not simply made by aggregation of all the smaller nanoaggregates. Instead, they are two different aggregates coexisting.

  1. Real maravilhoso e cinema: o universo ficcional de Gabriel García Márquez revisitado nos filmes Como água para chocolate e A casa dos espíritos

    OpenAIRE

    2014-01-01

    Este estudo inicialmente parte da noção de Real Maravilhoso tomando os principais estudiosos do tema e posteriormente ressalta os elementos significativos na escrita do colombiano Gabriel García Márquez, principalmente em sua obra Cem anos de solidão de 1967. O escritor ao tornar-se uma das figuras mais importantes da vertente literária do Real Maravilhoso e um dos nomes mais citados do boom da literatura latino-americana, extrapola o âmbito literário, emprestando seu estilo a outras manifest...

  2. Diagnóstico de la vulnerabilidades informáticas en los sistemas de información para proponer soluciones de seguridad a la rectificadora Gabriel Mosquera S.A.

    OpenAIRE

    Pintado Cuji, Karen Andrea; Hurtado Valero, Cesar Luis

    2015-01-01

    En la presente tesis se realizó el diagnóstico de las vulnerabilidades informáticas para proponer soluciones de Seguridad a la empresa RECTIFICADORA GABRIEL MOSQUERA S.A. Frente a la necesidad de proteger los sistemas que manejan información delicada y sensible de la empresa, los autores del presente proyecto proponen llevar a cabo una evaluación de los riesgos y desarrollar un plan de mitigación de los mismos, utilizando las metodologías MSAT y OCTAVE -S. Se escogieron estas herramientas d...

  3. Tópicos amorosos de los poetas elegiacos latinos en el <> de Gabriel García Márquez

    OpenAIRE

    Santo-Rosa Carballo, Isabel

    1986-01-01

    En el presente artículo se estudia la novela El amor en los tiempos del cólera de Gabriel García Márquez considerando la influencia que los poetas elegiacos latinos —Catulo, Propercio, Tibulo y Ovidio— han podido tener en el tratamiento que el autor hace del tema amoroso. Tópicos como SIGNUM AMORIS, FUROR AMORIS, MILITIA AMORIS, SERVITIUM AMORIS o EXCLUSUS AMATOR se analizan dentro de lo que entonces fue una nueva estética y se verifica su presencia en esta obra. Mediante esta labor de ...

  4. The Influence of William Faulkner in the Works of Gabriel García Márquez : A Rose for Emily and Cien años de soledad

    OpenAIRE

    2004-01-01

    En su obra maestra Cien ethos de soledad (1967), Gabriel Garcia Marquez adapta e incorpora uno de los mejores cuentos de William Faulkner, "A Rose for Emily, transformando a su protagonista Emily en tres mujeres de la familia Buendia -- Rebeca, Amaranta y Fernanda. Rebeca es una Emily marqueciana que ya habia aparecido en sus primeras obras como La hojarasca (1955) y "Un dia despues del sabado" (1962). En estas obras aparece como una viuda anciana que vive sola en una casa vieja despues de la...

  5. The ecology of the soft-bottom benthos of San Francisco Bay: a community profile

    Science.gov (United States)

    Nichols, Frederic H.; Pamatmat, Mario M.

    1988-01-01

    This profile, part of a series of profiles concerning coastal habitats of the United States, is a detailed examination of the soft-bottom benthos of San Francisco Bay. A U.S. Fish and Wildlife Service and California Department of Fish and Game report (1979) entitled "Protection and Restoration of San Francisco Bay Fish and Wildlife Habitat" provides clear recognition of the importance of intertidal and subtidal soft-bottom habitats and their associated organisms to the bay's birds and fishes and to the overall functioning of the estuary. The purpose of this profile is to provide a description of the structure and functioning of the benthic community in San Francisco Bay (exclusive of its tidal marshes, which are discussed by M. Josselyn [1983] in another profile). The habitats covered in this volume include all nonvegetated soft-bottom intertidal and subtidal areas of the bay between the Golden Gate and the mouths of the Sacramento and San Joaquin Rivers to the northeast, and to the southern extremity of the bay.

  6. Vertical tectonic deformation associated with the San Andreas fault zone offshore of San Francisco, California

    Science.gov (United States)

    Ryan, H. F.; Parsons, T.; Sliter, R. W.

    2008-10-01

    A new fault map of the shelf offshore of San Francisco, California shows that faulting occurs as a distributed shear zone that involves many fault strands with the principal displacement taken up by the San Andreas fault and the eastern strand of the San Gregorio fault zone. Structures associated with the offshore faulting show compressive deformation near where the San Andreas fault goes offshore, but deformation becomes extensional several km to the north off of the Golden Gate. Our new fault map serves as the basis for a 3-D finite element model that shows that the block between the San Andreas and San Gregorio fault zone is subsiding at a long-term rate of about 0.2-0.3 mm/yr, with the maximum subsidence occurring northwest of the Golden Gate in the area of a mapped transtensional basin. Although the long-term rates of vertical displacement primarily show subsidence, the model of coseismic deformation associated with the 1906 San Francisco earthquake indicates that uplift on the order of 10-15 cm occurred in the block northeast of the San Andreas fault. Since 1906, 5-6 cm of regional subsidence has occurred in that block. One implication of our model is that the transfer of slip from the San Andreas fault to a fault 5 km to the east, the Golden Gate fault, is not required for the area offshore of San Francisco to be in extension. This has implications for both the deposition of thick Pliocene-Pleistocene sediments (the Merced Formation) observed east of the San Andreas fault, and the age of the Peninsula segment of the San Andreas fault.

  7. 75 FR 55270 - Safety Zone; NASSCO Launching of USNS Washington Chambers, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2010-09-10

    ... Chambers, San Diego Bay, San Diego, CA AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a temporary safety zone on the navigable waters of the San Diego Bay in... the Port (COTP) San Diego or his designated representative. DATES: This rule is effective from 9:15 a...

  8. Description of gravity cores from San Pablo Bay and Carquinez Strait, San Francisco Bay, California

    Science.gov (United States)

    Woodrow, Donald L.; John L. Chin,; Wong, Florence L.; Fregoso, Theresa; Jaffe, Bruce E.

    2017-06-27

    Seventy-two gravity cores were collected by the U.S. Geological Survey in 1990, 1991, and 2000 from San Pablo Bay and Carquinez Strait, California. The gravity cores collected within San Pablo Bay contain bioturbated laminated silts and sandy clays, whole and broken bivalve shells (mostly mussels), fossil tube structures, and fine-grained plant or wood fragments. Gravity cores from the channel wall of Carquinez Strait east of San Pablo Bay consist of sand and clay layers, whole and broken bivalve shells (less than in San Pablo Bay), trace fossil tubes, and minute fragments of plant material.

  9. AN ACCURACY ASSESSMENT OF 1997 LANDSAT THEMATIC MAPPER DERIVED LAND COVER FOR THE UPPER SAN PEDRO WATERSHED (U.S./MEXICO)

    Science.gov (United States)

    High-Resolution airborne color video data were used to evaluate the accuracy of a land cover map of the upper San Pedro River watershed, derived from June 1997 Landsat Thematic Mapper data. The land cover map was interpreted and generated by Instituto del Medio Ambiente y el Bes...

  10. AN ACCURACY ASSESSMENT OF 1997 LANDSAT THEMATIC MAPPER DERIVED LAND COVER FOR THE UPPER SAN PEDRO WATERSHED (U.S./MEXICO)

    Science.gov (United States)

    High-Resolution airborne color video data were used to evaluate the accuracy of a land cover map of the upper San Pedro River watershed, derived from June 1997 Landsat Thematic Mapper data. The land cover map was interpreted and generated by Instituto del Medio Ambiente y el Bes...

  11. A Climate, water management, and policy in the San Pedro Basin: Results of a survey of Mexican stakeholders near the U.S.–Mexico border 1936

    Science.gov (United States)

    This paper reviews regional climate knowledge and vulnerability in the northern Mexico San Pedro River Basin, with a focus on water quality, quantity, and management issues on the Mexican side of the border. A discussion based on the available literature is supplemented by a survey assessing concern...

  12. San Luis Valley waterbird plan : Draft

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The goal of this plan is "to provide and protect a habitat base of sufficient quality and quantity to maintain healthy viable populations of waterbirds in the San...

  13. Historical methyl mercury in San Francisco Bay

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — San Francisco Bay, California is considered a mercury-impaired watershed. Elevated concentrations of mercury are found in water and sediment as well as fish and...

  14. Bathymetry--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the bathymetry and shaded-relief maps of Offshore of San Francisco, California (raster data file is included in...

  15. Backscatter A [8101]--Offshore San Gregorio, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the acoustic-backscatter map (see sheet 3, SIM 3306) of the Offshore of San Gregorio map area, California. Backscatter data...

  16. Habitat--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of San Francisco map area, California. The vector data file is included in...

  17. San Antonio Bay 1986-1989

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The effect of salinity on utilization of shallow-water nursery habitats by aquatic fauna was assessed in San Antonio Bay, Texas. Overall, 272 samples were collected...

  18. Habitat--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the habitat map of the seafloor of the Offshore of San Francisco map area, California. The vector data file is included in...

  19. Contours--Offshore of San Francisco, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of DS 781 presents data for the bathymetric contours for several seafloor maps of the Offshore of San Francisco map area, California. The vector data file...

  20. Backscatter B [7125]--Offshore San Gregorio, California

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This part of SIM 3306 presents data for the acoustic-backscatter map (see sheet 3, SIM 3306) of the Offshore of San Gregorio map area, California. Backscatter data...

  1. San Bernardino National Wildlife Refuge contaminant study

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The San Bernardino National Wildlife Refuge was established in 1982 for the protection and management of endangered desert fishes which are indigenous to the Rio...

  2. Monitoring organo chlorine pesticides in surface and ground water in San Juan (Argentina); Determinacion de pesticiddas organoclorados en aguas superficiales y subterraneas de la provincia de San Juan (Argentina)

    Energy Technology Data Exchange (ETDEWEB)

    Omar, B.; Suero, E.; Augusto, M.; Gimenez, M.; Flores, N.

    2003-07-01

    The level of contamination with organo chlorine pesticides and the occurrence of their degradation products in the basins of the two main rivers. San Juan and Jackal, of the Province of San Juan, Argentina, were determined. Surface and groundwater samples from both river basins were evaluated by capillary GC and results confirmed with Mass Spectrometry. Chemicals investigated were 16 organo chlorine pesticides. For a total number of 314 samples, the percentage of positive samples ranged from 68.6% for Heptachlor to 16% for Aldrin. concentration values and the percentage of positive samples in groundwater were significantly lower than those found in surface water. Samples taken in different seasons did not show significant differences. (Author) 18 refs.

  3. SSC San Diego Strategic Plan. Revision 3

    Science.gov (United States)

    2001-11-01

    OMB control number. 1. REPORT DATE NOV 2001 2. REPORT TYPE 3. DATES COVERED - 4. TITLE AND SUBTITLE SSC San Diego Strategic Plan. Rev 3 5a...Business Improvement Group ( CBIG ), will be composed of the team members listed above, and will be responsible for monitoring the planning and...implementation of these objectives. The CBIG will charter sub-groups as necessary. Improve Corporate IT infrastructure Much of the SSC San Diego IT service

  4. Trouble Brewing in San Diego. Policy Brief

    Science.gov (United States)

    Buck, Stuart

    2010-01-01

    The city of San Diego will face enormous budgetary pressures from the growing deficits in public pensions, both at a state and local level. In this policy brief, the author estimates that San Diego faces total of $45.4 billion, including $7.95 billion for the county pension system, $5.4 billion for the city pension system, and an estimated $30.7…

  5. Chemistry, transport and dry deposition of trace gases in the boundary layer over the tropical Atlantic Ocean and the Guyanas during the GABRIEL field campaign

    Directory of Open Access Journals (Sweden)

    A. Stickler

    2007-07-01

    Full Text Available We present a comparison of different Lagrangian and chemical box model calculations with measurement data obtained during the GABRIEL campaign over the tropical Atlantic Ocean and the Amazon rainforest in the Guyanas, October 2005. Lagrangian modelling of boundary layer (BL air constrained by measurements is used to derive a horizontal gradient (≈5.6 pmol/mol km−1 of CO from the ocean to the rainforest (east to west. This is significantly smaller than that derived from the measurements (16–48 pmol/mol km−1, indicating that photochemical production from organic precursors alone cannot explain the observed strong gradient. It appears that HCHO is overestimated by the Lagrangian and chemical box models, which include dry deposition but not exchange with the free troposphere (FT. The relatively short lifetime of HCHO implies substantial BL-FT exchange. The mixing-in of FT air affected by African and South American biomass burning at an estimated rate of 0.12 h−1 increases the CO and decreases the HCHO mixing ratios, improving agreement with measurements. A mean deposition velocity of 1.35 cm/s for H2O2 over the ocean as well as over the rainforest is deduced assuming BL-FT exchange adequate to the results for CO. The measured increase of the organic peroxides from the ocean to the rainforest (≈0.66 nmol/mol d−1 is significantly overestimated by the Lagrangian model, even when using high values for the deposition velocity and the entrainment rate. Our results point at either heterogeneous loss of organic peroxides and/or their radical precursors, underestimated photodissociation or missing reaction paths of peroxy radicals not forming peroxides in isoprene chemistry. We calculate a mean integrated daytime net ozone production (NOP in the BL of (0.2±5.9 nmol/mol (ocean and (2.4±2.1 nmol/mol (rainforest. The NOP strongly correlates with NO and has a positive tendency in

  6. Abrupt along-strike change in tectonic style: San Andreas Fault zone, San Francisco Peninsula

    Science.gov (United States)

    Zoback, Mary Lou; Jachens, Robert C.; Olson, Jean A.

    1999-05-01

    Seismicity and high-resolution aeromagnetic data are used to define an abrupt change from compressional to extensional tectonism within a 10- to 15-km-wide zone along the San Andreas fault on the San Francisco Peninsula and offshore from the Golden Gate. This 100-km-long section of the San Andreas fault includes the hypocenter of the Mw = 7.8 1906 San Francisco earthquake as well as the highest level of persistent microseismicity along that ˜470-km-long rupture. We define two distinct zones of deformation along this stretch of the fault using well-constrained relocations of all post-1969 earthquakes based a joint one-dimensional velocity/hypocenter inversion and a redetermination of focal mechanisms. The southern zone is characterized by thrust- and reverse-faulting focal mechanisms with NE trending P axes that indicate "fault-normal" compression in 7- to 10-km-wide zones of deformation on both sides of the San Andreas fault. A 1- to 2-km-wide vertical zone beneath the surface trace of the San Andreas is characterized by its almost complete lack of seismicity. The compressional deformation is consistent with the young, high topography of the Santa Cruz Mountains/Coast Ranges as the San Andreas fault makes a broad restraining left bend (˜10°) through the southernmost peninsula. A zone of seismic quiescence ˜15 km long separates this compressional zone to the south from a zone of combined normal-faulting and strike-slip-faulting focal mechanisms (including a ML = 5.3 earthquake in 1957) on the northernmost peninsula and offshore on the Golden Gate platform. Both linear pseudogravity gradients, calculated from the aeromagnetic data, and seismic reflection data indicate that the San Andreas fault makes an abrupt ˜3-km right step less than 5 km offshore in this northern zone. A similar right-stepping (dilatational) geometry is also observed for the subparallel San Gregorio fault offshore. Persistent seismicity and extensional tectonism occur within the San Andreas

  7. Adaptive Management Methods to Protect the California Sacramento-San Joaquin Delta Water Resource

    Science.gov (United States)

    Bubenheim, David

    2016-01-01

    The California Sacramento-San Joaquin River Delta is the hub for California's water supply, conveying water from Northern to Southern California agriculture and communities while supporting important ecosystem services, agriculture, and communities in the Delta. Changes in climate, long-term drought, water quality changes, and expansion of invasive aquatic plants threatens ecosystems, impedes ecosystem restoration, and is economically, environmentally, and sociologically detrimental to the San Francisco Bay/California Delta complex. NASA Ames Research Center and the USDA-ARS partnered with the State of California and local governments to develop science-based, adaptive-management strategies for the Sacramento-San Joaquin Delta. The project combines science, operations, and economics related to integrated management scenarios for aquatic weeds to help land and waterway managers make science-informed decisions regarding management and outcomes. The team provides a comprehensive understanding of agricultural and urban land use in the Delta and the major water sheds (San Joaquin/Sacramento) supplying the Delta and interaction with drought and climate impacts on the environment, water quality, and weed growth. The team recommends conservation and modified land-use practices and aids local Delta stakeholders in developing management strategies. New remote sensing tools have been developed to enhance ability to assess conditions, inform decision support tools, and monitor management practices. Science gaps in understanding how native and invasive plants respond to altered environmental conditions are being filled and provide critical biological response parameters for Delta-SWAT simulation modeling. Operational agencies such as the California Department of Boating and Waterways provide testing and act as initial adopter of decision support tools. Methods developed by the project can become routine land and water management tools in complex river delta systems.

  8. Record-high specific conductance and water temperature in San Francisco Bay during water year 2015

    Science.gov (United States)

    Work, Paul; Downing-Kunz, Maureen; Livsey, Daniel

    2017-02-22

    The San Francisco estuary is commonly defined to include San Francisco Bay (bay) and the adjacent Sacramento–San Joaquin River Delta (delta). The U.S. Geological Survey (USGS) has operated a high-frequency (15-minute sampling interval) water-quality monitoring network in San Francisco Bay since the late 1980s (Buchanan and others, 2014). This network includes 19 stations at which sustained measurements have been made in the bay; currently, 8 stations are in operation (fig. 1). All eight stations are equipped with specific conductance (which can be related to salinity) and water-temperature sensors. Water quality in the bay constantly changes as ocean tides force seawater in and out of the bay, and river inflows—the most significant coming from the delta—vary on time scales ranging from those associated with storms to multiyear droughts. This monitoring network was designed to observe and characterize some of these changes in the bay across space and over time. The data demonstrate a high degree of variability in both specific conductance and temperature at time scales from tidal to annual and also reveal longer-term changes that are likely to influence overall environmental health in the bay.In water year (WY) 2015 (October 1, 2014, through September 30, 2015), as in the preceding water year (Downing-Kunz and others, 2015), the high-frequency measurements revealed record-high values of specific conductance and water temperature at several stations during a period of reduced freshwater inflow from the delta and other tributaries because of persistent, severe drought conditions in California. This report briefly summarizes observations for WY 2015 and compares them to previous years that had different levels of freshwater inflow.

  9. Rescatando el Salto de San Antón. Una historia reciente de construcción institucional

    OpenAIRE

    Raúl García Barrios; Valdemar Díaz Hinojosa; Lorena Cortés Vázquez; Guadalupe Torres Godínez; José Salazar Guzmán; Fernando Jaramillo Monroy; Rodrigo Morales Vázquez; Gabriela Miranda García; José Luis Alquiciras Solís; Carmen Tora Wiltshire Henríquez; David Pineda Fernández; Medardo Tapia Uribe; Gabriela Torres Gómez; César Añorve Millán; JuanManuel Zaragoza Contreras

    2007-01-01

    This paper develops a chronicle of the arise and evolution of a communitarian and intersectional coordination web that for over five years has been looking forward to halt and revert the environmental degradation in San Antón, a urban community located at the shore of the Apatlaco river, one of the main watercourses in Cuernavaca, Morelos, which bears high pollution levels.The paper presents the communitarian development of an autonomous process of management and regulation, related to the lo...

  10. Algunos aspectos de la economía del monasterio de Pedralbes a través del manual (1414-1419 y del "capbreu" (1414-1418 de Gabriel de Forest

    Directory of Open Access Journals (Sweden)

    Miranda Menacho, Vera-Cruz

    2003-06-01

    Full Text Available The objective of this article is to carry out a study about several economic aspects from the monastery of Pedralbes from 1414 to 1419 through out the Manual and Capbreu of the notary Gabriel de Forest. The items developed are the salaries of the workers linked to the monastery, the prices of the food bought by the nuns, and the slaves acquisition, through out the bills which are included in this mentioned notarial documentation.

    El objetivo de este artículo es realizar un estudio de algunos aspectos económicos del monasterio de Pedralbes a través del Manual y Capbreu del notario Gabriel de Forest desde 1414 hasta 1419. Los aspectos que se han desarrollado son los referentes a los salarios de los trabajadores vinculados al monasterio, los precios de los alimentos comprados por las monjas y la compra de esclavas, todo ello a través de los recibos que se encuentran en dicha documentación notarial.

  11. Être parasité par les fictions des autres. Rôle et (impertinence du personnage de Gabriel Rivages dans la trilogie 1984 d’Éric Plamondon

    Directory of Open Access Journals (Sweden)

    René Audet

    2015-01-01

    Full Text Available Romans fragmentaires autant que romans duels, les trois tomes de la trilogie 1984 d’Éric Plamondon associent chacun à une figure américaine (Weissmuller, Brautigan, Jobs le personnage de Gabriel Rivages, dont le destin est placé en écho à ces mythes. Singulier dans son histoire, Rivages reste toutefois un personnage faible, jouant un rôle de relais et de faire-valoir. Son actantialité réduite pourrait être perçue, à la lumière de la fragmentation romanesque et de l’architecture livresque de cet ensemble, comme le signal d’une individualité tiraillée entre la grandeur du réel mythifié et la faiblesse de la fiction ordinaire. As much fragmentary novels as they are dual novels, each of the three volumes of Eric Plamondon’s 1984 trilogy associates the character Gabriel Rivages with an American figure (Weissmuller, Brautigan, Jobs, placing the destiny of the character as an echo to the myths surrounding each figure. Though unique within his story, Rivages nevertheless remains a weak character, playing the role of relay or foil. His reduced actantiality may be perceived, in light of the novelistic fragmentation and the architecture of the trilogy, as the signal of an individuality caught between the grandeur of a mythologized reality and the feebleness of ordinary fiction.

  12. Synthesis of SAN-PB-SAN triblock copolymers via a ''living'' copolymerization with macro-photoiniferters

    NARCIS (Netherlands)

    Kroeze, E; de Boer, B.; ten Brinke, G.; Hadziioannou, G

    1996-01-01

    A technique is described for the synthesis of poly((styrene-co-acrylonitrile)-block-butadiene-block-(styrene-co-acrylonitrile)) (SAN-PB-SAN) triblock copolymers through polybutadiene-based photo-iniferters. Dihydroxy- and dicarboxy-terminated polybutadienes were transformed into the chloro-terminate

  13. 76 FR 1386 - Safety Zone; Centennial of Naval Aviation Kickoff, San Diego Bay, San Diego, CA

    Science.gov (United States)

    2011-01-10

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Centennial of Naval Aviation Kickoff, San... in support of the Centennial of Naval Aviation Kickoff. This temporary safety zone is necessary to... Purpose On February 12, 2010, the Centennial of Naval Aviation Kickoff will take place in San Diego Bay...

  14. 77 FR 59969 - Notice of Inventory Completion: San Francisco State University, Department of Anthropology, San...

    Science.gov (United States)

    2012-10-01

    ... Anthropology, San Francisco, CA; Correction AGENCY: National Park Service, Interior. ACTION: Notice; correction... Department of Anthropology). The human remains and associated funerary objects were removed from Marin County... San Francisco State University Department of Anthropology records. In the Federal Register (73...

  15. Una Visita al Viejo San Juan (A Visit to Old San Juan).

    Science.gov (United States)

    Cabello, Victor; And Others

    Written in Spanish, this black and white illustrated booklet provides a tour of Old San Juan, Puerto Rico's oldest and most historic city. Brief historical information is provided on the Perro de San Jeronimo, a statue of a barking dog found in front of the Castillo; Plaza de Colon, a small plaza dedicated to Christopher Columbus; the Catedral de…

  16. Una Visita al Viejo San Juan (A Visit to Old San Juan).

    Science.gov (United States)

    Cabello, Victor; And Others

    Written in Spanish, this black and white illustrated booklet provides a tour of Old San Juan, Puerto Rico's oldest and most historic city. Brief historical information is provided on the Perro de San Jeronimo, a statue of a barking dog found in front of the Castillo; Plaza de Colon, a small plaza dedicated to Christopher Columbus; the Catedral de…

  17. 33 CFR 165.754 - Safety Zone: San Juan Harbor, San Juan, PR.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Safety Zone: San Juan Harbor, San Juan, PR. 165.754 Section 165.754 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY REGULATED NAVIGATION AREAS AND LIMITED ACCESS AREAS Specific Regulated Navigation Areas and...

  18. 78 FR 19103 - Safety Zone; Spanish Navy School Ship San Sebastian El Cano Escort; Bahia de San Juan; San Juan, PR

    Science.gov (United States)

    2013-03-29

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Spanish Navy School Ship San Sebastian El... during the transit of the Spanish Navy School Ship San Sebastian El Cano, a public vessel, and during... board the Spanish Navy School Ship San Sebastian El Cano. The inbound escort is scheduled to take...

  19. Estimated effects on water quality of Lake Houston from interbasin transfer of water from the Trinity River, Texas

    Science.gov (United States)

    Liscum, Fred; East, Jeffery W.

    2000-01-01

    The City of Houston is considering the transfer of water from the Trinity River to Lake Houston (on the San Jacinto River) to alleviate concerns about adequate water supplies for future water demands. The U.S. Geological Survey, in cooperation with the City of Houston, conducted a study to estimate the effects on the water quality of Lake Houston from the transfer of Trinity River water. A water-quality model, CE–QUAL–W2, was used to simulate six water-quality properties and constituents for scenarios of interbasin transfer of Trinity River water. Three scenarios involved the transferred Trinity River water augmenting streamflow in the East Fork of Lake Houston, and three scenarios involved the transferred water replacing streamflow from the West Fork of the San Jacinto River.The estimated effects on Lake Houston were determined by comparing volume-weighted daily mean water temperature, phosphorus, ammonia nitrogen, nitrite plus nitrate nitrogen, algal biomass, and dissolved oxygen simulated for each of the transfer scenarios to simulations for a base dataset. The effects of the interbasin transfer on Lake Houston do not appear to be detrimental to water temperature, ammonia nitrogen, or dissolved oxygen. Phosphorus and nitrite plus nitrate nitrogen showed fairly large changes when Trinity River water was transferred to replace West Fork San Jacinto River streamflow. Algal biomass showed large decreases when Trinity River water was transferred to augment East Fork Lake Houston streamflow and large increases when Trinity River water was transferred to replace West Fork San Jacinto River streamflow. Regardless of the scenario simulated, the model indicated that light was the limiting factor for algal biomass growth.

  20. municipios Maracaibo y San Francisco

    Directory of Open Access Journals (Sweden)

    Rosa E. Ortiz

    2005-01-01

    Full Text Available El estudio de las Organizaciones No Gubernamentales estuvo dirigido a caracterizar la diversidad de grupos y asociaciones que bajo el termino genérico de ONG’s existen en los municipios Maracaibo y San Francisco, los más poblados y relevantes en la vida política, económica, social y cultural del estado Zulia-Venezuela. Se planteó una investigación exploratoria y descriptiva. El resultado permitió reconocer a Existe un crecimiento sostenido de las ONG en estos municipios: b los sectores con mayor concentración son el de salud; educación; deporte y recreación; arte y cultura. c Las instituciones que promueven más organizaciones son la iglesia y el Estado, lo que supone es este último caso una reducción de las funciones que le corresponden, además de la minimización de costos y conflictos laborales. d Ambivalencia en la orientación de su funcionamiento: Algunas ONG’s implementan prácticas próximas a la mercantilización de los servicios con lo cual legitiman estrategias del modelo económico neoliberal mientras otras contribuyen a fortalecer la democratización de los servicios públicos. Se concluye que el crecimiento y características de las ONGs en estos municipios estuvo vinculado en los noventa y comienzos de la década de 2000 por la aplicación de las políticas públicas neoliberales.

  1. San Pascual (2007) Año XLV, n. 344

    OpenAIRE

    2007-01-01

    Editorial. Coronación pontificia y declaración del patronato canónico para nuestra señora de Gracia. siguiendo los caminos de San Pascual, capítulo XIII Madrid II. Entrevista, Rosario García García presidenta de la asociación de hijas de María del Rosario.¡Seréis mis testigos (II)!. Donativos pro nueva bandera de San Pascual. San Pascual y la virgen de Gracia. Vida en el santuario. Los tesoros de San Pascual. Milagros de San Pascual VI, libra San Pascual a muchos del peligro del mar y de otro...

  2. Alter ego representations in San Agustin monolithic sculptures: possible plant hallucinogenic influences.

    Science.gov (United States)

    de Rios, Marlene Dobkin

    2009-12-01

    This article examines the evidence for plant hallucinogenic use (possibly Brugmansia, Brunfelsia chiricaspi, Desfontainia R., Anadenanthera peregrina, Banisteriopsis sps, Psychotropia viridis and Virola theidora) by the San Agustin culture, an extinct peoples who resided in the Magdelena River area of Colombia from the third century B.C. until the sixteenth century A.D. Based on thematic materials gathered from a cross-cultural survey of plant hallucinogens, the author examines themes in the monolithic sculptures of this culture in light of man-animal transformations and shamanic themes linked to plant hallucinogenic ingestion.

  3. San Diego Science Alliance Education Outreach Activities

    Science.gov (United States)

    Blue, Anne P.

    1996-11-01

    The General Atomics Science Education Outreach Activities as well as those of several other San Diego area institutions led to the formation in 1994 of the San Diego Science Alliance. The Science Alliance is a consortium of science-related industries, institutions of research and higher education, museums, medical health networks, and science competitions in support of K-12 science education. Some Alliance accomplishments include printing over 4000 resource catalogs for teachers, workshops presented by over 20 of their business members at the San Diego Science Education Conference, and hosting of 3 eight-week courses for teachers. The Alliance provides an important forum for interaction between schools and teachers and local industries and institutions. The Science Alliance maintains a World Wide Web Home Page at elvbf http://www.cerf.net/sd_science/. General Atomics' role in the San Diego Science Alliance will be presented.(Presented by Patricia S. Winter for the General Atomics Science Education Groups and San Diego Science Alliance.)

  4. A review of circulation and mixing studies of San Francisco Bay, California

    Science.gov (United States)

    Smith, Lawrence H.

    1987-01-01

    A description of the major characteristics and remaining unknowns of circulation and mixing in San Francisco Bay has been constructed from a review of published studies. From a broad perspective San Francisco Bay is an ocean-river mixing zone with a seaward flow equal to the sum of the river inflows less evaporation. Understanding of circulation and mixing within the bay requires quantification of freshwater inflows and ocean-bay exchanges, characterization of source-water variations, and separation of the within-bay components of circulation and mixing processes. Description of net circulation and mixing over a few days to a few months illustrates best the interactions of major components. Quantification of tidal circulation and mixing is also necessary because net circulation and mixing contain a large tide-induced component, and because tidal variations are dominant in measurements of stage, currents, and salinity. The discharge of the Sacramento-San Joaquin Delta into Suisun Bay is approximately 90 percent of the freshwater inflow to San Francisco Bay. Annual delta discharge is characterized by a winter season of high runoff and a summer season of low runoff. For the period 1956 to 1985 the mean of monthly discharges exceeded 1,000 cubic meters per second (35,000 cubic feet per second) for the months of December through April, whereas for July through October, it was less than 400 cubic meters per second (14,000 cubic feet per second). The months of November, May, and June commonly were transition months between these seasons. Large year-to-year deviations from this annual pattern have occurred frequently. Much less is known about the ocean-bay exchange process. Net exchanges depend on net seaward flow in the bay, tidal amplitude, and longshore coastal currents, but exchanges have not yet been measured successfully. Source-water variations are ignored by limiting discussion of mixing to salinity. The bay is composed of a northern reach, which is strongly

  5. A correspondência de Simón Bolívar e sua presença na literatura: uma análise de O General em seu labirinto de Gabriel García Márquez Simon Bolivar's correspondence and its presence in literature: an analysis of The General in His Labyrinth by Gabriel Garcia Márquez

    Directory of Open Access Journals (Sweden)

    Fabiana de Souza Fredrigo

    2009-01-01

    Full Text Available Simón Bolívar, uma das lideranças mais importantes das independências na América do Sul de colonização espanhola, deixou um epistolário com 2815 cartas. Ao partir do propósito em expor o projeto narrativo epistolar, um dos temas de destaque, no decorrer da leitura, foi o da renúncia do general. As diversas solicitações de renúncia ao cargo administrativo e as justificativas que as acompanhavam levaram-me à análise do que denominei por memória da indispensabilidade. Depois da investigação desse discurso no epistolário, as relações com a literatura e a biografia foram fundamentais para ampliar a compreensão acerca da composição dessa memória da indispensabilidade nas epístolas. Para este artigo, pretende-se cotejar as cartas de Simón Bolívar e o romance de Gabriel García Márquez, O General em seu labirinto. A hipótese é a de que o texto literário, além de usar o epistolário bolivariano para construir seu personagem e a cena romanesca, acrescenta possibilidades explicativas sobre o projeto de memória conduzido pela escrita de cartas, na mesma medida em que reforça o culto ao general Libertador.Simon Bolivar, one of the most important South American leaders of independence within the areas of Spanish colonialism in South America, left behind an epistolary of 2815 letters. Our proposal starts off with the display of the narrative epistolary project and soon encounters one of its highlights in the course of the reading, which is the general's own resignation. The several requests of resignation from his administrative position, and the justifications that followed them had taken me to the analysis of what I called the memory of the indispensability. After investigating this speech in the epistolary, the relationship between literature and the biography had been fundamental in improving our understanding of the substance of this memory of the indispensability in the epistles. This article intends to compare Simon

  6. Riders on the storm: selective tidal movements facilitate the spawning migration of threatened delta smelt in the San Francisco Estuary

    Science.gov (United States)

    Bennett, W.A.; Burau, Jon R.

    2015-01-01

    Migration strategies in estuarine fishes typically include behavioral adaptations for reducing energetic costs and mortality during travel to optimize reproductive success. The influence of tidal currents and water turbidity on individual movement behavior were investigated during the spawning migration of the threatened delta smelt, Hypomesus transpacificus, in the northern San Francisco Estuary, California, USA. Water current velocities and turbidity levels were measured concurrently with delta smelt occurrence at sites in the lower Sacramento River and San Joaquin River as turbidity increased due to first-flush winter rainstorms in January and December 2010. The presence/absence of fish at the shoal-channel interface and near the shoreline was quantified hourly over complete tidal cycles. Delta smelt were caught consistently at the shoal-channel interface during flood tides and near the shoreline during ebb tides in the turbid Sacramento River, but were rare in the clearer San Joaquin River. The apparent selective tidal movements by delta smelt would facilitate either maintaining position or moving upriver on flood tides, and minimizing advection down-estuary on ebb tides. These movements also may reflect responses to lateral gradients in water turbidity created by temporal lags in tidal velocities between the near-shore and mid-channel habitats. This migration strategy can minimize the energy spent swimming against strong river and tidal currents, as well as predation risks by remaining in turbid water. Selection pressure on individuals to remain in turbid water may underlie population-level observations suggesting that turbidity is a key habitat feature and cue initiating the delta smelt spawning migration.

  7. Sediment Deposition, Erosion, and Bathymetric Change in Central San Francisco Bay: 1855-1979

    Science.gov (United States)

    Fregoso, Theresa A.; Foxgrover, Amy C.; Jaffe, Bruce E.

    2008-01-01

    Central San Francisco Bay is the hub of a dynamic estuarine system connecting the San Joaquin and Sacramento River Deltas, Suisun Bay, and San Pablo Bay to the Pacific Ocean and South San Francisco Bay. To understand the role that Central San Francisco Bay plays in sediment transport throughout the system, it is necessary to first determine historical changes in patterns of sediment deposition and erosion from both natural and anthropogenic forces. The first extensive hydrographic survey of Central San Francisco Bay was conducted in 1853 by the National Ocean Service (NOS) (formerly the United States Coast and Geodetic Survey (USCGS)). From 1894 to 1979, four additional surveys, composed of a total of approximately 700,000 bathymetric soundings, were collected within Central San Francisco Bay. Converting these soundings into accurate bathymetric models involved many steps. The soundings were either hand digitized directly from the original USCGS and NOS hydrographic sheets (H-sheets) or obtained digitally from the National Geophysical Data Center's (NGDC) Geophysical Data System (GEODAS) (National Geophysical Data Center, 1996). Soundings were supplemented with contours that were either taken directly from the H-sheets or added in by hand. Shorelines and marsh areas were obtained from topographic sheets. The digitized soundings, depth contours, shorelines, and marsh areas were entered into a geographic information system (GIS) and georeferenced to a common horizontal datum. Using surface modeling software, bathymetric grids with a horizontal resolution of 25 m were developed for each of the five hydrographic surveys. Before analyses of sediment deposition and erosion were conducted, interpolation bias was removed and all of the grids were converted to a common vertical datum. These bathymetric grids were then used to develop bathymetric change maps for subsequent survey periods and to determine long-term changes in deposition and erosion by calculating volumes and

  8. Cacao use and the San Lorenzo Olmec.

    Science.gov (United States)

    Powis, Terry G; Cyphers, Ann; Gaikwad, Nilesh W; Grivetti, Louis; Cheong, Kong

    2011-05-24

    Mesoamerican peoples had a long history of cacao use--spanning more than 34 centuries--as confirmed by previous identification of cacao residues on archaeological pottery from Paso de la Amada on the Pacific Coast and the Olmec site of El Manatí on the Gulf Coast. Until now, comparable evidence from San Lorenzo, the premier Olmec capital, was lacking. The present study of theobromine residues confirms the continuous presence and use of cacao products at San Lorenzo between 1800 and 1000 BCE, and documents assorted vessels forms used in its preparation and consumption. One elite context reveals cacao use as part of a mortuary ritual for sacrificial victims, an event that occurred during the height of San Lorenzo's power.

  9. Imitation, opposition and innovation of social forms: Finitude and infinitude in Gabriel Tarde’s Social Laws Imitación, oposición e innovación de las formas sociales: Finitud e infinitud en Las Leyes Sociales de Gabriel Tarde

    Directory of Open Access Journals (Sweden)

    Tomás Sánchez-Criado

    2011-03-01

    Full Text Available

    In this text I present a selection of fragments of the book ‘The social laws' by Gabriel Tarde (1843-1904, published originally in 1898 and translated into Spanish at the beginning of the 20th century. After a long time condemned to oblivion Gabriel Tarde has been reinvigorated in recent decades for the pantheon of social sciences, even reaching the point of becoming a very relevant author for Actor-Network Theory (no less than Bruno Latour has turned him into ‘ANT's ancestor'. However, I believe that the recuperation of Tarde's works could lead us to far more interesting discussions than a new mythic of ancestral figures. In this introduction I press for a more direct approach to Tarde's writings, something which might allow us to go beyond any presentist use of a historical figure to prop up a ready-made theory for mass-consumption. For this reason, I would like to propose to focus on Tarde's very own descriptions of the ‘laws' of social life, made out of -potentially infinitesimal- social forms which repeat and differentiate -something he refers as the processes of imitation, opposition and innovation-. In that vein, I would like to mention some contemporary critical appraisals of those formulations in terms of ‘laws' or Tarde's treatments of the scale of the social -where special attention is put on

  10. MACROALGAS E QUALIDADE DA ÁGUA NA BACIA DO ALTO RIO NEGRO - MUNICÍPIO DE SÃO GABRIEL DA CACHOEIRA (AM.

    Directory of Open Access Journals (Sweden)

    Domitila Pascoaloto

    2011-01-01

    Full Text Available Foram investigadas as comunidades de macroalgas do rio Negro, no município de São Gabriel da Cachoeira. Em setembro/2007 foram visitados cinco sítios amostrais, próximos à sede da cidade; em Março/2008 foram investigados oito sítios amostrais, entre a comunidade Amium (hemisfério norte e a sede da cidade (hemisfério sul; em agosto de 2008 foram investigadas as comunidades de macroalgas e a qualidade da água do rio Negro e onze afluentes, entre os rios Içana (hemisfério norte e Marie, no hemisfério sul; em abril/2009 foram coletadas macroalgas e água no rio Negro e em igarapés de água com tonalidade vermelha, na sede da cidade; em maio/2009 foram feitas coletas de água no rio Negro entre a comunidade de Cucuí, onde o rio Negro entra no Brasil e a sede do município. As águas dos locais apresentaram características típicas de rio de “água preta”: pH ácido ( 6,0 mgO2/L. As entidades ecológicas de macroalgas observadas pertenceram aos gêneros Batrachospermum Roth (Batrachospermaceae, Rhodophyta; Microspora Thuret (Microsporaceae, Chorophyta, Oedogonium Link ex Hirn (Oedogoniaceae, Chorophyta; Oscillatoria Vaucher ex Gomont (Oscillatoriaceae, Cyanophyta; Phormidium Kützing ex Gomont (Phormidiaceae, Cyanophyta; Spirogyra Link (Zygnemaceae, Chlorophyta; Tabellaria Ehrenberge ex Kützing (Fragilariophyceae, Bacillariophyta. Na sede da cidade, a macroalga mais freqüente (50% dos registros foi Spirogyra spp.. Foram encontradas macroalgas com hábitos eplilíticos e efíticos Gametófitos de Batrachospermum spp. foram observados em três sítios amostrais (em troncos ou rochas em setembro/2007, período de águas mais baixas, porém não foram encontradas macroalgas nesses locais em março/2008, quando o rio estava mais cheio. No entanto, em agosto de 2008, quando o rio também estava em período de águas altas, foram observados, em fragmentos rochosos na orla da sede do município, filamentos férteis de Batrachospermum sp

  11. Salt Ponds, South San Francisco Bay

    Science.gov (United States)

    2002-01-01

    higher resolution 1000 pixel-wide image The red and green colors of the salt ponds in South San Francisco Bay are brilliant visual markers for astronauts. The STS-111 crew photographed the bay south of the San Mateo bridge in June, 2002. This photograph is timely because a large number of the salt ponds (more than 16,500 acres) that are owned by Cargill, Inc. will be sold in September for wetlands restoration-a restoration project second in size only to the Florida Everglades project. Rough boundaries of the areas to be restored are outlined on the image. Over the past century, more than 80% of San Francisco Bay's wetlands have been filled and developed or diked off for salt mining. San Francisco Bay has supported salt mining since 1854. Cargill has operated most of the bay's commercial salt ponds since 1978, and had already sold thousands of acres to the State of California and the Don Edwards National Wildlife Refuge. This new transaction will increase San Francisco Bay's existing tidal wetlands by 50%. The new wetlands, to be managed by the California Department of Fish and Game and the U.S. Fish and Wildlife Service, will join the Don Edwards National Wildlife Refuge, and provide valuable habitat for birds, fish and other wildlife. The wetlands will contribute to better water quality and flood control in the bay, and open up more coastline for public enjoyment. Additional information: Cargill Salt Ponds (PDF) Turning Salt Into Environmental Gold Salt Ponds on Way to Becoming Wetlands Historic Agreement Reached to Purchase San Francisco Bay Salt Ponds Astronaut photograph STS111-376-3 was provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC Gateway to Astronaut Photography of Earth

  12. A Case for Historic Joint Rupture of the San Andreas and San Jacinto Faults

    Science.gov (United States)

    Lozos, J.

    2015-12-01

    The ~M7.5 southern California earthquake of 8 December 1812 ruptured the San Andreas Fault from Cajon Pass to at least as far north as Pallet Creek (Biasi et al., 2002). The 1812 rupture has also been identified in trenches at Burro Flats to the south (Yule and Howland, 2001). However, the lack of a record of 1812 at Plunge Creek, between Cajon Pass and Burro Flats (McGill et al., 2002), complicates the interpretation of this event as a straightforward San Andreas rupture. Paleoseismic records of a large early 19th century rupture on the northern San Jacinto Fault (Onderdonk et al., 2013; Kendrick and Fumal, 2005) allow for alternate interpretations of the 1812 earthquake. I use dynamic rupture modeling on the San Andreas-San Jacinto junction to determine which rupture behaviors produce slip patterns consistent with observations of the 1812 event. My models implement realistic fault geometry, a realistic velocity structure, and stress orientations based on seismicity literature. Under these simple assumptions, joint rupture of the two faults is the most common behavior. My modeling rules out a San Andreas-only rupture that is consistent with the data from the 1812 earthquake, and also shows that single fault events are unable to match the average slip per event for either fault. The choice of nucleation point affects the details of rupture directivity and slip distribution, but not the first order result that multi-fault rupture is the preferred behavior. While it cannot be definitively said that joint San Andreas-San Jacinto rupture occurred in 1812, these results are consistent with paleoseismic and historic data. This has implications for the possibility of future multi-fault rupture within the San Andreas system, as well as for interpretation of other paleoseismic events in regions of complex fault interactions.

  13. A Glorious Century of Art Education: San Francisco's Art Institute

    Science.gov (United States)

    Dobbs, Stephen Mark

    1976-01-01

    Author described the life and times of the San Francisco Art Institute and reviewed the forces that made San Francisco a city of more than ordinary awareness of the arts in its civic and civil existence. (Editor/RK)

  14. Species Observations (poly) - San Diego County [ds648

    Data.gov (United States)

    California Department of Resources — Created in 2009, the SanBIOS database serves as a single repository of species observations collected by various departments within the County of San Diego's Land...

  15. Mammal Track Counts - San Diego County, 2010 [ds709

    Data.gov (United States)

    California Department of Resources — The San Diego Tracking Team (SDTT) is a non-profit organization dedicated to promoting the preservation of wildlife habitat in San Diego County through citizen-based...

  16. Coastal Cactus Wren, San Diego Co. - 2009 [ds702

    Data.gov (United States)

    California Department of Resources — The San Diego Multiple Species Conservation program (MSCP) was developed for the conservation of plants and animals in the southeast portion of San Diego County....

  17. Coastal Cactus Wren, San Diego Co. - 2011 [ds708

    Data.gov (United States)

    California Department of Resources — The San Diego Multiple Species Conservation program (MSCP) was developed for the conservation of plants and animals in the southeast portion of San Diego County....

  18. Mammal Track Counts - San Diego County [ds442

    Data.gov (United States)

    California Department of Resources — The San Diego Tracking Team (SDTT) is a non-profit organization dedicated to promoting the preservation of wildlife habitat in San Diego County through citizen-based...

  19. San Marino-China Friendship Association 20 Years Old

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    <正>San Marino, with a population of less than 30,000, is one of the smallest countries in Europe. In such a small country the San Marino-China Friendship Association (SMCFA) was set up and has exerted

  20. Las fortalezas de San Lázaro

    Directory of Open Access Journals (Sweden)

    Enrique Naranjo Martínez

    1961-11-01

    Full Text Available Generalmente en Cartagena, al hablar de las fortalezas del cerro de San Lázaro, las llaman en conjunto el Castillo de San Felipe de Barajas, pero en esto nos parece que hay un error. El castillo propiamente dicho se construyó en 1657, según la inscripción que en placa de mármol, ostentaba El Caballero, desde donde la sonora voz de la campana daba los alertas a la plaza fuerte en los días de la colonia.

  1. Cacao use and the San Lorenzo Olmec

    OpenAIRE

    Powis, Terry G.; Cyphers, Ann; Gaikwad, Nilesh W.; Grivetti, Louis; Cheong, Kong

    2011-01-01

    Mesoamerican peoples had a long history of cacao use—spanning more than 34 centuries—as confirmed by previous identification of cacao residues on archaeological pottery from Paso de la Amada on the Pacific Coast and the Olmec site of El Manatí on the Gulf Coast. Until now, comparable evidence from San Lorenzo, the premier Olmec capital, was lacking. The present study of theobromine residues confirms the continuous presence and use of cacao products at San Lorenzo between 1800 and 1000 BCE, an...

  2. Characterization of benthic communities and physical habitat in the Stanislaus, Tuolumne, and Merced Rivers, California.

    Science.gov (United States)

    Hall, Lenwood W; Killen, William D; Anderson, Ronald D

    2006-04-01

    The primary goal of this study was to characterize physical habitat and benthic communities (macroinvertebrates) in the Stanislaus, Tuolumne and Merced Rivers in California's San Joaquin Valley in 2003. These rivers have been listed as impaired water bodies (303 (d) list) by the State of California due to the presence of organophosphate (OP) insecticides chlorpyrifos and diazinon, Group A pesticides (i.e., organochlorine pesticides), mercury, or unknown toxicity. Based on 10 instream and riparian physical habitat metrics, total physical habitat scores in the Stanislaus River ranged from 124 to 188 (maximum possible total score is 200). The highest total habitat score was reported at the upstream site. Tuolumne River physical habitat scores ranged from 86 to 167. Various Tuolumne River physical habitat metrics, including total habitat score, increased from downstream to upstream in this river. Merced River physical habitat scores ranged from 121 to 170 with a significant increase in various physical habitat metrics, including total habitat score, reported from downstream to upstream. Channel flow (an instream metric) and bank stability (a riparian metric) were the most important physical habitat metrics influencing the various benthic metrics for all three rivers. Abundance measures of benthic macroinvertebrates (5,100 to 5,400 individuals) were similar among the three rivers in the San Joaquin watershed. Benthic communities in all three rivers were generally dominated by: (1) Baetidae species (mayflies) which are a component of EPT taxa generally considered sensitive to environmental degradation; (2) Chironomidae (midges) which can be either tolerant or sensitive to environmental stressors depending on the species; (3) Ephemerellidae (mayflies) which are considered sensitive to pollution stress; and (4) Naididae (aquatic worms) which are generally considered tolerant to environmental stressors. The presence of 117 taxa in the Stanislaus River, 114 taxa in the

  3. Transient electromagnetic study of basin fill sediments in the Upper San Pedro Basin, Mexico

    Science.gov (United States)

    Bultman, M.W.; Gray, F.

    2011-01-01

    The Upper San Pedro River Basin in Mexico and the United States is an important riparian corridor that is coming under increasing pressure from growing populations and the associated increase in groundwater withdrawal. Several studies have produced three-dimensional maps of the basin fill sediments in the US portion of the basin but little work has been done in the Mexican portion of the basin. Here, the results of a ground-based transient electromagnetic (TEM) survey in the Upper San Pedro Basin, Mexico are presented. These basin fill sediments are characterized by a 10-40 m deep unsaturated surficial zone which is composed primarily of sands and gravels. In the central portion of the basin this unsaturated zone is usually underlain by a shallow clay layer 20-50 m thick. Beneath this may be more clay, as is usually the case near the San Pedro River, or interbedded sand, silt, and clay to a depth of 200-250 m. As you move away from the river, the upper clay layer disappears and the amount of sand in the sediments increases. At 1-2 km away from the river, sands can occupy up to 50% of the upper 200-250 m of the sediment fill. Below this, clays are always present except where bedrock highs are observed. This lower clay layer begins at a depth of about 200 m in the central portion of the basin (250 m or more at distances greater than 1-2 km from the river) and extends to the bottom of most profiles to depths of 400 m. While the depth of the top of this lower clay layer is probably accurate, its thickness observed in the models may be overestimated due to the relatively low magnetic moment of the TEM system used in this study. The inversion routine used for interpretation is based on a one-dimensional geologic model. This is a layer based model that is isotropic in both the x and y directions. Several survey soundings did not meet this requirement which invalidates the inversion process and the resulting interpretation at these locations. The results from these

  4. 78 FR 59230 - Special Local Regulations; Annual Marine Events on the Colorado River, Between Davis Dam...

    Science.gov (United States)

    2013-09-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 100 Special Local Regulations; Annual Marine Events on the Colorado River, Between Davis Dam (Bullhead City, Arizona) and Headgate Dam (Parker, Arizona) Within the San Diego...

  5. Southern San Francisco Bay Colonial Nesting Bird Census 1995-1996: Don Edwards San Francisco Bay National Wildlife Refuge Lands

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the 1995-1996 field season of the San Francisco Bay Bird Observatory (SFBBO) Colonial Waterbird Monitoring Study on the Don Edwards San...

  6. 33 CFR 110.210 - San Diego Harbor, CA.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false San Diego Harbor, CA. 110.210... ANCHORAGE REGULATIONS Anchorage Grounds § 110.210 San Diego Harbor, CA. (a) The anchorage grounds. (1... Commander, Naval Base, San Diego, CA. The administration of these anchorages is exercised by the...

  7. 78 FR 48646 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2013-08-09

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... at the Supervisor's Office of the Pike & San Isabel National Forests, Cimarron and Comanche...

  8. 75 FR 51749 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2010-08-23

    ... No: 2010-20802] DEPARTMENT OF AGRICULTURE Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource... at the Supervisor's Office of the Pike & San Isabel National Forests, Cimarron and Comanche...

  9. 76 FR 30903 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2011-05-27

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... of the Pike & San Isabel National Forests, Cimarron and Comanche National Grasslands (PSICC) at...

  10. 75 FR 65609 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2010-10-26

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... Supervior's Office of the Pike & San Isabel National Forests, Cimarron and Comanche National...

  11. 76 FR 2331 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2011-01-13

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... of the Pike & San Isabel National Forests, Cimarron and Comanche National Grasslands (PSICC) at...

  12. 77 FR 50459 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2012-08-21

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... will be held at the Supervisor's Office of the Pike & San Isabel National Forests, Cimarron...

  13. 76 FR 27304 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2011-05-11

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... Pike & San Isabel National Forests, Cimarron and Comanche National Grasslands (PSICC) at 2840...

  14. 75 FR 78675 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2010-12-16

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... of the Pike & San Isabel National Forests, Cimarron and Comanche National Grasslands (PSICC) at...

  15. 76 FR 9540 - Pike & San Isabel Resource Advisory Committee

    Science.gov (United States)

    2011-02-18

    ... Forest Service Pike & San Isabel Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Pike & San Isabel Resource Advisory Committee will meet in Pueblo, Colorado... of the Pike & San Isabel National Forests, Cimarron and Comanche National Grasslands (PSICC) at...

  16. 76 FR 12692 - San Juan National Forest Resource Advisory Committee

    Science.gov (United States)

    2011-03-08

    ... Forest Service San Juan National Forest Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The San Juan National Forest Resource Advisory Council (RAC) will meet in... comments should be sent to Attn: San Juan National Forest RAC, 15 Burnett Court, Durango, CO 81301...

  17. 76 FR 40876 - San Juan National Forest Resource Advisory Committee

    Science.gov (United States)

    2011-07-12

    ... Forest Service San Juan National Forest Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The San Juan National Forest Resource Advisory Council (RAC) will meet in... Sonoran Meeting Rooms. Written comments should be sent to Attn: San Juan National Forest RAC, 15 Burnett...

  18. 75 FR 48306 - San Juan National Forest Resource Advisory Committee

    Science.gov (United States)

    2010-08-10

    ... Forest Service San Juan National Forest Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The San Juan National Forest Resource Advisory Council (RAC) will meet in... comments should be sent to Attn: San Juan National Forest RAC, 15 Burnett Court, Durango, CO 81301...

  19. 75 FR 71179 - Environmental Impact Statement: San Diego County, CA

    Science.gov (United States)

    2010-11-22

    ... Federal Highway Administration Environmental Impact Statement: San Diego County, CA AGENCY: Federal... Environmental Impact Statement (EIS) will be prepared ] for a proposed highway project in San Diego County... Community Center, 2258 Island Avenue, San Diego, California 92102. FOR FURTHER INFORMATION CONTACT: Kevin...

  20. San Francisco Bay Long Term Management Strategy for Dredging

    Science.gov (United States)

    The San Francisco Bay Long Term Management Strategy (LTMS) is a cooperative effort to develop a new approach to dredging and dredged material disposal in the San Francisco Bay area. The LTMS serves as the Regional Dredging Team for the San Francisco area.