WorldWideScience

Sample records for survey area depth

  1. The Hubble-Depth Survey

    Directory of Open Access Journals (Sweden)

    Changbom Park

    2007-01-01

    Full Text Available Mediante una simulaci n de N cuerpos de un modelo ACDM hemos desarrollado una b squeda de galaxias ficticias hasta la profundidad del Hubble. Para encontrar las galaxias en la distribuci on de part culas, identificamos los halos estables y autoligados mediante un m todo de b squeda de halos en el espacio real y en el cono de luz. Suponemos que cada halo contiene solamente una galaxia con un brillo monot nicamente proporcional a la masa del halo, para as ajustar la funci n de masa con la funci n de luminosidad gal actica obtenida en el Sloan Digital Sky Survey (SDSS. Despu s de aplicar la correcciones K, y de evoluci n a las luminosidades observadas de las galaxias ficticias, hicimos estudios del corrimiento al rojo bajo varias restricciones observacionales. En particular, proponemos un nuevo estudio de corrimientos al rojo, llamado el Hubble Depth Survey, el cual est limitado hasta la magnitud r = 22 y alcanza la distancia de Hubble dH = 3000 h -1 Mpe

  2. Russian Federation Snow Depth and Ice Crust Surveys

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Russian Federation Snow Depth and Ice Crust Surveys, dataset DSI-9808, contains routine snow surveys that run throughout the cold season every 10 days (every five...

  3. Depth to ground water contours of hydrographic area 153, Diamond Valley, Nevada

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set consists of depth to ground water contours for hydrographic-area (HA) 153, Diamond Valley, Nevada. These data represent static ground-water levels...

  4. Malheur NWR: Initial Survey Instructions for Water Table Depth Survey

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Water table wells assist in filling a critical information gap related to fluctuating water table depth and its influence on habitat expression within wet meadow...

  5. Modeling the Hook Depth Distribution of Pelagic Longlining in the Equatorial Area of Indian Ocean

    Institute of Scientific and Technical Information of China (English)

    SONG Liming; LI Jie; GAO Panfeng; ZHOU Ji; XU Liuxiong

    2012-01-01

    A survey was conducted in the equatorial area of Indian Ocean for a better understanding of the dynamics of hook depth distribution of pelagic longline fishery.We determined the relationship between hook depth and vertical shear of current coefficiency,wind speed,hook position code,sine of wind angle,sine of angle of attack and weight of messenger weight.We identified the hook depth models by the analysis of covariance with a general linear model.The results showed that the wind effect on the hook depth can be ignored from October to November in the survey area; the surface current effect on the hook depth can be ignored; the equatorial undercurrent is the key factor for the hook depth in Indian Ocean; and there is a negative correlation between the hook depth and vertical shear of current and angle of attack.It was also found that the deeper the hook was set,the higher hook depth shoaling was.The proposed model improves the accuracy of the prediction of hook depth,which can be used to estimate the vertical distribution of pelagic fish in water column.

  6. Estimation of volume-area-depth relationship for shallow wetland

    Energy Technology Data Exchange (ETDEWEB)

    Kim Jun-Kwon; Jeong, Sang-Man [Kongju National University, Kongju(Korea); Kim, Hung-Soo [Sunmoon University, Asan(Korea)

    2002-04-30

    The wetland has very important functions in hydrologic and ecological aspects and the research of wetland functions requires the basic hydrological properties such as water quantity. However, we do not have research work on the hydrological for a wetland study in Korea. Therefore, this study is to estimate the relations between the volume(V), the area(A), and the depth(h) of water in the wetland which might be the basis for the wetland research in Korea. To estimate the relations, we derive the basic equations, obtain the surveyed data and do modelling, and estimate the relations of A-h and V-h using the Surfer program. The estimated and observed volumes for 5-wetland are compared and the errors are in the range of 2% to 11% for 4-wetland and 34% for the rest. The wetlands in small errors showed the similar ones with the profile of the wetted perimeter which is assumed for the derivation of the equation but the wetland of large error has much different profile with the assumed one. We re-estimate the volumes for 3-wetland(W3, W4, W5) which showed the large errors due to the bended profiles of the wetland slope. Say, after the slopes was divided into two parts of upper and lower ones, the volumes were estimated. From our re-estimation, we obtained very good results ranged from 1% to 8% in their errors. We conjecture that the procedure suggested in this study might be useful as a reference for the future research on the relations of V-A-h in Korea. (author). 9 refs., 4 tabs., 18 figs.

  7. Airborne Surveys of Snow Depth over Arctic Sea Ice

    Science.gov (United States)

    Kwok, R.; Panzer, B.; Leuschen, C.; Pang, S.; Markus, T.; Holt, B.; Gogineni, S.

    2011-01-01

    During the spring of 2009, an ultrawideband microwave radar was deployed as part of Operation IceBridge to provide the first cross-basin surveys of snow thickness over Arctic sea ice. In this paper, we analyze data from three approx 2000 km transects to examine detection issues, the limitations of the current instrument, and the regional variability of the retrieved snow depth. Snow depth is the vertical distance between the air \\snow and snow-ice interfaces detected in the radar echograms. Under ideal conditions, the per echogram uncertainty in snow depth retrieval is approx 4 - 5 cm. The finite range resolution of the radar (approx 5 cm) and the relative amplitude of backscatter from the two interfaces limit the direct retrieval of snow depths much below approx 8 cm. Well-defined interfaces are observed over only relatively smooth surfaces within the radar footprint of approx 6.5 m. Sampling is thus restricted to undeformed, level ice. In early April, mean snow depths are 28.5 +/- 16.6 cm and 41.0 +/- 22.2 cm over first-year and multiyear sea ice (MYI), respectively. Regionally, snow thickness is thinner and quite uniform over the large expanse of seasonal ice in the Beaufort Sea, and gets progressively thicker toward the MYI cover north of Ellesmere Island, Greenland, and the Fram Strait. Snow depth over MYI is comparable to that reported in the climatology by Warren et al. Ongoing improvements to the radar system and the utility of these snow depth measurements are discussed.

  8. Area- and Depth-Weighted Averages of Selected SSURGO Variables for the Conterminous United States and District of Columbia

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This digital data release consists of seven national data files of area- and depth-weighted averages of select soil attributes for every available county in the...

  9. Large-Scale Surveys of Snow Depth on Arctic Sea Ice from Operation IceBridge

    Science.gov (United States)

    Kurtz, Nathan T.; Farrell, Sinead L.

    2011-01-01

    We show the first results of a large ]scale survey of snow depth on Arctic sea ice from NASA fs Operation IceBridge snow radar system for the 2009 season and compare the data to climatological snow depth values established over the 1954.1991 time period. For multiyear ice, the mean radar derived snow depth is 33.1 cm and the corresponding mean climatological snow depth is 33.4 cm. The small mean difference suggests consistency between contemporary estimates of snow depth with the historical climatology for the multiyear ice region of the Arctic. A 16.5 cm mean difference (climatology minus radar) is observed for first year ice areas suggesting that the increasingly seasonal sea ice cover of the Arctic Ocean has led to an overall loss of snow as the region has transitioned away from a dominantly multiyear ice cover.

  10. New Quasar Surveys With WIRO: Planning and Depth of Observations

    Science.gov (United States)

    Bassett, Neil; Deam, Sophie; Dixon, Don; Griffith, Emily; Harvey, William; Lee, Daniel; Lyke, Bradley; Haze Nunez, Evan; Parziale, Ryan; Witherspoon, Catherine; Myers, Adam D.; Findlay, Joseph; Kobulnicky, Henry A.; Dale, Daniel A.

    2017-01-01

    The Wyoming Infrared Observatory (WIRO) 2.3-meter telescope is used to observe a section of sky behind the outer regions of the galaxy M33 with the goal of identifying previously undiscovered quasar candidates. We choose the regions based on visibility during the time of year the observations are taken as well as regions in which few quasars have been detected by previous surveys. DS9 and Python are used to determine the coordinates of our desired field centers for photometric observations in the u, g, r, and i Sloan filters. Exposure times are chosen such that the depth in each filter is greater than an apparent magnitude of 21. This depth allows us to identify quasar candidates which are fainter than other quasar surveys in the same vicinity. Future spectroscopic observations will be able to confirm if the candidates are indeed quasars and spectra of the confirmed quasars can be used to study the extended gaseous region of M33. This work is supported by the National Science Foundation under REU grant AST 1560461.

  11. The impact from survey depth and resolution on the morphological classification of galaxies

    Science.gov (United States)

    Pović, M.; Márquez, I.; Masegosa, J.; Perea, J.; Olmo, A. del; Simpson, C.; Aguerri, J. A. L.; Ascaso, B.; Jiménez-Teja, Y.; López-Sanjuan, C.; Molino, A.; Pérez-García, A. M.; Viironen, K.; Husillos, C.; Cristóbal-Hornillos, D.; Caldwell, C.; Benítez, N.; Alfaro, E.; Aparicio-Villegas, T.; Broadhurst, T.; Cabrera-Caño, J.; Castander, F. J.; Cepa, J.; Cerviño, M.; Fernández-Soto, A.; Delgado, R. M. González; Infante, L.; Martínez, V. J.; Moles, M.; Prada, F.; Quintana, J. M.

    2015-10-01

    We consistently analyse for the first time the impact of survey depth and spatial resolution on the most used morphological parameters for classifying galaxies through non-parametric methods: Abraham and Conselice-Bershady concentration indices, Gini, M20 moment of light, asymmetry, and smoothness. Three different non-local data sets are used, Advanced Large Homogeneous Area Medium Band Redshift Astronomical (ALHAMBRA) and Subaru/XMM-Newton Deep Survey (SXDS, examples of deep ground-based surveys), and Cosmos Evolution Survey (COSMOS, deep space-based survey). We used a sample of 3000 local, visually classified galaxies, measuring their morphological parameters at their real redshifts (z ˜ 0). Then we simulated them to match the redshift and magnitude distributions of galaxies in the non-local surveys. The comparisons of the two sets allow us to put constraints on the use of each parameter for morphological classification and evaluate the effectiveness of the commonly used morphological diagnostic diagrams. All analysed parameters suffer from biases related to spatial resolution and depth, the impact of the former being much stronger. When including asymmetry and smoothness in classification diagrams, the noise effects must be taken into account carefully, especially for ground-based surveys. M20 is significantly affected, changing both the shape and range of its distribution at all brightness levels. We suggest that diagnostic diagrams based on 2-3 parameters should be avoided when classifying galaxies in ground-based surveys, independently of their brightness; for COSMOS they should be avoided for galaxies fainter than F814 = 23.0. These results can be applied directly to surveys similar to ALHAMBRA, SXDS and COSMOS, and also can serve as an upper/lower limit for shallower/deeper ones.

  12. Depth

    NARCIS (Netherlands)

    Koenderink, J.J.; Van Doorn, A.J.; Wagemans, J.

    2011-01-01

    Depth is the feeling of remoteness, or separateness, that accompanies awareness in human modalities like vision and audition. In specific cases depths can be graded on an ordinal scale, or even measured quantitatively on an interval scale. In the case of pictorial vision this is complicated by the f

  13. Depth

    NARCIS (Netherlands)

    Koenderink, J.J.; Van Doorn, A.J.; Wagemans, J.

    2011-01-01

    Depth is the feeling of remoteness, or separateness, that accompanies awareness in human modalities like vision and audition. In specific cases depths can be graded on an ordinal scale, or even measured quantitatively on an interval scale. In the case of pictorial vision this is complicated by the

  14. The European Large Area ISO Survey

    DEFF Research Database (Denmark)

    Oliver, S.; Rowan-Robinson, M.; Alexander, D.M.

    2000-01-01

    We describe the European Large Area ISO Survey (ELAIS). ELAIS was the largest single Open Time project conducted by ISO, mapping an area of 12 deg(2) at 15 mu m with ISOCAM and at 90 mu m with ISOPHOT. Secondary surveys in other ISO bands were undertaken by the ELAIS team within the fields...

  15. Application of Microtremor Array Analysis to Estimate the Bedrock Depth in the Beijing Plain area

    Science.gov (United States)

    Xu, P.; Ling, S.; Liu, J.; Su, W.

    2013-12-01

    With the rapid expansion of large cities around the world, urban geological survey provides key information regarding resource development and urban construction. Among the major cities of the world, China's capital city Beijing is among the largest cities possessing complex geological structures. The urban geological survey and study in Beijing involves the following aspects: (1) estimating the thickness of the Cenozoic deposit; (2) mapping the three-dimensional structure of the underlying bedrock, as well as its relations to faults and tectonic settings; and (3) assessing the capacity of the city's geological resources in order to support its urban development and operation safety. The geological study of Beijing in general was also intended to provide basic data regarding the urban development and appraisal of engineering and environment geological conditions, as well as underground space resources. In this work, we utilized the microtremor exploration method to estimate the thickness of the bedrock depth, in order to delineate the geological interfaces and improve the accuracy of the bedrock depth map. The microtremor observation sites were located in the Beijing Plain area. Traditional geophysical or geological survey methods were not effective in these areas due to the heavy traffic and dense buildings in the highly-populated urban area. The microtremor exploration method is a Rayleigh-wave inversion technique which extracts its phase velocity dispersion curve from the vertical component of the microtremor array records using the spatial autocorrelation (SPAC) method, then inverts the shear-wave velocity structure. A triple-circular array was adopted for acquiring microtremor data, with the observation radius in ranging from 40 to 300 m, properly adjusted depending on the geological conditions (depth of the bedrock). The collected microtremor data are used to: (1) estimation of phase velocities of Rayleigh-wave from the vertical components of the microtremor

  16. In-depth survey of sunspot and active region catalogs

    Science.gov (United States)

    Lefèvre, Laure; Clette, Frédéric; Baranyi, Tunde

    2011-08-01

    When consulting detailed photospheric catalogs for solar activity studies spanning long time intervals, solar physicists face multiple limitations in the existing catalogs: finite or fragmented time coverage, limited time overlap between catalogs and even more importantly, a mismatch in contents and conventions. In view of a study of new sunspot-based activity indices, we have conducted a comprehensive survey of existing catalogs. In a first approach, we illustrate how the information from parallel catalogs can be merged to form a much more comprehensive record of sunspot groups. For this, we use the unique Debrecen Photoheliographic Data (DPD), which is already a composite of several ground observatories and SOHO data, and the USAF/Mount Wilson catalog from the Solar Optical Observing Network (SOON). We also describe our semi-interactive cross-identification method, which was needed to match the non-overlapping solar active region nomenclature, the most critical and subtle step when working with multiple catalogs. This effort, focused here first on the last two solar cycles, should lead to a better central database collecting all available sunspot group parameters to address future solar cycle studies beyond the traditional sunspot index time series Ri.

  17. Inversion of Airborne Electromagnetic Survey Data, Styx River Area, Alaska

    Science.gov (United States)

    Kass, A.; Minsley, B. J.; Smith, B. D.; Burns, L.; Emond, A.

    2014-12-01

    A joint effort by the US Geological Survey (USGS) and the Alaska Division of Geological & Geophysical Surveys (DGGS) aims to add value to public domain airborne electromagnetic (AEM) data, collected in Alaska, through the application of newly developed advanced inversion methods to produce resistivity depth sections along flight lines. Derivative products are new geophysical data maps, interpretative profiles and displays. An important task of the new processing is to facilitate calibration or leveling between adjacent surveys flown with different systems in different years. The new approach will facilitate integration of the geophysical data in the interpretation and construction of geologic framework, resource evaluations and to geotechnical studies. Four helicopter airborne electromagnetic (AEM) surveys have been flown in the Styx River area by the DGGS; Styx River, Middle Styx, East Styx, and Farewell. The Styx River flown in 2008 and Middle Styx in flown 2013, cover an area of 2300 square kilometers. These data consist of frequency-domain DIGHEM V surveys which have been numerically processed and interpreted to yield a three-dimensional model of electrical resistivity. We describe the numerical interpretation methodology (inversion) in detail, from quality assessment to interpretation. We show two methods of inversion used in these datasets, deterministic and stochastic, and describe how we use these results to define calibration parameters and assess the quality of the datasets. We also describe the difficulties and procedures for combining datasets acquired at different times.

  18. Estimated Depth to Ground Water and Configuration of the Water Table in the Portland, Oregon Area

    Science.gov (United States)

    Snyder, Daniel T.

    2008-01-01

    Reliable information on the configuration of the water table in the Portland metropolitan area is needed to address concerns about various water-resource issues, especially with regard to potential effects from stormwater injection systems such as UIC (underground injection control) systems that are either existing or planned. To help address these concerns, this report presents the estimated depth-to-water and water-table elevation maps for the Portland area, along with estimates of the relative uncertainty of the maps and seasonal water-table fluctuations. The method of analysis used to determine the water-table configuration in the Portland area relied on water-level data from shallow wells and surface-water features that are representative of the water table. However, the largest source of available well data is water-level measurements in reports filed by well constructors at the time of new well installation, but these data frequently were not representative of static water-level conditions. Depth-to-water measurements reported in well-construction records generally were shallower than measurements by the U.S. Geological Survey (USGS) in the same or nearby wells, although many depth-to-water measurements were substantially deeper than USGS measurements. Magnitudes of differences in depth-to-water measurements reported in well records and those measured by the USGS in the same or nearby wells ranged from -119 to 156 feet with a mean of the absolute value of the differences of 36 feet. One possible cause for the differences is that water levels in many wells reported in well records were not at equilibrium at the time of measurement. As a result, the analysis of the water-table configuration relied on water levels measured during the current study or used in previous USGS investigations in the Portland area. Because of the scarcity of well data in some areas, the locations of select surface-water features including major rivers, streams, lakes, wetlands, and

  19. NOAA ESRI Grid - depth predictions bathymetry model in New York offshore planning area from Biogeography Branch

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset represents depth predictions from a bathymetric model developed for the New York offshore spatial planning area. The model also includes...

  20. The impact from survey depth and resolution on the morphological classification of galaxies

    CERN Document Server

    Pović, M; Masegosa, J; Perea, J; del Olmo, A; Simpson, C; Aguerri, J A L; Ascaso, B; Jiménez-Teja, Y; López-Sanjuan, C; Molino, A; Pérez-García, A M; Viironen, K; Husillos, C; Cristóbal-Hornillos, D; Caldwell, C; Benítez, N; Alfaro, E; Aparicio-Villegas, T; Broadhurst, T; Cabrera-Caño, J; Castander, F J; Cepa, J; Cerviño, M; Fernández-Soto, A; Delgado, R M González; Infante, L; Martínez, V J; Moles, M; Prada, F; Quintana, J M

    2015-01-01

    We consistently analyse for the first time the impact of survey depth and spatial resolution on the most used morphological parameters for classifying galaxies through non-parametric methods: Abraham and Conselice-Bershady concentration indices, Gini, M20 moment of light, asymmetry, and smoothness. Three different non-local datasets are used, ALHAMBRA and SXDS (examples of deep ground-based surveys), and COSMOS (deep space-based survey). We used a sample of 3000 local, visually classified galaxies, measuring their morphological parameters at their real redshifts (z ~ 0). Then we simulated them to match the redshift and magnitude distributions of galaxies in the non-local surveys. The comparisons of the two sets allow to put constraints on the use of each parameter for morphological classification and evaluate the effectiveness of the commonly used morphological diagnostic diagrams. All analysed parameters suffer from biases related to spatial resolution and depth, the impact of the former being much stronger....

  1. 5 CFR 591.216 - How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas?

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas? 591.216 Section 591.216 Administrative... combine survey data for the DC area and for COLA areas with multiple survey areas? (a) Washington,...

  2. Flood inundation extent and depth in selected areas of Louisiana in August 2016

    Science.gov (United States)

    Heal, Elizabeth; Watson, Kara M.

    2017-01-01

    A slow-moving area of low pressure and a high amount of atmospheric moisture produced heavy rainfall across Louisiana and southwest Mississippi in August 2016. Over 31 inches of rain was reported in Watson, 30 miles northeast of Baton Rouge, over the duration of the event. The result was major flooding that occurred in the southern portions of Louisiana and included areas surrounding Baton Rouge and Lafayette along rivers such as the Amite, Comite, Tangipahoa, Tickfaw, Vermilion, and Mermentau. The U.S. Geological Survey (USGS) Lower Mississippi-Gulf Water Science Center operates many continuous, streamflow-gaging stations in the impacted area.  Peak streamflows of record were measured at 10 locations, and seven other locations experienced peak streamflows ranking in the top 5 for the duration of the period of record. In August 2016, USGS personnel  made fifty streamflow measurements at 21 locations on streams in Louisiana. Many of those streamflow measurements were made for the purpose of verifying the accuracy of the stage-streamflow relation at the associated gaging station. USGS personnel also recovered and documented 590 high-water marks after the storm event by noting the location and height of the water above land surface. Many of these high water marks were used to create twelve flood-inundation maps for selected communities of Louisiana that experienced flooding in August 2016. This data release provides the actual flood-depth measurements made in selected river basins of Louisiana that were used to produce the flood-inundation maps published in the companion product (Watson and others, 2017). 

  3. U.S. Geological Survey Combined Well-Bore Flow and Depth-Dependent Water Sampler

    Science.gov (United States)

    Izbicki, John A.; Christensen, Allen H.; Hanson, Randall T.; Martin, Peter; Crawford, Steven M.; Smith, Gregory A.

    1999-01-01

    The U.S. Geological Survey has developed a combined well-bore flow and depth-dependent sample collection tool. It is suitable for use in existing production wells having limited access and clearances as small as 1 inch. The combination of well-bore flow and depth-dependent water-quality data is especially effective in assessing changes in aquifer properties and water quality with depth. These are direct measures of changes in well yield and ground-water quality with depth under actual operating conditions. Combinations of other geophysical tools capable of making these measurements, such as vertical-axis current meters used with wire-line samplers, are commercially available but these tools are large and can not easily enter existing production wells.

  4. An Analysis of "In-Depth" Schools Conducted by Area Extension Agents in the Agricultural Industry.

    Science.gov (United States)

    Cunningham, Clarence J.

    The Ohio Extension Service conducted "in-depth" schools on Dairy Genetics and Reproduction, Beef Cattle, Capital Management, and Fertilizer and Lime at area centers in Wooster, Defiance and Fremont, Washington Court House, and McConnellsville. Two thirds of the instructional staff were area agents; others were specialists, resident…

  5. Environmental radioactivity survey in Andong area

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Zi Hong; Jo, Kum Ju [Andong Regional Radioactivity Monitoring Station, Andong National Univ., Andong (Korea, Republic of)

    2001-12-15

    The objectives of the project are to monitor an abnormal level in Andong area and to provide a base-line data on environmental radiation/radioactivity levels in case of any radiological emergency situation. The project is important in view of protecting the public health from the potential hazards of radiation and keeping up the clean environment. This report summarizes and interprets environmental radiation/radioactivity monitoring samples Gamma exposure rates, airborne dust, precipitation, fall-out and drinking-water. Environmental samples : vegetables, fishes/shellfishes, fruits, starch and starch roots and drinking waters. Among the all 2001 radiological monitoring and environmental data in Andong area were not found the extraordinary data. And a nation-wide environmental radiation/radioactivity level survey results were all background levels attributed to terrestrial and cosmic radiation.

  6. In-depth survey report of Early and Daniel Co. , Inc. , Louisville, Kentucky

    Energy Technology Data Exchange (ETDEWEB)

    Zaebst, D.D.

    1986-09-01

    An in-depth industrial hygiene survey was conducted to evaluate worker exposures to phosphine during fumigation of grain at the Early and Daniel Co. grain elevator in Louisville, Kentucky. Stored grain was fumigated using aluminum phosphide. Aluminum-phosphide pellets were also added directly to the grain by the blender as it was poured into the storage containers. Local exhaust ventilation was used at points in the grain-moving system where grain dust was generated. Air samples were taken during full-shift periods at the breathing zone of the weighmaster, two bin floormen, and the blender. Area monitoring samples were also taken. If the operators spend considerable time in the vicinity of a bin which is being filled with grain, there is a likelihood of far greater exposure levels being noted. According to the author, further studies of the use of phosphide products at other elevators should be conducted to determine the effect of environmental and process parameters on phosphine exposures.

  7. Subsalt Depth Seismic Imaging and Structural Interpretation in Dumre Area, Albania.

    OpenAIRE

    Jardin A.; Roure F.; Nikolla L.

    2011-01-01

    The challenge of seismic exploration in fold and thrust belt settings is to optimize the depth seismic images of the deep structural objectives beneath a complex overburden that may show strong horizontal and vertical velocity variations. In such areas, the seismic image is frequently of poor quality and the depth models of deep layers is often false due to the perturbed propagation of seismic energy through the deforming lens of the overlying layers. A range of seismic processing tools, incl...

  8. High Resolution Marine Magnetic Survey of Shallow Water Littoral Area

    Directory of Open Access Journals (Sweden)

    Jacob Sharvit

    2007-09-01

    Full Text Available The purpose of this paper is to present a system developed for detection andaccurate mapping of ferro-metallic objects buried below the seabed in shallow waters. Thesystem comprises a precise magnetic gradiometer and navigation subsystem, both installedon a non-magnetic catamaran towed by a low-magnetic interfering boat. In addition wepresent the results of a marine survey of a near-shore area in the vicinity of Atlit, a townsituated on the Mediterranean coast of Israel, about 15 km south of Haifa. The primarypurpose of the survey was to search for a Harvard airplane that crashed into the sea in 1960.A magnetic map of the survey area (3.5 km2 on a 0.5 m grid was created revealing theanomalies at sub-meter accuracy. For each investigated target location a correspondingferro-metallic item was dug out, one of which turned to be very similar to a part of thecrashed airplane. The accuracy of location was confirmed by matching the position of theactual dug artifacts with the magnetic map within a range of ± 1 m, in a water depth of 9 m.

  9. Geodetic surveys in Messina straits area

    Science.gov (United States)

    Baldi, P.; Achilli, V.; Mulargia, F.; Broccio, F.

    1983-03-01

    By using the fit of theoretical displacements on a fault according to Mindlin and Cheng (1950) dislocation theory, the vertical deformation field (maximum subsidence of 70 cm) associated to the Dec. 28 1908 Messina M=7.0 earthquake is compared to the results of a spirit levelling survey that we performed in the Messina Straits area in 1981 1982. The differences in level from the last levelling campaign in the area, completed in 1970, show that the coastlines have undergone a moderate differential subsidence of about 1 mm/year in the last decade. This is in agreement with the trend observed around 1908 and with the data of the Messina tide-gauge relative to the period 1897 1908 and 1910 1918. The lack of data in the period 1918 1970 does not allow definite conclusions about the vertical tectonic deformations in the area. Recent data on planimetric deformations have shown a South-North relative motion of Sicily. A comparison with the theoretical displacements indicates that a pure dip-slip of 4 cm on the 1908 fault system does explain the observed vertical deformation, but not the horizontal.

  10. Study of snow cover area and depth variation of the Tianshan Mountains

    Science.gov (United States)

    Tao, Jianwei; Qin, Qiming

    2008-10-01

    Based on the image characteristics of Tianshan Mountains, using multi-temporal multi-band NOAA/AVHRR, MODIS images, combined with high resolution CBERS-1/2 and ETM images, a model for estimating the area of snow cover and the depth of snow cover at different places was proposed. The snow cover variation characteristics including the distribution of snow cover, the depth of snow cover and the drawing method for snow cover were focused. Based on the model, the snow cover of the area along Tianshan Highway from 1996-2006 was studied.

  11. Depth distribution of Moho and tectonic framework in eastern Asian continent and its adjacent ocean areas

    Institute of Scientific and Technical Information of China (English)

    TENG; Jiwen; (滕吉文); ZENG; Rongsheng; (曾融生); YAN; Yafen; (闫雅芬); ZHANG; Hui; (张慧)

    2003-01-01

    With the results of interpretation of seismic sounding profiles acquired in the past 30 years in the continent of China and its adjacent countries andocean regions, such as Russia, Kazakhstan, Japan, India, Pakistan, Philippine ocean basin, Pacific and Indian Ocean, we compiled a 2D Moho distribution map forthe continent and its adjacent areas of eastern Asia. From the features of depth distribution and undulation of Moho, it is suggested that the eastern Asian region can be divided into 18 gradient belts with different sizes, 18 crustal blocks, 20 sediment basins and depression zones. The depth of Moho varies smoothly in each block, while the boundary (separating different blocks) delineates the abrupt variation of Moho depth. Then, some subjects,such as oregen and sediment basin, fault system and rift, plate boundary, ocean-continent coupling and tectonic framework, are discussed based on the distribution gradient belts and block partition features of Moho depth in the eastern Asia and its adjacent regions.

  12. A modified DOI-based method to statistically estimate the depth of investigation of dc resistivity surveys

    Science.gov (United States)

    Deceuster, John; Etienne, Adélaïde; Robert, Tanguy; Nguyen, Frédéric; Kaufmann, Olivier

    2014-04-01

    Several techniques are available to estimate the depth of investigation or to identify possible artifacts in dc resistivity surveys. Commonly, the depth of investigation (DOI) is mainly estimated by using an arbitrarily chosen cut-off value on a selected indicator (resolution, sensitivity or DOI index). Ranges of cut-off values are recommended in the literature for the different indicators. However, small changes in threshold values may induce strong variations in the estimated depths of investigation. To overcome this problem, we developed a new statistical method to estimate the DOI of dc resistivity surveys based on a modified DOI index approach. This method is composed of 5 successive steps. First, two inversions are performed by using different resistivity reference models for the inversion (0.1 and 10 times the arithmetic mean of the logarithm of the observed apparent resistivity values). Inversion models are extended to the edges of the survey line and to a depth range of three times the pseudodepth of investigation of the largest array spacing used. In step 2, we compute the histogram of a newly defined scaled DOI index. Step 3 consists of the fitting of the mixture of two Gaussian distributions (G1 and G2) to the cumulative distribution function of the scaled DOI index values. Based on this fitting, step 4 focuses on the computation of an interpretation index (II) defined for every cell j of the model as the relative probability density that the cell j belongs to G1, which describes the Gaussian distribution of the cells with a scaled DOI index close to 0.0. In step 5, a new inversion is performed by using a third resistivity reference model (the arithmetic mean of the logarithm of the observed apparent resistivity values). The final electrical resistivity image is produced by using II as alpha blending values allowing the visual discrimination between well-constrained areas and poorly-constrained cells.

  13. Nearshore Bathymetric Change Resolved by Depth Inversions, Sonic Altimeters, and In-Situ Surveys

    Science.gov (United States)

    Brodie, K. L.; Palmsten, M. L.; Hesser, T.; Dickhudt, P.; Ladner, H.; Elgar, S.; Raubenheimer, B.; Penko, A.

    2016-12-01

    Video-based remote sensing of shoaling and breaking surface gravity waves combined with a depth-inversion algorithm, cBathy, may be able to provide bathymetry information with high spatial and temporal resolution in the nearshore (Holman et al., 2013, JGR, Vol 118). Although the accuracy of cBathy has been assessed in low-wave conditions when coincident in-situ surveys are available, it has not been tested for many conditions with significant wave height > 1.5 m. During high wave conditions, the use of linear wave theory in the depth-inversion algorithm may result in estimates of water depth that are too deep. Here, measurements from an in-situ array of sonic altimeters and from frequent watercraft surveys are used to assess the ability of cBathy to estimate the spatio-temporal evolution of the seafloor during a range of wave conditions at a micro-tidal sandy beach in Duck, NC. Observations were collected continuously from 14 October to 01 November 2015 with 8 altimeters in 1.5 to 4 m water depth on 2 cross-shore transects separated by 75 m in the alongshore during waves that ranged from 0.5 to 1.0 m. Nearshore bathymetry was alongshore variable, with a crescentic bar that attached to the shoreline along one transect and was 150 m offshore along the other transect. Sand levels changed by as much as 1 m in some locations. Additional measurements were collected with 3 altimeters on a single cross-shore transect for 6 months, with wave heights from 0.3 to 5.0 m and sand level fluctuations of up to 1 m in a single day. Initial comparisons with surveys show cBathy RMSE and bias are of similar magnitude to prior studies. Although cBathy resolves the large-scale spatial morphology of the sandbar, when Hs > 1.3 m cBathy estimates of the sandbar location are 10 to 50 m onshore of the surveyed location. cBathy uncertainty estimates were a poor representation of actual errors when compared with the surveys. Six-month-long time series of altimeter data will be used to assess c

  14. 78 FR 68023 - Annual Surveys in the Manufacturing Area

    Science.gov (United States)

    2013-11-13

    ... Bureau of the Census Annual Surveys in the Manufacturing Area AGENCY: Bureau of the Census, Department of... the 2014 Annual Surveys in the Manufacturing Area. The 2014 Annual Surveys consist of the Annual.... FOR FURTHER INFORMATION CONTACT: Mendel D. Gayle, Chief, Manufacturing and Construction Division at...

  15. 78 FR 1833 - Annual Surveys in the Manufacturing Area

    Science.gov (United States)

    2013-01-09

    ... Bureau of the Census Annual Surveys in the Manufacturing Area AGENCY: Bureau of the Census, Department of... the 2013 Annual Surveys in the Manufacturing Area. The 2013 Annual Surveys consist of the Annual..., Manufacturing and Construction Division at (301) 763-4587 or by email at mendel.d.gayle@census.gov...

  16. Gain Modulation as a Mechanism for Coding Depth from Motion Parallax in Macaque Area MT.

    Science.gov (United States)

    Kim, HyungGoo R; Angelaki, Dora E; DeAngelis, Gregory C

    2017-08-23

    Observer translation produces differential image motion between objects that are located at different distances from the observer's point of fixation [motion parallax (MP)]. However, MP can be ambiguous with respect to depth sign (near vs far), and this ambiguity can be resolved by combining retinal image motion with signals regarding eye movement relative to the scene. We have previously demonstrated that both extra-retinal and visual signals related to smooth eye movements can modulate the responses of neurons in area MT of macaque monkeys, and that these modulations generate neural selectivity for depth sign. However, the neural mechanisms that govern this selectivity have remained unclear. In this study, we analyze responses of MT neurons as a function of both retinal velocity and direction of eye movement, and we show that smooth eye movements modulate MT responses in a systematic, temporally precise, and directionally specific manner to generate depth-sign selectivity. We demonstrate that depth-sign selectivity is primarily generated by multiplicative modulations of the response gain of MT neurons. Through simulations, we further demonstrate that depth can be estimated reasonably well by a linear decoding of a population of MT neurons with response gains that depend on eye velocity. Together, our findings provide the first mechanistic description of how visual cortical neurons signal depth from MP.SIGNIFICANCE STATEMENT Motion parallax is a monocular cue to depth that commonly arises during observer translation. To compute from motion parallax whether an object appears nearer or farther than the point of fixation requires combining retinal image motion with signals related to eye rotation, but the neurobiological mechanisms have remained unclear. This study provides the first mechanistic account of how this interaction takes place in the responses of cortical neurons. Specifically, we show that smooth eye movements modulate the gain of responses of neurons in

  17. Moho Depth Derived from Gravity Data in the Taiwan Strait Area

    Directory of Open Access Journals (Sweden)

    Hsien-Hsiang Hsieh

    2010-01-01

    Full Text Available We have constructed are gional Bouguer gravity anomaly map using marine and land data from Tai wan and the Chinese province of Fuchien, as well as SEASAT altimetry-de rived gravity data for the Tai wan Strait and its surrounding area. The map shows isogals trending generally in a NE-SW direction, conforming with the over all shallower geo logical strike of the strait. Removing gravity effects generated by the water layer and seafloor to pography, the regional Bouguer gravity anomaly is obtained, reflecting the subsurface structure. Moho depth is then computed by the Parker-Oldenburg iterative method from the regional Bouguer gravity data set. Over the strait area, the geometry of the Moho relief is smooth with an average depth of about 30 km, except for the Penghu up lift. Moho depth is shallower in the Taiwan Strait and thickens to ward both sides of the strait. The relatively shallower Moho depth, reaching up to 28 km, is convex up ward underneath the Penghu uplift.

  18. Moho Depth Derived from Gravity Data in the Taiwan Strait Area

    Directory of Open Access Journals (Sweden)

    Hsien-Hsiang Hsieh

    2010-01-01

    Full Text Available We have constructed are gional Bouguer gravity anomaly map using marine and land data from Tai wan and the Chinese province of Fuchien, as well as SEASAT altimetry-de rived gravity data for the Tai wan Strait and its surrounding area. The map shows isogals trending generally in a NE-SW direction, conforming with the over all shallower geo logical strike of the strait. Removing gravity effects generated by the water layer and seafloor to pography, the regional Bouguer gravity anomaly is obtained, reflecting the subsurface structure. Moho depth is then computed by the Parker-Oldenburg iterative method from the regional Bouguer gravity data set. Over the strait area, the geometry of the Moho relief is smooth with an average depth of about 30 km, except for the Penghu up lift. Moho depth is shallower in the Taiwan Strait and thickens to ward both sides of the strait. The relatively shallower Moho depth, reaching up to 28 km, is convex up ward underneath the Penghu uplift.

  19. Numerical simulation and inversion of offshore area depth based on x-band microwave radar

    Institute of Scientific and Technical Information of China (English)

    WANG Li; WU Xiongbin; PI Xiaoshan; MA Ketao; LIU Jianfei; TIAN Yun

    2015-01-01

    A detection method of offshore area depth utilizing the x-band microwave radar is proposed. The method is based on the sea clutter imaging mechanism of microwave radar, and combined with dispersion equation of the liner wave theorem and least square method (LSM), consequently get the inversion results of water depth in the detected region. The wave monitoring system OSMAR-X exploited by the Ocean State Laborato-ry, Wuhan University, based on a microwave radar has proven to be a powerful tool to monitor ocean waves in time and space. Numerical simulation and inversion of offshore area depth are carried out here; since JONSWAP model can give description of stormy waves in different growth phase, it is suitable for simulation. Besides, some results from measured data detected by OSMAR-X x-band radar located at Longhai of Fujian Province, China, validates this method. The tendency of the average water depths inferred from the radar images is in good agreement with the tide level detected by Xiamen tide station. These promising results suggest the possibility of using OSMAR-X to monitor operationally morphodynamics in coastal zones. This method can be applied to both shore-based and shipborne x-band microwave radar.

  20. Water surface area and depth determine oviposition choice in Aedes albopictus (Diptera: Culicidae).

    Science.gov (United States)

    Reiskind, Michael H; Zarrabi, Ali A

    2012-01-01

    Oviposition choice is a well-studied aspect of the mosquito life cycle, and offers a potential avenue for species-specific surveillance and control. In container inhabiting mosquitoes, there has been a focus on how the components of the aquatic media determine choice, with little work on the physical characteristics of the containers themselves. We performed five experiments examining the effect of physical container parameters on oviposition choice by Aedes albopictus. We examined containers of three different surface areas (small, 496 cm2; medium, 863 cm2; and large, 1,938 cm2) at the same water depth and the same or different heights in a series of binary choice assays. We also examined different depths with the same surface area in clear containers (where the depth may be perceived by the darkness of the water) and in opaque containers, which appear uniformly dark at different depths. We found a significant preference for medium containers over large containers, whether the containers were different or the same heights, and a trend toward a preference for small containers over medium containers. There was a preference for deeper water regardless of whether containers were clear or opaque. These behaviors suggest mosquitoes take into account physical aspects of their habitats and their oviposition choices are consistent with minimizing the risk of habitat drying.

  1. The PALFA Survey: Going to great depths to find radio pulsars

    CERN Document Server

    Lazarus, P; Bhat, N D R; Bogdanov, S; Bouchard, A; Brazier, A; Camilo, F; Cardoso, F; Chatterjee, S; Cordes, J M; Crawford, F; Deneva, J S; Desvignes, G; Freire, P C C; Hessels, J W T; Jenet, F A; Kaspi, V M; Knispel, B; van Leeuwen, J; Lorimer, D R; Lynch, R; Lyne, A G; McLaughlin, M A; Nice, D J; Ransom, S M; Scholz, P; Siemens, X; Stairs, I H; Stappers, B W; Stovall, K; Swiggum, J

    2012-01-01

    The on-going PALFA survey is searching the Galactic plane (|b| < 5 deg., 32 < l < 77 deg. and 168 < l < 214 deg.) for radio pulsars at 1.4 GHz using ALFA, the 7-beam receiver installed at the Arecibo Observatory. By the end of August 2012, the PALFA survey has discovered 100 pulsars, including 17 millisecond pulsars (P < 30 ms). Many of these discoveries are among the pulsars with the largest DM/P ratios, proving that the PALFA survey is capable of probing the Galactic plane for millisecond pulsars to a much greater depth than any previous survey. This is due to the survey's high sensitivity, relatively high observing frequency, and its high time and frequency resolution. Recently the rate of discoveries has increased, due to a new more sensitive spectrometer, two updated complementary search pipelines, the development of online collaborative tools, and access to new computing resources. Looking forward, focus has shifted to the application of artificial intelligence systems to identify puls...

  2. Method for the Preparation of Hazard Map in Urban Area Using Soil Depth and Groundwater Level

    Science.gov (United States)

    Kim, Sung-Wook; Choi, Eun-Kyeong; Cho, Jin Woo; Lee, Ju-Hyoung

    2017-04-01

    The hazard maps for predicting collapse on natural slopes consists of a combination of topographic, hydrological, and geological factors. Topographic factors are extracted from DEM, including aspect, slope, curvature, and topographic index. Hydrological factors, such as distance to drainage, drainage density, stream-power index, and wetness index are most important factors for slope instability. However, most of the urban areas are located on the plains and it is difficult to apply the hazard map using the topography and hydrological factors. In order to evaluate the risk of collapse of flat and low slope areas, soil depth and groundwater level data were collected and used as a factor for interpretation. In addition, the reliability of the hazard map was compared with the disaster history of the study area (Gangnam-gu and Yeouido district). In the disaster map of the disaster prevention agency, the urban area was mostly classified as the stable area and did not reflect the collapse history. Soil depth, drainage conditions and groundwater level obtained from boreholes were added as input data of hazard map, and disaster vulnerability increased at the location where the actual collapse points. In the study area where damage occurred, the moderate and low grades of the vulnerability of previous hazard map were 12% and 88%, respectively. While, the improved map showed 2% high grade, moderate grade 29%, low grade 66% and very low grade 2%. These results were similar to actual damage. Keywords: hazard map, urban area, soil depth, ground water level Acknowledgement This research was supported by a Grant from a Strategic Research Project (Horizontal Drilling and Stabilization Technologies for Urban Search and Rescue (US&R) Operation) funded by the Korea Institute of Civil Engineering and Building Technology.

  3. An Active Area Model of Rapid Infiltration Response at Substantial Depth in the Unsaturated Zone

    Science.gov (United States)

    Mitchell, L.; Nimmo, J. R.

    2011-12-01

    In a porous medium subject to preferential flow, response to surface water infiltration can occur rapidly even at substantial depth in the unsaturated zone. In a ponding experiment at the Idaho National Laboratory (INL) the profile of undisturbed natural soil, seasonally dry at the start, was observed to approach field saturation throughout a 2 meter depth within 6 hours (Nimmo and Perkins, 2007). Traditional use of Richards' equation would require an unrealistically large unsaturated hydraulic conductivity of 40 m/day to capture the observed non-classic wetting behavior. Here we present a model for rapid flow using an active area concept similar to the active fracture model (Liu and others, 1998, WRR 34:2633-2646). The active area concept is incorporated within the preferential flow domain (which allows rapid downward movement) of a dual-domain model that also contains a diffuse-flow domain in which flow can be described by Richards' equation. Development of the active area model is motivated by observation of rapid wetting at substantial depth, as well as a phenomenon in which deep flow is observed before shallow flow. In this model water movement in the preferential domain can be physically conceptualized as laminar flow in free-surface films of constant average thickness. For a given medium, the preferential domain is characterized by an effective areal density (area per unit bulk volume) that describes the free-surface film capacity of the domain as a function of depth. The active area is defined as a portion of the effective areal density that dictates the depth and temporal distribution of domain-exchange and new infiltration within the preferential domain. With the addition of the active area concept, the model is capable of simulating non-diffusive vertical transport patterns. Advantages of the model include simulating rapid response for a variety of infiltration types, including ponding and rain events, as well as modeling relatively rapid aquifer

  4. The Hengill geothermal area, Iceland: variation of temperature gradients deduced from the maximum depth of seismogenesis

    Science.gov (United States)

    Foulger, G.R.

    1995-01-01

    Given a uniform lithology and strain rate and a full seismic data set, the maximum depth of earthquakes may be viewed to a first order as an isotherm. These conditions are approached at the Hengill geothermal area, S. Iceland, a dominantly basaltic area. The temperature at which seismic failure ceases for the strain rates likely at the Hengill geothermal area is determined by analogy with oceanic crust, and is about 650 ?? 50??C. The topographies of the top and bottom of the seismogenic layer were mapped using 617 earthquakes. The thickness of the seismogenic layer is roughly constant and about 3 km. A shallow, aseismic, low-velocity volume within the spreading plate boundary that crosses the area occurs above the top of the seismogenic layer and is interpreted as an isolated body of partial melt. The base of the seismogenic layer has a maximum depth of about 6.5 km beneath the spreading axis and deepens to about 7 km beneath a transform zone in the south of the area. -from Author

  5. In-Depth Coursework in Undergraduate Inorganic Chemistry: Results from a National Survey of Inorganic Chemistry Faculty

    Science.gov (United States)

    Raker, Jeffrey R.; Reisner, Barbara A.; Smith, Sheila R.; Stewart, Joanne L.; Crane, Johanna L.; Pesterfield, Les; Sobel, Sabrina G.

    2015-01-01

    A national survey of inorganic chemists explored the self-reported topics covered in in-depth inorganic chemistry courses at the postsecondary level; an in-depth course is defined by the American Chemical Society's Committee on Professional Training as a course that integrates and covers topics that were introduced in introductory and foundation…

  6. In-Depth Coursework in Undergraduate Inorganic Chemistry: Results from a National Survey of Inorganic Chemistry Faculty

    Science.gov (United States)

    Raker, Jeffrey R.; Reisner, Barbara A.; Smith, Sheila R.; Stewart, Joanne L.; Crane, Johanna L.; Pesterfield, Les; Sobel, Sabrina G.

    2015-01-01

    A national survey of inorganic chemists explored the self-reported topics covered in in-depth inorganic chemistry courses at the postsecondary level; an in-depth course is defined by the American Chemical Society's Committee on Professional Training as a course that integrates and covers topics that were introduced in introductory and foundation…

  7. Airborne radar surveys of snow depth over Antarctic sea ice during Operation IceBridge

    Science.gov (United States)

    Panzer, B.; Gomez-Garcia, D.; Leuschen, C.; Paden, J. D.; Gogineni, P. S.

    2012-12-01

    comparison of snow depths with two weeks elapsed between passes. [1] Farrell, S.L., et al., "A First Assessment of IceBridge Snow and Ice Thickness Data Over Arctic Sea Ice," IEEE Tran. Geoscience and Remote Sensing, Vol. 50, No. 6, pp. 2098-2111, June 2012. [2] Kwok, R., and G. F. Cunningham, "ICESat over Arctic sea ice: Estimation of snow depth and ice thickness," J. Geophys. Res., 113, C08010, 2008. [3] Kwok, R., et al., "Airborne surveys of snow depth over Arctic sea ice," J. Geophys. Res., 116, C11018, 2011. [4] Panzer, B., et al., "An ultra-wideband, microwave radar for measuring snow thickness on sea ice and mapping near-surface internal layers in polar firn," Submitted to J. Glaciology, July 23, 2012. [5] Wingham, D.J., et al., "CryoSat: A Mission to Determine the Fluctuations in Earth's Land and Marine Ice Fields," Advances in Space Research, Vol. 37, No. 4, pp. 841-871, 2006. [6] Zwally, H. J., et al., "ICESat's laser measurements of polar ice, atmosphere, ocean, and land," J. Geodynamics, Vol. 34, No. 3-4, pp. 405-445, Oct-Nov 2002. [7] Zwally, H. J., et al., "ICESat measurements of sea ice freeboard and estimates of sea ice thickness in the Weddell Sea," J. Geophys. Res., 113, C02S15, 2008.

  8. Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities

    Directory of Open Access Journals (Sweden)

    Zawierucha Krzysztof

    2016-06-01

    Full Text Available Water bears (Tardigrada are known as one of the most extremophile animals in the world. They inhabit environments from the deepest parts of the oceans up to the highest mountains. One of the most extreme and still poorly studied habitats which tardigrades inhabit are cryoconite holes. We analysed the relation between area, depth, elevation and tardigrades densities in cryoconite holes on four glaciers on Spitsbergen. The mean (±SD of cryoconite area was 1287.21±2400.8 cm2, while the depth was on average 10.8±11.2 cm, the elevation 172.6±109.66 m a.s.l., and tardigrade density 24.9±33.0 individuals per gram of wet material (n = 38. The densities of tardigrades on Hans Glacier reached values of up to 168 ind. cm3, 104 ind. g−1 wet weight, and 275 ind. g−1 dry weight. The densities of tardigrades of the three glaciers in Billefjorden were up to 82 ind. cm2, 326 ind. g−1 wet weight and 624 ind. g−1 dry weight. Surprisingly, although the model included area, depth and elevation as independent variables, it cannot explain Tardigrada density in cryoconite holes. We propose that due to the rapid melting of the glacier surface in the Arctic, the constant flushing of cryoconite sediments, and inter-hole water-sediment mixing, the functioning of these ecosystems is disrupted. We conclude that cryoconite holes are dynamic ecosystems for microinvertebrates in the Arctic.

  9. Wave climate, sediment supply and the depth of the sand-mud transition: A global survey

    Science.gov (United States)

    George, D.A.; Hill, P.S.

    2008-01-01

    The influences of wave climate and sediment supply on the depths of sand-mud transitions (hSMT) are investigated. Depths of sand-mud transitions (SMT) are based on published granulometric data from surface samples gathered from 14 sites in different wave-dominated coastal environments with fluvial input, including high energy (Columbia, Eel, Russian, San Lorenzo, Copper, and Nepean rivers), moderate energy (Ebro, Nile, Santa Clara, Tseng-wen and Kao-ping rivers), and low energy (Po, Pescara and Tronto rivers) regimes. Geometric mean diameter (GMD) and mud percent are compiled from samples along shore-normal transects, and significant correlation is found between these two textural descriptors. Nominally, the SMT is defined as the transition from GMD > 63????m to 25% mud. This dual definition is applied to the 14 systems, and hSMT is tabulated for each system. Correlation is found between hSMT and the depth at which wave-induced bottom shear stress equals the critical erosion shear stress of the largest mud particles and also between hSMT and significant wave height. Lack of correlation between hSMT and sediment load of nearby rivers indicates either that the influence of sediment supply on depth of the sand-mud transition is small or is not adequately represented in this study. Shelf width and slope do not correlate with residuals from a formalized linear relationship between hSMT and significant wave height. The relationship between hSMT and wave climate is useful for calibration of numerical models of erosion and deposition in wave-dominated coastal environments, for prediction of seabed properties in remote or inaccessible areas, and for reconstruction of paleodepth based on facies changes from sand to mud in ancient rocks. ?? 2008.

  10. Autostereoscopic 3D Display with Long Visualization Depth Using Referential Viewing Area-Based Integral Photography.

    Science.gov (United States)

    Hongen Liao; Dohi, Takeyoshi; Nomura, Keisuke

    2011-11-01

    We developed an autostereoscopic display for distant viewing of 3D computer graphics (CG) images without using special viewing glasses or tracking devices. The images are created by employing referential viewing area-based CG image generation and pixel distribution algorithm for integral photography (IP) and integral videography (IV) imaging. CG image rendering is used to generate IP/IV elemental images. The images can be viewed from each viewpoint within a referential viewing area and the elemental images are reconstructed from rendered CG images by pixel redistribution and compensation method. The elemental images are projected onto a screen that is placed at the same referential viewing distance from the lens array as in the image rendering. Photographic film is used to record the elemental images through each lens. The method enables 3D images with a long visualization depth to be viewed from relatively long distances without any apparent influence from deviated or distorted lenses in the array. We succeeded in creating an actual autostereoscopic images with an image depth of several meters in front of and behind the display that appear to have 3D even when viewed from a distance.

  11. The Wide Area VISTA Extra-galactic Survey (WAVES)

    CERN Document Server

    Driver, Simon P; Meyer, Martin; Power, Chris; Robotham, Aaron S G; Baldry, Ivan K; Liske, Jochen; Norberg, Peder

    2015-01-01

    The "Wide Area VISTA Extra-galactic Survey" (WAVES) is a 4MOST Consortium Design Reference Survey which will use the VISTA/4MOST facility to spectroscopically survey ~2million galaxies to $r_{\\rm AB} < 22$ mag. WAVES consists of two interlocking galaxy surveys ("WAVES-Deep" and "WAVES-Wide"), providing the next two steps beyond the highly successful 1M galaxy Sloan Digital Sky Survey and the 250k Galaxy And Mass Assembly survey. WAVES will enable an unprecedented study of the distribution and evolution of mass, energy, and structures extending from 1-kpc dwarf galaxies in the local void to the morphologies of 200-Mpc filaments at $z\\sim1$. A key aim of both surveys will be to compare comprehensive empirical observations of the spatial properties of galaxies, groups, and filaments, against state-of-the-art numerical simulations to distinguish between various Dark Matter models.

  12. Drones application on snow and ice surveys in alpine areas

    Science.gov (United States)

    La Rocca, Leonardo; Bonetti, Luigi; Fioletti, Matteo; Peretti, Giovanni

    2015-04-01

    First results from Climate change are now clear in Europe, and in Italy in particular, with the natural disasters that damaged irreparably the territory and the habitat due to extreme meteorological events. The Directive 2007/60/EC highlight that an "effective natural hazards prevention and mitigation that requires coordination between Member States above all on natural hazards prevention" is necessary. A climate change adaptation strategy is identified on the basis of the guidelines of the European Community program 2007-2013. Following the directives provided in the financial instrument for civil protection "Union Civil Protection Mechanism" under Decision No. 1313/2013 / EU of the European Parliament and Council, a cross-cutting approach that takes into account a large number of implementation tools of EU policies is proposed as climate change adaptation strategy. In last 7 years a network of trans-Alpine area's authorities was created between Italy and Switzerland to define an adaptive strategy on climate change effects on natural enviroment based on non structural remedies. The Interreg IT - CH STRADA Project (STRategie di ADAttamento al cambiamento climatico) was born to join all the non structural remedies to climate change effects caused by snow and avalanches, on mountain sources, extreme hydrological events and to manage all transnational hydrological resources, involving all stakeholders from Italy and Switzerland. The STRADA project involved all civil protection authorities and all research centers in charge of snow, hydrology end civil protection. The Snow - meteorological center of the Regional Agency for Environment Protection (CNM of ARPA Lombardia) and the Civil Protection of Lombardy Region created a research team to develop tools for avalanche prediction and to observe and predict snow cover on Alpine area. With this aim a lot of aerial photo using Drone as been performed in unusual landscape. Results of all surveys were really interesting on a

  13. NOAA ESRI Grid - depth uncertainty predictions in New York offshore planning area from Biogeography Branch bathymetry model

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset represents depth uncertainty predictions from a bathymetric model developed for the New York offshore spatial planning area. The model also includes...

  14. NOAA TIFF Image - 4m Bathymetric Depth Range of Red Snapper Research Areas in the South Atlantic Bight, 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains unified Bathymetric Depth Range GeoTiffs with 4x4 meter cell resolution describing the topography of 15 areas along the shelf edge off the...

  15. NOAA TIFF Image - 4m Bathymetric Mean Depth of Red Snapper Research Areas in the South Atlantic Bight, 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains unified Bathymetric Mean Depth GeoTiffs with 4x4 meter cell resolution describing the topography of 15 areas along the shelf edge off the South...

  16. NOAA TIFF Image - 4m Bathymetric Depth of Red Snapper Research Areas in the South Atlantic Bight, 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset contains unified Bathymetric Depth GeoTiffs with 4x4 meter cell resolution describing the topography of 15 areas along the shelf edge off the South...

  17. Depth-area-duration characteristics of storm rainfall in Texas using Multi-Sensor Precipitation Estimates

    Science.gov (United States)

    McEnery, J. A.; Jitkajornwanich, K.

    2012-12-01

    This presentation will describe the methodology and overall system development by which a benchmark dataset of precipitation information has been used to characterize the depth-area-duration relations in heavy rain storms occurring over regions of Texas. Over the past two years project investigators along with the National Weather Service (NWS) West Gulf River Forecast Center (WGRFC) have developed and operated a gateway data system to ingest, store, and disseminate NWS multi-sensor precipitation estimates (MPE). As a pilot project of the Integrated Water Resources Science and Services (IWRSS) initiative, this testbed uses a Standard Query Language (SQL) server to maintain a full archive of current and historic MPE values within the WGRFC service area. These time series values are made available for public access as web services in the standard WaterML format. Having this volume of information maintained in a comprehensive database now allows the use of relational analysis capabilities within SQL to leverage these multi-sensor precipitation values and produce a valuable derivative product. The area of focus for this study is North Texas and will utilize values that originated from the West Gulf River Forecast Center (WGRFC); one of three River Forecast Centers currently represented in the holdings of this data system. Over the past two decades, NEXRAD radar has dramatically improved the ability to record rainfall. The resulting hourly MPE values, distributed over an approximate 4 km by 4 km grid, are considered by the NWS to be the "best estimate" of rainfall. The data server provides an accepted standard interface for internet access to the largest time-series dataset of NEXRAD based MPE values ever assembled. An automated script has been written to search and extract storms over the 18 year period of record from the contents of this massive historical precipitation database. Not only can it extract site-specific storms, but also duration-specific storms and

  18. 5 CFR Appendix D to Subpart B of... - Nonappropriated Fund Wage and Survey Areas

    Science.gov (United States)

    2010-01-01

    ... CIVIL SERVICE REGULATIONS PREVAILING RATE SYSTEMS Prevailing Rate Determinations Pt. 532, Subpt. B, App...: Monroe Ocean Survey Area New Jersey: Ocean Area of Application. Survey area. New Mexico Bernalillo Survey Area New Mexico: Bernalillo Area of Application. Survey area plus: New Mexico: McKinley Curry Survey...

  19. Linking snow depth to avalanche release area size: measurements from the Vallée de la Sionne field site

    Science.gov (United States)

    Veitinger, Jochen; Sovilla, Betty

    2016-08-01

    One of the major challenges in avalanche hazard assessment is the correct estimation of avalanche release area size, which is of crucial importance to evaluate the potential danger that avalanches pose to roads, railways or infrastructure. Terrain analysis plays an important role in assessing the potential size of avalanche releases areas and is commonly based on digital terrain models (DTMs) of a snow-free summer terrain. However, a snow-covered winter terrain can significantly differ from its underlying, snow-free terrain. This may lead to different, and/or potentially larger release areas. To investigate this hypothesis, the relation between avalanche release area size, snow depth and surface roughness was investigated using avalanche observations of artificially triggered slab avalanches over a period of 15 years in a high-alpine field site. High-resolution, continuous snow depth measurements at times of avalanche release showed a decrease of mean surface roughness with increasing release area size, both for the bed surface and the snow surface before avalanche release. Further, surface roughness patterns in snow-covered winter terrain appeared to be well suited to demarcate release areas, suggesting an increase of potential release area size with greater snow depth. In this context, snow depth around terrain features that serve as potential delineation borders, such as ridges or trenches, appeared to be particularly relevant for release area size. Furthermore, snow depth measured at a nearby weather station was, to a considerable extent, related to potential release area size, as it was often representative of snow depth around those critical features where snow can accumulate over a long period before becoming susceptible to avalanche release. Snow depth - due to its link to surface roughness - could therefore serve as a highly useful variable with regard to potential release area definition for varying snow cover scenarios, as, for example, the avalanche

  20. Retrieval of Aerosol Optical Depth over Arid Areas from MODIS Data

    Directory of Open Access Journals (Sweden)

    Xin-peng Tian

    2016-10-01

    Full Text Available Moderate Resolution Imaging Spectroradiometer (MODIS data have been widely applied for the remote sensing of aerosol optical depth (AOD because the MODIS sensor features a short revisit period and a moderate spatial resolution. The Dense Dark Vegetation (DDV method is the most popular retrieval method. However, the DDV method can only be used to retrieve the AOD with high precision when the surface reflectance in the visible spectrum is low, such as over dense vegetation or water. To obtain precise AOD values in areas with higher reflectance, such as arid areas, Land Surface Reflectance (LSR must be estimated accurately. This paper proposes a method of estimating LSR for AOD retrieval over arid areas from long-term series of MODIS images. According to the atmospheric parameters (AOD and water vapor, the clearest image without clouds was selected from the long-term series of continuous MODIS images. Atmospheric correction was conducted based on similar ground-measured atmospheric parameters and was used to estimate the LSR and retrieve the AOD at adjacent times. To validate this method, aerosol inversion experiments were performed in northern Xinjiang, in which the inverted AOD was compared to ground-measured AOD and MODIS aerosol products (MOD04. The AOD retrieved using the new algorithm was highly consistent with the AOD derived from ground-based measurements, with a correlation coefficient of 0.84. Additionally, 82.22% of the points fell within the expected error defined by NASA. The precision of the retrieved AOD data was better than that of MOD04 AOD products over arid areas.

  1. Helicopter electromagnetic survey of the Model Land Area, Southeastern Miami-Dade County, Florida

    Science.gov (United States)

    Fitterman, David V.; Deszcz-Pan, Maria; Prinos, Scott T.

    2012-01-01

    This report describes a helicopter electromagnetic survey flown over the Model Land Area in southeastern Miami-Dade County, Florida, to map saltwater intrusion in the Biscayne aquifer. The survey, which is located south and east of Florida City, Florida, covers an area of 115 square kilometers with a flight-line spacing of 400 meters. A five-frequency, horizontal, coplanar bird with frequencies ranging from 400 to 100,000 Hertz was used. The data were interpreted using differential resistivity analysis and inversion to produce cross sections and resistivity depth-slice maps. The depth of investigation is as deep as 100 meters in freshwater-saturated portions of the Biscayne aquifer and the depth diminishes to about 50 meters in areas that are intruded by saltwater. The results compare favorably with ground-based, time-domain electromagnetic soundings and induction logs from observation wells in the area. The base of a high-resistivity, freshwater-saturated zone mapped in the northern 2 kilometers of the survey area corresponds quite well with the base of the surficial aquifer that has been determined by drilling. In general, saltwater in the survey area extends 9 to 12 kilometers inland from the coast; however, there is a long nose of saltwater centered along the Card Sound Road Canal that extends 15 kilometers inland. The cause of this preferential intrusion is likely due to uncontrolled surface flow along the canal and subsequent leakage of saltwater into the aquifer. Saltwater also extends farther inland in the area between U.S. Highway 1 and Card Sound Road than it does to the west of this area. Until 1944, a railroad grade occupied the current location of U.S. Highway 1. Borrow ditches associated with the railroad grade connected to Barnes Sound and allowed saltwater to flow during droughts and storm surges to within a few kilometers of Florida City. Relicts of this saltwater that settled to the bottom of the Biscayne aquifer can be seen in the helicopter

  2. Precipitation Depth-Duration-Frequency Analysis for the Nevada National Security Site and Surrounding Areas

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Li [Desert Research Inst. (DRI), Las Vegas, NV (United States). Division of Hydrologic Sciences; Miller, Julianne J. [Desert Research Inst. (DRI), Las Vegas, NV (United States). Division of Hydrologic Sciences

    2016-08-01

    Accurate precipitation frequency data are important for Environmental Management Soils Activities on the Nevada National Security Site (NNSS). These data are important for environmental assessments performed for regulatory closure of Soils Corrective Action Unit (CAU) Sites, as well as engineering mitigation designs and post-closure monitoring strategies to assess and minimize potential contaminant migration from Soils CAU Sites. Although the National Oceanic and Atmospheric Administration (NOAA) Atlas 14 (Bonnin et al., 2011) provides precipitation frequency data for the NNSS area, the NNSS-specific observed precipitation data were not consistent with the NOAA Atlas 14 predicted data. This is primarily due to the NOAA Atlas 14 products being produced from analyses without including the approximately 30 NNSS precipitation gage records, several of which approach or exceed 50 year of record. Therefore, a study of precipitation frequency that incorporated the NNSS precipitation gage records into the NOAA Atlas 14 dataset, was performed specifically for the NNSS to derive more accurate site-specific precipitation data products. Precipitation frequency information, such as the depth-duration-frequency (DDF) relationships, are required to generate synthetic standard design storm hydrographs and assess actual precipitation events. In this study, the actual long-term NNSS precipitation gage records, some of which are the longest gage records in southern and central Nevada, were analyzed to allow for more accurate precipitation DDF estimates to be developed for the NNSS. Gridded maps of precipitation frequency for the NNSS and surrounding areas were then produced.

  3. Controls on and consequences of specific leaf area variation with permafrost depth in a boreal forest

    Science.gov (United States)

    Anderson, C.; Bond-Lamberty, B. P.; Huang, M.; Xu, Y.; Stegen, J.

    2016-12-01

    Specific leaf area (SLA, leaf area per unit dry mass) is an index of plant carbon captured by photosynthesis and an important input into many terrestrial process models. However, the controls on and consequences of SLA variation are poorly understood, especially in high latitude, climatically-sensitive permafrost regions. To address this, we measured SLA along with soil and topographic properties across a boreal forest permafrost transition, in which forest composition changed as permafrost deepened from 54 to >150 cm. Using replicated transects, we characterized both linear and threshold relationships between topographic and edaphic variables and SLA, and evaluated and expanded upon a conceptual model of environmental factors and vegetation patterns. We found that the depth of the soil active layer above permafrost (ALD) was highly correlated with SLA, for both coniferous and deciduous boreal tree species. Across a permafrost transition, intraspecific SLA variation was associated with a fivefold increase in NPP, suggesting that changes in ALD due to permafrost thaw could heavily influence ecosystem carbon accumulation. High levels of intraspecific trait variation suggest the need for flexible trait representation across plant functional types in Earth System Models. We thus incorporated our empirical environment-SLA relationships into spatially explicit spin-ups of the Community Land Model (CLM v4.5) in an effort to constrain model uncertainty. Dynamic representation of plant traits can improve our representation of intraspecific trait variability and its functional relationship with environmental gradients in models predicting ecosystem responses to ongoing climate change.

  4. The First Automatic Survey of Impact Craters on Mars: Global Maps of Depth/Diameter Ratio

    Science.gov (United States)

    Stepinski, T. F.; Urbach, E. R.

    2009-03-01

    The catalog of 75,919 craters on Mars is compiled by a computer algorithm. Using crater depths listed by this catalog, global maps of depth/diameter ratio are created. Such maps indicate existence of cryosphere at depths that varies with latitude.

  5. Commentary: legal minimum tread depth for passenger car tires in the U.S.A.--a survey.

    Science.gov (United States)

    Blythe, William; Seguin, Debra E

    2006-06-01

    Available tire traction is a significant highway safety issue, particularly on wet roads. Tire-roadway friction on dry, clean roads is essentially independent of tread depth, and depends primarily on roadway surface texture. However, tire-wet-roadway friction, both for longitudinal braking and lateral cornering forces, depends on several variables, most importantly on water depth, speed and tire tread depth, and the roadway surface texture. The car owner-operator has control over speed and tire condition, but not on water depth or road surface texture. Minimum tire tread depth is legislated throughout most of the United States and Europe. Speed reduction for wet road conditions is not.A survey of state requirements for legal minimum tread depth for passenger vehicle tires in the United States is presented. Most states require a minimum of 2/32 of an inch (approximately 1.6 mm) of tread, but two require less, some have no requirements, and some defer to the federal criterion for commercial vehicle safety inspections. The requirement of 2/32 of an inch is consistent with the height of the tread-wear bars built in to passenger car tires sold in the United States, but the rationale for that requirement, or other existing requirements, is not clear. Recent research indicates that a minimum tread depth of 2/32 of an inch does not prevent significant loss of friction at highway speeds, even for minimally wet roadways. The research suggests that tires with less than 4/32 of an inch tread depth may lose approximately 50 percent of available friction in those circumstances, even before hydroplaning occurs. It is concluded that the present requirements for minimum passenger car tire tread depth are not based upon rational safety considerations, and that an increase in the minimum tread depth requirements would have a beneficial effect on highway safety.

  6. Final Report - Hydraulic Conductivity with Depth for Underground Test Area (UGTA) Wells

    Energy Technology Data Exchange (ETDEWEB)

    P. Oberlander; D. McGraw; C. Russell

    2007-10-31

    Hydraulic conductivity with depth has been calculated for Underground Test Area (UGTA) wells in volcanic tuff and carbonate rock. The following wells in volcanic tuff are evaluated: ER-EC-1, ER-EC-2a, ER-EC-4, ER-EC-5, ER-5-4#2, ER-EC-6, ER-EC-7, and ER-EC-8. The following wells in carbonate rock are evaluated: ER-7-1, ER-6-1, ER-6-1#2, and ER-12-3. There are a sufficient number of wells in volcanic tuff and carbonate rock to associate the conductivity values with the specific hydrogeologic characteristics such as the stratigraphic unit, hydrostratigraphic unit, hydrogeologic unit, lithologic modifier, and alteration modifier used to describe the hydrogeologic setting. Associating hydraulic conductivity with hydrogeologic characteristics allows an evaluation of the data range and the statistical distribution of values. These results are relevant to how these units are considered in conceptual models and represented in groundwater models. The wells in volcanic tuff illustrate a wide range of data values and data distributions when associated with specific hydrogeologic characteristics. Hydraulic conductivity data within a hydrogeologic characteristic can display normal distributions, lognormal distributions, semi-uniform distribution, or no identifiable distribution. There can be multiple types of distributions within a hydrogeologic characteristic such as a single stratigraphic unit. This finding has implications for assigning summary hydrogeologic characteristics to hydrostratigraphic and hydrogeologic units. The results presented herein are specific to the hydrogeologic characteristic and to the wells used to describe hydraulic conductivity. The wells in carbonate rock are associated with a fewer number of hydrogeologic characteristics. That is, UGTA wells constructed in carbonate rock have tended to be in similar hydrogeologic materials, and show a wide range in hydraulic conductivity values and data distributions. Associations of hydraulic conductivity and

  7. Benthic Photo Survey: Software for Geotagging, Depth-tagging, and Classifying Photos from Survey Data and Producing Shapefiles for Habitat Mapping in GIS

    Directory of Open Access Journals (Sweden)

    Jared Kibele

    2016-03-01

    Full Text Available Photo survey techniques are common for resource management, ecological research, and ground truthing for remote sensing but current data processing methods are cumbersome and inefficient. The Benthic Photo Survey (BPS software described here was created to simplify the data processing and management tasks associated with photo surveys of underwater habitats. BPS is free and open source software written in Python with a QT graphical user interface. BPS takes a GPS log and jpeg images acquired by a diver or drop camera and assigns the GPS position to each photo based on time-stamps (i.e. geotagging. Depth and temperature can be assigned in a similar fashion (i.e. depth-tagging using log files from an inexpensive consumer grade depth / temperature logger that can be attached to the camera. BPS provides the user with a simple interface to assign quantitative habitat and substrate classifications to each photo. Location, depth, temperature, habitat, and substrate data are all stored with the jpeg metadata in Exchangeable image file format (Exif. BPS can then export all of these data in a spatially explicit point shapefile format for use in GIS. BPS greatly reduces the time and skill required to turn photos into usable data thereby making photo survey methods more efficient and cost effective. BPS can also be used, as is, for other photo sampling techniques in terrestrial and aquatic environments and the open source code base offers numerous opportunities for expansion and customization.

  8. Basic survey on coal resources in Ariake Sea area

    Energy Technology Data Exchange (ETDEWEB)

    Masui, Mitsuharu

    1984-09-21

    This is a contracted NEDO project. Potential existance of coal resources and geological conditions were studied and the following information was acquired. Area examined is the Ariake Sea area with breadth of 12 km (east to west) and 17 km (north to south) between the Miike Coal Mines and the Karatsu Coal Mines. Investigation was made by a marine drilling (depth being 864.8 m and 865.2 m below the sea bottom) and by a marine seismic method. Existence of coal bed groups comparable with the coal bed in the trial section of the Miike Coal Mines was confirmed by the two-drill trial. This indicates that the west end line of the Miike Coal Mines lies further west of the line connecting the Chikugo barrier and the Minenosu barrier. Investigation by a marine earthquake indicates that the upper surface of the coal beds in the investigated area is distributed in the depth of 400 - 1,100 m below the sea level, and that the basic surface is situated at the depth of 700 - 1,400 m below the sea level. This suggests the possibility that the coal beds of the Miike Coal Mines are distributed to reach the western part of the Ariake Sea. (9 figs, 3 tabs)

  9. 7 CFR 1737.31 - Area Coverage Survey (ACS).

    Science.gov (United States)

    2010-01-01

    ... Design. (Approved by the Office of Management and Budget under control number 0572-0079) ... Survey (ACS) is a market forecast of service requirements of subscribers in a proposed service area. (b... identification of future establishments are also recorded on the maps. (2) A forecast of the number of...

  10. CALIFA, the Calar alto legacy integral field area survey

    DEFF Research Database (Denmark)

    Husemann, B.; Jahnke, K.; Sánchez, S. F.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005 < z < 0.03) galaxies, obtained with the integral-field spectrograph PMAS/PPak mounted on th...

  11. Delineating Groundwater Contaminant Plums Using Self-Potential Surveying Method In Perth Area Australia

    Directory of Open Access Journals (Sweden)

    Okan Evans Onojasun

    2015-08-01

    Full Text Available Abstract Self-potential survey was carried out in Kalamunda area of Perth Western Australia with aim of delineating groundwater contaminant plums leakages. Two self-potential electrode configuration the roving dipole where one electrode is left in a base position while the other electrode scouts each survey position and the leapfrogging approach were potential differences are measured between consecutive sample stations along the line were employed to collect data. Results obtained from the experiments shows numerous small circular potential anomalies which could be interpreted as sources of leakages due to geothermal activity but the only trends that could be correlated across all surveys were the linear E-W trend which shows the location and the direction of the pipe underground to a depth of perhaps 2m. Other anomalies on the map show variations which could be as a result of trees interference on the observed data.

  12. Wetland survey of selected areas in the K-24 Site Area of responsibility

    Energy Technology Data Exchange (ETDEWEB)

    Rosensteel, B.A.; Awl, D.J. [JAYCOR, Environmental Division, Oak Ridge, TN (United States)

    1995-07-01

    In accordance with DOE Regulations for Compliance with Floodplain/Wetlands Environmental Review Requirements, wetland surveys were conducted in selected areas within the K-25 Area of Responsibility during the summer of 1994. These areas are Mitchell Branch, Poplar Creek, the K-770 OU, Duct Island Peninsula, the Powerhouse area, and the K-25 South Corner. Previously surveyed areas included in this report are the main plant area of the K-25 Site, the K-901 OU, the AVLIS site, and the K-25 South Site. Wetland determinations were based on the USACE methodology. Forty-four separate wetland areas, ranging in size from 0.13 to 4.23 ha, were identified. Wetlands were identified in all of the areas surveyed with the exception of the interior of the Duct Island Peninsula and the main plant area of the K-25 Site. Wetlands perform functions such as floodflow alteration, sediment stabilization, sediment and toxicant retention, nutrient transformation, production export, and support of aquatic species and wildlife diversity and abundance. The forested, scrub-shrub, and emergent wetlands identified in the K-25 area perform some or all of these functions to varying degrees.

  13. Expected z>5 QSO number counts in large area deep near-infrared surveys

    CERN Document Server

    Fontanot, Fabio; Jester, Sebastian

    2007-01-01

    The QSO luminosity function at z>5 provides strong constraints on models of joint evolution of QSO and their hosts. However, these observations are challenging because the low space densities of these objects necessitate surveying of large areas, in order to obtain statistically meaningful samples, while at the same time cosmological redshifting and dimming means that rather deep Near Infrared (NIR) imaging must be carried out. Several upcoming and proposed facilities with wide-field NIR imaging capabilities will open up this new region of parameter space. In this paper we present predictions for the expected number counts of z>5 QSOs, based on simple empirical models of QSO evolution, as a function of redshift, depth and surveyed area. We compute the evolution of observed-frame QSO magnitudes and colors in a representative photometric system covering the wavelength range 550nm < \\lambda < 1800nm, and combine this information with different estimates for the evolution of the QSO luminosity function. We ...

  14. Mapping snow depth in complex alpine terrain with close range aerial imagery - estimating the spatial uncertainties of repeat autonomous aerial surveys over an active rock glacier

    Science.gov (United States)

    Goetz, Jason; Marcer, Marco; Bodin, Xavier; Brenning, Alexander

    2017-04-01

    Snow depth mapping in open areas using close range aerial imagery is just one of the many cases where developments in structure-from-motion and multi-view-stereo (SfM-MVS) 3D reconstruction techniques have been applied for geosciences - and with good reason. Our ability to increase the spatial resolution and frequency of observations may allow us to improve our understanding of how snow depth distribution varies through space and time. However, to ensure accurate snow depth observations from close range sensing we must adequately characterize the uncertainty related to our measurement techniques. In this study, we explore the spatial uncertainties of snow elevation models for estimation of snow depth in a complex alpine terrain from close range aerial imagery. We accomplish this by conducting repeat autonomous aerial surveys over a snow-covered active-rock glacier located in the French Alps. The imagery obtained from each flight of an unmanned aerial vehicle (UAV) is used to create an individual digital elevation model (DEM) of the snow surface. As result, we obtain multiple DEMs of the snow surface for the same site. These DEMs are obtained from processing the imagery with the photogrammetry software Agisoft Photoscan. The elevation models are also georeferenced within Photoscan using the geotagged imagery from an onboard GNSS in combination with ground targets placed around the rock glacier, which have been surveyed with highly accurate RTK-GNSS equipment. The random error associated with multi-temporal DEMs of the snow surface is estimated from the repeat aerial survey data. The multiple flights are designed to follow the same flight path and altitude above the ground to simulate the optimal conditions of repeat survey of the site, and thus try to estimate the maximum precision associated with our snow-elevation measurement technique. The bias of the DEMs is assessed with RTK-GNSS survey observations of the snow surface elevation of the area on and surrounding

  15. A Simple Depth-of-Search Metric for Exoplanet Imaging Surveys

    Science.gov (United States)

    Garrett, Daniel; Savransky, Dmitry; Macintosh, Bruce

    2017-08-01

    We present a procedure for calculating expected exoplanet imaging yields that explicitly separates the effects of instrument performance from assumptions of planet distributions. This “depth-of-search” approach allows for fast recalculation of yield values for variations in instrument parameters. We also describe a new target star selection metric with no dependence on an assumed planet population that can be used as a proxy for single-visit completeness. This approach allows for the recovery of the total mission completeness via convolution of the depth-of-search grid with an equivalent grid of assumed occurrence rates and summation over the part of the grid representing the population of interest (e.g., Earth-like planets on habitable zone orbits, etc.). In this work, we discuss the practical details of calculating the depth-of-search and present results of such calculations for one design iteration of the WFIRST coronagraphs.

  16. Survey monitoring of environmental radioactivity in Daejeon area

    Energy Technology Data Exchange (ETDEWEB)

    Jun, Jae Shik; Noh, Hyung Ah [Daejon Radiation Monitoring Station, Daejeon (Korea, Republic of)

    2002-12-15

    Systematic understanding of the distribution of environmental radioactivity and radiation level in Daejeon, including Chungchung area, in normal circumstance, and rapid detection of unusual variation of the radiation level in emergency situation thereby ensure public safety are the objectives of this project to be carried out. This report summarizes and interprets environmental radiation/radioactivity monitoring data obtained at Daejeon Radiation Monitoring Station in 2002. In conclusion, the natural environmental radiation level in Daejeon area has been preserved as usual and no significant artificial enhancement in environmental radioactivity was observed during the course of this survey and monitoring period.

  17. Survey monitoring of environmental radioactivity in Daejeon area

    Energy Technology Data Exchange (ETDEWEB)

    Jun, Jae Shik; Noh, Hyung Ah [Daejon Radiation Monitoring Station, Daejeon (Korea, Republic of)

    2003-12-15

    Systematic understanding of the distribution of environmental radioactivity and radiation level in Daejeon, including Chungchung area, in normal circumstance, and rapid detection of unusual variation of the radiation level in emergency situation thereby ensure public safety are the objectives of this project to be carried out. This report summarizes and interprets environmental radiation/radioactivity monitoring data obtained at Daejeon Radiation Monitoring Station in 2002. In conclusion, the natural environmental radiation level in Daejeon area has been preserved as usual and no significant artificial enhancement in environmental radioactivity was observed during the course of this survey and monitoring period.

  18. Curie point depth from spectral analysis of aeromagnetic data from Cerro Prieto geothermal area, Baja California, México

    Science.gov (United States)

    Espinosa-Cardeña, J. M.; Campos-Enriquez, J. O.

    2008-10-01

    Using aeromagnetic data acquired in the area from the Cerro Prieto geothermal field, we estimated the depth to the Curie point isotherm, interpreted as the base of the magnetic sources, following statistical spectral-based techniques. According to our results the Curie point isotherm is located at a depths ranging from 14 to 17 km. Our result is somewhat deeper than that obtained previously based only in 2-D and 3-D forward modeling of previous low-quality data. However, our results are supported by independent information comprising geothermal gradients, seismicity distribution in the crust, and gravity determined crustal thickness. Our results imply a high thermal gradient (ranging between 33 and 38 °C/km) and high heat flow (of about 100 mW/m 2) for the study area. The thermal regime for the area is inferred to be similar to that from the Salton trough.

  19. Integrated geophysical surveys on railroads in permafrost areas

    Institute of Scientific and Technical Information of China (English)

    A Ivanov; S Klepikova; M Shirobokov; A Urusova; A Savin

    2013-01-01

    The zones of thawed ground in the permafrost area are most dangerous from engineer-geologist effect point of view. Detection of such zones, as making forecast of their movement is the main task of engineer-geologist survey been held in railway industry. This paper presents general issues concerning railway construction and operation in permafrost areas. Comprehensive geophysical methods to monitor the development of thawed soils are considered in detail. The main physical parameters which help define permafrost and thawed soil patches are described. Author of current paper pointed out main factors, allowing predicting potential areas of development of thawed grounds. They offered set non-destructive methods:GPR investigations, seismic survey and elec-tric exploration. Whole sets of geophysical data:electric resistivity, velocity of S-wave and P-wave (and their correlation), allow us with high confidence specify characteristics and state of soil either under the line of road, or near it. At the same time the meth-od allows to predict direction of further development of thawed ground area.

  20. 75 FR 49351 - Prevailing Rate Systems; Nonappropriated Fund Wage and Survey Areas

    Science.gov (United States)

    2010-08-13

    ... Douglas Multnomah Tillamook Washington: Clark Grays Harbor Snohomish Survey Area Washington: Snohomish... of county units or independent cities. Each wage area definition consists of: (1) Wage area title. Wage areas usually carry the title of the county or counties surveyed. (2) Survey area...

  1. Cohort profile: the Boston Area Community Health (BACH) survey.

    Science.gov (United States)

    Piccolo, Rebecca S; Araujo, Andre B; Pearce, Neil; McKinlay, John B

    2014-02-01

    The Boston Area Community Health (BACH) Survey is a community-based, random sample, epidemiologic cohort of n = 5502 Boston (MA) residents. The baseline BACH Survey (2002-05) was designed to explore the mechanisms conferring increased health risks on minority populations with a particular focus on urologic signs/symptoms and type 2 diabetes. To this end, the cohort was designed to include adequate numbers of US racial/ethnic minorities (Black, Hispanic, White), both men and women, across a broad age of distribution. Follow-up surveys were conducted ∼5 (BACH II, 2008) and 7 (BACH III, 2010) years later, which allows for both within- and between-person comparisons over time. The BACH Survey's measures were designed to cover the following seven broad categories: socio-demographics, health care access/utilization, lifestyles, psychosocial factors, health status, physical measures and biochemical parameters. The breadth of measures has allowed BACH researchers to identify disparities and quantify contributions to social disparities in a number of health conditions including urologic conditions (e.g. nocturia, lower urinary tract symptoms, prostatitis), type 2 diabetes, obesity, bone mineral content and density, and physical function. BACH I data are available through the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Central Repositories (www.niddkrepository.org). Further inquiries can be made through the New England Research Institutes Inc. website (www.neriscience.com/epidemiology).

  2. Beyond Logs and Surveys: In-Depth Measures of People's Web Use Skills.

    Science.gov (United States)

    Hargittai, Eszter

    2002-01-01

    Examines how people find information online in the context of their other media use and general Internet use patterns, and uses information about demographic background and social support networks. Describes the methodology, and suggests a mix of survey instruments and in-person observations can yield the type of data necessary to understand the…

  3. Regional Collaboration Among Urban Area Security Initiative Regions: Results of the Johns Hopkins Urban Area Survey

    Science.gov (United States)

    Bowman, Calvin; Barnett, Daniel J.; Resnick, Beth A.; Frattaroli, Shannon; Rutkow, Lainie

    2014-01-01

    Regional collaboration has been identified as a potential facilitator of public health preparedness efforts. The Urban Area Security Initiative (UASI) grant program, administered by the Federal Emergency Management Agency (FEMA) since 2003, has provided 64 high-risk metropolitan areas funding to enhance their regional preparedness capabilities. This study describes informal and formal regional collaboration infrastructure, as well as regional collaboration–related activities and assessment methods, in FFY2010 UASI regions. A cross-sectional online survey was administered via Survey Monkey from September through December 2013. Points of contact from FFY2010 funded UASI metropolitan areas completed the survey, with a response rate of 77.8% (n=49). Summary statistics were calculated to describe the current informal and formal regional collaboration infrastructure. Additionally, the cross-sectional survey collected rates of agreement with 8 collaborative preparedness statements at 3 time points. The survey found that UASI regions are engaging in collaborative activities and investments to build capabilities, with most collaboration occurring in the prevention, protection, and response mission areas. Collaborative relationships in preparedness among emergency managers and municipal chief executive officers improved during the FFY2010 UASI performance period compared to the pre-UASI award period, with lasting effects. The majority of UASI regions reported conducting independent assessments of capabilities and their measurement at the UASI region level. Urban areas that received a FFY2010 UASI grant award are engaging in collaborative activities and have established interjurisdictional relationships in preparedness. The use of grant funds to encourage collaboration in preparedness has the potential to leverage limited resources and promote informed investments. PMID:25398073

  4. Confirming Ground Geophysical Survey for Mineralization in Al Bayda Area, Yemen

    Institute of Scientific and Technical Information of China (English)

    Faisal S. Al-Huzaim

    2003-01-01

    The Jabal Mabal-prospect of Al Bayda area is covered by meta-volcano sedimentary rocks. The importance of the study area comes from previous studies, which proved that the area has mineralization zones at the periphery of Jabal Al-Mabal. These mineralized zones lie along northwest-southeast shear zones, which occur inside the meta-volcanic rocks. The previous studies concluded that the mineralization was mostly associated with sulphides, especially at the reduction zones. These sulphides give a good response to electrical or electromagnetic techniques. The present study uses electrically induced polarization and Genie electromagnetic surveys to explore the extension of the mineralization zones at the subsurface. The self-potential (SP) technique shows numerous of mineralized zones. Most of these zones are distributed in the southern area along the contact between the quartz and gabbro. The induced polarization (IP) method has been applied on the selected profiles to delineate the subsurface contact between calcite, gabbro and quartz in Al-Jarra Valley and to calculate the shape and depth of the mineralization zones in the subsurface along these profiles. The Genie electromagnetic survey, which has been applied on selected profiles, delineated some weak mineralization occurrences corresponding to the shear zones. The integration of the results obtained using these three techniques, in addition to the different ground geophysical methods previously used, makes it possible to determine the most appropriate zones for development of exploration at the area of investigation.

  5. Borehole survey of uranium deposit in Yongyuri Miwon area (1979)

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Dai Oap [Korea Inst. of Geology Mining and Materials, Taejon (Korea, Republic of)

    1995-12-01

    The survey on the nuclear raw mineral (uranium) deposits had been carried out for a long time from early 1960`s to late 1980`s by the Geological and Mineral Institute of Energy and Resources. Unpublished data of the uranium ore deposit of Yongyuri Miwon area is published on this paper. Geology on the Ogcheon System have been controversial by many geologists, therefore we have reviewed on the geology and stratigraphy. Particularly, we have interpreted the host root rock on the magnetite bearing banded gneiss, which is named so called Kyemeongsan Formation. (author). 5 maps.

  6. Energy technology monitoring - New areas and in-depth investigations; Technologie-Monitoring - Weitere Bereiche - Vertiefungen

    Energy Technology Data Exchange (ETDEWEB)

    Rigassi, R.; Eicher, H. [Dr. Eicher und Pauli AG, Liestal (Switzerland); Steiner, P.; Ott, W. [Econcept AG, Zuerich (Switzerland)

    2005-07-01

    This comprehensive report for the Swiss Federal Office of Energy (SFOE) presents the results of a project that examined long-term trends in the energy technology area in order to provide information that is to form the basis for political action and the distribution of energy research funding in Switzerland. Energy-technology areas examined include variable-speed electrical drives, ventilation systems for low-energy-consumption buildings, membrane technology and the use of plastics in lightweight automobiles. Examples are quoted and the current state of the appropriate technologies and market aspects are examined. Also, the potential and future developments in the areas listed are looked at. The consequences for energy policy and future developments in the technology-monitoring area are considered.

  7. Environmentally Sensitive Areas Surveys Program threatened and endangered species survey: Progress report. Environmental Restoration Program

    Energy Technology Data Exchange (ETDEWEB)

    King, A.L.; Awl, D.J.; Gabrielsen, C.A.

    1994-09-01

    The Endangered Species Act (originally passed in 1973) is a Federal statute that protects both animal and plant species. The Endangered Species Act identifies species which are, without careful management, in danger of becoming extinct and species that are considered threatened. Along with the designation of threatened or endangered, the Endangered Species Act provides for the identification of appropriate habitat for these species. Since 1993, the United States Department of Energy`s (DOE) Environmental Restoration (ER) Program has supported a program to survey the Oak Ridge Reservation (ORR) for threatened and endangered species. The Environmentally Sensitive Areas Surveys Program initiated vascular plant surveys during fiscal year 1993 and vertebrate animal surveys during fiscal year 1994 to determine the baseline condition of threatened and endangered species on the ORR at the present time. Data collected during these surveys are currently aiding Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Remedial Investigations on the ORR. They also provide data for ER and Waste Management decision documents, ensure that decisions have technical and legal defensibility, provide a baseline for ensuring compliance with principal legal requirements and will increase public confidence in DOE`s adherence to all related environmental resources rules, laws, regulations, and instructions. This report discusses the progress to date of the threatened and endangered species surveys of the ORR.

  8. GPR Surveying in the kernel area of Grove Mountains, Antarctica

    Institute of Scientific and Technical Information of China (English)

    WANG Zemin; TAN Zhi; AI Songtao; LIU Haiyan; CHE Guowei

    2014-01-01

    The Grove Mountains, located between the Zhongshan Station and Dome A, are a very important area in inland Antarctic research. China has organized ifve investigations of the Grove Mountains, encompassing the geological structure, ancient climate, meteorites, ice-movement monitoring, basic mapping, meteorological observations, and other multi-disciplinary observational studies. During the 26th Chinese National Antarctic Research Expedition in 2010, the Grove Mountains investigation team applied specialized ground-penetrating radar (GPR) to survey subglacial topography in the eastern kernel area of the Grove Mountains. In this paper, we processed GPS and GPR data gathered in the ifeld and drew, for the ifrst time, two subglacial topographic maps of the Grove Mountains kernel area using professional graphics software. The preliminary results reveal the mystery of the nunatak landform of this area, give an exploratory sense of the real bedrock landforms, and indicate a possible sedimentary basin under the Pliocene epoch fossil ice in the Grove Mountains area. Additionally, it has been proven from cross-sectional analysis between Mount Harding and the Zakharoff ridge that the box-valley shape between two nunataks has already matured.

  9. Field Survey of the 2015 Chile Tsunami with Emphasis on Coastal Wetland and Conservation Areas

    Science.gov (United States)

    Contreras-López, Manuel; Winckler, Patricio; Sepúlveda, Ignacio; Andaur-Álvarez, Adolfo; Cortés-Molina, Fernanda; Guerrero, Camila J.; Mizobe, Cyntia E.; Igualt, Felipe; Breuer, Wolfgang; Beyá, José F.; Vergara, Hernán; Figueroa-Sterquel, Rodrigo

    2016-02-01

    The September 16th 2015 Illapel M8.3 earthquake, Chile, generated a tsunami that affected a sparsely populated region, causing 15 casualties and destroying 1069 houses (USGS 2015). A maximum surface elevation of +4.5 m was observed in Coquimbo's tide gauge while in other sites of the tide network, the tsunami did not exceed +2.0 m. A post-tsunami survey team comprised by local researchers was deployed from September 17th to November 14th 2015. The survey covered approximately 80 sites along 500 km of the primary impact zone, from the northernmost site where damage was reported, Bahía Carrizalillo (29.11°S; 71.46°W), southward to El Yali National Reserve (33.75°S; 71.73°W) beyond which no tsunami damage occurred. The results of the survey in coastal towns with evident damage and isolated sites where the tsunami signature remained almost intact are summarized in this paper. A large amount of quantitative material is presented; including (1) inundation lines in five coastal sites, (2) 157 profiles including wave runup and flow depths and (3) 47 interviews to eyewitness, generally 2-3 per site. About two-thirds of the data were collected in isolated areas to guarantee spatial homogeneity along the impact zone. The type of damage in specific areas of biological interest and in coastal cities such as Concón, Tongoy and Coquimbo is also reported. A maximum runup of 13.6 m was recorded in La Cebada (30.97°S; 71.65°W). The information presented herein provides spatial completeness in places that may have not been surveyed by other teams, and redundancy in areas surveyed by others.

  10. The Spitzer-HETDEX Exploratory Large-Area Survey

    CERN Document Server

    Papovich, Casey; Mehrtens, N; Lanham, C; Lacy, M; Ciardullo, R; Finkelstein, S L; Bassett, R; Behroozi, P; Blanc, G A; de Jong, R S; DePoy, D L; Drory, N; Gawiser, E; Gebhardt, K; Gronwall, C; Hill, G J; Hopp, U; Jogee, S; Kawinwanichakij, L; Marshall, J L; McLinden, E; Cooper, E Mentuch; Somerville, R S; Steinmetz, M; Tran, K -V; Tuttle, S; Viero, M; Wechsler, R; Zeimann, G

    2016-01-01

    We present post-cryogenic Spitzer imaging at 3.6 and 4.5 micron with the Infrared Array Camera (IRAC) of the Spitzer/HETDEX Exploratory Large-Area (SHELA) survey. SHELA covers $\\sim$deg$^2$ of the Sloan Digital Sky Survey "Stripe 82" region, and falls within the footprints of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) and the Dark Energy Survey. The HETDEX blind R $\\sim$ 800 spectroscopy will produce $\\sim$ 200,000 redshifts from the Lyman-$\\alpha$ emission for galaxies in the range 1.9 < z < 3.5, and an additional $\\sim$200,000 redshifts from the [OII] emission for galaxies at z < 0.5. When combined with deep ugriz images from the Dark Energy Camera, K-band images from NEWFIRM, and other ancillary data, the IRAC photometry from Spitzer will enable a broad range of scientific studies of the relationship between structure formation, galaxy stellar mass, halo mass, AGN, and environment over a co-moving volume of $\\sim$0.5 Gpc$^3$ at 1.9 < z < 3.5. Here, we discuss the properties o...

  11. First hyperspectral survey of the deep seafloor: DISCOL area, Peru Basin

    Science.gov (United States)

    Dumke, Ines; Nornes, Stein M.; Ludvigsen, Martin

    2017-04-01

    Conventional hyperspectral seafloor surveys using airborne or satellite platforms are typically limited to shallow coastal areas. This limitation is due to the requirement for illumination by sunlight, which does not penetrate into deeper waters. For hyperspectral studies in deeper marine environments, such as the deep sea, a close-range, sunlight-independent survey approach is therefore required. Here, we present the first hyperspectral data from the deep seafloor. The data were acquired in 4200 m water depth in the DISCOL (disturbance-recolonization) area in the Peru Basin (SW Pacific). This area is characterized by seafloor manganese nodules and recolonization by benthic fauna after a seafloor disturbance experiment conducted in 1989, and was revisited in 2015 by the JPI Oceans cruise SO-242. The acquisition setup consisted of a new Underwater Hyperspectral Imager (UHI) mounted on a remotely operated vehicle (ROV), which provided illumination of the seafloor. High spatial and spectral resolution were achieved by an ROV altitude of 1 m and recording of 112 spectral bands between 380 nm and 800 nm (4 nm resolution). Spectral classification was performed to classify manganese nodules and benthic fauna and map their distribution in the study area. The results demonstrate the high potential of underwater hyperspectral imaging in mapping and classifying seafloor deposits and habitats.

  12. Methodology for determination of pipeline trenching depth in shore approach areas using local environmental data and numerical models

    Energy Technology Data Exchange (ETDEWEB)

    Rego, Valeria S.; Braga, Vinicius R.; Mansur Barros, Claudio R.; Martinez, Marcio B.; Piaulino, Pedro O.; Teixeira, Marcelo J.B. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil); Gusmao, Luiz A.B. [Aquamodelo Consultoria e Engenharia Ltda., Rio de Janeiro, RJ (Brazil)

    2005-07-01

    Shore-approach engineering design of pipelines, including pipeline trenching specifications, presents great complexity due to comparatively (in relation to deeper waters) harsher environmental conditions and highly dynamic interaction between waves, currents and sediment transport. In general, pipelines should be buried in beach areas, but depending on the sea conditions and the trench depth, the pipeline may become unburied during its operational life. Unburied pipelines at shore-approach areas may suffer the action of unpredicted loads. The uncertainty related to these loads may decrease the structural reliability of the pipeline. the problem to be solved is how deep a pipeline requires to be trenched at the shore approach area, considering that it should be kept in this condition throughout its design life. This should be achieved with a cost-effective solution, assuring the structural reliability of the pipeline during operation, in addition to considering the feasibility of the project. Directional wave, water level, beach profile and sediment grain distribution data in the shore approach area permit determination of typical profiles, median sediment grain size, extreme and frequent wave and water level conditions, which are parameters to be used to simulate beach profile evolution through numerical model SBEACH and estimate the minimum burial depth profile. (author)

  13. The Sloan Digital Sky Survey Stripe 82 Imaging Data: Depth-Optimized Co-adds Over 300 deg$^2$ in Five Filters

    Energy Technology Data Exchange (ETDEWEB)

    Jiang, Linhua; Fan, Xiaohui; Bian, Fuyan; McGreer, Ian D.; Strauss, Michael A.; Annis, James; Buck, Zoë; Green, Richard; Hodge, Jacqueline A.; Myers, Adam D.; Rafiee, Alireza; Richards, Gordon

    2014-06-25

    We present and release co-added images of the Sloan Digital Sky Survey (SDSS) Stripe 82. Stripe 82 covers an area of ~300 deg(2) on the celestial equator, and has been repeatedly scanned 70-90 times in the ugriz bands by the SDSS imaging survey. By making use of all available data in the SDSS archive, our co-added images are optimized for depth. Input single-epoch frames were properly processed and weighted based on seeing, sky transparency, and background noise before co-addition. The resultant products are co-added science images and their associated weight images that record relative weights at individual pixels. The depths of the co-adds, measured as the 5σ detection limits of the aperture (3.''2 diameter) magnitudes for point sources, are roughly 23.9, 25.1, 24.6, 24.1, and 22.8 AB magnitudes in the five bands, respectively. They are 1.9-2.2 mag deeper than the best SDSS single-epoch data. The co-added images have good image quality, with an average point-spread function FWHM of ~1'' in the r, i, and z bands. We also release object catalogs that were made with SExtractor. These co-added products have many potential uses for studies of galaxies, quasars, and Galactic structure. We further present and release near-IR J-band images that cover ~90 deg(2) of Stripe 82. These images were obtained using the NEWFIRM camera on the NOAO 4 m Mayall telescope, and have a depth of about 20.0-20.5 Vega magnitudes (also 5σ detection limits for point sources).

  14. THE SLOAN DIGITAL SKY SURVEY STRIPE 82 IMAGING DATA: DEPTH-OPTIMIZED CO-ADDS OVER 300 deg{sup 2} IN FIVE FILTERS

    Energy Technology Data Exchange (ETDEWEB)

    Jiang, Linhua [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1504 (United States); Fan, Xiaohui; McGreer, Ian D.; Green, Richard [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Bian, Fuyan [Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, ACT 2611 (Australia); Strauss, Michael A.; Buck, Zoë [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States); Annis, James [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States); Hodge, Jacqueline A. [NRAO, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Myers, Adam D. [Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071 (United States); Rafiee, Alireza [Department of Physics, Astronomy, and Geosciences, Towson University, Towson, MD 21252 (United States); Richards, Gordon [Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 (United States)

    2014-07-01

    We present and release co-added images of the Sloan Digital Sky Survey (SDSS) Stripe 82. Stripe 82 covers an area of ∼300 deg{sup 2} on the celestial equator, and has been repeatedly scanned 70-90 times in the ugriz bands by the SDSS imaging survey. By making use of all available data in the SDSS archive, our co-added images are optimized for depth. Input single-epoch frames were properly processed and weighted based on seeing, sky transparency, and background noise before co-addition. The resultant products are co-added science images and their associated weight images that record relative weights at individual pixels. The depths of the co-adds, measured as the 5σ detection limits of the aperture (3.''2 diameter) magnitudes for point sources, are roughly 23.9, 25.1, 24.6, 24.1, and 22.8 AB magnitudes in the five bands, respectively. They are 1.9-2.2 mag deeper than the best SDSS single-epoch data. The co-added images have good image quality, with an average point-spread function FWHM of ∼1'' in the r, i, and z bands. We also release object catalogs that were made with SExtractor. These co-added products have many potential uses for studies of galaxies, quasars, and Galactic structure. We further present and release near-IR J-band images that cover ∼90 deg{sup 2} of Stripe 82. These images were obtained using the NEWFIRM camera on the NOAO 4 m Mayall telescope, and have a depth of about 20.0-20.5 Vega magnitudes (also 5σ detection limits for point sources)

  15. Exploring Milkyway Halo Substructures with Large-Area Sky Surveys

    Energy Technology Data Exchange (ETDEWEB)

    Li, Ting [Texas A & M Univ., College Station, TX (United States)

    2016-01-01

    Over the last two decades, our understanding of the Milky Way has been improved thanks to large data sets arising from large-area digital sky surveys. The stellar halo is now known to be inhabited by a variety of spatial and kinematic stellar substructures, including stellar streams and stellar clouds, all of which are predicted by hierarchical Lambda Cold Dark Matter models of galaxy formation. In this dissertation, we first present the analysis of spectroscopic observations of individual stars from the two candidate structures discovered using an M-giant catalog from the Two Micron All-Sky Survey. The follow-up observations show that one of the candidates is a genuine structure which might be associated with the Galactic Anticenter Stellar Structure, while the other one is a false detection due to the systematic photometric errors in the survey or dust extinction in low Galactic latitudes. We then presented the discovery of an excess of main sequence turn-off stars in the direction of the constellations of Eridanus and Phoenix from the first-year data of the Dark Energy Survey (DES) – a five-year, 5,000 deg2 optical imaging survey in the Southern Hemisphere. The Eridanus-Phoenix (EriPhe) overdensity is centered around l ~ 285° and b ~ -60° and the Poisson significance of the detection is at least 9σ. The EriPhe overdensity has a cloud-like morphology and the extent is at least ~ 4 kpc by ~ 3 kpc in projection, with a heliocentric distance of about d ~ 16 kpc. The EriPhe overdensity is morphologically similar to the previously-discovered Virgo overdensity and Hercules-Aquila cloud. These three overdensities lie along a polar plane separated by ~ 120° and may share a common origin. In addition to the scientific discoveries, we also present the work to improve the photometric calibration in DES using auxiliary calibration systems, since the photometric errors can cause false detection in first the halo substructure. We present a detailed description of the two

  16. The Gould's Belt Distances Survey (GOBELINS) I. Trigonometric parallax distances and depth of the Ophiuchus complex

    CERN Document Server

    Ortiz-León, Gisela N; Kounkel, Marina A; Dzib, Sergio A; Mioduszewski, Amy J; Rodríguez, Luis F; Torres, Rosa M; González-Lópezlira, Rosa A; Pech, Gerardo; Rivera, Juana L; Hartmann, Lee; Boden, Andrew F; Evans, Neal J; Briceño, Cesar; Tobin, John J; Galli, Phillip A B; Gudehus, Donald

    2016-01-01

    We present the first results of the Gould's Belt Distances Survey (GOBELINS), a project aimed at measuring the proper motion and trigonometric parallax of a large sample of young stars in nearby regions using multi-epoch Very Long Baseline Array (VLBA) radio observations. Enough VLBA detections have now been obtained for 16 stellar systems in Ophiuchus to derive their parallax and proper motion. This leads to distance determinations for individual stars with an accuracy of 0.3 to a few percent. In addition, the orbits of 6 multiple systems were modelled by combining absolute positions with VLBA (and in some cases, near infrared) angular separations. Twelve stellar systems are located in the dark cloud Lynds 1688, the individual distances for this sample are highly consistent with one another, and yield a mean parallax for Lynds 1688 of $\\varpi=7.28\\pm0.06$ mas, corresponding to a distance $d=137.3\\pm1.2$ pc. This represents an accuracy better than 1%. Three systems for which astrometric elements could be meas...

  17. Making high-accuracy null depth measurements for the LBTI exozodi survey

    Science.gov (United States)

    Mennesson, Bertrand; Defrère, Denis; Nowak, Matthias; Hinz, Philip; Millan-Gabet, Rafael; Absil, Olivier; Bailey, Vanessa; Bryden, Geoffrey; Danchi, William; Kennedy, Grant M.; Marion, Lindsay; Roberge, Aki; Serabyn, Eugene; Skemer, Andy J.; Stapelfeldt, Karl; Weinberger, Alycia J.; Wyatt, Mark

    2016-08-01

    The characterization of exozodiacal light emission is both important for the understanding of planetary systems evolution and for the preparation of future space missions aiming to characterize low mass planets in the habitable zone of nearby main sequence stars. The Large Binocular Telescope Interferometer (LBTI) exozodi survey aims at providing a ten-fold improvement over current state of the art, measuring dust emission levels down to a typical accuracy of 12 zodis per star, for a representative ensemble of 30+ high priority targets. Such measurements promise to yield a final accuracy of about 2 zodis on the median exozodi level of the targets sample. Reaching a 1 σ measurement uncertainty of 12 zodis per star corresponds to measuring interferometric cancellation ("null") levels, i.e visibilities at the few 100 ppm uncertainty level. We discuss here the challenges posed by making such high accuracy mid-infrared visibility measurements from the ground and present the methodology we developed for achieving current best levels of 500 ppm or so. We also discuss current limitations and plans for enhanced exozodi observations over the next few years at LBTI.

  18. A Survey on Secure Wireless Body Area Networks

    Directory of Open Access Journals (Sweden)

    Shihong Zou

    2017-01-01

    Full Text Available Combining tiny sensors and wireless communication technology, wireless body area network (WBAN is one of the most promising fields. Wearable and implantable sensors are utilized for collecting the physiological data to achieve continuously monitoring of people’s physical conditions. However, due to the openness of wireless environment and the significance and privacy of people’s physiological data, WBAN is vulnerable to various attacks; thus, strict security mechanisms are required to enable a secure WBAN. In this article, we mainly focus on a survey on the security issues in WBAN, including securing internal communication in WBAN and securing communication between WBAN and external users. For each part, we discuss and identify the security goals to be achieved. Meanwhile, relevant security solutions in existing research on WBAN are presented and their applicability is analyzed.

  19. 75 FR 68323 - Annual Surveys in the Manufacturing Area

    Science.gov (United States)

    2010-11-05

    ... Industrial Reports surveys, the Annual Survey of Manufactures, the Business R&D and Innovation Survey, and... M336G Civil Aircraft and Aircraft Engines MQ311A Flour Milling Products MQ313A Textiles MQ315A Apparel... under construction but not yet in operation. Business R&D and Innovation Survey The Business R&D and...

  20. Health Literacy in Rural Areas of China: Hypertension Knowledge Survey

    Directory of Open Access Journals (Sweden)

    Hude Quan

    2013-03-01

    Full Text Available We conducted this study to determine levels and correlates of hypertension knowledge among rural Chinese adults, and to assess the association between knowledge levels and salty food consumption among hypertensive and non-hypertensive populations. This face-to-face cross sectional survey included 665 hypertensive and 854 non-hypertensive respondents in the rural areas of Heilongjiang province, China. Hypertension knowledge was assessed through a 10-item test; respondents received 10 points for each correct answer. Among respondents, the average hypertension knowledge score was 26 out of a maximum of 100 points for hypertensive and 20 for non-hypertensive respondents. Hypertension knowledge was associated with marital status, education, health status, periodically reading books, newspapers or other materials, history of blood pressure measurement, and attending hypertension educational sessions. Hypertension knowledge is extremely low in rural areas of China. Hypertension education programs should focus on marginal populations, such as individuals who are not married or illiterate to enhance their knowledge levels. Focusing on educational and literacy levels in conjunction with health education is important given illiteracy is still a prominent issue for the Chinese rural population.

  1. Health literacy in rural areas of China: hypertension knowledge survey.

    Science.gov (United States)

    Li, Xia; Ning, Ning; Hao, Yanhua; Sun, Hong; Gao, Lijun; Jiao, Mingli; Wu, Qunhong; Quan, Hude

    2013-03-18

    We conducted this study to determine levels and correlates of hypertension knowledge among rural Chinese adults, and to assess the association between knowledge levels and salty food consumption among hypertensive and non-hypertensive populations. This face-to-face cross sectional survey included 665 hypertensive and 854 non-hypertensive respondents in the rural areas of Heilongjiang province, China. Hypertension knowledge was assessed through a 10-item test; respondents received 10 points for each correct answer. Among respondents, the average hypertension knowledge score was 26 out of a maximum of 100 points for hypertensive and 20 for non-hypertensive respondents. Hypertension knowledge was associated with marital status, education, health status, periodically reading books, newspapers or other materials, history of blood pressure measurement, and attending hypertension educational sessions. Hypertension knowledge is extremely low in rural areas of China. Hypertension education programs should focus on marginal populations, such as individuals who are not married or illiterate to enhance their knowledge levels. Focusing on educational and literacy levels in conjunction with health education is important given illiteracy is still a prominent issue for the Chinese rural population.

  2. Gravity survey in the San Luis Valley area, Colorado

    Science.gov (United States)

    Gaca, J. Robert; Karig, Daniel E.

    1965-01-01

    During the summers of 1963 and 1964, a regional gravity survey covering 6,000 square miles of the San Luis Valley and surrounding areas was made to determine subsurface basement configurations and to guide future crustal studies. The San Luis Valley, a large intermontane basin, is a segment of the Rio Grande trough, a reef system characterized by volcanism, normal faulting, and tilted fault blocks. The gravity data, accurate to about 0.5 mgal, were reduced to complete-Bouguer anomaly values. The Bouguer-anomaly gravity map delineates a series of en-echelon gravity highs in the central and western San Luis Valley. These gravity highs are interpreted as horsts of Precambrian rock buried by basin fill. A series of en-echelon gravity lows along the eastern edge of the Valley is interpreted as a graben filled with sedimentary and igneous rock estimated to be up to 30,000 ft thick. The relatively high regional gravity over the Sangre de Cristo Mountains suggests that these mountains are locally uncompensated. A subcircular gravity low in the Bonanza area is interpreted as an indication of low-density volcanic rocks within a caldera structure.

  3. Radiological surveys of properties in the Middlesex, New Jersey area. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Leggett, R W; Haywood, F.F. Cottrell, W.D.

    1981-03-01

    Results of the radiological surveys conducted at three properties in the Middlesex, New Jersey area as well as one additional location downstream from the Middlesex Sampling Plant (Willow Lake), are presented. The survey revealed that the yard around the church rectory on Harris Avenue is contaminated with a /sup 226/Ra-bearing material, probably pitchblende ore from the former Middlesex Sampling Plant. The elevated /sup 226/Ra concentrations around and, to a lesser extent, underneath the rectory are leading to elevated /sup 222/Rn concentrations in air in the rectory and elevated alpha contamination levels (from radon daughters) on surfaces inside the rectory. External gamma radiation levels in the rectory yard are well above background levels, and beta-gamma dose rates at many points in the yard are above federal guidelines for the release of property for unrestricted use. The radiological survey of a parking lot at the Union Carbide plant in Bound Brook, New Jersey revealed that a nearly circular region of 50-ft diam in the lot showed above-background external gamma radiation levels. Two isolated spots within this region showed concentrations of uranium in soil above the licensable level stated in 10 CFR 40. Soil samples taken in the area of elevated gamma radiation levels generally showed nearly equal activities of /sup 226/Ra and /sup 238/U. The survey at the residences on William Street in Piscataway, revealed that the front yeard is generally contaminated from near the surface to a depth of 1.5 to 2.5 ft with /sup 226/Ra-bearing material, possibly pitchblende ore. The remainder of the yard shows scattered contaminaion. External gamma radiation levels inside the house are above the background level near some outside walls.

  4. Snow measurement system for airborne snow surveys (GPR system from helicopter) in high mountian areas.

    Science.gov (United States)

    Sorteberg, Hilleborg K.

    2010-05-01

    In the hydropower industry, it is important to have precise information about snow deposits at all times, to allow for effective planning and optimal use of the water. In Norway, it is common to measure snow density using a manual method, i.e. the depth and weight of the snow is measured. In recent years, radar measurements have been taken from snowmobiles; however, few energy supply companies use this method operatively - it has mostly been used in connection with research projects. Agder Energi is the first Norwegian power producer in using radar tecnology from helicopter in monitoring mountain snow levels. Measurement accuracy is crucial when obtaining input data for snow reservoir estimates. Radar screening by helicopter makes remote areas more easily accessible and provides larger quantities of data than traditional ground level measurement methods. In order to draw up a snow survey system, it is assumed as a basis that the snow distribution is influenced by vegetation, climate and topography. In order to take these factors into consideration, a snow survey system for fields in high mountain areas has been designed in which the data collection is carried out by following the lines of a grid system. The lines of this grid system is placed in order to effectively capture the distribution of elevation, x-coordinates, y-coordinates, aspect, slope and curvature in the field. Variation in climatic conditions are also captured better when using a grid, and dominant weather patterns will largely be captured in this measurement system.

  5. Soil Survey Geographic (SSURGO) database for Torrance Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  6. Soil Survey Geographic (SSURGO) database for Eddy Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  7. Soil Survey Geographic (SSURGO) database for Otero Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  8. SURVEY, Brevard County and Incorporated Areas, Florida, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Survey data includes spatial datasets and data tables necessary to digitally represent data collected in the survey phase of the study. (Source: FEMA Guidelines and...

  9. CALIFA, the Calar Alto Legacy Integral Field Area survey: I. Survey presentation

    CERN Document Server

    Sanchez, S F; de Paz, A Gil; van de Ven, G; Vılchez, J M; Wisotzki, L; Walcher, C J; Mast, D; Aguerri, J A L; Albiol-Perez, S; Alonso-Herrero, A; Alves, J; Bakos, J; Bartakova, T; Bland-Hawthorn, J; Boselli, A; Bomans, D J; Castillo-Morales, A; Cortijo-Ferrero, C; de Lorenzo-Caceres, A; del Olmo, A; Dettmar, R -J; Dıaz, A; Ellis, S; Falcon-Barroso, J; Flores, H; Gallazzi, A; Garcıa-Lorenzo, B; Delgado, R Gonzalez; Gruel, N; Haines, T; Hao, C; Husemann, B; Iglesias-Páramo, J; Jahnke, K; Johnson, B; Jungwiert, B; Kalinova, V; Kehrig, C; Kupko, D; Lopez-Sanchez, A R; Lyubenova, M; Marino, R A; Marmol-Queralto, E; Marquez, I; Masegosa, J; Meidt, S; Mendez-Abreu, J; Monreal-Ibero, A; Montijo, C; Mourao, A M; Palacios-Navarro, G; Papaderos, P; Pasquali, A; Peletier, R; Perez, E; Perez, I; Quirrenbach, A; Relaño, M; Rosales-Ortega, F F; Roth, M M; Ruiz-Lara, T; Sanchez-Blazquez, P; Sengupta, C; Singh, R; Stanishev, V; Trager, S C; Vazdekis, A; Viironen, K; Wild, V; Zibetti, S; Ziegler, B

    2011-01-01

    We present here the Calar Alto Legacy Integral Field Area (CALIFA) survey, which has been designed to provide a first step in this direction.We summarize the survey goals and design, including sample selection and observational strategy.We also showcase the data taken during the first observing runs (June/July 2010) and outline the reduction pipeline, quality control schemes and general characteristics of the reduced data. This survey is obtaining spatially resolved spectroscopic information of a diameter selected sample of $\\sim600$ galaxies in the Local Universe (0.005< z <0.03). CALIFA has been designed to allow the building of two-dimensional maps of the following quantities: (a) stellar populations: ages and metallicities; (b) ionized gas: distribution, excitation mechanism and chemical abundances; and (c) kinematic properties: both from stellar and ionized gas components. CALIFA uses the PPAK Integral Field Unit (IFU), with a hexagonal field-of-view of $\\sim1.3\\sq\\arcmin'$, with a 100% covering fa...

  10. Depth Areas - USACE IENC

    Data.gov (United States)

    Department of Homeland Security — These inland electronic Navigational charts (IENCs) were developed from available data used in maintenance of Navigation channels. Users of these IENCs should be...

  11. National Training Center Fort Irwin expansion area aquatic resources survey

    Energy Technology Data Exchange (ETDEWEB)

    Cushing, C.E.; Mueller, R.P.

    1996-02-01

    Biologists from Pacific Northwest National Laboratory (PNNL) were requested by personnel from Fort Irwin to conduct a biological reconnaissance of the Avawatz Mountains northeast of Fort Irwin, an area for proposed expansion of the Fort. Surveys of vegetation, small mammals, birds, reptiles, amphibians, and aquatic resources were conducted during 1995 to characterize the populations and habitats present with emphasis on determining the presence of any species of special concern. This report presents a description of the sites sampled, a list of the organisms found and identified, and a discussion of relative abundance. Taxonomic identifications were done to the lowest level possible commensurate with determining the status of the taxa relative to its possible listing as a threatened, endangered, or candidate species. Consultation with taxonomic experts was undertaken for the Coleoptera ahd Hemiptera. In addition to listing the macroinvertebrates found, the authors also present a discussion related to the possible presence of any threatened or endangered species or species of concern found in Sheep Creek Springs, Tin Cabin Springs, and the Amargosa River.

  12. Hydrothermal alteration at the Roosevelt Hot Springs thermal area, Utah: Petrographic characterization of the alteration to 2 kilometers depth

    Energy Technology Data Exchange (ETDEWEB)

    Ballantyne, J.M.; Parry, W.T.

    1978-04-01

    Hydrothermal alteration in drill cuttings from Thermal Power drillhole 14-2, Roosevelt Hot Springs Thermal area, has been studied petrographically. The hole is sited in alluvium approximately 1.6 km southeast of the old Resort and was rotary drilled to a depth of 1866.0 m. The exact hole location is 2310 FNL, 350 FWL, Sec. 2, Twp 27S, Rge 9W, elevation 1908.5 m. Core was extracted from 792.5 to 795.5 m. Thin sections were made from samples at 15.2 m intervals of drill cuttings collected at 1.5 or 3.0 m intervals during drilling. Thin sections were made of 1.5 or 3.0 m intervals from 274.3 to 304.8 m, 487.9 to 581.2 m, and 868.7 to 899.2 m. These intervals were chosen for close spaced sampling on the basis of increases in temperature, porosity, conductivity and acoustic velocity shown in geophysical logs. A total of 153 thin sections of cuttings were made, and an additional 9 sections were made from the core. Depths of thin section samples are listed in the appendix. A visual estimate of the percentage of each rock type was made for each thin section.

  13. Large area and depth-profiling dislocation imaging and strain analysis in Si/SiGe/Si heterostructures.

    Science.gov (United States)

    Chen, Xin; Zuo, Daniel; Kim, Seongwon; Mabon, James; Sardela, Mauro; Wen, Jianguo; Zuo, Jian-Min

    2014-10-01

    We demonstrate the combined use of large area depth-profiling dislocation imaging and quantitative composition and strain measurement for a strained Si/SiGe/Si sample based on nondestructive techniques of electron beam-induced current (EBIC) and X-ray diffraction reciprocal space mapping (XRD RSM). Depth and improved spatial resolution is achieved for dislocation imaging in EBIC by using different electron beam energies at a low temperature of ~7 K. Images recorded clearly show dislocations distributed in three regions of the sample: deep dislocation networks concentrated in the "strained" SiGe region, shallow misfit dislocations at the top Si/SiGe interface, and threading dislocations connecting the two regions. Dislocation densities at the top of the sample can be measured directly from the EBIC results. XRD RSM reveals separated peaks, allowing a quantitative measurement of composition and strain corresponding to different layers of different composition ratios. High-resolution scanning transmission electron microscopy cross-section analysis clearly shows the individual composition layers and the dislocation lines in the layers, which supports the EBIC and XRD RSM results.

  14. Does strip-tillage could limit the drop of yields on soils of reduced depth of profiles in loess areas?

    Science.gov (United States)

    Rejman, Jerzy; Rafalska-Przysucha, Anna; Jadzczyszyn, Jan; Rodzik, Jan

    2016-04-01

    Strip tillage restrict a tillage operation to seed rows and enables a combination of tillage, sowing and application of fertilizers during one pass of agricultural machines. The practice decreases the costs of fuel and limits the risk of water erosion by the increase of infiltration of soil water. In the studies, we put a hypothesis that strip tillage is a tool to increase the yields on soils of reduced profiles. Studies were carried out in the loess area of the Lublin Upland (Poland). The site is cultivated from the beginning of the 18th century, and strip tillage is performed from 2008. All plant residues is left after harvest in the field and mixed with the soil by disc harrow. Measurements of solum depth (Ap-BC), soil properties and parameters of plant growth were carried out in 108 points in the field of the area of 4 ha. Crops included winter wheat (2014) and maize (2015). Studies showed that the profiles of Haplic Luvisol were largely truncated or overbuilt due to erosion and moldboard plow in the past. Solum depth ranged from 0.2 to 3.6 m (mean=1.29 m, CV=64%), and soils with the non-eroded, slightly, moderately, severely, very severely eroded and depositional profiles represented 13, 32, 10, 5, 8 and 32% of total number of cores, respectively. In a result of modification of profiles, clay content ranged from 84 to 222 (145; 16%) in the layer of 0-15 cm, whereas SOC concentration remained on relatively low level and ranged from 4.3 to 16.8 g/kg (9.1; 21.4%). Soil water content (SWC) within depth of 1-m profile was differentiated at the start of measurements in the middle of June 2015. The SWC was the highest in non-eroded and depositional soils and the smallest in severely and very severely eroded soils. The difference of 5% has maintained during the whole growing season and did not affect the growth of plants till the phase of flowering. Then, the plants on shallower soils passed quicker to the next phenological phases in comparison to the plants on deeper

  15. The ECB’s survey of professional forecasters and financial market volatility in the euro area

    NARCIS (Netherlands)

    Arnold, I.J.M.; Glasbeek, M.

    2011-01-01

    Since 1999, the European Central Bank (ECB) conducts a quarterly survey of the economic outlook in the euro area among professional forecasters. This article investigates the relationship between macroeconomic uncertainty, measured as the dispersion in economic forecasts across survey participants,

  16. Inversion of gravity data in the Big Bear Lake Area to recover depth to basement using Cauchy-type integrals

    DEFF Research Database (Denmark)

    Cai, Hongzhu; Zhdanov, Michael

    2014-01-01

    One of the important applications of the gravity method is evaluation of the depth to the basement, which is characterized by a significant density contrast with the sedimental layeres. We have introduced recently a new method of modeling and inversion of potential field data generated by a density...... response caused by sediment-basement interface with variable density in depth. We have also developed the inversion of gravity data to recover the depth to basement given the density profile with depth....

  17. Wetland Survey of Selected Areas in the Oak Ridge Y-12 Plant Area of Responsibilty, Oak Ridge, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    Rosensteel

    1997-01-01

    This document was prepared to summarize wetland surveys performed in the Y- 1 2 Plant area of responsibility in June and July 1994. Wetland surveys were conducted in three areas within the Oak Ridge Y- 12 Plant area of responsibility in June and July 1994: the Upper East Fork Poplar Creek (UEFPC) Operable Unit (OU), part of the Bear Creek Valley OU (the upper watershed of Bear Creek from the culvert under Bear Creek Road upstream through the Y-12 West End Environmental Management Area, and the catchment of Bear Creek North Tributary 1), and part of Chestnut Ridge OU 2 (the McCoy Branch area south of Bethel Valley Road). Using the criteria and methods set forth in the Wetlands Delineation Manual, 18 wetland areas were identified in the 3 areas surveyed; these areas were classified according to the system developed by Cowardin. Fourteen wetlands and one wetland/pond area that are associated with disturbed or remnant stream channels and seeps were identified in the UEFPC OU. Three wetlands were identified in the Bear Creek Valley OU portion of the survey area. One wetland was identified in the riparian zone of McCoy Branch in the southern portion of Chestnut Ridge OU 2.

  18. Estimated probabilities, volumes, and inundation areas depths of potential postwildfire debris flows from Carbonate, Slate, Raspberry, and Milton Creeks, near Marble, Gunnison County, Colorado

    Science.gov (United States)

    Stevens, Michael R.; Flynn, Jennifer L.; Stephens, Verlin C.; Verdin, Kristine L.

    2011-01-01

    During 2009, the U.S. Geological Survey, in cooperation with Gunnison County, initiated a study to estimate the potential for postwildfire debris flows to occur in the drainage basins occupied by Carbonate, Slate, Raspberry, and Milton Creeks near Marble, Colorado. Currently (2010), these drainage basins are unburned but could be burned by a future wildfire. Empirical models derived from statistical evaluation of data collected from recently burned basins throughout the intermountain western United States were used to estimate the probability of postwildfire debris-flow occurrence and debris-flow volumes for drainage basins occupied by Carbonate, Slate, Raspberry, and Milton Creeks near Marble. Data for the postwildfire debris-flow models included drainage basin area; area burned and burn severity; percentage of burned area; soil properties; rainfall total and intensity for the 5- and 25-year-recurrence, 1-hour-duration-rainfall; and topographic and soil property characteristics of the drainage basins occupied by the four creeks. A quasi-two-dimensional floodplain computer model (FLO-2D) was used to estimate the spatial distribution and the maximum instantaneous depth of the postwildfire debris-flow material during debris flow on the existing debris-flow fans that issue from the outlets of the four major drainage basins. The postwildfire debris-flow probabilities at the outlet of each drainage basin range from 1 to 19 percent for the 5-year-recurrence, 1-hour-duration rainfall, and from 3 to 35 percent for 25-year-recurrence, 1-hour-duration rainfall. The largest probabilities for postwildfire debris flow are estimated for Raspberry Creek (19 and 35 percent), whereas estimated debris-flow probabilities for the three other creeks range from 1 to 6 percent. The estimated postwildfire debris-flow volumes at the outlet of each creek range from 7,500 to 101,000 cubic meters for the 5-year-recurrence, 1-hour-duration rainfall, and from 9,400 to 126,000 cubic meters for

  19. Colado geothermal resource assessment: Shallow-hole temperature survey: Intermediate-depth holes IGH no. 1 and no. 2; Depth test hole 44X-10

    Science.gov (United States)

    Jones, N. O.

    1982-09-01

    The Getty Oil Company began the field work on a government cost-sharing venture to assess the geothermal potential in the Colado area of Pershing County, Nevada. Eighteen shallow (500-foot) temperature gradient holes, two intermediate (1500-foot) temperature gradient holes and one deep (8000-foot) exploratory well were drilled. All field work was completed in May 1981. Maximum temperature achieved was 2820 F at 7064 feet. No fluid reservoir was encountered with this hole.

  20. Characterization of ichthyoplankton within the U.S. Geological Survey's Northeastern Gulf of Mexico study area - based on analysis of Southeast Area Monitoring and Assessment Program (SEAMAP) Sampling Surveys, 1982-1999. NEGOM ichthyoplankton synopsis final report

    Science.gov (United States)

    Lyczkowski-Shultz, Joanne; Hanisko, David S.; Sulak, Kenneth J.; Dennis, George D.

    2004-01-01

    This synthesis was undertaken to characterize the occurrence and abundance of fish eggs and larvae in the northeastern Gulf of Mexico (NEGOM) and to assess the region's relative importance in the early life history of fishes as compared to the entire U.S. Gulf of Mexico. Data for 66 selected taxa from 1,166 bongo and neuston net samples at 72 localities [comprising the UGSG NEGOM Ichthyoplankton Synopsis (UNIS) Study Area] were analyzed. These data were taken during annual Southeast Area Monitoring and Assessment Program (SEAMAP) gulfwide surveys from 1982-1999, and were summarized by the NMFS to accomplish this objective. Comparison of the UNIS Study Area with the overall SEAMAP survey area revealed that the larvae of 16 taxa occurred more frequently and were relatively more abundant in the UNIS Study Area than the entire SEAMAP survey area while for other taxa occurrence and relative abundance were comparable. These taxa represented fishes from mesopelagic, continental shelf, and reef assemblages reflecting the wide diversity of habitats available in the NEGOM and included the young of two important resource taxa, Rhomboplites aurorubens (vermilion snapper) and Seriola spp. (amberjacks). Distinct distribution patterns were observed among larvae in the UNIS Study Area that appear to be associated with the presence of the DeSoto Canyon. One notable pattern was the predominance of certain taxa to either the west or east of longitude 86.5-87.0o W. Larvae of several characteristic reef-fish families were most common to the east of this apparent zoogeographic faunal discontinuity. An alternative pattern was seen among taxa whose larvae occurred primarily at locations over depth contours outlining the canyon. Additionally, the UNIS Study Area contributed more fish eggs, total larvae, and zooplankton to survey totals than would be expected from the number of samples taken in the study area. This pattern was more evident during spring than fall surveys. It may relate to

  1. Inferring the subsurface basement depth and the structural trends as deduced from aeromagnetic data at West Beni Suef area, Western Desert, Egypt

    Science.gov (United States)

    Khalil, Ahmed; Abdel Hafeez, Tharwat H.; Saleh, Hassan S.; Mohamed, Waheed H.

    2016-12-01

    The present work aimed to delineate the subsurface structures and to estimate the magnetic source depth at the selected area lying in West Beni Suef area, Western Desert, Egypt, following different geomagnetic techniques. The analysis of aeromagnetic data demonstrates five significant tectonic faults trending to NW-SE, ENE-WSW, NE-SW, E-W and NNW-SSE directions constructed using Euler deconvolution techniques. The execution of this study is initiated by transformation of the total intensity aeromagnetic data to the reduced to pole (RTP) magnetic intensity. This is followed by applying several transformation techniques and various filtering processes through qualitative and quantitative analyses on magnetic data. The reduced to the northern magnetic pole (RTP) data are separated spectrally into regional and residual magnetic components using the computed power spectrum of the magnetic data. The estimated mean depths of both regional and residual sources are found to be 5.27 km and 2.78 km respectively. Also, depth estimations have been conducted by application of the Euler deconvolution and 2-D modeling techniques. The results indicate that the eastern and northern parts of the study area discriminate deeper basement relief and the depth of basement surface reaches to 5095 m. While the southern and western parts of the study area discriminate shallower basement relief and the depth of basement surface reaches to 227 m. This study has given a clear picture of the geologic structures beneath the study area.

  2. Cultural Resource Survey Report. Hildebrand Ranch Area: Proposed Chatfield Arboretum.

    Science.gov (United States)

    1981-05-01

    on foot and digging test pits if they seemed useful. The pedestrian survey was accomplished in a standard manner by walking slowly in parallel zig - zag ...few hardy visitors on various military, exploratory or religious missions. After discovery of gold at Sutter’s Mill , and subsequently on Cherry Creek

  3. The European large area ISO survey - III. 90-mu m extragalactic source counts

    DEFF Research Database (Denmark)

    Efstathiou, A.; Oliver, S.; Rowan-Robinson, M.

    2000-01-01

    We present results and source counts at 90 mum extracted from the preliminary analysis of the European Large Area ISO Survey (ELAIS). The survey covered about 12 deg(2) of the sky in four main areas and was carried out with the ISOPHOT instrument onboard the Infrared Space Observatory (ISO...

  4. The European large area ISO survey - III. 90-mu m extragalactic source counts

    DEFF Research Database (Denmark)

    Efstathiou, A.; Oliver, S.; Rowan-Robinson, M.

    2000-01-01

    We present results and source counts at 90 mum extracted from the preliminary analysis of the European Large Area ISO Survey (ELAIS). The survey covered about 12 deg(2) of the sky in four main areas and was carried out with the ISOPHOT instrument onboard the Infrared Space Observatory (ISO...

  5. Survey monitoring of environmental radioactivity in Busan area

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Han Soeb; Jang, Young A [Busan Regional Monitoring Station, Busan (Korea, Republic of)

    2001-12-15

    At Regional Radioactivity Monitoring Station in Busan have been measured periodically in 2001 gross beta activities in the airborne dust, fallout, precipitation and tap water and gamma exposure rates. Gamma nuclides in airborne dust, fallout and precipitation have also been I monitored at the station. As a part of environmental radiation/radioactivity distribution survey around Pusan, vegetables, fishes, shellfish, drinking water (total 33ea) samples were taken from sampling sites which were selected by KlNS. We analysis gamma nuclide for all. No significant changes from the previous survey have been found in both beta activities and gamma exposure rates. As the results of analyzing an gamma nuclide concentration in environmental samples in Pusan are fee of radiological contaminants.

  6. Survey monitoring of environmental radioactivity in Gunsan area

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Byoung Ho; Ro, Jeong Suk [Kunsan Regional Radioactivity Monitoring Station, Gunsan (Korea, Republic of)

    2001-01-15

    At Regional Radioactivity Monitoring Station in Kunsan have been measured priodically in 2000 gross beta activities in the airborne dust, fallout, precipitation and tap water and gamma exposure rates. Artificial radionuclide of {sup 137}Cs in airborne dust, fallout and precipitation have also been monitored at the station. As a part of environmental radiation/radioactivity distribution survey around Jeon-buk, vegetables, fishes, shellfishes, drinking water (total 33ea) samples were taken from sampling sites which were selected by KINS. We analysis gamma isotope for all. No significant Changes from the previous survey have been found in both beta activities and gamma exposure rates. As the results of analyzig an artificial nuclide concentration in living environmental sample in Jeon-buk are I fee of radiological contaminants.

  7. Survey monitoring of environmental radioactivity in Gunsan area

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Byoung Ho; Ro, Jeong Suk [Kunsan Regional Radioactivity Monitoring Station, Gunsan (Korea, Republic of)

    2002-12-15

    At Regional Radioactivity Monitoring Station in Kunsan have been measured priodically in 2002 gross beta activities in the airborne dust, fallout, precipitation and tap water and gamma exposure rates. Artificial radionuclide of {sup 137}Cs in airborne dust, fallout and precipitation have also been monitored at the station. As a part of environmental radiation/radioactivity distribution survey around Jeon-buk, vegetables, fishes, shellfishes, drinking water (total 33ea) samples were taken from sampling sites which were selected by KINS. We analysis gamma isotope for all. No significant changes from the previous survey have been found in both beta activities and gamma exposure rates. As the results of analyzig an artificial nuclide concentration in living environmental sample in Jeon-buk are fee of radiological contaminants.

  8. Survey monitoring of environmental radioactivity in Busan area

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Han Soeb; Jang, Young A. [Busan Regional Monitoring Station, Busan (Korea, Republic of)

    2003-12-15

    At Regional Radioactivity Monitoring Station in Pusan have been measured periodically in 2003 gross beta activities in the airborne dust, fallout, precipitation and tap water and gamma exposure rates. Gamma nuclides in airborne dust, fallout and precipitation have also been monitored at the station. As a part of environmental radiation/radioactivity distribution survey around Busan foodstuffs, dust, drinking water (total 24ea) samples were taken from sampling sites which were selected by KINS. We analysis gamma nuclide for all. No significant changes from the previous survey have been found in both beta activities and gamma exposure rates. As the results of analyzing an gamma nuclide concentration in environmental samples in Pusan are fee of radiological contaminants.

  9. Survey monitoring of environmental radioactivity in Busan area

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Han Soeb; Jang, Young A [Busan Regional Monitoring Station, Busan (Korea, Republic of)

    2002-12-15

    At Regional Radioactivity Monitoring Station in Busan have been measured periodically in 2002 gross beta activities in the airborne dust, fallout, precipitation and tap water and gamma exposure rates. Gamma nuclides in airborne dust, fallout and precipitation have also been monitored at the station. As a part of environmental radiation/radioactivity distribution survey around Pusan foodstuffs, dust, drinking water (total 24ea) samples were taken from sampling sites which were selected by KINS. We analysis gamma nuclide for all. No significant changes from the previous survey have been found in both beta activities and gamma exposure rates. As the results of analyzing an gamma nuclide concentration in environmental samples in Pusan are fee of radiological contaminants.

  10. Spatial and depth wise characterization of radionuclides and minerals in various beach sediments from high background radiation area, Kerala, India.

    Science.gov (United States)

    Ramasamy, V; Sundarrajan, M; Paramasivam, K; Suresh, G

    2014-11-04

    The activity concentrations ((238)U, (232)Th and (40)K) and mineralogical characterization of different layer (upper surface, first, second and third feet) Kerala beach sediments have been assessed with an aim of evaluating the radioactivity content profile, its relation to specific minerals and their distributions (spatial and depth wise). The eight different radiological indices are calculated for all samples and compared with either recommended values or the world average values of radioactivity content of the three primordial radionuclides to assess the complete radiological profile of the sediments. The radioactivity study suggests that the average specific activities of radionuclides ((238)U and (232)Th) are higher than the world average values as given in UNSCEAR reports and all radiological parameters in all layer samples are more than the recommended safety levels. These results are on the expected lines since the samples are from a well-known high background radiation area. Using FTIR, mineralogical characteristics of the sediments were analyzed and the extinction coefficient is calculated to find the relative distribution of major minerals. The calculated values show that the amount of major minerals decreases in the order of quartz>calcite>kaolinite>microcline feldspar in all layers. To confirm the results obtained from FTIR, XRD analysis was also carried out. The observations made through the XRD technique are matched with FTIR observations. Statistical analyses (cluster and factor analysis) are carried out to assess the relation between the radionuclides and minerals, and also assess their distribution patterns in different layers. The analyses suggest that the concentration of (40)K may have a strong association with the light mineral calcite and also suggest that spatial distributions of (40)K and calcite are almost similar in every layer. The concentrations of (238)U, (232)Th and absorbed dose rate are evenly distributed (spatial) and other

  11. Bear range-grazing area survey: Joint report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Recommendations for establishing livestock grazing area, consistent with refuge purposes and minimization of bear attacks. Includes statistics on bear kills,...

  12. Survey of potential geopressured resource areas in California. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Sanyal, S.K.; Robertson-Tait, A.; Kraemer, M.; Buening, N.

    1993-03-01

    This paper presents the initial results of a survey of the occurrence and characteristics of geopressured fluid resources in California using the publicly- available database involving more than 150,000 oil and gas wells drilled in the State. Of the 975 documented on-shore oil and gas pools studied, about 42% were identified as potentially geopressured. Geothermal gradients in California oil and gas fields lie within the normal range of 1 F to 2 F per 100 feet. Except for the Los Angeles Basin, there was no evidence of higher temperatures or temperature gradients in geopressured pools.

  13. Survey monitoring of environmental radioactivity in Jeju area

    Energy Technology Data Exchange (ETDEWEB)

    U, Zang Kual; Kang, Tae Woo; Park, Won Pyo [Jeju National Univ., Jeju (Korea, Republic of)

    2003-12-15

    The project is carried out to monitor the change of environmental radioactivity in Jeju, and to provide a systematic data for radiation monitoring and counter measurement at a radiological emergency situation. Also the survey of natural environmental radioactivities in the samples was conducted to make the reliable data base for evaluation of internal exposure and environmental contamination of radiation. This report contains the data of gamma exposure rates and radioactivities of airborne dust, fallout, precipitation and tap water which were analyzed periodically by Jeju Regional Monitoring Station in 2002. Also it contains the data of natural radioactivity levels of food stuff such as agricultural and marine products, including drinking waters.

  14. Estimating spatial distribution of daily snow depth with kriging methods: combination of MODIS snow cover area data and ground-based observations

    Directory of Open Access Journals (Sweden)

    C. L. Huang

    2015-09-01

    Full Text Available Accurately measuring the spatial distribution of the snow depth is difficult because stations are sparse, particularly in western China. In this study, we develop a novel scheme that produces a reasonable spatial distribution of the daily snow depth using kriging interpolation methods. These methods combine the effects of elevation with information from Moderate Resolution Imaging Spectroradiometer (MODIS snow cover area (SCA products. The scheme uses snow-free pixels in MODIS SCA images with clouds removed to identify virtual stations, or areas with zero snow depth, to compensate for the scarcity and uneven distribution of stations. Four types of kriging methods are tested: ordinary kriging (OK, universal kriging (UK, ordinary co-kriging (OCK, and universal co-kriging (UCK. These methods are applied to daily snow depth observations at 50 meteorological stations in northern Xinjiang Province, China. The results show that the spatial distribution of snow depth can be accurately reconstructed using these kriging methods. The added virtual stations improve the distribution of the snow depth and reduce the smoothing effects of the kriging process. The best performance is achieved by the OK method in cases with shallow snow cover and by the UCK method when snow cover is widespread.

  15. CARMA Large Area Star Formation Survey: Structure and Kinematics of Dense Gas in Serpens Main

    CERN Document Server

    Lee, Katherine I; Storm, Shaye; Looney, Leslie W; Mundy, Lee G; Segura-Cox, Dominique; Teuben, Peter; Rosolowsky, Erik; Arce, Hector G; Ostriker, Eve C; Shirley, Yancy L; Kwon, Woojin; Kauffmann, Jens; Tobin, John J; Plunkett, Adele L; Pound, Marc W; Salter, Demerese M; Volgenau, N H; Chen, Che-Yu; Tassis, Konstantinos; Isella, Andrea; Crutcher, Richard M; Gammie, Charles F; Testi, Leonardo

    2014-01-01

    We present observations of N2H+(1-0), HCO+(1-0), and HCN(1-0) toward the Serpens Main molecular cloud from the CARMA Large Area Star Formation Survey (CLASSy). We mapped 150 square arcminutes of Serpens Main with an angular resolution of 7 arcsecs. The gas emission is concentrated in two subclusters (the NW and SE subclusters). The SE subcluster has more prominent filamentary structures and more complicated kinematics compared to the NW subcluster. The majority of gas in the two subclusters has subsonic to sonic velocity dispersions. We applied a dendrogram technique with N2H+(1-0) to study the gas structures; the SE subcluster has a higher degree of hierarchy than the NW subcluster. Combining the dendrogram and line fitting analyses reveals two distinct relations: a flat relation between nonthermal velocity dispersion and size, and a positive correlation between variation in velocity centroids and size. The two relations imply a characteristic depth of 0.15 pc for the cloud. Furthermore, we have identified s...

  16. Aerial surveys adjusted by ground surveys to estimate area occupied by black-tailed prairie dog colonies

    Science.gov (United States)

    Sidle, John G.; Augustine, David J.; Johnson, Douglas H.; Miller, Sterling D.; Cully, Jack F.; Reading, Richard P.

    2012-01-01

    Aerial surveys using line-intercept methods are one approach to estimate the extent of prairie dog colonies in a large geographic area. Although black-tailed prairie dogs (Cynomys ludovicianus) construct conspicuous mounds at burrow openings, aerial observers have difficulty discriminating between areas with burrows occupied by prairie dogs (colonies) versus areas of uninhabited burrows (uninhabited colony sites). Consequently, aerial line-intercept surveys may overestimate prairie dog colony extent unless adjusted by an on-the-ground inspection of a sample of intercepts. We compared aerial line-intercept surveys conducted over 2 National Grasslands in Colorado, USA, with independent ground-mapping of known black-tailed prairie dog colonies. Aerial line-intercepts adjusted by ground surveys using a single activity category adjustment overestimated colonies by ≥94% on the Comanche National Grassland and ≥58% on the Pawnee National Grassland. We present a ground-survey technique that involves 1) visiting on the ground a subset of aerial intercepts classified as occupied colonies plus a subset of intercepts classified as uninhabited colony sites, and 2) based on these ground observations, recording the proportion of each aerial intercept that intersects a colony and the proportion that intersects an uninhabited colony site. Where line-intercept techniques are applied to aerial surveys or remotely sensed imagery, this method can provide more accurate estimates of black-tailed prairie dog abundance and trends

  17. The technology of reduce the detection blind area depth andincrease the detection depth of transient electromagnetic method%瞬变电磁法探测盲区深度减少和探测深度增加技术

    Institute of Scientific and Technical Information of China (English)

    陈魁奎; 王心义

    2016-01-01

    In order to solve the problem that the detection blind area and the detection depth of the transient electromagnetic method to detect the underground,according to the working principle of the transient electromagnetic method,the technology of reduce the detection blind area depth and increase the detection depth of transient electromagnetic method is studied.According to the principle of least square method,it is used the Matlab to fit the induction potential decay curves on the basis of the early signal,then dealing with the software of YCS40 (A) to stack,it can get the ideal results after forth fitting that can effectively reduce the blind area depth to 18 m.Compared and analyzed the coil size,emission frequency and depth coefficient of transient electromagnetic instrument,it found that using the 2 m transmitter coil with high current,adjusting the minimum transmission frequency and increaseing deep conversion coefficient can increase the TEM detection depth.The results can guide the application of the transient electromagnetic method,and has the significance to ensure safe production of coal mining enterprises.%为解决瞬变电磁法在井下探测时存在探测盲区和探测深度受限等问题,根据瞬变电磁法工作原理,对瞬变电磁法盲区深度减少技术和探测深度增加技术进行研究.在早期信号的基础上,根据最小二乘法原理,将感应电位的衰减曲线借助Matlab工具进行拟合,并在YCS40(A)的软件处理中进行叠加,经4次拟合后,结果较为理想,可减少盲区深度至18 m;通过对瞬变电磁仪线圈边长大小、发射频率和深度系数的对比分析发现,采用2 m发射线圈,通以大电流,调节最低发射频率,提高时深转换系数,可增加TEM探测深度.研究结果可指导井下瞬变电磁法的应用,对确保煤矿企业安全生产具有重要意义.

  18. Survey monitoring of environmental radioactivity in Jeju area

    Energy Technology Data Exchange (ETDEWEB)

    U, Zang Kual; Kang, Tae Woo [Jeju National Univ., Jeju (Korea, Republic of)

    2000-12-15

    The project is carried out to monitor the change of environmental radioactivity in Jeju, and to provide a systematic data for radiation monitoring and counter measurement at a radiological emergency situation. Also the survey of natural environmental radioactivities in the samples was conducted to make the reliable data base for evaluation of internal exposure and environmental contamination of radiation. This report contains the data of gamma exposure rates and radioactivities of airborne dust, fallout, precipitation and tap water which were analyzed periodically by Jeju Regional Monitoring Station in 2000. Also it contains the data of natural radioactivity levels of food stuff such as agricultural and marine products, including drinking waters. There was no significant difference in environmental radioactivities between 1999 and 2000.

  19. SHELA: The Spitzer-HETDEX Exploratory Large Area Survey

    Science.gov (United States)

    Papovich, Casey J.; Gebhardt, K.; Behroozi, P.; Bender, R.; Blanc, G. A.; Ciardullo, R.; DePoy, D.; de Jong, R.; Drory, N.; Evans, N.; Fabricius, M.; Finkelstein, S.; Gawiser, E.; Greene, J.; Gronwall, C.; Hill, G.; Hopp, U.; Jogee, S.; Lacy, M.; Landriau, M.; Marshall, J.; Tuttle, S.; Somerville, R.; Steinmetz, M.; Suntzeff, N.; Tran, K.; Wechsler, R.; Wisotzki, L.

    2012-01-01

    We present an overview of our Spitzer Exploratory survey to obtain IRAC imaging in a 28 sq deg field with deep optical imaging lying within the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey. Our goal is to explore the relationship between galaxy stellar mass, dark-matter halo mass, and environment during the important cosmic epoch (redshifts 2deep IRAC and optical imaging in our program will provide a uniquely powerful dataset enabling these goals. Working in blind spectroscopic mode, HETDEX will obtain redshifts in this field for approximately 200,000 galaxies and map out the cosmic web at redshifts 1.9web, representative of field, groups, and proto-clusters. The IRAC data will provide the key missing ingredient by allowing us to measure galaxy stellar masses down to values well below the characteristic mass of the stellar mass function at these redshifts. By combining the IRAC data with the halo mass and local density (environment) measured from clustering statistics in the spectroscopic and associated trained photometric dataset, we will obtain a detailed view of how galaxies grow their stellar mass within different dark matter halos and as a function of environment. Ultimately, this study will advance our understanding of the physical processes that drive the formation of stars in galaxies and the build up of stellar mass over cosmic time. In the spirit of Exploratory programs, SHELA will enable a broad range of scientific explorations beyond our immediate goals by delivering all science products (images, catalogs, spectra, and redshifts) to the public.

  20. Use Of Pulsed IR Thermography For Determination Of Size And Depth Of Subsurface Defect Taking Into Account The Shape Of Its Cross-Section Area

    Directory of Open Access Journals (Sweden)

    Wysocka-Fotek O.

    2015-06-01

    Full Text Available The paper is devoted to reconstruction of size and depth (distance from the tested surface of artificial defects with square and rectangular cross-section areas using the pulsed IR thermography. Defects in form of flat-bottom holes were made in austenitic steel plate. The defect size was estimated on the basis of surface distribution of the time derivative of the temperature. In order to asses the depth of defects with considered geometries on the basis of calibration relations (i.e. dependence of time of contrast maximum vs. defect depth for given defect diameter obtained for circular defects, the ‘equivalent diameter’ describing not only the defect cross-section area but also its shape was assigned. It has been shown that presented approach gives satisfactory results.

  1. Fiscal year 1991 report on archaeological surveys of the 100 Areas, Hanford Site, Washington

    Energy Technology Data Exchange (ETDEWEB)

    Chatters, J.C.; Gard, H.A.; Minthorn, P.E.

    1992-09-01

    In compliance with Section 106 of the National Historic Preservation Act (NHPA), and at the request of Westinghouse Hanford Company, the Hanford Cultured Resources Laboratory (HCRL) conducted an archaeological survey during FY 1991 of the 100-Area reactor compounds on the US Department of Energy`s Hanford Site. This survey was conducted as part of a comprehensive resources review of 100-Area Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) operable units in support of CERCLA characterization activities. The work included a lite and records review and pedestrian survey of the project area following procedures set forth in the Hanford Cultural Resources Management Plan.

  2. Fiscal year 1991 report on archaeological surveys of the 100 Areas, Hanford Site, Washington

    Energy Technology Data Exchange (ETDEWEB)

    Chatters, J.C.; Gard, H.A.; Minthorn, P.E.

    1992-09-01

    In compliance with Section 106 of the National Historic Preservation Act (NHPA), and at the request of Westinghouse Hanford Company, the Hanford Cultured Resources Laboratory (HCRL) conducted an archaeological survey during FY 1991 of the 100-Area reactor compounds on the US Department of Energy's Hanford Site. This survey was conducted as part of a comprehensive resources review of 100-Area Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) operable units in support of CERCLA characterization activities. The work included a lite and records review and pedestrian survey of the project area following procedures set forth in the Hanford Cultural Resources Management Plan.

  3. Fiscal year 1991 report on archaeological surveys of the 100 Areas, Hanford Site, Washington

    Energy Technology Data Exchange (ETDEWEB)

    Chatters, J.C.; Gard, H.A.; Minthorn, P.E.

    1992-09-01

    In compliance with Section 106 of the National Historic Preservation Act (NHPA), and at the request of Westinghouse Hanford Company, the Hanford Cultured Resources Laboratory (HCRL) conducted an archaeological survey during FY 1991 of the 100-Area reactor compounds on the US Department of Energy's Hanford Site. This survey was conducted as part of a comprehensive resources review of 100-Area Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) operable units in support of CERCLA characterization activities. The work included a lite and records review and pedestrian survey of the project area following procedures set forth in the Hanford Cultural Resources Management Plan.

  4. Fiscal year 1991 report on archaeological surveys of the 100 Areas, Hanford Site, Washington

    Energy Technology Data Exchange (ETDEWEB)

    Chatters, J.C.; Gard, H.A.; Minthorn, P.E.

    1992-09-01

    In compliance with Section 106 of the National Historic Preservation Act (NHPA), and at the request of Westinghouse Hanford Company, the Hanford Cultured Resources Laboratory (HCRL) conducted an archaeological survey during FY 1991 of the 100-Area reactor compounds on the US Department of Energy`s Hanford Site. This survey was conducted as part of a comprehensive resources review of 100-Area Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) operable units in support of CERCLA characterization activities. The work included a lite and records review and pedestrian survey of the project area following procedures set forth in the Hanford Cultural Resources Management Plan.

  5. Bird population and habitat surveys in urban areas

    Science.gov (United States)

    DeGraaf, R.M.; Geis, A.D.; Healy, P.A.

    1991-01-01

    Breeding bird populations in six habitats in Columbia. MD, were studied to develop procedures suitable for measuring bird use of residential areas and to identify habitat characteristics that define the distribution of various common bird species. A procedure to measure bird use based on 4-min transect counts on plots measuring 91 m ? 91 m proved better than point counts. Transect counts reduced many of the problems associated with counting birds in urban areas, such as varying noise and visibility. Eighty percent of observations were recorded in the first 4 min. Habitat measurement procedures were examined also. It was found that a subsample of woody tree and shrub crown volumes made on 0.2 ha was highly correlated with similar measures made on 0.8-ha plots.

  6. Sample Archaeological Survey of Public Use Areas, Milford Lake, Kansas

    Science.gov (United States)

    1982-09-01

    tempered pottery with a marked collar rim incised with zig - zags , herringbone and hatched alternating triangles; unnotched triangular arrow points; French...name was chosen. The name selected (Milford) combined the town’s two vital business sources. The Union and Sreeter Mills located in the area, gave the...first _0 * half of the name. The Union Mill , (1863-1880), was a lumber mill set on * Madison Creek. The Streeter Mill , (l883-1942)located a short

  7. A depth-adjusted ambient distribution approach for setting numeric removal targets for a Great Lakes Area of Concern beneficial use impairment: Degraded benthos

    Science.gov (United States)

    We compiled and modelled macroinvertebrate assemblage data from samples collected in 1995-2014 from the estuarine portion of the St. Louis River Area of Concern (AOC) of western Lake Superior. Our objective to create depth-adjusted cutoff values for benthos condition classes (po...

  8. The Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS): Survey design, data catalogue and GAMA/WiggleZ spectroscopy

    CERN Document Server

    Ching, John H Y; Croom, Scott M; Johnston, Helen M; Pracy, Michael B; Couch, Warrick J; Hopkins, A M; Jurek, Russell J; Pimbblet, K A

    2016-01-01

    We present the Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS), a spectroscopic catalogue of radio sources designed to include the full range of radio AGN populations out to redshift z = 0.8. The catalogue covers roughly 800 square degrees of sky, and provides optical identifications for 19,179 radio sources from the 1.4 GHz Faint Images of the Radio Sky at Twenty-cm (FIRST) survey down to an optical magnitude limit of i_mod < 20.5 in Sloan Digital Sky Survey (SDSS) images. Both galaxies and point-like objects are included, and no colour cuts are applied. In collaboration with the WiggleZ and Galaxy And Mass Assembly (GAMA) spectroscopic survey teams, we have obtained new spectra for over 5,000 objects in the LARGESS sample. Combining these new spectra with data from earlier surveys provides spectroscopic data for 12,329 radio sources in the survey area, of which 10,856 have reliable redshifts. 85% of the LARGESS spectroscopic sample are radio AGN (median redshift z = 0.44), and 15% are ne...

  9. Survey of knowledge and attitude about AIDS among six areas

    Institute of Scientific and Technical Information of China (English)

    Guo Xin; Cheng Yi-min; Li Ying; Huang Na; Wu Jun-qing; Ru Xiao-mei

    2005-01-01

    Objective: To explore the circumstances, influencing factors, and the extent of discrimination and prejudice towards AIDS. Methods: This is a cross-sectional study. One county from each of the six provinces was selected. 800 respondents were then chosen from each province through cluster sampling. A closed-ended questionnaire was used to study the demographic characteristics, AIDS knowledge, and related attitudes towards AIDS. Results: In this survey, 3,095 respondents (64.5%) feared AIDS; 66.5% of respondents thought AIDS patients or HIV infectors should be treated separately; 40.1% of respondents thought that AIDS patients or HIV carriers should have been confined in freedom; and 1,497 respondents (31.2%)said that they were not willing to donate to AIDS patients. Discrimination and prejudice towards AIDS among the six regions were different partially (P<0.01). Conclusion: Discrimination and prejudice commonly occur. Gender, characteristics of the registered residence, educational level, and knowledge about AIDS are the main factors related to discrimination and prejudice. Many respondents had prejudice against AIDS, because they were lacking correct knowledge about the transmission ways of AIDS. Among the six regions, discrimination and prejudice were lowest in a region in Henan province and highest in Jiangsu province.

  10. Spitzer-HETDEX Exploratory Large Area (SHELA) Survey

    Science.gov (United States)

    Papovich, Casey; Gebhardt, Karl; Adams, Josh; Behroozi, Peter; Bender, Ralf; Blanc, Guillermo; Ciardullo, Robin; Depoy, Darren; de Jong, Roelof; Drory, Niv; Evans, Neal; Fabricius, Maximilian; Finkelstein, Steven; Gawiser, Eric; Greene, Jenny; Gronwall, Caryl; Hill, Gary; Hopp, Ulrich; Jogee, Shardha; Lacy, Mark; Landriau, Martin; Marshall, Jennifer; Tuttle, Sarah; Somerville, Rachel; Steinmetz, Matthias; Suntzeff, Nicholas; Tran, Kim-Vy; Wechsler, Risa; Wisotzki, Lutz

    2011-05-01

    We propose IRAC imaging of a 28 sq deg field with deep optical imaging lying within the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey. Our goal is to explore the relationship between galaxy stellar mass, dark halo mass, and environment during the important cosmic epoch (redshifts 2deep IRAC and optical imaging in our program will provide a uniquely powerful dataset enabling these goals. Working in blind spectroscopic mode, HETDEX will obtain redshifts in this field for approximately 200,000 galaxies and map out the cosmic web at redshifts 1.9web, representative of field, groups, and proto-clusters. The IRAC data will provide the key missing ingredient by allowing us to measure galaxy stellar masses down to values well below the characteristic mass of the stellar mass function at these redshifts. By combining the IRAC data with the halo mass and local density (environment) measured from clustering statistics in the spectroscopic and associated trained photometric dataset, we will obtain a detailed view of how galaxies grow their stellar mass within different dark matter halos and as a function of environment. Ultimately, this study will advance our understanding of the physical processes that drive the formation of stars in galaxies and the build up of stellar mass over cosmic time. In the spirit of Exploratory programs, SHELA will enable a broad range of scientific explorations beyond our immediate goals by delivering all science products (images, catalogs, spectra, and redshifts) to the public.

  11. Survey monitoring of environmental radioactivity in Chuncheon area

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Ki.; Hwang, Sang Kyu [Chuncheon Regional Radioactivity Monitoring Station, Chuncheon (Korea, Republic of)

    2000-12-15

    Gross beta radioactivities in airborne dust, fallout, precipitation and tap water, and gamma exposure rates have been monitored periodically in 2000 at Chunchon Regional Radioactivity Monitoring Station. The concentrations of radioactive nuclide of {sup 7}Be and {sup 137}Cs on airborne dust, and {sup 7}Be, {sup 40}K and {sup 137}Cs on fallout, precipitation have been analyzed monthly. The {sup 7}Be, {sup 40}K, {sup 137}Cs and {sup 226}Ra etc. concentrations in the 23 foodstuffs(potato, sweet potato, bean sprout, onion, pumpkin, spinach, welsh onion, radish leaves, red pepper, garlic, lettuce, apple, persimmon, orange, pear, grape, mackerel, Alaska pollack, hairtail, squid oyster, baby clam, mussed) and 5 tap water sampled in Youngsoe area of Kangwon-do have also been measured. No significant changes from the previous years have been found in gross beta radioactivities in environmental samples and gamma exposure rates. The concentrations of {sup 7}Be, {sup 40}K, and {sup 137}Cs nuclide in the foodstuffs sampled in Youngseo area are less(or slightly higher in some cases) than the MDA value, except {sup 40}K nuclide. The concentrations of {sup 137}Cs and {sup 226}Ra nuclide in tap water are less(or is slightly higher in one sample) than the MDA value.

  12. Survey monitoring of environmental radioactivity in Chuncheon area

    Energy Technology Data Exchange (ETDEWEB)

    Cha, Moon Hoe.; Hwang, Sang Gyu [Chuncheon Regional Radioactivity Monitoring Station, Chuncheon (Korea, Republic of)

    2003-12-15

    Gross beta radioactivities in airborne dust, fallout, precipitation and tap water, and gamma exposure rates have been monitored periodically in 2003 at Chunchon Regional Radioactivity Monitoring Station. The concentrations of radioactive nuclide of {sup 7}Be and {sup 137} Cs on airborne dust, and {sup 7}Be, {sup 40}K and {sup 137}Cs on fallout, precipitation have been analyzed monthly. The {sup 7}Be, {sup 40}K, {sup 137}Cs etc. concentrations in the 22 foodstuffs(peanut, chestnut, walnut, pine nut acorn, oak mushroom, western mushroom, winter mushroom, oyster mushroom, coffee, green tea, ginseng tea, soils, cereals, vegetable, indicator plant) and 10 tap water sampled in Youngseo area of Kangwon-do have also been measured. No significant changes from the previous years have been found in gross beta radioactivities in environmental samples and gamma exposure rates. The concentrations of {sup 7}Be, {sup 40}K, and {sup 137}Cs nuclide in the foodstuffs sampled in Youngseo area are less(or slightly higher in some cases) than the MDA values, except {sup 40}K nuclide. All the concentrations of {sup 137}Cs nuclides in the water are less than the MDA values.

  13. Survey monitoring of environmental radioactivity in Chuncheon area

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Ki.; Hwang, Sang Kyu [Chuncheon Regional Radioactivity Monitoring Station, Chuncheon (Korea, Republic of)

    2001-12-15

    Gross beta radioactivities in airborne dust, fallout, precipitation and tap water, and gamma exposure rates have been monitored periodically in 2001 at Chunchon Regional Radioactivity Monitoring Station. The concentrations of radioactive nuclide of {sup 7}Be and {sup 137}Cs on airborne dust, and {sup 7}Be, {sup 40}K and {sup 137}Cs on fallout, precipitation have been analyzed monthly. The {sup 7}Be, {sup 40}K, {sup 137}Cs and {sup 226}Ra etc. concentrations in the 23 foodstuffs(potato, sweet potato, bean sprout, onion, pumpkin, spinach, welsh onion, radish leaves, red pepper, garlic, lettuce, apple, persimmon, orange, pear, grape, mackerel, Alaska pollack, hairtail, squid oyster, baby clam, mussel) and 5 tap water sampled in Youngseo area of Kangwon-do have also been measured. No significant changes from the previous years have been found in gross beta radioactivities in environmental samples and gamma exposure rates. The concentrations of {sup 7}Be, {sup 40}K, and {sup 137}Cs nuclide in the foodstuffs sampled in Youngseo area are less(or slightly higher in some cases) than the MDA values, except {sup 40}K nuclide. All the concentrations of {sup 137}Cs and {sup 226}Ra nuclides in the water are less than the MDA values.

  14. Survey monitoring of environmental radioactivity in Chuncheon area

    Energy Technology Data Exchange (ETDEWEB)

    Cha, Moon Hoe.; Hwang, Sang Gyu [Chuncheon Regional Radioactivity Monitoring Station, Chuncheon (Korea, Republic of)

    2002-12-15

    Gross beta radioactivities in airborne dust, fallout, precipitation and tap water, and gamma exposure rates have been monitored periodically in 2002 at Chunchon Regional Radioactivity Monitoring Station. The concentrations of radioactive nuclide of {sup 7}Be and {sup 137}Cs on airborne dust, and {sup 7}Be, {sup 40}K and {sup 137}Cs on fallout, precipitation have been analyzed monthly. The {sup 7}Be, {sup 40}K, {sup 137}Cs etc. concentrations in the 19 foodstuffs(peanut, chestnut, walnut, pine nut acorn, oak mushroom, western mushroom, winter mushroom, oyster mushroom, coffee, green tea, ginseng tea, soils, cereals, vegetable, indicator plant) and 5 tap water sampled in Youngseo area of Kangwon-do have also been measured. No significant changes from the previous years have been found in gross beta radioactivities in environmental samples and gamma exposure rates. The concentrations of {sup 7}Be, {sup 40}K, and {sup 137}Cs nuclide in the foodstuffs sampled in Youngseo area are less(or slightly higher in some cases) than the MDA values, except {sup 40}K nuclide. All the concentrations of {sup 137}Cs nuclides in the water are less than the MDA values.

  15. Survey monitoring of environmental radioactivity in Chuncheon area

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Byung Ki.; Hwang, Sang Kyu [Chuncheon Regional Radioactivity Monitoring Station, Chuncheon (Korea, Republic of)

    1998-01-15

    In 1997, the gross average beta activities measured at Chunchon Regional Monitoring Station are 145.55 {+-} 261.40 mBq/m{sup 3} in airborne after 5 hours, 10.05 {+-} 15.65 mBq/m{sup 3} in airborne after 48 hours, 16.90 {+-} 2.94 MBq/km{sup 2} in fallout for 30 days, 79.5 {+-} 142.7 mBq/L in precipitation, and 34.7 {+-} 24.6 mBq/L in tap water. The gamma exposure rate at the same station is 13.10 {+-} 3.93 {mu}R/h. We find no significant changes in these measurements from the past data, and the artificial radionuclide of {sup 137} Cs in airborne dust, fallout and precipitation are found to be less than the M.D.A. values. The concentrations of {sup 137}Cs and {sup 40}K in the soil sampled at 32 sites throughout Yongseo area in Kangwon-do are in the range between 6.59 {+-} 0.47 Bq/kg.dry to 55.54 {+-} 1.58 Bq/kg.dry and 358.3 {+-} 10.3 Bq/kg.dry to 1157.0 {+-} 22.8 Bq/kg.dry, respectively. The gamma exposure rates at 61 sites in Yongseo area are in the range between 12.03 {+-} 0.63 {mu}R/h to 36.74 {+-} 1.06 {mu}R/h with the average value of 17.03 {+-} 3.98 {mu}R/h. Radioactivities in chinese cabbages sampled at 5 different regions in Yongseo area of Kangwon-do are found to be less than M.D.A. value for {sup 137}Cs and 63.60 - 1.03 Bq/kg for {sup 40}K. The data for rice is currently being analysed, and we expect to get the final results for the rice by the time of publishing this report. The radioactivities in dairy and fish product in Yongseo area are found to be that the average concentrations of {sup 137}Cs are in the range of < M.D.A - 0.03 {+-} 0.01 Bq/L in milk product sampled at 3 different regions in Yongseo area and 0.05 {+-} 0.01 - 0.17 {+-} 0.02 Bq/kg in fishes(hair-tail, marckel and Alaska pollack, etc.) sampled in Chunchon city, and the {sup 40}K concentrations are 36.48 {+-} 0.63 - 44.45 {+-} 0.77 Bq/L in the milk samples and 16.26 {+-} 0.34 - 99.44 {+-} 1.60 Bq/kg in the fish samples.

  16. [2011 after-service customer satisfaction survey of monitoring devices in Shanghai area].

    Science.gov (United States)

    Wang, Lijun; Li, Bin; Qian, Jianguo; Cao, Shaoping; He, Dehua; Zheng, Yunxin

    2013-01-01

    In 2011, Shanghai Medical Equipment Management Quality Control Center launched the fifth after-sale service satisfaction survey for medical devices in Shanghai area. There are 8 classes medical devices involving in the survey. This paper demonstrates the investigation results of monitoring devices which are from different manufacturers.

  17. The European Large-Area ISO Survey (ELAIS): the final band-merged catalogue

    DEFF Research Database (Denmark)

    Rowan-Robinson, M.; Lari, C.; Perez-Fournon, I.

    2004-01-01

    We present the final band-merged European Large-Area ISO Survey (ELAIS) Catalogue at 6.7, 15, 90 and 175 mum, and the associated data at U, g', r', i', Z, J, H, K and 20 cm. The origin of the survey, infrared and radio observations, data-reduction and optical identifications are briefly reviewed...

  18. The European Large-Area ISO Survey (ELAIS) : the final band-merged catalogue

    NARCIS (Netherlands)

    Rowan-Robinson, M; Lari, C; Perez-Fournon, [No Value; Gonzalez-Solares, EA; La Franca, F; Vaccari, M; Oliver, S; Gruppioni, C; Ciliegi, P; Heraudeau, P; Serjeant, S; Efstathiou, A; Babbedge, T; Matute, [No Value; Pozzi, F; Franceschini, A; Vaisanen, P; Afonso-Luis, A; Alexander, DM; Almaini, O; Baker, AC; Basilakos, S; Barden, M; del Burgo, C; Bellas-Velidis, [No Value; Cabrera-Guerra, F; Carballo, R; Cesarsky, CJ; Clements, DL; Crockett, H; Danese, L; Dapergolas, A; Drolias, B; Eaton, N; Egami, E; Elbaz, D; Fadda, D; Fox, M; Genzel, R; Goldschmidt, P; Gonzalez-Serrano, JI; Graham, M; Granato, GL; Hatziminaoglou, E; Herbstmeier, U; Joshi, M; Kontizas, E; Kontizas, M; Kotilainen, JK; Kunze, D; Lawrence, A; Lemke, D; Linden-Vornle, MJD; Mann, RG; Marquez, [No Value; Masegosa, J; McMahon, RG; Miley, G; Missoulis, [No Value; Mobasher, B; Morel, T; Norgaard-Nielsen, H; Omont, A; Papadopoulos, P; Puget, JL; Rigopoulou, D; Rocca-Volmerange, B; Sedgwick, N; Silva, L; Sumner, T; Surace, C; Vila-Vilaro, B; Verma, A; Vigroux, L; Villar-Martin, M; Willott, CJ; Carraminana, A; Mujica, R; van der Werf, Paul P.

    2004-01-01

    We present the final band-merged European Large-Area ISO Survey (ELAIS) Catalogue at 6.7, 15, 90 and 175 mum, and the associated data at U, g', r', i', Z, J, H, K and 20 cm. The origin of the survey, infrared and radio observations, data-reduction and optical identifications are briefly reviewed, an

  19. Bird, mammal, and vegetation community surveys of research natural areas in the Tongass National Forest.

    Science.gov (United States)

    W.P. Smith; M.J. Stotts; B.A. Andres; J.M. Melton; A. Garibaldi; K. Boggs

    2001-01-01

    In June 1977, we surveyed seven research natural areas (RNAs) in the Tongass National Forest (Tongass). We documented the composition of biotic communities using rare plant and tidal community surveys, targeted searches for rare animals, and samples of permanent vegetation plots. Birds were sampled once along each transect with 10-minute point counts at stations 8...

  20. Selected Lake Elevation Survey within 1002 Area of the Arctic National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This project, located in the 1002 Area of the Arctic National Wildlife Refuge, was a global positioning survey to obtain latitude, longitude, and ellipsoid height of...

  1. Aquatic plant and waterfowl habitat survey, 1988 : Stillwater Wildlife Management Area and vicinity

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Aquatic vegetation surveys were conducted on Stillwater Wildlife Management Area, Canvasback Club, Carson Lake, and several other wetlands in Lahontan Valley,...

  2. Aerial Surveys of Birds and Mammals in Potential Development Areas in Upper Cook Inlet, Alaska

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Distribution and abundance of waterbirds, marine mammals, and other wildlife were surveyed by helicopter in coastal areas of upper Cook Inlet 13-14 July 1993, in...

  3. Improving the design of amphibian surveys using soil data: A case study in two wilderness areas

    Science.gov (United States)

    Bowen, K.D.; Beever, E.A.; Gafvert, U.B.

    2009-01-01

    Amphibian populations are known, or thought to be, declining worldwide. Although protected natural areas may act as reservoirs of biological integrity and serve as benchmarks for comparison with unprotected areas, they are not immune from population declines and extinctions and should be monitored. Unfortunately, identifying survey sites and performing long-term fieldwork within such (often remote) areas involves a special set of problems. We used the USDA Natural Resource Conservation Service Soil Survey Geographic (SSURGO) Database to identify, a priori, potential habitat for aquatic-breeding amphibians on North and South Manitou Islands, Sleeping Bear Dunes National Lakeshore, Michigan, and compared the results to those obtained using National Wetland Inventory (NWI) data. The SSURGO approach identified more target sites for surveys than the NWI approach, and it identified more small and ephemeral wetlands. Field surveys used a combination of daytime call surveys, night-time call surveys, and perimeter surveys. We found that sites that would not have been identified with NWI data often contained amphibians and, in one case, contained wetland-breeding species that would not have been found using NWI data. Our technique allows for easy a priori identification of numerous survey sites that might not be identified using other sources of spatial information. We recognize, however, that the most effective site identification and survey techniques will likely use a combination of methods in addition to those described here.

  4. Survey monitoring of environmental radioactivity in Gangneung area

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Hwa; An, Mi Jung [Gangnung Regional Radiation Monitoring Station, Gangneung (Korea, Republic of)

    2003-12-15

    The objectives of the project are to get a systematic data for the distribution of environmental radioactivity levels in Gangnung provinces, and use them as a baseline data for the health of the peoples. To monitor the environmental radiation/radioactivity, gross beta activities and gamma exposure rate in the airborne-dust, fallout, precipitation and tap water were measured in Gangnung province during the period of January 1 - December 31, 2003. Waters from drinking water reservoirs, agricultural and marine products were sampled and measured by the HPGe(High Purity Ge)detector for the analysis from some selected areas to make sure of the effect of the fallout due to the atmospheric weapons test. The radioactivity in Kangnung was all about the past data.

  5. Survey monitoring of environmental radioactivity in Daegu area

    Energy Technology Data Exchange (ETDEWEB)

    Kang, H. D.; Lee, S. Y. [Kyungpook National Univ., Daegu (Korea, Republic of)

    1998-01-15

    The objectives of the project are to monitor an abnormal radiation level in Taegu and Kyungpook region, and to enhance our ability to prepare for the radiological emergency situation by establishing the radioactivity monitoring system in Taegu and Kyungpook region. Gross beta activities were measured and gamma radionuclides were analysed for the environmental samples of air-borned dust. precipitation. fallout and drinking water collected in Taegu radioactivity monitoring center. and gamma exposure rates were also measured. To establish the basic data base on the environmental radioactivity, gamma radionuclide analyses were carried out for the samples of soil, drinking water, grain, vegetable, milk, and fish which were obtained from 31 different areas, and the spatial gamma exposure rates from 61 different points were also measured in Taegu and Kyungpook region. In conclusion, it didn't appear any evidence for newly pollution of artificial radioactivity in Taegu and Kyungpook region.

  6. Survey monitoring of environmental radioactivity in Gangneung area

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae Hwa; An, Mi Jung [Gangnung Regional Radiation Monitoring Station, Gangneung (Korea, Republic of)

    2002-12-15

    The objectives of the project are to get a systematic data for the distribution of environmental radioactivity levels in Gangnung provinces, and use them as a baseline data for the health of the peoples. To monitor the environmental radiation/radioactivity, gross beta activities and gamma exposure rate in the airborne-dust, fallout, precipitation and tap water were measured in Kangnung province during the period of January 1- December 31, 2002. Waters from drinking water reservoirs, agricultural and marine products were sampled and measured by the HPGe(High Purity Ge)detector for the analysis from some selected areas to make sure of the effect of the fallout due to the atmospheric weapons test. The radioactivity in Kangnung was all about the past data.

  7. Snake bites in Kenya: a preliminary survey of four areas.

    Science.gov (United States)

    Coombs, M D; Dunachie, S J; Brooker, S; Haynes, J; Church, J; Warrell, D A

    1997-01-01

    Primary data were collected on the incidence, severity and species responsible for snake bites in 4 areas of Kenya: (i) Kakamega and western Kenya, (ii) Lake Baringo and Laikipia, (iii) Kilifi and Malindi, and (iv) northern Kenya. The overall average frequency of snake bite was 13.8 per 100,000 population per year (range 1.9-67.9). The minimum rate of snake bite mortality was 0.45/100,000/year. Thirty-four of the 50 units visited reported no knowledge of death from snake bite in the last 5 years. Possible reasons for the low estimates are discussed. Traditional treatments were common, especially the use of herbal remedies and incisions at the wound site.

  8. Survey of Legionella spp. in Mud Spring Recreation Area

    Science.gov (United States)

    Hsu, B.-M.; Ma, P.-H.; Su, I.-Z.; Chen, N.-S.

    2009-04-01

    Legionella genera are parasites of FLA, and intracellular bacterial replication within the FLA plays a major role in the transmission of disease. At least 13 FLA species—including Acanthamoeba spp., Naegleria spp., and Hartmannella spp.—support intracellular bacterial replication. In the study, Legionellae were detected with microbial culture or by direct DNA extraction and analysis from concentrated water samples or cultured free-living amoebae, combined with molecular methods that allow the taxonomic identification of these pathogens. The water samples were taken from a mud spring recreation area located in a mud-rock-formation area in southern Taiwan. Legionella were detected in 15 of the 34 samples (44.1%). Four of the 34 samples analyzed by Legionella culture were positive for Legionella, five of 34 were positive for Legionella when analyzed by direct DNA extraction and analysis, and 11 of 34 were positive for amoebae-resistant Legionella when analyzed by FLA culture. Ten samples were shown to be positive for Legionella by one analysis method and five samples were shown to be positive by two analysis methods. However, Legionella was detected in no sample by all three analysis methods. This suggests that the three analysis methods should be used together to detect Legionella in aquatic environments. In this study, L. pneumophila serotype 6 coexisted with A. polyphaga, and two uncultured Legionella spp. coexisted with either H. vermiformis or N. australiensis. Of the unnamed Legionella genotypes detected in six FLA culture samples, three were closely related to L. waltersii and the other three were closely related to L. pneumophila serotype 6. Legionella pneumophila serotype 6, L. drancourtii, and L. waltersii are noted endosymbionts of FLA and are categorized as pathogenic bacteria. This is significant for human health because these Legionella exist within FLA and thus come into contact with typically immunocompromised people.

  9. Use of ultralight aircraft for material location and road surveys in remote rural areas

    CSIR Research Space (South Africa)

    Jones, DJ

    2006-10-01

    Full Text Available of ultralight aircraft for material location and road surveys in remote rural areas. Proceedings 22nd ARRB Conference: Research into Practice. Canberra, Australia: Australian Road Research Board. (ISBN 1-876592-49-4). 22nd ARRB CONFERENCE... THE USE OF ULTRALIGHT AIRCRAFT FOR MATERIAL LOCATION AND ROAD SURVEYS IN REMOTE RURAL AREAS D JONES Transportek, CSIR. PO Box 395, Pretoria, South Africa, 0001 Tel (+2712) 841-3831. Fax (+2712) 841-3585. email djones@csir.co.za ABSTRACT...

  10. Survey monitoring of environmental radioactivity in Seoul area

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jai Ki.; Chung, Ok Sun [Seoul Monitoring Station, Seoul (Korea, Republic of)

    2000-12-15

    The following results were obtained through the monitoring in 2000 at the Seoul monitoring station: gamma dose rate: 14.6 - 10.6 {mu}R/h, gross beta activity in airborne dust : 224 - 9.80 mBq/m{sup 3}, gross beta activity in precipitation dust : 50.0 - 5.68 MBq/km - 30 days ; gross beta activity in rain and snow : 1267 - 19.0 mBq/L, gross beta activity in tap water : 127 - 26.3 mBq/L. All the monitored variables remained in the corresponding normal ranges, which implies that there were no abnormal situations of environmental radiation in the Seoul region in 2000. Radioactivity contents in foodstuffs consumed in Seoul area were analyzed for use in assessment of population doses via dietary intakes. Natural isotopes {sup 40}K and {sup 7}Be constitute the major radioactivity and {sup 137}Cs is the only man-made isotope detected in some sample.

  11. Airborne Gravimetry Survey for the Marine Area of the United Arab Emirates

    DEFF Research Database (Denmark)

    Forsberg, René; Olesen, Arne Vestergaard; Alshamsi, Adel

    2012-01-01

    The Military Survey Department (MSD) of the United Arab Emirates (UAE) undertook an airborne gravity survey project for the marine area of the country in 2009, especially to strengthen the marine and coastal geoid in the near-shore regions. For the airborne gravity survey, 5 km spacing coast-para...... for the airborne gravity data is better than 2.0 mGal r.m.s., as judged from the airborne track crossovers. The new airborne gravimetry data changed the UAE coastal geoid by up to 30 cm in some regions, highlighting the importance of airborne gravity coastal surveys....

  12. A feasibility study to estimate minimum surface-casing depths of oil and gas wells to prevent ground-water contamination in four areas of western Pennsylvania

    Science.gov (United States)

    Buckwalter, T.F.; Squillace, P.J.

    1995-01-01

    Hydrologic data were evaluated from four areas of western Pennsylvania to estimate the minimum depth of well surface casing needed to prevent contamination of most of the fresh ground-water resources by oil and gas wells. The areas are representative of the different types of oil and gas activities and of the ground-water hydrology of most sections of the Appalachian Plateaus Physiographic Province in western Pennsylvania. Approximate delineation of the base of the fresh ground-water system was attempted by interpreting the following hydrologic data: (1) reports of freshwater and saltwater in oil and gas well-completion reports, (2) water well-completion reports, (3) geophysical logs, and (4) chemical analyses of well water. Because of the poor quality and scarcity of ground-water data, the altitude of the base of the fresh ground-water system in the four study areas cannot be accurately delineated. Consequently, minimum surface-casing depths for oil and gas wells cannot be estimated with confidence. Conscientious and reliable reporting of freshwater and saltwater during drilling of oil and gas wells would expand the existing data base. Reporting of field specific conductance of ground water would greatly enhance the value of the reports of ground water in oil and gas well-completion records. Water-bearing zones in bedrock are controlled mostly by the presence of secondary openings. The vertical and horizontal discontinuity of secondary openings may be responsible, in part, for large differences in altitudes of freshwater zones noted on completion records of adjacent oil and gas wells. In upland and hilltop topographies, maximum depths of fresh ground water are reported from several hundred feet below land surface to slightly more than 1,000 feet, but the few deep reports are not substantiated by results of laboratory analyses of dissolved-solids concentrations. Past and present drillers for shallow oil and gas wells commonly install surface casing to below the

  13. CARMA LARGE AREA STAR FORMATION SURVEY: STRUCTURE AND KINEMATICS OF DENSE GAS IN SERPENS MAIN

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Katherine I.; Storm, Shaye; Mundy, Lee G.; Teuben, Peter; Pound, Marc W.; Salter, Demerese M.; Chen, Che-Yu [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Fernández-López, Manuel; Looney, Leslie W.; Segura-Cox, Dominique [Department of Astronomy, University of Illinois, Urbana-Champaign, IL 61801 (United States); Rosolowsky, Erik [Departments of Physics and Statistics, University of British Columbia, Okanagan Campus, 3333 University Way, Kelowna BC V1V 1V7 (Canada); Arce, Héctor G.; Plunkett, Adele L. [Department of Astronomy, Yale University, PO Box 208101, New Haven, CT 06520-8101 (United States); Ostriker, Eve C. [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States); Shirley, Yancy L. [Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Kwon, Woojin [SRON Netherlands Institute for Space Research, Landleven 12, 9747 AD Groningen (Netherlands); Kauffmann, Jens [Max Planck Institut für Radioastronomie, Auf dem Hügel 69 D-53121, Bonn Germany (Germany); Tobin, John J. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Volgenau, N. H. [Astronomy Department, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Tassis, Konstantinos, E-mail: ijlee9@astro.umd.edu [Department of Physics and Institute of Theoretical and Computational Physics, University of Crete, PO Box 2208, GR-710 03, Heraklion, Crete (Greece); and others

    2014-12-20

    We present observations of N{sub 2}H{sup +} (J = 1 → 0), HCO{sup +} (J = 1 → 0), and HCN (J = 1 → 0) toward the Serpens Main molecular cloud from the CARMA Large Area Star Formation Survey (CLASSy). We mapped 150 arcmin{sup 2} of Serpens Main with an angular resolution of ∼7''. The gas emission is concentrated in two subclusters (the NW and SE subclusters). The SE subcluster has more prominent filamentary structures and more complicated kinematics compared to the NW subcluster. The majority of gas in the two subclusters has subsonic to sonic velocity dispersions. We applied a dendrogram technique with N{sub 2}H{sup +}(1-0) to study the gas structures; the SE subcluster has a higher degree of hierarchy than the NW subcluster. Combining the dendrogram and line fitting analyses reveals two distinct relations: a flat relation between nonthermal velocity dispersion and size, and a positive correlation between variation in velocity centroids and size. The two relations imply a characteristic depth of 0.15 pc for the cloud. Furthermore, we have identified six filaments in the SE subcluster. These filaments have lengths of ∼0.2 pc and widths of ∼0.03 pc, which is smaller than a characteristic width of 0.1 pc suggested by Herschel observations. The filaments can be classified into two types based on their properties. The first type, located in the northeast of the SE subcluster, has larger velocity gradients, smaller masses, and nearly critical mass-per-unit-length ratios. The other type, located in the southwest of the SE subcluster, has the opposite properties. Several YSOs are formed along two filaments which have supercritical mass per unit length ratios, while filaments with nearly critical mass-per-unit-length ratios are not associated with YSOs, suggesting that stars are formed on gravitationally unstable filaments.

  14. 5 CFR Appendix C to Subpart B of... - Appropriated Fund Wage and Survey Areas

    Science.gov (United States)

    2010-01-01

    ... Highlands Martin Monroe Okeechobee Palm Beach St. Lucie Panama City Survey Area Florida: Bay Gulf Area of... San Bernardino County except that portion occupied by, and south and west of, the Angeles and San... Bernardino (Only that portion occupied by, and south and west of the Angeles and San Bernardino...

  15. The Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS): survey design, data catalogue and GAMA/WiggleZ spectroscopy

    Science.gov (United States)

    Ching, John H. Y.; Sadler, Elaine M.; Croom, Scott M.; Johnston, Helen M.; Pracy, Michael B.; Couch, Warrick J.; Hopkins, A. M.; Jurek, Russell J.; Pimbblet, K. A.

    2017-01-01

    We present the Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS), a spectroscopic catalogue of radio sources designed to include the full range of radio AGN populations out to redshift z ˜ 0.8. The catalogue covers ˜800 deg2 of sky, and provides optical identifications for 19 179 radio sources from the 1.4 GHz Faint Images of the Radio Sky at Twenty-cm (FIRST) survey down to an optical magnitude limit of imod teams, we have obtained new spectra for over 5000 objects in the LARGESS sample. Combining these new spectra with data from earlier surveys provides spectroscopic data for 12 329 radio sources in the survey area, of which 10 856 have reliable redshifts. 85 per cent of the LARGESS spectroscopic sample are radio AGN (median redshift z = 0.44), and 15 per cent are nearby star-forming galaxies (median z = 0.08). Low-excitation radio galaxies (LERGs) comprise the majority (83 per cent) of LARGESS radio AGN at z formation as well as a classical accretion disc.

  16. Depth-to-water area polygons, isopleths showing mean annual runoff, 1912-1963, and water-level altitude contours for the Humboldt River Basin, Nevada

    Science.gov (United States)

    Welborn, Toby L.; Medina, Rose L.

    2017-01-01

    This USGS data release represents the 1:500,000-scale geospatial data for the following publication:Eakin, T.E., and Lamke, R.D., 1966, Hydrologic reconnaissance of the Humboldt River basin, Nevada: Nevada Department of Conservation and Natural Resources, Water Resources Bulletin 32, 107 p.The data set consists of 3 separate items:1. Depth-to-water area polygons2. Isopleths showing mean annual runoff, 1912-19633. Water-level altitude contours

  17. Literature survey of blast and fire effects of nuclear weapons on urban areas

    Energy Technology Data Exchange (ETDEWEB)

    Reitter, T.A.; McCallen, D.B.; Kang, S.W.

    1982-06-01

    The American literature of the past 30 years on fire and blast effects of nuclear weapons on urban areas has been surveyed. The relevant work is briefly sketched and areas where information is apparently lacking are noted. This report is intended to provide the basis for suggesting research priorities in the fire and blast effects area for the Federal Emergency Management Agency. It is also intended to provide entry into the literature for researchers. over 850 references are given.

  18. Spring Bottom Trawl Survey

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The standardized NEFSC Spring Bottom Trawl Survey was initiated in 1968 and covered an area from Cape Hatteras, NC, to Nova Scotia, Canada, at depths >27m....

  19. Bipole-dipole survey at Roosevelt Hot Springs, Thermal Area, Beaver County, Utah

    Energy Technology Data Exchange (ETDEWEB)

    Frangos, W.; Ward, S.H.

    1980-09-01

    A bipole-dipole electrical resistivity survey at Roosevelt Hot Springs thermal area, Beaver County, Utah was undertaken to evaluate the technique in a well-studied Basin and Range geothermal prospect. The major electrical characteristics of the area are clearly revealed but are not particularly descriptive of the geothermal system. More subtle variations of electrical resistivity accompanying the geothermal activity are detectable, although the influence of near-surface lateral resistivity variations imposes upon the survey design the necessity of a high station density. A useful practical step is to conduct a survey using transmitter locations and orientations which minimize the response of known features such as the resistivity boundary due to a range front fault. Survey results illustrate the effects of transmitter orientation and placement, and of subtle lateral resistivity variations. A known near-surface conductive zone is detected while no evidence is found for a deep conductive region.

  20. Linking snow depth to avalanche release area size: measurements from the Vallée de la Sionne field site

    OpenAIRE

    2016-01-01

    One of the major challenges in avalanche hazard assessment is the correct estimation of avalanche release area size, which is of crucial importance to evaluate the potential danger that avalanches pose to roads, railways or infrastructure. Terrain analysis plays an important role in assessing the potential size of avalanche releases areas and is commonly based on digital terrain models (DTMs) of a snow-free summer terrain. However, a snow-covered winter terrain can significa...

  1. First Results of AMP surveys for large areas (>100ha) with decimeter resolutions in Archaeology

    Science.gov (United States)

    Dabas, Michel

    2010-05-01

    The work presented here takes place within the BREBEMI project which is a motorway project between the town of Milano and Brescia in Italy. For the first time, a set of non-invasive tools is used systematically in order to prevent the archaeological risk before the construction of a motorway. This innovative project relies both on: - the systematic use of a GIS (Geographical Information System) for integration of all data at every stage of the project (from data acquisition in the field to interpretation and field check), - the use of new continuous high productivity geophysical techniques able to survey several hectares a day with a resolution of a few decimetres (resistivity:ARP(c) and magnetics: AMP), and aerial LIDAR data (acquisition of Digital Elevation Model). - the integration of all different sources of information (geophysics, aerial photos, documentation, historical evidences but also field truething of anomalies) For the first time all these techniques are not only used at the level of the site, but also at the level of the landscape. The objectives of this project is to reduce to a maximum the uncertainty linked to the presence of archaeological remains (in particular delimitation of areas not to be excavated due to both positive and/or negative archaeological artefacts). In the presentation we will focus on geophysics. We have combined the use of continuous electrical imaging techniques (ARP(c)) and continuous magnetic imaging techniques(AMP, Geocarta, Paris). The first method enables measurement of apparent electrical resistivity for 3 depths of investigation at the same time. The AMP method enables the measurement of magnetic vertical gradient of the Earth Magnetic Field. All data are acquired with Quad bykes-towed instruments controlled in real-time with a GIS software: sampling mesh is of the order of a few centimetres in-line and 50cm across lines. No external topography is done and all profiles are computed by the GIS and a differential GPS for

  2. Seismic reflection survey in Omama fan area, Gunma prefecture; Gunma Omama senjochi ni okeru hanshaho jishin tansa

    Energy Technology Data Exchange (ETDEWEB)

    Yamaguchi, K.; Kano, N.; Yokokura, T.; Kiguchi, T.; Yokota, T.; Matsushima, J. [Geological Survey of Japan, Tsukuba (Japan)

    1996-10-01

    Seismic reflection survey was performed for the Medial Tectonic Line, an important geological tectonic line in the Kanto plains, at Kushibiki district, Saitama prefecture in the north-western part of the Kanto plains. It was estimated that movements of the basement were different in the individual sides of the active fault. In this study, the seismic reflection survey was performed at the Omama fan area, Gunma prefecture, which is located at the north-eastern extension of the Kushibiki plateau, to grasp the structure of basement to the depth of about 1.0 s of return travel time, and the upper sediments. Two traverse lines passing Ota city, Kiryu city, and Nitta town were used. Southern part of the traverse line-1 was in the bottom land in the middle of Tone river, and northern part was in the Omama fan area. The ground surface along the traverse line was flat. Hachioji heights are the heights elongating in the NW-SE direction and having relative height of 100 to 200 m against the surrounding plain. Another traverse line-2 was set on the steep slope having relative height more than 100 m. The Brute stack time section of each traverse line was characterized by the gradient reflection surface AA of the traverse line-1. It was suggested that the AA or intermittent parts of reflection surfaces deeper than AA may relate to the tectonic lines in the more ancient geological ages. 2 figs., 1 tab.

  3. High-resolution gravity and seismic-refraction surveys of the Smoke Tree Wash area, Joshua Tree National Park, California

    Science.gov (United States)

    Langenheim, Victoria E.; Rymer, Michael J.; Catchings, Rufus D.; Goldman, Mark R.; Watt, Janet T.; Powell, Robert E.; Matti, Jonathan C.

    2016-03-02

    We describe high-resolution gravity and seismic refraction surveys acquired to determine the thickness of valley-fill deposits and to delineate geologic structures that might influence groundwater flow beneath the Smoke Tree Wash area in Joshua Tree National Park. These surveys identified a sedimentary basin that is fault-controlled. A profile across the Smoke Tree Wash fault zone reveals low gravity values and seismic velocities that coincide with a mapped strand of the Smoke Tree Wash fault. Modeling of the gravity data reveals a basin about 2–2.5 km long and 1 km wide that is roughly centered on this mapped strand, and bounded by inferred faults. According to the gravity model the deepest part of the basin is about 270 m, but this area coincides with low velocities that are not characteristic of typical basement complex rocks. Most likely, the density contrast assumed in the inversion is too high or the uncharacteristically low velocities represent highly fractured or weathered basement rocks, or both. A longer seismic profile extending onto basement outcrops would help differentiate which scenario is more accurate. The seismic velocities also determine the depth to water table along the profile to be about 40–60 m, consistent with water levels measured in water wells near the northern end of the profile.

  4. Seismic stability of the survey areas of potential sites for the deep geological repository of the spent nuclear fuel

    Science.gov (United States)

    Kaláb, Zdeněk; Šílený, Jan; Lednická, Markéta

    2017-07-01

    This paper deals with the seismic stability of the survey areas of potential sites for the deep geological repository of the spent nuclear fuel in the Czech Republic. The basic source of data for historical earthquakes up to 1990 was the seismic website [10]. The most intense earthquake described occurred on September 15, 1590 in the Niederroesterreich region (Austria) in the historical period; its reported intensity is Io = 8-9. The source of the contemporary seismic data for the period since 1991 to the end of 2014 was the website [11]. It may be stated based on the databases and literature review that in the period from 1900, no earthquake exceeding magnitude 5.1 originated in the territory of the Czech Republic. In order to evaluate seismicity and to assess the impact of seismic effects at depths of hypothetical deep geological repository for the next time period, the neo-deterministic method was selected as an extension of the probabilistic method. Each one out of the seven survey areas were assessed by the neo-deterministic evaluation of the seismic wave-field excited by selected individual events and determining the maximum loading. Results of seismological databases studies and neo-deterministic analysis of Čihadlo locality are presented.

  5. The ALFALFA HI Absorption Pilot Survey: A Wide-Area Blind Damped Lyman Alpha System Survey of the Local Universe

    CERN Document Server

    Darling, Jeremy; Haynes, Martha P; Giovanelli, Riccardo

    2011-01-01

    We present the results of a pilot survey for neutral hydrogen (HI) 21 cm absorption in the Arecibo Legacy Fast Arecibo L-Band Feed Array (ALFALFA) Survey. This project is a wide-area "blind" search for HI absorption in the local universe, spanning -650 km/s = 2x10^20 cm^-2) is Delta z = 7.0 (129 objects, assuming T_s = 100 K and covering fraction unity); for super-DLAs (N_HI >= 2x10^21 cm^-2) it is Delta z= 128.2 (2353 objects). We re-detect the intrinsic HI absorption line in UGC 6081 but detect no intervening absorption line systems. We compute a 95% confidence upper limit on the column density frequency distribution function f(N_HI,X) spanning four orders of magnitude in column density, 10^19 (T_s/100 K)(1/f) cm^-2 < N_HI < 10^23 (T_s/100 K)(1/f) cm^-2, that is consistent with previous redshifted optical damped Ly alpha surveys and the aggregate HI 21 cm emission in the local universe. The detection rate is in agreement with extant observations. This pilot survey suggests that an absorption line sear...

  6. The 14 August 1708 Manosque, France earthquake: new constraintson the damage area from in-depth historical studies

    Directory of Open Access Journals (Sweden)

    A. Levret

    2004-06-01

    Full Text Available In this paper, we re-evaluate the damage area of the 14 August 1708 Manosque earthquake, Southeast France. It is the strongest event (Io = VIII MSK of a seismic sequence that lasted from March to October 1708. We show that the spatial repartition of the damage that can be proposed based on the existing sources, is clearly biased by the abundant narrative information concerning Manosque. This sparseness in the information can be attributed to differences in communication routes or strategies between the different localities, and affects the global perception of the event, especially in the rural area. To tackle this bias, we propose to inventory the building repairs reported in non-narrative sources in order to capture the effects of the Manosque earthquake in the surrounding region. The debates and accounts (between mid-1708 and 1710 show that moderate to heavy repairs consistently affect localities in the epicentral area, covering a region of at least 12 km radius around Manosque. These building repairs, indirectly attesting to earthquake damage, provide valuable and complementary information, which resulted in a better knowledge of this event. In particular, we propose new intensity estimates (I >VI at six localities.

  7. The Wide-Area X-ray Survey in the Legacy Stripe 82 Field

    Science.gov (United States)

    LaMassa, S.; Urry, M.; Cappelluti, N.; Comastri, A.; Glikman, E.; Richards, G.; B"ohringer, H.

    2016-06-01

    We are carrying out a wide-area X-ray survey in the Sloan Digital Sky Survey Stripe 82 field to uncover how luminous, obscured AGN evolve over cosmic time and the role they play in galaxy evolution. Stripe 82 is a legacy field with a high level of spectroscopic completeness and rich multi-wavelength coverage from the ultraviolet to far-infrared, including Spitzer and Herschel imaging. Our Stripe 82X survey currently reaches 31 deg^{2}, with ˜6200 X-ray point sources detected at ≥5σ level. I will review the characteristics of this survey, on-going programs to target obscured AGN candidates, and how we can use the lessons learned from the synergistic multi-wavelength coverage to develop strategic plans for future surveys and missions. Finally, I will comment on how extending the Stripe 82X survey area to 100 deg^{2} will provide unprecedented insight into the high-L (Lx > 10^{45} erg/s), high-z (z > 2) AGN population.

  8. Survey of Forensic Document Examination Habit Areas: Degree of Use and Discriminatory Power

    Energy Technology Data Exchange (ETDEWEB)

    G Sperry; PA Manzolillo; RC Hanlan; RJ Muehlberger

    1999-09-07

    Beginning in 1998, the Pacific Northwest National Laboratory (PNL), US Postal Inspection Service Forensic Laboratory (USPIS), and the Data Fusion Laboratory, Drexel University (DFL) have been collaborating on a large scale research project ''Handwriting Individuality--Moving From Art to Science''. In April 1998 a survey was distributed to the community of forensic document examiners (FDEs) requesting input on the habit areas used and their utility in distinguishing handwriting. The information obtained from this survey was intended to provide the data necessary to select the criteria and begin the evaluation of the handwriting samples currently in the project. Preliminary results of the survey were made available to the community at the American Society of Questioned Document Examiners (ASQDE) meeting in August 1998 and the American Academy of Forensic Sciences (AAFS) meeting in February 1999. This report provides final documentation of the survey and its results. This survey has two objectives: (1) to compile a list of handwriting features and characteristics used by professional forensic document examiners in the examination and comparison of handwriting and (2) to gather information about the significance of these features and characteristics. These objectives are met by having the FDEs provide an indication of their experience in the frequency of habit area evaluation and the utility of the habit area for discrimination.

  9. Colorado Canyons National Conservation Area 2003 visitor use survey: Completion report

    Science.gov (United States)

    Ponds, Phadrea; Gillette, Shana C.; Koontz, Lynne

    2004-01-01

    This report represents the analysis of research conducted by the U.S. Geological Survey (USGS) for the Bureau of Land Management (BLM). The purpose is to provide socio-economic and recreational use information that can be used in the development of a Resource Management Plan (RMP) for the Colorado Canyons National Conservation Area (CCNCA). The results reported here deal primarily with recreation-based activities in four areas: Kokopelli Loops, Rabbit Valley, Loma Boat Launch, and Devil’s Canyon.

  10. Forsmark site investigation. Detailed ground magnetic survey and lineament interpretation in the Forsmark area, 2006-2007

    Energy Technology Data Exchange (ETDEWEB)

    Isaksson, Hans; Thunehed, Hans; Pitkaenen, Timo; Keisu, Mikael (GeoVista AB, Luleaa (SE))

    2007-12-15

    . The fold is U-shaped and opens to the southeast. Within the fold the magnetic pattern is more varied with gently banded to more irregular patterns and from low to high magnetic intensity. The fold pattern is most prominent in the Asphaellsfjaerden area but is also repeated recurrently from northwest to the southeast. The area between Bolundsfjaerden and the road to drill site DS6 forms the core of the fold structure with a more irregular magnetic pattern. Northeast of the SFR office the pattern is characterised by a broad, southeast-northwest trending magnetic low, coincident with the Singoe deformation zone. The low magnetic relief give less information on the structural pattern within this area. Further northeast of this structure and in the area around the SFR underground facilities, the magnetic pattern is less regular and gently folded, indicating a varying and complex folding pattern. The interpretation of the magnetic data has been directed towards identification of linear features but also a few areas with very low magnetisation and low magnetic relief has been outlined. Destruction of ferromagnetic minerals is a probable cause; however, the origin of these features is uncertain and would require further investigations. Areas with a diffuse magnetic pattern might indicate larger depth to the magnetic source or occurrences of fractured and/or altered bedrock surface. Narrow, low magnetic linear features occurring concordant with the general bedrock foliation are difficult to determine as related to fracture zones or to rock types with low magnetization. In this work, these linear features are identified as lineaments with a separate character called 'minima connections'. From all detailed magnetic surveys a total of 1,855 magnetic lineaments have been identified of which 811 are characterized as 'minima connections', 380 and 733 magnetic lineaments have a low and high uncertainty, respectively. The lineaments are graded in low, medium and

  11. An aerial radiological survey of the project Rio Blanco and surrounding area

    Energy Technology Data Exchange (ETDEWEB)

    Singman, L.V.

    1994-11-01

    A team from the Remote Sensing Laboratory in Las Vegas, Nevada, conducted an aerial radiation survey of the area surrounding ground zero of Project Rio Blanco in the northwestern section of Colorado in June 1993. The object of the survey was to determine if there were man-made radioisotopes on or near the surface resulting from a nuclear explosion in 1972. No indications of surface contamination were found. A search for the cesium-137 radioisotope was negative. The Minimum Detectable Activity for cesium-137 is presented for several detection probabilities. The natural terrestrial exposure rates in units of Roentgens per hour were mapped and are presented in the form of a contour map over-laid on an aerial photograph. A second team made independent ground-based measurements in four places within the survey area. The average agreement of the ground-based with aerial measurements was six percent.

  12. Detailed gravity and aeromagnetic surveys in the Black Rock Desert Area, Utah. Topical report

    Energy Technology Data Exchange (ETDEWEB)

    Serpa, L.F.; Cook, K.L.

    1980-01-01

    Aeromagnetic and gravity surveys were conducted during 1978 in the Black Rock Desert, Utah over an area of about 2400 km/sup 2/ between the north-trending Pavant and Cricket Mountains. The surveys assisted in evaluating the geothermal resources in the Meadow-Hatton Known Geothermal Resource Area (KGRA) and vicinity by delineating geophysical characteristics of the subsurface. The gravity measurements from approximately 700 new stations were reduced to complete Bouguer gravity anomaly values with the aid of a computerized terrain-correction program and contoured at an interval of 1 milligal. The aeromagnetic survey was drape flown at an altitude of 305 m (1000 ft) and a total intensity residual aeromagnetic map with a contour interval of 20 gammas was produced. Two gravity and aeromagnetic east-west profiles and one north-south profile were modeled using a simultaneous 2 1/2-dimensional modeling technique to provide a single model satisfying both types of geophysical data.

  13. Results of geophysical survey on Hanaore-fault in the Kyoto urban area; Butsuri tansa ni yoru Kyoto shigaichi ni okeru Hanaore danso chosa

    Energy Technology Data Exchange (ETDEWEB)

    Yoshioka, T. [Geological Survey of Japan, Tsukuba (Japan); Echigo, T. [Osaka Soil Test, Osaka (Japan); Toshioka, T.; Matsubara, Y. [Oyo Corp., Tokyo (Japan)

    1997-05-27

    This paper reports results of gravity survey and seismic survey using the shallow bed reflection method to identify distribution of the Hanaore fault in the Kyoto urban area. In the gravity survey, level differential structure caused by the fault was identified as an abrupt change in Bouger anomalous values. The continuity therefrom made the estimation possible on existence and positions of such faults as the Hanaore fault belonging to the Hanaore fault system, the Shishigaya fault, the Kaguraoka fault, and the Okazaki fault. The estimation as a result of the gravity survey include the following findings: the Hanaore fault runs from south of the Yoshidayama in the south-north direction; the distribution of the Okazaki fault has a level differential structure falling on the east side; the structure shows low Bouger anomaly distribution; and this area forms a rift valley belt. In the seismic survey using the shallow bed reflection method, no distinct reflection plane considered as the basement was verified because of influence from urban area noise. However, it was possible to estimate such an underground structure as a monoclinal fold from shapes of the reflection plane and the distribution depths. 7 refs., 5 figs.

  14. EV Charging Analysis Based on the National Travel Surveys of the Nordic Area

    DEFF Research Database (Denmark)

    Liu, Zhaoxi; Wu, Qiuwei

    2014-01-01

    This paper presents the charging demand profiles of electric vehicles (EVs) based on the National Travel Surveys of the Nordic area. The EV charging analysis is carried out considering different types of charging patterns which are dumb charging, timed charging and spot price based charging...

  15. 75 FR 17316 - Prevailing Rate Systems; Nonappropriated Fund Wage and Survey Areas

    Science.gov (United States)

    2010-04-06

    ...: Oregon: Clatsop Coos Douglas Multnomah Tillamook Washington: Clark Grays Harbor Snohomish Survey Area... Management, Room 7H31, 1900 E Street, NW., Washington, DC 20415-8200; e-mail pay-performance-policy@opm.gov... printing errors, inconsistencies, and omissions are listed below. Yuma, AZ We would delete Yuma County,...

  16. CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release

    NARCIS (Netherlands)

    García-Benito, R.; Zibetti, S.; Sánchez, S. F.; Husemann, B.; de Amorim, A. L.; Castillo-Morales, A.; Cid Fernandes, R.; Ellis, S. C.; Falcón-Barroso, J.; Galbany, L.; Gil de Paz, A.; González Delgado, R. M.; Lacerda, E. A. D.; López-Fernandez, R.; de Lorenzo-Cáceres, A.; Lyubenova, M.; Marino, R. A.; Mast, D.; Mendoza, M. A.; Pérez, E.; Vale Asari, N.; Aguerri, J. A. L.; Ascasibar, Y.; Bekerait*error*ė, S.; Bland-Hawthorn, J.; Barrera-Ballesteros, J. K.; Bomans, D. J.; Cano-Díaz, M.; Catalán-Torrecilla, C.; Cortijo, C.; Delgado-Inglada, G.; Demleitner, M.; Dettmar, R.-J.; Díaz, A. I.; Florido, E.; Gallazzi, A.; García-Lorenzo, B.; Gomes, J. M.; Holmes, L.; Iglesias-Páramo, J.; Jahnke, K.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; López-Sánchez, Á. R.; Márquez, I.; Masegosa, J.; Meidt, S. E.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Morisset, C.; del Olmo, A.; Papaderos, P.; Pérez, I.; Quirrenbach, A.; Rosales-Ortega, F. F.; Roth, M. M.; Ruiz-Lara, T.; Sánchez-Blázquez, P.; Sánchez-Menguiano, L.; Singh, R.; Spekkens, K.; Stanishev, V.; Torres-Papaqui, J. P.; van de Ven, G.; Vilchez, J. M.; Walcher, C. J.; Wild, V.; Wisotzki, L.; Ziegler, B.; Alves, J.; Barrado, D.; Quintana, J. M.; Aceituno, J.

    2015-01-01

    This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS/PPak mount

  17. CALIFA, the Calar Alto Legacy Integral Field Area survey. II. First public data release

    NARCIS (Netherlands)

    Husemann, B.; Jahnke, K.; Sánchez, S. F.; Barrado, D.; Bekerait*error*ė, S.; Bomans, D. J.; Castillo-Morales, A.; Catalán-Torrecilla, C.; Cid Fernandes, R.; Falcón-Barroso, J.; García-Benito, R.; González Delgado, R. M.; Iglesias-Páramo, J.; Johnson, B. D.; Kupko, D.; López-Fernandez, R.; Lyubenova, M.; Marino, R. A.; Mast, D.; Miskolczi, A.; Monreal-Ibero, A.; Gil de Paz, A.; Pérez, E.; Pérez, I.; Rosales-Ortega, F. F.; Ruiz-Lara, T.; Schilling, U.; van de Ven, G.; Walcher, J.; Alves, J.; de Amorim, A. L.; Backsmann, N.; Barrera-Ballesteros, J. K.; Bland-Hawthorn, J.; Cortijo, C.; Dettmar, R.-J.; Demleitner, M.; Díaz, A. I.; Enke, H.; Florido, E.; Flores, H.; Galbany, L.; Gallazzi, A.; García-Lorenzo, B.; Gomes, J. M.; Gruel, N.; Haines, T.; Holmes, L.; Jungwiert, B.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; Klar, J.; Lehnert, M. D.; López-Sánchez, Á. R.; de Lorenzo-Cáceres, A.; Mármol-Queraltó, E.; Márquez, I.; Mendez-Abreu, J.; Mollá, M.; del Olmo, A.; Meidt, S. E.; Papaderos, P.; Puschnig, J.; Quirrenbach, A.; Roth, M. M.; Sánchez-Blázquez, P.; Spekkens, K.; Singh, R.; Stanishev, V.; Trager, S. C.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Zibetti, S.; Ziegler, B.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005

  18. Deep far infrared ISOPHOT survey in "Selected Area 57" - I. Observations and source counts

    DEFF Research Database (Denmark)

    Linden-Vornle, M.J.D.; Nørgaard-Nielsen, Hans Ulrik; Jørgensen, H.E.

    2000-01-01

    We present here the results of a deep survey in a 0.4 deg(2) blank field in Selected Area 57 conducted with the ISOPHOT instrument aboard ESAs Infrared Space Observatory (ISO1) at both 60 mu m and 90 mu m. The resulting sky maps have a spatial resolution of 15 x 23 arcsrc(2) per pixel which is much...

  19. A bacteriological survey of an oyster-growing area: The Oualidia Lagoon, Morocco.

    Science.gov (United States)

    Bouchriti, N; El Marrakchi, A; Fahim, A; Goyal, S M

    1992-09-01

    A 3-year bacteriological survey of an oyster-growing area in Morocco, where the Japanese oyster (Crassostrea gigas) is grown, showed that the contamination of this lagunar ecosystem was not continuous but intermittent and that animal manure and human recreational activities were important sources of pollution. The major source of contamination was of animal origin, except during the summer, when human contamination prevailed.

  20. CALIFA, the Calar Alto Legacy Integral Field Area survey : II. First public data release

    NARCIS (Netherlands)

    Husemann, B.; Jahnke, K.; Sanchez, S. F.; Barrado, D.; Bekeraite, S.; Bomans, D. J.; Castillo-Morales, A.; Catalan-Torrecilla, C.; Cid Fernandes, R.; Falcon-Barroso, J.; Garcia-Benito, R.; Gonzalez Delgado, R. M.; Iglesias-Paramo, J.; Johnson, B. D.; Kupko, D.; Lopez-Fernandez, R.; Lyubenova, M.; Marino, R. A.; Mast, D.; Miskolczi, A.; Monreal-Ibero, A.; Gil de Paz, A.; Perez, E.; Perez, I.; Rosales-Ortega, F. F.; Ruiz-Lara, T.; Schilling, U.; van de Ven, G.; Walcher, J.; Alves, J.; de Amorim, A. L.; Backsmann, N.; Barrera-Ballesteros, J. K.; Bland-Hawthorn, J.; Cortijo, C.; Dettmar, R. -J.; Demleitner, M.; Diaz, A. I.; Enke, H.; Florido, E.; Flores, H.; Galbany, L.; Gallazzi, A.; Garcia-Lorenzo, B.; Gomes, J. M.; Gruel, N.; Haines, T.; Holmes, L.; Jungwiert, B.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; Klar, J.; Lehnert, M. D.; Lopez-Sanchez, A. R.; de Lorenzo-Caceres, A.; Marmol-Queralto, E.; Marquez, I.; Mendez-Abreu, J.; Molla, M.; del Olmo, A.; Meidt, S. E.; Papaderos, P.; Puschnig, J.; Quirrenbach, A.; Roth, M. M.; Sanchez-Blazquez, P.; Spekkens, K.; Singh, R.; Stanishev, V.; Trager, S. C.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Zibetti, S.; Ziegler, B.

    2013-01-01

    We present the first public data release (DR1) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005

  1. TESTING GROUND BASED GEOPHYSICAL TECHNIQUES TO REFINE ELECTROMAGNETIC SURVEYS NORTH OF THE 300 AREA HANFORD WASHINGTON

    Energy Technology Data Exchange (ETDEWEB)

    PETERSEN SW

    2010-12-02

    Airborne electromagnetic (AEM) surveys were flown during fiscal year (FY) 2008 within the 600 Area in an attempt to characterize the underlying subsurface and to aid in the closure and remediation design study goals for the 200-PO-1 Groundwater Operable Unit (OU). The rationale for using the AEM surveys was that airborne surveys can cover large areas rapidly at relatively low costs with minimal cultural impact, and observed geo-electrical anomalies could be correlated with important subsurface geologic and hydrogeologic features. Initial interpretation of the AEM surveys indicated a tenuous correlation with the underlying geology, from which several anomalous zones likely associated with channels/erosional features incised into the Ringold units were identified near the River Corridor. Preliminary modeling resulted in a slightly improved correlation but revealed that more information was required to constrain the modeling (SGW-39674, Airborne Electromagnetic Survey Report, 200-PO-1 Groundwater Operable Unit, 600 Area, Hanford Site). Both time-and frequency domain AEM surveys were collected with the densest coverage occurring adjacent to the Columbia River Corridor. Time domain surveys targeted deeper subsurface features (e.g., top-of-basalt) and were acquired using the HeliGEOTEM{reg_sign} system along north-south flight lines with a nominal 400 m (1,312 ft) spacing. The frequency domain RESOLVE system acquired electromagnetic (EM) data along tighter spaced (100 m [328 ft] and 200 m [656 ft]) north-south profiles in the eastern fifth of the 200-PO-1 Groundwater OU (immediately adjacent to the River Corridor). The overall goal of this study is to provide further quantification of the AEM survey results, using ground based geophysical methods, and to link results to the underlying geology and/or hydrogeology. Specific goals of this project are as follows: (1) Test ground based geophysical techniques for the efficacy in delineating underlying geology; (2) Use ground

  2. Reef communities in the Dry Tortugas (Florida, USA): Baseline surveys for the new no-take area

    Science.gov (United States)

    2008-01-01

    To understand the current community structure on reefs in the Dry Tortugas, we conducted specieslevel surveys of macroalgae, coral diversity, herbivorous and game fishes, urchins, and substratum composition (e.g., rugosity) in shallow (3- to 5-m depth) low-relief reef and hardbottom habitats in October 2007. We had particular interest in the ecological process of herbivory inside and outside of the “no-take” Research Natural Area (RNA) designated by the U.S. National Park Service in 2007, and establishing a baseline to assess future changes to trophic functioning. Diadema antillarum and herbivorous fish abundance, percent cover of macroalgae, and species richness of corals and gorgonians at the 18 randomly selected survey sites were not significantly different inside vs. outside of the RNA. Mean densities of D. antillarum ranged from 0.01 to 0.54 individuals m-2, with 11 of the 18 sites having densities above 0.10 individuals m-2. Both D. antillarum density and coral species richness were positively correlated to rugosity of the substratum. Diadema antillarum density was also positively related to percentage of the substratum composed of Acropora cervicornis rubble. Improved trophic functioning and increases in D. antillarum can improve reef condition in the Dry Tortugas, and the RNA is an important management tool to achieve increases in reef resilience to global-scale stressors.

  3. Forsmark site investigation. Detailed ground magnetic survey and lineament interpretation in the Forsmark area, 2006-2007

    Energy Technology Data Exchange (ETDEWEB)

    Isaksson, Hans; Thunehed, Hans; Pitkaenen, Timo; Keisu, Mikael (GeoVista AB, Luleaa (SE))

    2007-12-15

    . The fold is U-shaped and opens to the southeast. Within the fold the magnetic pattern is more varied with gently banded to more irregular patterns and from low to high magnetic intensity. The fold pattern is most prominent in the Asphaellsfjaerden area but is also repeated recurrently from northwest to the southeast. The area between Bolundsfjaerden and the road to drill site DS6 forms the core of the fold structure with a more irregular magnetic pattern. Northeast of the SFR office the pattern is characterised by a broad, southeast-northwest trending magnetic low, coincident with the Singoe deformation zone. The low magnetic relief give less information on the structural pattern within this area. Further northeast of this structure and in the area around the SFR underground facilities, the magnetic pattern is less regular and gently folded, indicating a varying and complex folding pattern. The interpretation of the magnetic data has been directed towards identification of linear features but also a few areas with very low magnetisation and low magnetic relief has been outlined. Destruction of ferromagnetic minerals is a probable cause; however, the origin of these features is uncertain and would require further investigations. Areas with a diffuse magnetic pattern might indicate larger depth to the magnetic source or occurrences of fractured and/or altered bedrock surface. Narrow, low magnetic linear features occurring concordant with the general bedrock foliation are difficult to determine as related to fracture zones or to rock types with low magnetization. In this work, these linear features are identified as lineaments with a separate character called 'minima connections'. From all detailed magnetic surveys a total of 1,855 magnetic lineaments have been identified of which 811 are characterized as 'minima connections', 380 and 733 magnetic lineaments have a low and high uncertainty, respectively. The lineaments are graded in low, medium and

  4. Fiscal year 1992 report on archaeological surveys of the 100 Areas, Hanford Site, Washington

    Energy Technology Data Exchange (ETDEWEB)

    Wright, M.K.

    1993-09-01

    During FY 1992, the Hanford Cultural Resources Laboratory (HCRL) conducted a field survey of the 100-HR-3 Operable Unit (600 Area) and tested three sites near the 100 Area reactor compounds on the US Department of Energy`s Hanford Site at the request of Westinghouse Hanford Company. These efforts were conducted in compliance with Section 106 of the National Historic Preservation Act (NHPA) and are part of a cultural resources review of 100 Area Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) operable units in support of CERCLA characterization studies.The results of the FY 1992 survey and test excavation efforts are discussed in this report. 518 ha in the 100-HR-3 Operable Unit and conducted test excavations at three prehistoric sites near the 100-F and 100-K reactors to determine their eligibility for listing on the National Register of Historic Places.

  5. In-depth analysis of drivers' merging behavior and rear-end crash risks in work zone merging areas.

    Science.gov (United States)

    Weng, Jinxian; Xue, Shan; Yang, Ying; Yan, Xuedong; Qu, Xiaobo

    2015-04-01

    This study investigates the drivers' merging behavior and the rear-end crash risk in work zone merging areas during the entire merging implementation period from the time of starting a merging maneuver to that of completing the maneuver. With the merging traffic data from a work zone site in Singapore, a mixed probit model is developed to describe the merging behavior, and two surrogate safety measures including the time to collision (TTC) and deceleration rate to avoid the crash (DRAC) are adopted to compute the rear-end crash risk between the merging vehicle and its neighboring vehicles. Results show that the merging vehicle has a bigger probability of completing a merging maneuver quickly under one of the following situations: (i) the merging vehicle moves relatively fast; (ii) the merging lead vehicle is a heavy vehicle; and (iii) there is a sizable gap in the adjacent through lane. Results indicate that the rear-end crash risk does not monotonically increase as the merging vehicle speed increases. The merging vehicle's rear-end crash risk is also affected by the vehicle type. There is a biggest increment of rear-end crash risk if the merging lead vehicle belongs to a heavy vehicle. Although the reduced remaining distance to work zone could urge the merging vehicle to complete a merging maneuver quickly, it might lead to an increased rear-end crash risk. Interestingly, it is found that the rear-end crash risk could be generally increased over the elapsed time after the merging maneuver being triggered. Copyright © 2015 Elsevier Ltd. All rights reserved.

  6. A Case Study of Damage Energy Analysis and an Early Warning by Microseismic Monitoring for Large Area Roof Caving in Shallow Depth Seams

    Directory of Open Access Journals (Sweden)

    Like Wei

    2015-01-01

    Full Text Available Shallow depth coal seams are widely spread in Shendong mining area, which is located in the Northwestern region of China. When working face is advanced out of concentrated coal pillar in upper room and pillar goaf, strong strata behaviors often cause support crushing accidents, and potentially induce large area residual pillars instability and even wind blast disaster. In order to predict the precise time when the accident happens, guaranteeing life-safety of miner, microseismic monitoring system was for the first time applied in shallow coal seam. Based on damage mechanics correlation theory, the damage energy model is established to describe relationship between damage level and cumulative energy of microseismic events. According to microseismic monitoring data of two support crushing accidents, the damage energy model is verified and an effective early warning method of these accidents is proposed. The field application showed that the early warning method had avoided miners suffering from all support crushing accidents in Shigetai coal mine.

  7. Curie Point Depth, Geothermal Gradient and Heat-Flow Estimation and Geothermal Anomaly Exploration from Integrated Analysis of Aeromagnetic and Gravity Data on the Sabalan Area, NW Iran

    Science.gov (United States)

    Afshar, A.; Norouzi, G. H.; Moradzadeh, A.; Riahi, M. A.; Porkhial, S.

    2017-03-01

    Prospecting the geothermal resources in northwest of Iran, conducted in 1975, revealed several promising areas and introduced the Sabalan geothermal field as a priority for further studies. The Sabalan Mt., representing the Sabalan geothermal field, is a large stratovolcano which consists of an extensive central edifice built on a probable tectonic horst of underlying intrusive and effusive volcanic rocks. In this study, Curie point depth (CPD), geothermal gradient and heat-flow map were constituted from spectral analysis of the aeromagnetic data for the NW of Iran. The top of the geothermal resource (i.e., the thickness of the overburden) was evaluated by applying the Euler deconvolution method on the residual gravity data. The thickness of the geothermal resource was calculated by subtracting the Euler depths obtained from the CPDs in the geothermal anomalous region. The geothermal anomalous region was defined by the heat-flow value greater than 150 mW/m2. CPDs in the investigated area are found between 8.8 km in the Sabalan geothermal field and 14.1 in the northeast. The results showed that the geothermal gradient is higher than 62 °C/km and the heat-flow is higher than 152 mW/m2 for the geothermal manifestation region; the thickness of the geothermal resource was also estimated to vary between 5.4 and 9.1 km. These results are consistent with the drilling and other geological information. Findings indicate that the CDPs agree with earthquake distribution and the type of thermal spring is related to the depth of the top of the geothermal resource.

  8. Curie Point Depth, Geothermal Gradient and Heat-Flow Estimation and Geothermal Anomaly Exploration from Integrated Analysis of Aeromagnetic and Gravity Data on the Sabalan Area, NW Iran

    Science.gov (United States)

    Afshar, A.; Norouzi, G. H.; Moradzadeh, A.; Riahi, M. A.; Porkhial, S.

    2016-12-01

    Prospecting the geothermal resources in northwest of Iran, conducted in 1975, revealed several promising areas and introduced the Sabalan geothermal field as a priority for further studies. The Sabalan Mt., representing the Sabalan geothermal field, is a large stratovolcano which consists of an extensive central edifice built on a probable tectonic horst of underlying intrusive and effusive volcanic rocks. In this study, Curie point depth (CPD), geothermal gradient and heat-flow map were constituted from spectral analysis of the aeromagnetic data for the NW of Iran. The top of the geothermal resource (i.e., the thickness of the overburden) was evaluated by applying the Euler deconvolution method on the residual gravity data. The thickness of the geothermal resource was calculated by subtracting the Euler depths obtained from the CPDs in the geothermal anomalous region. The geothermal anomalous region was defined by the heat-flow value greater than 150 mW/m2. CPDs in the investigated area are found between 8.8 km in the Sabalan geothermal field and 14.1 in the northeast. The results showed that the geothermal gradient is higher than 62 °C/km and the heat-flow is higher than 152 mW/m2 for the geothermal manifestation region; the thickness of the geothermal resource was also estimated to vary between 5.4 and 9.1 km. These results are consistent with the drilling and other geological information. Findings indicate that the CDPs agree with earthquake distribution and the type of thermal spring is related to the depth of the top of the geothermal resource.

  9. Studies of aerosol optical depth with the use of Microtops II sun photometers and MODIS detectors in coastal areas of the Baltic Sea

    Science.gov (United States)

    Zawadzka, Olga; Makuch, Przemysław; Markowicz, Krzysztof; Zieliński, Tymon; Petelski, Tomasz; Ulevičius, Vidmantas; Strzałkowska, Agata; Rozwadowska, Anna; Gutowska, Dorota

    2014-04-01

    In this paper we describe the results of a research campaign dedicated to the studies of aerosol optical properties in different regions of both the open Baltic Sea and its coastal areas. During the campaign we carried out simultaneous measurements of aerosol optical depth at 4 stations with the use of the hand-held Microtops II sun photometers. The studies were complemented with aerosol data provided by the MODIS. In order to obtain the full picture of aerosol situation over the study area, we added to our analyses the air mass back-trajectories at various altitudes as well as wind fields. Such complex information facilitated proper conclusions regarding aerosol optical depth and Ångström exponent for the four locations and discussion of the changes of aerosol properties with distance and with changes of meteorological factors. We also show that the Microtops II sun photometers are reliable instruments for field campaigns. They are easy to operate and provide good quality results.

  10. Depth determination of the subsurface uranium deposits using CR-39 cylindrical technique in Gneissoic granitic rocks, Abu Rushied area, Southeastern Desert, Egypt

    Directory of Open Access Journals (Sweden)

    Sayed F. Hassan

    2015-10-01

    Full Text Available Using solid state nuclear track detectors and employing CR-39 cylindrical technique, the depth of the subsurface uranium deposits were determined. This techniques depends mainly on the nuclear track detector situated in zigzag form inside a polyethylene cylinder of 65 cm length and 7 cm diameter. This technique was applied on a borehole in a granite mass Abu Rushied area, southeast area desert. The obtained results revealed that, the depth of U -ore deposited reached about 89 m with thickness nearly 24 m. The obtained data for radon concentrations were also used for the determination of the exhalation rates, the measured values for exhalation rate (mBqm−2h−1 varies between 6.14E-03 at h = 50 cm and 4.53E-02 at h = 10 cm, The obtained values are comparable with that recorded for the granite type of rock.

  11. Constraints for estimating the future burial depth of host rocks for geological waste disposal: a case study from the Boom Clay, Campine area, Northern Belgium

    Science.gov (United States)

    Beerten, K.; De Craen, M.; Brassinnes, S.

    2012-04-01

    An important requirement for geological formations hosting a repository for radioactive waste is sufficient depth to ensure isolation of the waste for a very long time period, up to 1 Ma and beyond. Over such long timescales, the repository depth and the thickness of the overburden may vary significantly due to various geodynamic processes. In Belgium, the Boom Clay in the Campine area (NE-Belgium) is considered as reference host formation for the geological disposal of radioactive waste. First results are presented that illustrate the possible impact of future climate change (based on several scenarios studied in the BIOCLIM project (BIOCLIM, 2001)) and tectonic movements in the Campine area on the thickness of the sediment mass overlying the Boom Clay. At present, the subcrop area of Boom Clay in the Campine area is relatively flat (between ~ 0 m a.s.l. near the river Scheldt estuary in the west and ~ 60 m a.s.l. on the Campine Plateau in the east) and is occupied by several sub-basins that belong to the rivers Meuse and Scheldt. Future development of the area will heavily depend on the behaviour of these rivers and tributaries throughout the considered timeframe, in response to climatic changes and tectonic movements. The area is characterised by a long burial history, with some minor isolated uplift and erosional events during the last 30 Ma. In a global warming scenario during a long interglacial (> 50 ka AP), and/or in the case of subsidence, (relative) sea-level may rise such that various parts of the Boom Clay area will be occupied by the marine realm. This is likely to be a minimal erosion scenario because the baseline for landscape evolution will rise in the upstream parts while estuarine and marine deposition may increase the thickness of the overburden in the downstream parts. In the case of a continuation of Pleistocene glacial cycles, i.e. the alternation between warm interglacials and cold glacials, the area will be exposed to erosion and denudation

  12. Nevada Test Site Area 25, Radiological Survey and Cleanup Project, 1974-1983 (a revised final report). Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    Miller, M.G.

    1984-12-01

    This report describes the radiological survey, decontamination and decommissioning (D and D) of the Nevada Test Site (NTS) Area 25 facilities and land areas incorporated in the Nuclear Rocket Development Station (NRDS). Buildings, facilities and support systems used after 1959 for nuclear reactor and engine testing were surveyed for the presence of radioactive contamination. The radiological survey portion of the project encompassed portable instrument surveys and removable contamination surveys (swipe) for beta plus gamma and alpha radioactive contamination of facilities, equipment and land areas. Soil sampling was also accomplished. The majority of Area 25 facilities and land areas have been returned to unrestricted use. Remaining radiologically contaminated areas are posted with warning signs and barricades. 9 references, 23 figures.

  13. Magnetic survey of the R-Area Bingham Pump Outage Pits

    Energy Technology Data Exchange (ETDEWEB)

    Cumbest, R.J.

    1995-05-01

    The R-Area Bingham Pump Outage pits are a series of parallel trenches in which construction materials were buried. The suspected locations of three of the trenches are marked by HP orange waste unit marker balls, in addition to concrete pit monuments that were placed based on historical information. In order to confirm the locations of the trenches and to evaluate the presence of other buried ferric material, a magnetic survey was conducted at the R-Area Bingham Pump Outage Pits. The survey is defined by lines spaced 10 ft apart oriented subperpendicular to the trench elongation direction, with survey stations spaced at 5-ft intervals along each line. This resulted in a 10-ft by 5-ft rectangular grid node pattern. The magnetic survey resolved at least four linear arrays of magnetic field and gradient anomalies that result from buried ferric material. Three of the linear arrays correspond to suspected trench locations as delineated by HP orange marker balls and pit monuments. However, a fourth linear anomaly occurs between two of the suspected trenches, indicating the presence of an unmarked trench. In addition to linear anomalies that are associated with the trenches, other isolated anomalies occur due to ferric sources that can be identified on the surface, such as signs, monuments, and metal pipes.`

  14. Compilation of geology, mineralization, geochemistry and geophysical study of IP/RS & ground magnetic survey at Roudgaz area, southeast of Gonabad, Khorasan Razavi province

    Directory of Open Access Journals (Sweden)

    Hossein Hajimirzajan

    2013-04-01

    Full Text Available Roudgaz prospect area is a Cu, Sn, Pb, Zn, and Au polymetal vein system located to the southeast of Gonabad and in the northeast of Lut block. Oxidan subvolcanic Tertiary rocks with monzonite to monzodiorite porphyry composition intruded the metamorphic rocks of middle Jurassic. The majority of intrusive bodies are affected by carbonation, argillic, sericitic, and silicification-tourmaline alteration. Mineralization in the area is controlled by fault and is present as vein with domination of NW-SE direction and 85-90º dip. Primary minerals are quartz, tourmaline, chalcopyrite, pyrite, and secondary minerals are malachite, azurite, and goethite. Geochemical sampling using chip composite method indicated high anomalies of Cu, Sn, Pb, and As (up to 10000 ppm, Zn (up to 5527 ppm, and Au (up to 325 ppb. Broad gossan zone is present in the area and is related to the oxidation of sulfide minerals. IP/RS survey was performed over the geochemical anomalies for identification of the location and extension of sulfide mineralization at depth. Generally, chargeability increases in gossan zones, veins, old workings and geochemical anomalies. Resistivity over the quartzite unit and also in locations where mineralized vein is associated with quartz has a high anomaly of up to 425 ohm-m. Due to high geochemical anomaly of Sn and its relation with reduced subvolcanic intrusives, ground magnetic survey was performed to identify the location of magnetite (oxidant and ilmenite (reduced series at depth. Variation of Total Magnetic Intensity (TMI is 335.1 Gamma in the TMI map. The highest magnetic anomalies in the RTP map are located to the north of the survey area which is related to magnetite series (hornblende biotite monzodiorite porphyry and extend to the south at depth. The lowest magnetic anomaly is located to the center of the survey area and particularly to the east of the Roudgaz village correlating the highest chargeability and geochemical anomaly. Based

  15. A survey of low-level radioactive waste treatment methods and problem areas associated with commercial nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Jolley, R.L.; Rodgers, B.R.

    1987-01-01

    A survey was made (June 1985) of technologies that were currently being used, those that had been discontinued, and those that were under consideration for treatment of low-level radioactive waste from the commercial nuclear power plants in the United States. The survey results included information concerning problems areas, areas needing research and development, and the use of mobile treatment facilities.

  16. Remotely Measuring Snow Depth in Inaccessible Terrain

    Science.gov (United States)

    Dixon, D.; Boon, S.

    2010-12-01

    In watershed-scale studies of snow accumulation, high alpine areas are typically important accumulation areas. While snow depth measurements may not be collected in these regions due to avalanche danger, failing to include them in basin-wide estimates of snow accumulation may lead to large underestimates of basin-scale water yield. We present a new method to measure spatially distributed point snow depths remotely. Previously described methods using terrestrial laser scanning (TLS) systems, airborne light detection and ranging (LiDAR) systems, and hand-held laser distance meters have several limitations related to cost, data processing, and accuracy, thus reducing their applicability. The use of a modern robotic total station attempts to resolve these limitations. Total stations have much greater measurement accuracy than laser distance meters, and are significantly less expensive then TLS and LiDAR systems. Data can be output in common data formats, simplifying data processing and management. Measurement points can also be resampled repeatedly throughout the season with high accuracy and precision. Simple trigonometry is used to convert total station measurements into estimates of snow depth perpendicular to the slope. We present results of remote snow depth measurements using a Leica Geosystems TCRP 1201+ robotic total station. Snow depth estimates from the station are validated against measured depths in a field trial. The method is then applied in a basin-scale study to collect and calculate high elevation snow depth, in combination with traditional snow surveys at lower elevations.

  17. Depth statistics

    OpenAIRE

    2012-01-01

    In 1975 John Tukey proposed a multivariate median which is the 'deepest' point in a given data cloud in R^d. Later, in measuring the depth of an arbitrary point z with respect to the data, David Donoho and Miriam Gasko considered hyperplanes through z and determined its 'depth' by the smallest portion of data that are separated by such a hyperplane. Since then, these ideas has proved extremely fruitful. A rich statistical methodology has developed that is based on data depth and, more general...

  18. Survey of solid waste generation and composition in a rapidly growing urban area in Central Nigeria.

    Science.gov (United States)

    Sha'Ato, R; Aboho, S Y; Oketunde, F O; Eneji, I S; Unazi, G; Agwa, S

    2007-01-01

    The objective of this study was to carry out a field survey of the solid waste generation profile in parts of Makurdi, a rapidly growing urban city in north central Nigeria. The areas surveyed covered low, medium and high-density residential quarters, representing high/medium/low income groups in the area. Results of the survey show that the bulk ( approximately 82%) of the solid waste generated in the area originates from households, rather than from commercial, institutional or industrial premises. Of the waste from households, a substantial proportion consists of various putrescible materials (36-57%), with ash, dust and sand (combined) forming another significant proportion (21-41%). From the non-household sources, putrescible matter is also significant (23-45%), as is the combined ash/dust/sand fraction (32-36%). The quantity of plastics/cellophane materials from household and non-household sources was, however, comparable (6-10%). There was more paper from commercial and institutional premises (9-12%) than from household or small/medium scale industrial premises (2-4%). Glass (0.1-6.9%), metals (mostly cans and bottle corks, 0.7-3.4%) and textiles (0.3-6%) form only a minor proportion of the waste across generators. Waste generation rates were for households, 0.54kg/cap/day; for commercial, 0.018kg/m(2)/day; institutional, 0.015kg/m(2)/day while for small and medium scale industries, the rate was 0.47kg/m(2)/day. As there is no previous study of this kind in the Makurdi urban area, what is reported here may be taken as baseline for the entire area. The implications of the findings for solid waste management planning are discussed.

  19. An aerial radiological survey of the Tonopah Test Range including Clean Slate 1,2,3, Roller Coaster, decontamination area, Cactus Springs Ranch target areas. Central Nevada

    Energy Technology Data Exchange (ETDEWEB)

    Proctor, A.E.; Hendricks, T.J.

    1995-08-01

    An aerial radiological survey was conducted of major sections of the Tonopah Test Range (TTR) in central Nevada from August through October 1993. The survey consisted of aerial measurements of both natural and man-made gamma radiation emanating from the terrestrial surface. The initial purpose of the survey was to locate depleted uranium (detecting {sup 238}U) from projectiles which had impacted on the TTR. The examination of areas near Cactus Springs Ranch (located near the western boundary of the TTR) and an animal burial area near the Double Track site were secondary objectives. When more widespread than expected {sup 241}Am contamination was found around the Clean Slates sites, the survey was expanded to cover the area surrounding the Clean Slates and also the Double Track site. Results are reported as radiation isopleths superimposed on aerial photographs of the area.

  20. Interpretation of dipole-dipole electrical resistivity survey, Colado geothermal area, Pershing County, Nevada

    Science.gov (United States)

    Mackelprang, C. E.

    1980-09-01

    An electrical resistivity survey in the Colado geothermal area, Pershing County, Nevada has defined areas of low resistivity on each of five lines surveyed. Some of these areas appear to be fault controlled. Thermal fluids encountered in several drill holes support the assumption that the hot fluids may be associated with areas of low resistivity. The evidence of faulting as interpreted from modeling of the observed resistivity data is therefore particularly significant since these structures may be the conduits for the thermal fluids. Sub-alluvial fault zones are interpreted to occur between stations 0-5 NW on Line D and on Line A between stations 4 NW and 4 SE. Fault zones are also interpreted on Line C near stations 1 NW, 1 SE, and 3 SE, and on Line E between stations 2-4 NW and near 1 SE. No faulting is evident under the alluvial cover on the southwest end of Line B. A deep conductive zone is noted within the mountain range on two resistivity lines. There is no definite indication that thermal fluids are associated with this resistivity feature.

  1. Soil-gas radon/helium surveys in some neotectonic areas of NW Himalayan foothills, India

    Directory of Open Access Journals (Sweden)

    S. Mahajan

    2010-06-01

    Full Text Available The present research is aimed at accessing the relationship between variation in the soil gases radon (222Rn and helium (4He and recently developed fissures and other neotectonic features in Nurpur and Nadha areas of the NW Himalayas, India. Two soil-gas surveys were conducted on/near known faults to reconfirm their position using soil gas technique and to check their present activity. During these surveys, soil-gas samples were collected along traverses crossing the observed structures. The data analysis reveals that the concentrations of radon and helium along the Dehar lineament and the longitudinal profile (Profile D are very high compared to any other thrust/lineament of the Nurpur area. The Nadha area shows high values of radon and helium concentrations along/near the Himalayan Frontal Fault (HFF as compared to the adjoining areas. This indicates the presence of some buried fault/fault zone running parallel to the HFF, not exposed to the surface and not delineated by satellite data but is geochemically active and might be tectonically active too. Hence, soil helium and radon gas patterns have been combined with morphological and geological observations to supply useful constraints for deformation of tectonic environments.

  2. Temperature profile and water depth data collected from AUSTRALIA STAR and other platforms using XBT casts in the TOGA Area - Atlantic and Pacific Ocean from 05 October 1989 to 21 December 1992 (NODC Accession 9400035)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile and water depth data were collected using XBT casts from the AUSTRALIA STAR and other platforms in the TOGA Area - Atlantic and Pacific Ocean,...

  3. Temperature profile and water depth data collected from USS BARBEY using BT and XBT casts in the TOA Area - Pacific Ocean and other seas from 02 October 1988 to 30 October 1988 (NODC Accession 8800335)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile and water depth data were collected using BT and XBT casts from the USS BARBEY in the TOGA Area - Pacific Ocean, Inland Sea, South China Sea,...

  4. The 24 August 2016 Amatrice earthquake: macroseismic survey in the damage area and EMS intensity assessment

    Directory of Open Access Journals (Sweden)

    QUEST W.G. :

    2016-11-01

    Full Text Available The 24 August 2016 earthquake very heavily struck the central sector of the Apennines among the Lazio,Umbria, Marche and Abruzzi regions, devastating the town of Amatrice, the nearby villages and other localities along the Tronto valley. In this paper we present the results of the macroseismic field survey carried out using the European Macroseismic Scale (EMS to take the heterogeneity of the building stock into account. We focused on the epicentral area, where geological conditions may also have contributed to the severity of damage. On the whole, we investigated 143 localities; the maximum intensity 10 EMS has been estimated for Amatrice, Pescara del Tronto and some villages in between. The severely damaged area (8-9 EMS covers a strip trending broadly N-S and extending 15 km in length and 5 km in width; minor damage occurred over an area up to 35 km northward from the epicenter.

  5. Joint land-sea seismic survey and research on the deep structures of the Bohai Sea areas

    Institute of Scientific and Technical Information of China (English)

    HAO Tianyao; HAN Guozhong; YOU Qingyu; LIU Lihua; LV Chuanchuan; XU Ya; LI Zhiwei; ZHAO Chunlei; ZHENG Yanpeng; LIU Chenguang

    2013-01-01

    This paper presents the survey and research work of two land-sea profiles in the Bohai Sea, China, carried out in 2010-2011, including the seismic sources on land and in the sea, the ocean bottom seismographs (OBS) and their recovery, the coupling of OBS and the environment noise in sea area, the data quality of OBSs, and the result of data analysis. We focused on the investigation of crustal structures revealed by the two NE\\EW-trending joint land-sea profiles. In combination with the Pn-velocity distribution and gravity-magnetic inversion results in the North China Craton, we propose that the undulation of the Moho interface in the Bohai and surrounding areas is not strong, and the lithospheric thinning is mainly caused by the thinning of its mantle part. The research result indicates that obvious lateral variations of Moho depth and seismic velocity appear nearby all the large-scale faults in Bohai Sea, and there is evidence of underplating and reforming of the lower crust by mantle material in the Bohai area. However, geophysical evidence does not appear to support the“mantle plume”or“delamination”model for the North China Craton destruction. The crustal structure of the Bohai Sea revealed“a relatively normal crust and obviously thinned mantle lid”, local velocity anomalies and instability phenomena in the crust. These features may represent a combined effect of North China-Yangtze collision at an early stage and the remote action of Pacific plate subduction at a late stage.

  6. CARMA Large Area Star Formation Survey: Dense Gas in the Young L1451 Region of Perseus

    CERN Document Server

    Storm, Shaye; Lee, Katherine I; Fernández-López, Manuel; Looney, Leslie W; Teuben, Peter; Arce, Héctor G; Rosolowsky, Erik W; Meisner, Aaron M; Isella, Andrea; Kauffmann, Jens; Shirley, Yancy L; Kwon, Woojin; Plunkett, Adele L; Pound, Marc W; Segura-Cox, Dominique M; Tassis, Konstantinos; Tobin, John J; Volgenau, Nikolaus H; Crutcher, Richard M; Testi, Leonardo

    2016-01-01

    We present a 3 mm spectral line and continuum survey of L1451 in the Perseus Molecular Cloud. These observations are from the CARMA Large Area Star Formation Survey (CLASSy), which also imaged Barnard 1, NGC 1333, Serpens Main and Serpens South. L1451 is the survey region with the lowest level of star formation activity---it contains no confirmed protostars. HCO+, HCN, and N2H+ (J=1-0) are all detected throughout the region, with HCO+ the most spatially widespread, and molecular emission seen toward 90% of the area above N(H_2) column densities of 1.9x10^21 cm^-2. HCO+ has the broadest velocity dispersion, near 0.3 km/s on average, compared to ~0.15 km/s for the other molecules, thus representing a range from supersonic to subsonic gas motions. Our non-binary dendrogram analysis reveals that the dense gas traced by each molecule has similar hierarchical structure, and that gas surrounding the candidate first hydrostatic core (FHSC), L1451-mm, and other previously detected single-dish continuum clumps have sim...

  7. A field survey of some camel productive and reproductive traits in the Butana area, Sudan

    Directory of Open Access Journals (Sweden)

    Babiker E. A,

    2011-08-01

    Full Text Available This field survey study was conducted to investigate major constraints facing camel herd growth and reproduction in the Butana area. Data were collected during the study period from July 2009 to June 2010. Forms of questionnaires distributed, included different productive and reproductive characters, where a total of 321 camels were surveyed. The results showed that the number of pregnant she-camels was found positively correlated with age. Seventy percent of delivered females were recorded during August. General reproductive traits recorded during the survey period revealed that mean age at puberty was 40.5 months, while full reproductive potential was reached at a mean of 60 months. Age at first calving was recorded to be 72 months, while calving interval was observed at a mean of 30.5 months. Daily milk yield surveyed was higher (P<0.05 during winter and autumn (3.16 ± 2.41 and 2.88 ± 2.41 L, respectively, while lower daily milk production was recorded during summer (1.23 ± 1.22 L. Milk production was found positively correlated with age.

  8. Basic feasibility study with overseas geological structure survey in FY 1999 - Kalewa area, Myanmar (Summary)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-03-01

    For the purpose of evaluating coal resource in the Kalewa area southwest of Sagaing about 300km northwest of Mandalay city, Myanmar, survey was conducted on geology, test boring, specimen analysis, infrastructure, etc. The range of geological survey is approximately 5.5km{sup 2}, and test boring was carried out for 9 holes (total length: 2,046.74m). For the coal analysis, 8 specimens were used, and measurement was made of the combustion calorie, sulfur content, water content, density, ash, ash melting temperature, etc. Survey was also conducted on drilling conditions/methods for coal mines in the periphery, roads for coal transportation, barge loading ports, etc. The results of the survey are as follows. The thickness of the minable main coal seam is 2.1-2.9m, and the inclination angle is 40-42 degrees. Specimens from coal seams indicate low ash, low sulfur content and high combustion calorie. The estimated coal reserves are 7,730,000 tons, and they total 15,300,000 tons including those from other coal seams. In the development by the 100m-width longwall mining which was proposed, it is possible to produce 130,000 tons/year for more than 20 years. (NEDO)

  9. Injury morbidity in an urban and a rural area in Tanzania: an epidemiological survey

    Directory of Open Access Journals (Sweden)

    Setel Philip

    2005-01-01

    Full Text Available Abstract Background Injuries are becoming a major health problem in developing countries. Few population based studies have been carried out in African countries. We examined the pattern of nonfatal injuries and associated risk factors in an urban and rural setting of Tanzania. Methods A population-based household survey was conducted in 2002. Participants were selected by cluster sampling. A total of 8,188 urban and 7,035 rural residents of all ages participated in the survey. All injuries reported among all household members in the year preceding the interview and resulting in one or more days of restricted activity were included in the analyis. Results A total of 206 (2.5% and 303 (4.3% persons reported to have been injured in the urban and rural area respectively. Although the overall incidence was higher in the rural area, the incidence of major injuries (≥ 30 disability days was similar in both areas. Males were at a higher risk of having an injury than females. Rural residents were more likely to experience injuries due to falls (OR = 1.6; 95% CI = 1.1 – 2.3 and cuts (OR = 4.3; 95% CI = 3.0 – 6.2 but had a lower risk of transport injuries. The most common causes of injury in the urban area were transport injuries and falls. In the rural area, cuts and stabs, of which two thirds were related to agriculture, formed the most common cause. Age was an important risk factor for certain types of injuries. Poverty levels were not significantly associated with experiencing a nonfatal injury. Conclusion The patterns of injury differ in urban and rural areas partly as a reflection of livelihoods and infrastructure. Rural residents are at a higher overall injury risk than urban residents. This may be important in the development of injury prevention strategies.

  10. Use of New Commercial, Off-the-Shelf, High-Definition Structure Scanning Fathometer/Depth Finder For Coastal Current Survey Operations

    Science.gov (United States)

    Roggenstein, E. B.; Gray, G.

    2013-12-01

    The National Oceanic and Atmospheric Administration (NOAA) National Ocean Service (NOS) Center for Operational Oceanographic Products and Services (COOPS) manages three national observing system programs. These are the National Water level Observation Network (NWLON) (210 stations), the 23 NOAA/Physical Oceanographic Real-Time Systems (PORTS), and National Currents Observing Program (NCOP) (approximately 70 deployments/year). In support of its mission COOPS operates and maintains a number of small boats. During vessel operations, side-scan sonar data are at times needed to provide information about bottom structure for future work in the area. For example, potential hazards, obstructions, or bottom morphology features that have not been identified on localized charts for a given area could be used to inform decisions on planned installations. Side-scan sonar capability is also important when attempting to reacquire bottom mounts that fail to surface at the conclusion of a current meter survey. Structure mapping and side-scan capabilities have been added to recent consumer-level, commercial, off-the-shelf fathometers, generally intended for recreational, commercial fishing, and diving applications. We are proposing to investigate these systems' viability for meeting survey requirements. We assess their ability to provide a flexible alternative to research/commercial oceanographic level side-scan system at a significant cost savings. Such systems could provide important information to support scientific missions that require qualitative seafloor imagery.

  11. Control technology assessment of hazardous waste disposal operations in chemicals manufacturing: in-depth survey report of E. I. Du Pont de Nemours and Company, Chambers Works incinerator, Deepwater, New Jersey

    Energy Technology Data Exchange (ETDEWEB)

    Anastas, M.Y.

    1984-01-01

    An in depth survey was conducted to assess control technology of hazardous waste disposal operations at the Chamber Works incinerator, Du Pont de Nemours and Company (SIC-2800), Deepwater, New Jersey, in October 1982. Area and breathing zone samples were analyzed for toluene (108883), ortho-chloronitrobenzene (88733), and para-chloronitrobenzene (100005). All concentrations were well below the relevant standards. Control and safety instrumentation consisted of an electrically operated interlock system that sensed process disturbances and shut down the furnace. Wastes were burned directly from tank trailers. Trailer vents were connected to a spot scrubbing system. The hose connections included a recirculation line that prevented the plugging of process and trailer discharge lines with dirt particles. Waste pumps were provided with explosion proof motors and double mechanical seals. The company had programs for worker education and evaluation of on the job performance. Air monitoring of selected air contaminants was done routinely. Minimum protective equipment required for working in the incinerator area included rubber gloves, hard hat, and butyl rubber covers for shoes. The author concludes that a state of the art hazard control system is in place at the facility.

  12. Large Area Lyman Alpha Survey: Finding Young Galaxies at z=4.5

    Science.gov (United States)

    Malhotra, S.; Rhoads, J.; Dey, A.; Stern, D.; Spinrad, H.

    Strong Lyα emission is a signpost of young stars and the absence of dust and thus indicates young galaxies. To find such a population of young galaxies at z=4.5 we started the Large Area Lyman Alpha survey (LALA). This survey achieves an unprecedented combination of volume and sensitivity by using narrow-band filters on a large format (36' × 36') camera on the 4 meter telescope at KPNO. The volume density and star-formation contribution of the Lyα emitters at z=4.5 is comparable to that of Lyman break galaxies. With many candidates and a few spectroscopic confirmations in hand we discuss what the properties of Lyα emitters imply for galaxy and star formation in the early universe.

  13. Footprints of triggering in large area surveys of the nearby ISM and YSOs

    Science.gov (United States)

    Tóth, L. Viktor; Kiss, Zoltán T.

    Introduction: Our goal is to evaluate the role of trigger effects on the star formation and early stellar evolution by presenting statistically large sample of cloud and low-mass YSO data. Methods: We conducted large area surveys (ranging from 400square-degree to10800square-degree) in optical, NIR and FIR. The distribution of the ISM and low-mass YSOs were surveyed. Results: (1) We pointed out that according to the IRAS FIR data, the structure of the cold ISM is Swiss-cheese-like and compiled an all-sky catalogue of FIR loops (Kiss, Moór Tóth, 2004, A&A 418, 131, and Könyves et al. 2006 A&A submitted). (2) We identified more than 200 interstellar clouds in the Cepheus region, described their morphology and derived their FIR properties (Kiss, Tóth, Krause et al. 2006 A&A in press). (3) We analysed the distribution of classical TTauri candidate objects on very large areas finding galactic large scale distribution, clustering and local inhomogenities by a statistical investigation. Discussion: (1) A relative excess was found statistically in the number of clouds in the direction of the FIR loop shells indicating a possible excess formation. This is a complementary data set to eg. HI all-sky surveys. (2) We demonstrated the differences between the cloud and star formation activity in unperturbed and loop shell regions of the Upper Cepheus region showing possible trigger effects (Kiss, Tóth, Krause et al. 2006 A&A in press). (3) The obtained distribution of low-mass YSOs may be used in comparison with theoretical models and numerical simulations, as well as predictions for further surveys.

  14. A near-infrared catalogue of the Galactic novae in the VVV survey area

    CERN Document Server

    Saito, R K; Angeloni, R; Catelan, M; Beamin, J C; Borissova, J; Dekany, I; Kerins, E; Kurtev, R; Mennickent, R E

    2013-01-01

    Near-IR data of Classical Novae contain useful information about the ejected gas mass and the thermal emission by dust formed during eruption, and provide independent methods to classify the objects according to the colour of their progenitors, and the fading rate and features seen after eruption. The VISTA Variables in the Via Lactea survey (VVV) is a near-IR ESO Public Survey mapping the MW bulge and southern plane. Data taken during 2010-2011 covered the entire area in the JHKs bands plus some epochs in Ks-band of the ongoing VVV variability campaign. We used the novae list provided by VSX/AAVSO catalogue to search for all objects within the VVV area. We used the VVV data to create a near-IR catalogue of the known Galactic novae in the 562 sq.deg. area covered by VVV. The VVV near-IR catalogue of novae contains JHKs photometry of 93 objects completed as of December 2012. We also checked in the ongoing VVV variability campaign for the light-curves of novae that erupted in the last years. VVV images can also...

  15. Emerging Technologies and Techniques for Wide Area Radiological Survey and Remediation

    Energy Technology Data Exchange (ETDEWEB)

    Sutton, M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Zhao, P. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-03-24

    Technologies to survey and decontaminate wide-area contamination and process the subsequent radioactive waste have been developed and implemented following the Chernobyl nuclear power plant release and the breach of a radiological source resulting in contamination in Goiania, Brazil. These civilian examples of radioactive material releases provided some of the first examples of urban radiological remediation. Many emerging technologies have recently been developed and demonstrated in Japan following the release of radioactive cesium isotopes (Cs-134 and Cs-137) from the Fukushima Dai-ichi nuclear power plant in 2011. Information on technologies reported by several Japanese government agencies, such as the Japan Atomic Energy Agency (JAEA), the Ministry of the Environment (MOE) and the National Institute for Environmental Science (NIES), together with academic institutions and industry are summarized and compared to recently developed, deployed and available technologies in the United States. The technologies and techniques presented in this report may be deployed in response to a wide area contamination event in the United States. In some cases, additional research and testing is needed to adequately validate the technology effectiveness over wide areas. Survey techniques can be deployed on the ground or from the air, allowing a range of coverage rates and sensitivities. Survey technologies also include those useful in measuring decontamination progress and mapping contamination. Decontamination technologies and techniques range from non-destructive (e.g., high pressure washing) and minimally destructive (plowing), to fully destructive (surface removal or demolition). Waste minimization techniques can greatly impact the long-term environmental consequences and cost following remediation efforts. Recommendations on technical improvements to address technology gaps are presented together with observations on remediation in Japan.

  16. Borehole survey of uranium deposit in Geosan Deokpyeongri A area (1977)

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jeong Taek; Han, Jong Yun; Kim, Dai Oap; Im, Hyun Chul [Korea Inst. of Geology Mining and Materials, Taejon (Korea, Republic of)

    1995-12-01

    The survey on the nuclear raw mineral (uranium) deposits had been carried out for a long time from early 1960`s to late 1980`s by the Geological and Mineral Institute of Energy and Resources. Unpublished data of the uranium ore deposit of Goesan Deokpyeongri A area is published on this paper. Geology on the Ogcheon System have been controversial by many geologists, therefore we have reviewed on the geology and stratigraphy. Particularly, we have interpreted the host root rock on the magnetite bearing banded gneiss, which is named so called Kyemeongsan Formation. (author). 4 maps.

  17. Borehole survey and reserves of uranium deposit in Geosan Deokpyeongri A area (1978)

    Energy Technology Data Exchange (ETDEWEB)

    Park, Joong Kwon; Kim, Jong Hwan; Kim, Jeong Taek [Korea Institute of Geology Mining and Materials, Taejon (Korea, Republic of)

    1995-12-01

    The survey on the nuclear raw mineral (uranium) deposits had been carried out for a long time from early 1960`s to late 1980`s by the Geological and Mineral Institute of Energy and Resources. Unpublished data of the uranium ore deposit of Goesan Deokpyeongri A area is published on this paper. Geology on the Ogcheon System have been controversial by many geologists, therefore we have reviewed on the geology and stratigraphy. Particularly, we have interpreted the host root rock on the magnetite bearing banded gneiss, which is named so called Kyemeongsan Formation. (author). 12 maps.

  18. Hazard connected to railway tunnel construction in karstic area: applied geomorphological and hydrogeological surveys

    Directory of Open Access Journals (Sweden)

    G. Casagrande

    2005-01-01

    Full Text Available In a mature karstic system, the realisation of galleries using the methodology of railway tunnel boring machine (TBM involves particular problems due to the high risk of interference with groundwater (often subject to remarkable level variations and with cavities and/or thick fill deposits. In order to define groundwater features it is necessary to investigate both hydrodynamic and karstification. To define and quantify the karst phenomenon in the epikarst of the Trieste Karst (Italy, an applied geomorphological approach has been experimented with surface and cavity surveys. The surface surveys have contributed to determining the potential karst versus the different outcropping lithologies and to define the structural setting of the rocky mass also through the realisation of geostructural stations and the survey of the main lines thanks to photo-interpretation. Moreover, all the dolines and the cavities present in the area interested by the gallery have been studied by analysing the probable extension of caves and/or of the secondary fill deposits and by evaluating the different genetic models. In an area 900m large and 27km long, which has been studied because of the underground karst, there are 41 dolines having diameters superior to 100m and 93 dolines whose diameters range between 100 and 50m; the dolines whose diameters are inferior to 50m are 282. The entrances of known and registered cavities in the cadastre records are 520. The hypogeal surveys have shown 5 typologies in which it has been possible to group all the cavities present in a hypothetical intersection with the excavation. The comparison between surface and hypogeal structural data and the direction of development of cavities has allowed for the definition of highly karstified discontinuity families, thus having a higher risk. The comparison of the collected data has enabled to identify the lithologies and areas having major risk and thus to quantify the probability of

  19. Mobile Health Access for Diabetics in Rural Areas of Turkey - Results of a Survey

    Science.gov (United States)

    Seker, Emine; Savini, Marco

    Extending the reach of medical professionals in rural areas is one of the goals using mobile health technologies. This paper illustrates the results of a survey conducted in 2008 in Turkey asking medical professionals about their current ICT usage and opinions about using mobile technologies in order to help patients with diabetes. The goal is to reduce the information gap between patients and medical professionals by allowing sending the information electronically using mobile technologies. This will improve both the interaction between various actors and also improve the treatment, as important trends of this chronic disease can be discovered on time.

  20. The European Large Area ISO Survey - IV. The preliminary 90-mu m luminosity function

    DEFF Research Database (Denmark)

    Serjeant, S.; Efstathiou, A.; Oliver, S.;

    2001-01-01

    We present the luminosity function of 90-mum-selected galaxies from the European Large Area ISO Survey (ELAIS), extending to z = 0.3. Their luminosities are in the range 10(9)

  1. Southern Cosmology Survey II: Massive Optically-Selected Clusters from 70 square degrees of the SZE Common Survey Area

    CERN Document Server

    Menanteau, Felipe; Barrientos, L Felipe; Deshpande, Amruta J; Hilton, Matt; Infante, Leopoldo; Jimenez, Raul; Kosowsky, Arthur; Moodley, Kavilan; Spergel, David; Verde, Licia

    2010-01-01

    We present a catalog of 105 rich and massive ($M>3\\times10^{14}M_{\\sun}$) optically-selected clusters of galaxies extracted from 70 square-degrees of public archival griz imaging from the Blanco 4-m telescope acquired over 45 nights between 2005 and 2007. We use the clusters' optically-derived properties to estimate photometric redshifts, optical luminosities, richness, and masses. We complement the optical measurements with archival XMM-Newton and ROSAT X-ray data which provide additional luminosity and mass constraints on a modest fraction of the cluster sample. Two of our clusters show clear evidence for central lensing arcs; one of these has a spectacular large-diameter, nearly-complete Einstein Ring surrounding the brightest cluster galaxy. A strong motivation for this study is to identify the massive clusters that are expected to display prominent signals from the Sunyaev-Zeldovich Effect (SZE) and therefore be detected in the wide-area mm-band surveys being conducted by both the Atacama Cosmology Teles...

  2. Depth relief

    NARCIS (Netherlands)

    Kappers, A.M.L.; Koenderink, J.J.; Doorn, A.J. van

    1995-01-01

    A study is reported of the depth relief in a simple three-dimensional scene consisting of a white, rough sphere on a planar support, illuminated in a natural manner. Viewing conditions included monocular and binocular as well as 'synoptical' viewing. In the synoptical condition the eyes are

  3. Magnetotelluric (MT) surveying in the Kakkonda geothermal area; Kakkonda chinetsu chiiki deno MT ho tansa jikken

    Energy Technology Data Exchange (ETDEWEB)

    Ogawa, Y.; Takakura, S. [Geological Survey of Japan, Tsukuba (Japan); Uchida, T. [New Energy and Industrial Technology Development Organization, Tokyo, (Japan)

    1997-05-27

    This paper describes the MT surveying conducted at the vicinity of a deep well (WD-1) in the Kakkonda geothermal area. For the MT surveying, the interval between measuring points was 300 m. Electric field dipole with a length of 300 m was given in the direction of traverse line, and that with a length of 50 m was given in the direction perpendicular to the line. Three components of magnetic field were measured using induction coil. Frequency band of the data was between 0.0005 Hz and 300 Hz. Characteristics of specific resistance model obtained from the MT surveying were illustrated. Low specific resistance zone less than 30 ohm-m was observed in the shallow zone below the altitude 0 m. This zone was comparable to the distribution of montmorillonite. High specific resistance anomaly was analyzed at the western half of the traverse line in the altitude between 0 m and -2000 m, which corresponded to the collective part of focuses. The bottom surface of the anomaly agreed well with the upper surface of neo-granite, i.e., the lower limits of earthquakes. Low specific resistance was observed in the altitude below -2000 m. 17 refs., 5 figs.

  4. Refraction seismic surveys in the investigation trench TK3 area in Olkiluoto, Eurajoki 2004

    Energy Technology Data Exchange (ETDEWEB)

    Ihalainen, M. [Suomen Malmi Oy, Espoo (Finland)

    2005-03-15

    Posiva Oy submitted an application for the Decision in Principle to the Finnish Government in May 1999. A positive decision was made at the end of 2000 by the Government. The Finnish Parliament ratified the Decision in Principle on the final disposal facility for spent nuclear fuel at Olkiluoto, Eurajoki in May 2001. The decision makes it possible for Posiva to focus the confirming bedrock investigations at Olkiluoto, where in the next few years an underground rock characterisation facility, the ONKALO, will be constructed. As a part of the investigations Suomen Malmi Oy (Smoy) conducted refraction seismic surveys at Olkiluoto site in Eurajoki. The work was ordered by Posiva Oy. The field work was carried out during May and June 2004. On five profiles S70-S74 totally 1002.5 m was surveyed. The purpose of the work was to determine the overburden thickness and to study bedrock properties, e.g. eventual fractured zones. The work consisted of staking, levelling, seismic measurements, interpretation and reporting. Fieldwork and interpretation were concluded by May and June 2004. Previously in 2000 and 2002 Smoy has carried out 33.0 km of seismic surveys in the area. (orig.)

  5. Luminosity and surface brightness distribution of K-band galaxies from the UKIDSS Large Area Survey

    CERN Document Server

    Smith, Anthony J; Cross, Nicholas J G

    2008-01-01

    We present luminosity and surface brightness distributions of 36,663 galaxies with K-band photometry from the UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS), Data Release 3 and optical photometry from Data Release 5 of the Sloan Digital Sky Survey (SDSS). Various features and limitations of the new UKIDSS data are examined, such as a problem affecting Petrosian magnitudes of extended sources. Selection limits in K- and r-band magnitude, K-band surface brightness and K-band radius are included explicitly in the 1/Vmax estimation of the space density and luminosity function. The bivariate brightness distribution in K-band absolute magnitude and surface brightness is presented and found to display a clear luminosity-surface brightness correlation that flattens at high luminosity and broadens at low luminosity, consistent with similar analyses at optical wavelengths. Best fitting Schechter function parameters for the K-band luminosity function are found to be M*-5log h=-23.17 +/- 0.04, alpha=-0.8...

  6. Epidemiological Survey on Porcine Cysticercosis in Nay Pyi Taw Area, Myanmar

    Directory of Open Access Journals (Sweden)

    Tin Aye Khaing

    2015-01-01

    Full Text Available Cross-sectional surveys were conducted to determine the prevalence and associated risk factors of Taenia solium cysticercosis in pigs within Nay Pyi Taw area, Myanmar. Meat inspection in three slaughterhouses, ELISA test, and questionnaire surveys were conducted in this study. Three hundred pigs were inspected in slaughterhouses and 364 pigs were randomly selected and examined from 203 households from three townships in Nay Pyi Taw area. The prevalence of porcine cysticercosis in meat inspection was 23.67% (71/300. Seroprevalence of T. solium cysticercosis in pigs in the study area was 15.93% (58/364. Significant associated risk factors with T. solium cysticercosis were gender (OR=3.0; 95% CI=1.7–5.4, increased age (OR=2.3; 95% CI=1.2–4.2, husbandry system (OR=5.1; 95% CI=2.4–11.2, feed type (OR=16.9; 95% CI=2.3–124.3, not using anthelmintics in pigs (OR=11.9; 95% CI=5.0–28.5, not using anthelmintics in owner (OR=2.5; 95% CI=1.4–4.4, no hand-washing before feeding (OR=31.5; 95% CI=4.3–230.9, and pork consumption of owner (OR=37.4; 95% CI=9.0–156.1 in the study area. This is the first report of porcine cysticercosis in Myanmar.

  7. Integrated magnetic, gravity, and GPR surveys to locate the probable source of hydrocarbon contamination in Sharm El-Sheikh area, south Sinai, Egypt

    Science.gov (United States)

    Morsy, Mona; Rashed, Mohamed

    2013-01-01

    Sharm El-Sheikh waters were suddenly hit by hydrocarbon spills which created a serious threat to the prosperous tourism industry in and around the city. Analysis of soil samples, water samples, and seabed samples collected in and around the contaminated bay area showed anomalous levels of hydrocarbons. An integrated geophysical investigation, using magnetic, gravity, and ground penetrating radar geophysical tools, was conducted in the headland overlooking the contaminated bay in order to delineate the possible subsurface source of contamination. The results of the geophysical investigations revealed three underground manmade reinforced concrete tanks and a complicated network of buried steel pipes in addition to other unidentified buried objects. The depths and dimensions of the discovered objects were determined. Geophysical investigations also revealed the presence of a north-south oblique slip fault running through the eastern part of the studied area. Excavations, conducted later on, confirmed the presence of one of the tanks delineated by the geophysical surveys.

  8. Noninvasive genetic population survey of snow leopards (Panthera uncia in Kangchenjunga conservation area, Shey Phoksundo National Park and surrounding buffer zones of Nepal

    Directory of Open Access Journals (Sweden)

    Karmacharya Dibesh B

    2011-11-01

    Full Text Available Abstract Background The endangered snow leopard is found throughout major mountain ranges of Central Asia, including the remote Himalayas. However, because of their elusive behavior, sparse distribution, and poor access to their habitat, there is a lack of reliable information on their population status and demography, particularly in Nepal. Therefore, we utilized noninvasive genetic techniques to conduct a preliminary snow leopard survey in two protected areas of Nepal. Results A total of 71 putative snow leopard scats were collected and analyzed from two different areas; Shey Phoksundo National Park (SPNP in the west and Kangchanjunga Conservation Area (KCA in the east. Nineteen (27% scats were genetically identified as snow leopards, and 10 (53% of these were successfully genotyped at 6 microsatellite loci. Two samples showed identical genotype profiles indicating a total of 9 individual snow leopards. Four individual snow leopards were identified in SPNP (1 male and 3 females and five (2 males and 3 females in KCA. Conclusions We were able to confirm the occurrence of snow leopards in both study areas and determine the minimum number present. This information can be used to design more in-depth population surveys that will enable estimation of snow leopard population abundance at these sites.

  9. [First aid for multiple trauma patients: investigative survey in the Firenze-Bologna area].

    Science.gov (United States)

    Crescioli, G L; Donati, D; Federici, A; Rasero, L

    1999-01-01

    Overall mortality ascribable to multiple traumas, that in Italy is responsible for about 8,000 death/year, is strictly dependent on the function of the so called Trauma Care System. This study reports on an epidemiological survey conducted in the urban area of Florence along a 23-month period (from Jan 97 to Nov 99), with the aim to identify the typology of traumas and the first aid care delivered to the person until hospital admission. These data were compared to those collected in the urban area of Bologna because the composition of the first-aid team is different, being nurses, in Bologna, an integral component of the first aid system. On a total of 118 multiple traumas, 17% was represented by isolated head trauma, while in 72% involvement of other organs was present in addition to the head; 11% of cases were abdominal or thoracic traumas, 1% of lower extremities. In 46% the cause of trauma was a car accident. The complexity of care delivered to the person with trauma was less in the Florence survey, as indicated by the immobilization of patients, performed in only 11% of cases as compared to 47% in Bologna, by the application of the cervical collar, applied in 12% versus 62% of traumas. Although the two samples are not strictly comparable, these data suggest that the presence of nurses in the Trauma Care System can be one of the elements of improvement of the quality of delivered care.

  10. Detailed Geomorphological survey in a recently deglaciated area by Terrestrial Laser Scanner

    Science.gov (United States)

    Rocha Francelino, Marcio; Schünemann, Adriano Luis; Gonçalves Reynaud Schaefer, Carlos Ernesto; Inacio Fernandes Filho, Elpidio; Araujo Almeida, Pedro Henrique; Thomazini, Andre

    2017-04-01

    High resolution topographic surveys are important tools to model landscapes, especially in zones subjected to strong environmental changes, such as Antarctica, where landforms are highly influenced by glacial retreat and permafrost melting. The aim of this work was to map geomorphological features in Keller Peninsula, King George Island, Maritime Antarctica, by using Terrestrial Laser Scanner. The survey was performed in 2014/2015 and 2015/2016 during the austral summer, by means of a Terrestrial Laser Scanner (TLS) model VZ-1000 of Rigel. In order to cover the entire Peninsula, the TLS equipment was installed in 81 different points. After processing, a cloud with more than 5 million points was generated, spatially well distributed, enabling the generalization process to obtain surface models with high performance. Hence, ultra-details of the different landscape features on the peninsula were studied. Results obtained were compared with a geomorphological map previously produced from the analysis of aerial photographs in the same area. Different limits were observed between the two techniques, mostly regarding sizes, allowing the identification of new landscape features. Depositional features are the most common landforms in Keller Peninsula, encompassing scree slopes, protalus, morainas and talus. Rock outcrops are common, forming prominent scarpments, feeding talus and protalus. Small patterned-ground soil areas were distinguished by the TLS. The use of TLS allowed the mapping of landforms with high resolution needed for environmental monitoring.

  11. Cathode depth sensing in CZT detectors

    Science.gov (United States)

    Hong, JaeSub; Bellm, Eric C.; Grindlay, Jonathan E.; Narita, Tomohiko

    2004-02-01

    Measuring the depth of interaction in thick Cadmium-Zinc-Telluride (CZT) detectors allows improved imaging and spectroscopy for hard X-ray imaging above 100 keV. The Energetic X-ray Imaging Survey Telescope (EXIST) will employ relatively thick (5 - 10 mm) CZT detectors, which are required to perform the broad energy-band sky survey. Interaction depth information is needed to correct events to the detector "focal plane" for correct imaging and can be used to improve the energy resolution of the detector at high energies by allowing event-based corrections for incomplete charge collection. Background rejection is also improved by allowing low energy events from the rear and sides of the detector to be rejected. We present experimental results of intereaction depth sensing in a 5 mm thick pixellated Au-contact IMARAD CZT detector. The depth sensing was done by making simultaneous measurements of cathode and anode signals, where the interaction depth at a given energy is proportional to the ratio of cathode/anode signals. We demonstrate how a simple empirical formula describing the event distributions in the cathode/anode signal space can dramatically improve the energy resolution. We also estimate the energy and depth resolution of the detector as a function of the energy and the interaction depth. We also show a depth-sensing prototype system currently under development for EXIST in which cathode signals from 8, 16 or 32 crystals can be read-out by a small multi-channel ASIC board that is vertically edge-mounted on the cathode electrode along every second CZT crystal boundary. This allows CZT crystals to be tiled contiguously with minimum impact on throughput of incoming photons. The robust packaging is crucial in EXIST, which will employ very large area imaging CZT detector arrays.

  12. What is behind smoker support for new smokefree areas? National survey data

    Directory of Open Access Journals (Sweden)

    Wilson Nick

    2010-08-01

    Full Text Available Abstract Background Some countries have started to extend indoor smokefree laws to cover cars and various outdoor settings. However, policy-modifiable factors around smoker support for these new laws are not well described. Methods The New Zealand (NZ arm of the International Tobacco Control Policy Evaluation Survey (ITC Project derives its sample from the NZ Health Survey (a national sample. From this sample we surveyed adult smokers (n = 1376. Results For the six settings considered, 59% of smokers supported at least three new completely smokefree areas. Only 2% favoured smoking being allowed in all the six new settings. Support among Maori, Pacific and Asian smokers relative to European smokers was elevated in multivariate analyses, but confidence intervals often included 1.0. Also in the multivariate analyses, "strong support" by smokers for new smokefree area laws was associated with greater knowledge of the second-hand smoke (SHS hazard, and with behaviours to reduce SHS exposure towards others. Strong support was also associated with reporting having smokefree cars (aOR = 1.68, 95% CI = 1.21 - 2.34; and support for tobacco control regulatory measures by government (aOR = 1.63, 95% CI = 1.32 - 2.01. There was also stronger support by smokers with a form of financial stress (not spending on household essentials. Conclusions Smokers from a range of population groups can show majority support for new outdoor and smokefree car laws. Some of these findings are consistent with the use of public health strategies to support new smokefree laws, such as enhancing public knowledge of the second-hand smoke hazard.

  13. Uncertainties estimation in surveying measurands: application to lengths, perimeters and areas

    Science.gov (United States)

    Covián, E.; Puente, V.; Casero, M.

    2017-10-01

    The present paper develops a series of methods for the estimation of uncertainty when measuring certain measurands of interest in surveying practice, such as points elevation given a planimetric position within a triangle mesh, 2D and 3D lengths (including perimeters enclosures), 2D areas (horizontal surfaces) and 3D areas (natural surfaces). The basis for the proposed methodology is the law of propagation of variance–covariance, which, applied to the corresponding model for each measurand, allows calculating the resulting uncertainty from known measurement errors. The methods are tested first in a small example, with a limited number of measurement points, and then in two real-life measurements. In addition, the proposed methods have been incorporated to commercial software used in the field of surveying engineering and focused on the creation of digital terrain models. The aim of this evolution is, firstly, to comply with the guidelines of the BIPM (Bureau International des Poids et Mesures), as the international reference agency in the field of metrology, in relation to the determination and expression of uncertainty; and secondly, to improve the quality of the measurement by indicating the uncertainty associated with a given level of confidence. The conceptual and mathematical developments for the uncertainty estimation in the aforementioned cases were conducted by researchers from the AssIST group at the University of Oviedo, eventually resulting in several different mathematical algorithms implemented in the form of MATLAB code. Based on these prototypes, technicians incorporated the referred functionality to commercial software, developed in C++. As a result of this collaboration, in early 2016 a new version of this commercial software was made available, which will be the first, as far as the authors are aware, that incorporates the possibility of estimating the uncertainty for a given level of confidence when computing the aforementioned surveying

  14. An experimental aeromagnetic survey in the Volturno valley area (South-Eastern Latium

    Directory of Open Access Journals (Sweden)

    G. Caneva

    1998-06-01

    Full Text Available A helicopter-borne experimental aeromagnetic survey, covering an area of 200 km2, was performed in the Volturno valley area north of the Roccamonfina volcano and south of Venafro in November 1994. Although severe logistical, instrumental and meteorological conditions significantly reduced the planned coverage, the processed magnetic image still shows a remarkable improvement in the description of the geological and structural features of the area in comparison with previous regional aeromagnetic data. A multi-directional shaded relief anomaly map displays two moderately positive NW magnetic bands associated with lavas, pyroclastics and dykes of the Roccamonfina volcanic district together with N-S, NNE-SSW and NE-SW lineations. A comparative magnetic-geologic map allows correlation with known Pleistocene faults and reveals the existence, especially in the area between Sesto Campano and Presenzano, of a larger presence of high susceptibility dykes than seen in the outcrop, which is dominated by non-magnetic carbonatic rocks. We interpret the curvilinear and intricate pattern of magnetic lineaments as suggestive of an extensional setting along the main NW structures with previous strike slip components and of tectonic activity along a N-S fabric; the latter has no superficial evidence and has also been used for magma upwelling. Overall, this local scale investigation shows both the utility and the need for further efforts in high resolution aeromagnetics in Italy both for geological and environmental purposes similar to those successfully carried out in many other countries throughout the world.

  15. Ecological survey of M-Field, Edgewood Area Aberdeen Proving Ground, Maryland

    Energy Technology Data Exchange (ETDEWEB)

    Downs, J.L.; Eberhardt, L.E.; Fitzner, R.E.; Rogers, L.E.

    1991-12-01

    An ecological survey was conducted on M-Field, at the Edgewood Area, Aberdeen Proving Ground, Maryland. M-Field is used routinely to test army smokes and obscurants, including brass flakes, carbon fibers, and fog oils. The field has been used for testing purposes for the past 40 years, but little documented history is available. Under current environmental regulations, the test field must be assessed periodically to document the presence or potential use of the area by threatened and endangered species. The M-Field area is approximately 370 acres and is part of the US Army`s Edgewood Area at Aberdeen Proving Ground in Harford County, Maryland. The grass-covered field is primarily lowlands with elevations from about 1.0 to 8 m above sea level, and several buildings and structures are present on the field. The ecological assessment of M-Field was conducted in three stages, beginning with a preliminary site visit in May to assess sampling requirements. Two field site visits were made June 3--7, and August 12--15, 1991, to identify the biota existing on the site. Data were gathered on vegetation, small mammals, invertebrates, birds, large mammals, amphibians, and reptiles.

  16. Ecological survey of M-Field, Edgewood Area Aberdeen Proving Ground, Maryland

    Energy Technology Data Exchange (ETDEWEB)

    Downs, J.L.; Eberhardt, L.E.; Fitzner, R.E.; Rogers, L.E.

    1991-12-01

    An ecological survey was conducted on M-Field, at the Edgewood Area, Aberdeen Proving Ground, Maryland. M-Field is used routinely to test army smokes and obscurants, including brass flakes, carbon fibers, and fog oils. The field has been used for testing purposes for the past 40 years, but little documented history is available. Under current environmental regulations, the test field must be assessed periodically to document the presence or potential use of the area by threatened and endangered species. The M-Field area is approximately 370 acres and is part of the US Army's Edgewood Area at Aberdeen Proving Ground in Harford County, Maryland. The grass-covered field is primarily lowlands with elevations from about 1.0 to 8 m above sea level, and several buildings and structures are present on the field. The ecological assessment of M-Field was conducted in three stages, beginning with a preliminary site visit in May to assess sampling requirements. Two field site visits were made June 3--7, and August 12--15, 1991, to identify the biota existing on the site. Data were gathered on vegetation, small mammals, invertebrates, birds, large mammals, amphibians, and reptiles.

  17. Preliminary analysis of gravity and aeromagnetic surveys of the Timber Mountain Area, southern Nevada

    Energy Technology Data Exchange (ETDEWEB)

    Kane, M.F.; Webring, M.W.; Bhattacharyya, B.K.

    1981-12-31

    Recent (1977 to 1978) gravity and aeromagnetic surveys of the Timber Mountain region, southern Nevada, have revealed new details of subsurface structure and lithology. The data strongly suggest that deformation caused by volcanic events has been accommodated along straight-line faults combining in such a fashion as to given a curvilinear appearance to regional structure. The magnetic data suggest that rock units in the central graben and along the southeast margin of Timber Mountain may have been altered, perhaps thermally, from their original state. The gravity data indicate that the south part of the Timber Mountain is underlain by relatively dense rock possibly intrusive rock, like that which crops out along its southeast side. The gravity data also suggest that the Silent Canyon caldera may extend considerably south of its presently indicated southern limit and may underlie much of the area of Timber Mountain. The moat areas appear to be more rectangular or triangular than annular in shape. The southern part of Timber Mountain caldera is separated from the Yucca Mountain area to the south by a triangular horst. The structural relations of the rock units making up the horst are complex. Several linear terrain features in the southern part of the caldera area are closely aligned with geophysical features, implying that the terrain features are fault-controlled.

  18. Data Summary Report for the Semiannual Tritium Survey for Fourmile Branch and the F- and H-Area Seeplines

    Energy Technology Data Exchange (ETDEWEB)

    Koch, J. II [Westinghouse Savannah River Company, AIKEN, SC (United States) Exploration Resources

    1996-12-16

    This report presents a summary of the definitive data validation and verification for the Semiannual Tritium Survey for Fourmile Branch and the F- and H-Area Seeplines. The survey was performed at the request of the WSRC ERD and conducted by WSRC/ESS. This report was prepared under the direction of EPD/EMS.

  19. Food Insecurity, a Determinant of Obesity? - an Analysis from a Population-Based Survey in the Paris Metropolitan Area, 2010

    National Research Council Canada - National Science Library

    Martin-Fernandez, Judith; Caillavet, France; Lhuissier, Anne; Chauvin, Pierre

    2014-01-01

    .... : We used data from third wave of the Health, Inequalities and Social Ruptures (SIRS) cohort study, a longitudinal population-based, representative health and socioepidemiological survey of the general population in the Paris metropolitan area...

  20. Radon gas monitoring survey for the determination of Radon Prone Areas in Lombardia

    Energy Technology Data Exchange (ETDEWEB)

    Bartolo, D. de; Alberici, A.; Gallini, R.; Maggioni, T.; Mondini, A.; Zini, E. [A.R.P.A. della Lombardia, Milano (Italy); Arrigoni, S.; Cazzaniga, P.; Cugini, A.; Gallinari, G.; Olivieri, F.; Romanelli, M. [A.R.P.A. della Lombardia, Dipt. di Bergamo, Bergamo (Italy)

    2006-07-01

    Region Lombardia has carried out a radon gas monitoring survey on its territory to localize radon prone areas as by law 241/00 enacted. To plan the survey, the Lombardia territory has been divided into two different types according to the morphology as well as the presence of a substratum of rock. The area with hills and mountains has been investigated with more attention compared to the plain because we can assume higher variability in radon concentration distribution due to the geological and morphological characteristics. The territory subdivision was based on the standard grid.. of the techniregional cartography (8 x 5 km). To perform radon indoor concentration measurements about 3600 measuring points were selected. They are located at the ground floor of buildings with the characteristics to ensure the tests are representative and comparable. It has also been taken into account evaluations done with previous surveys in accordance with the defined specification of the sites. The measurements were carried out using C.R. 39 trace detector technique. The detectors were contained in closed plastic canisters and they were positioned in situ for one year and measured each semester. The detectors were chemically treated and the traces counted using the automated optical system installed at the Radiometric Laboratory of the A.R.P.A. Department in Bergamo. The instrument accuracy and precision were evaluated using data obtained with different methods: using detectors exposed to radon known concentrations, participating to an international intercomparison as well as exposing the detector in a national calibration centre. Due to the large amount of detectors involved, a particular attention was taken for the detector homogeneity response and for the optimization of the analysis parameters. For further investigating the reliability of the measurements, two detectors were used in parallel in 10% of the tests. The results show higher values in the areas of Bergamo, Brescia

  1. Seismic refraction surveys for coal exploration in the Homehills, Hawkdun and Roxburgh areas of Central Otago

    Energy Technology Data Exchange (ETDEWEB)

    Broadbent, M.

    1982-09-01

    Seismic refraction surveys were made during 1979 and 1980 in the Homehills, Hawkdun, and Roxburgh basins formed in the Mesozoic and Paleozoic rocks of Central Otago. They were made to help define the extent of Tertiary coal deposits by determining thicknesses of Cenozoic rocks. The extent of the surveys in the three basins were 12.1, 8.8, and 8.2 line kilometres distributed over 9, 6 and 7 lines respectively. The seismic observations and sonic logs from drill holes were used to derive vertical sections showing distributions of compressional wave velocity with depth. Velocities detected in the Homehills and Hawkdun basins of below 0.5 k/s were usually associated with soil layers, those from 1.0 to 1.5 km/s with Quaternary sediments which are not water saturated, from 1.6 to 1.9 km/s with Tertiary lacustrine or littoral sediments, those from 2.1 to 2.6 km/s with late Tertiary or Quarternary gravels, and those exceedings 3.2 km/s with Mesozoic basement rocks. No overall one-to-one relationship between velocities detected in the range 2.6 to 3.2 km/s and rock types was evident. Velocities encountered at Roxburgh included those between 0.5 and 1.5 km/s which were associated with non-saturated Cenozoic sediments, those between 1.5 and 2.3 km/s representing saturated Cenozoic sediments, those over 3.0 km/s representing Paleozoic schist, and those between 2.3 and 3.0 km/s for which a clear relationship with rock type was not established. Survey results indicate that most of the western boundary of the Homehills basin is unlikely to be associated with a major fault, but the north-east boundary of the basin is associated with a reverse fault having a throw of between 160 and 170 metres. A fault of throw exceeding 300 m has been detected separating the Cenozoic filled Homehills basin, with its base at about 500 m above sea level, from the much deeper Ida Valley basin. The maximum thickness of Cenozoic sediments in the Homehills basin is about 250 m. (16 refs.)

  2. Searching for the effects of the May-June 2012 Emilia seismic sequence (northern Italy: medium-depth deformation structures at the periphery of the epicentral area

    Directory of Open Access Journals (Sweden)

    Lisa Borgatti

    2012-10-01

    Full Text Available In 2012, a seismic sequence occurred in the lowlands of the Emilia-Romagna Region (northern Italy, between the borders of the Modena, Ferrara and Bologna Provinces. It consisted of seven mainshocks (5.9 > Ml > 5 that were recorded between May 20 and 29, 2012 [INGV 2012a] and 2,200 minor earthquakes [INGV 2012b]. An interferometric analysis [Bignami et al. 2012, Salvi et al. 2012, this volume] highlighted three main deformation areas, each of which was 12 km wide (from S to N and 10 km to 20 km long in an ESE-WNW to E-W direction, thus affecting an area of about 600 km2 (Figure 1. Field and aerial geological surveys recorded numerous surficial effects, such as: (i sediment liquefaction [Crespellani et al. 2012]; (ii localized ground fissures resembling surficial faulting [Fioravante and Giretti 2012] (Figure 2; (iii groundwater levels rising up to 400 cm above the local ground level in phreatic wells during the mainshocks (lower values were observed in confined aquifers; and (iv dormancy of previously known sinkholes [Borgatti et al. 2010, Cremonini 2010a, and references therein]. Some of the observed surface phenomena were previously recorded as coseismic effects during the earthquakes of Ferrara (1570 and Argenta (1624 [Boschi et al. 1995, Galli 2000], together with the early rising of the water level of the Po River in the Stellata section. […

  3. Combining Geological and Geophysical Surveys with Cave Explorations for the Assessment of the Sinkhole Susceptibility in Coastal Areas

    Science.gov (United States)

    Margiotta, Stefano; Negri, Sergio; Pagliara, Antonio; Parise, Mario; Quarta, Tatiana A. M.

    2013-04-01

    the required resolution and depth of penetration, but also because major pitfalls may arise in such geologically complex areas, from the speculative interpretation of geophysical anomalies as geological features. Data integration from different geophysical methods is essential to remove these interpretation ambiguities, caused by large near-surface gradients and heterogeneities in the soil properties, as well as by water table. In the case of Torre Castiglione, we illustrate here an investigation procedure consisting in the sequential application and integrated interpretation of several geophysical methods (Electrical Resistivity Tomography and Seismic Reflection measurements) for locating sinkholes and for the characterization of the subsoil. Geophysical surveys allowed us to obtain a detailed geological model in the study area, cross-checked by the outcomes of several boreholes, and to detect the presence of underground voids, that are characterized by low resistivity values (<100 ohm*m) and a seismic velocity of about 1500 m/s.

  4. Bathymetric surveys and area/capacity tables of water-supply reservoirs for the city of Cameron, Missouri, July 2013

    Science.gov (United States)

    Huizinga, Richard J.

    2014-01-01

    Years of sediment accumulation and dry conditions in recent years have led to the decline of water levels and capacities for many water-supply reservoirs in Missouri, and have caused renewed interest in modernizing outdated area/capacity tables for these reservoirs. The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, surveyed the bathymetry of the four water-supply reservoirs used by the city of Cameron, Missouri, in July 2013. The data were used to provide water managers with area/capacity tables and bathymetric maps of the reservoirs at the time of the surveys.

  5. Survey of Baylisascaris spp. in captive striped skunks (Mephitis mephitis) in some European areas.

    Science.gov (United States)

    d'Ovidio, D; Pantchev, N; Noviello, E; Del Prete, L; Maurelli, M P; Cringoli, G; Rinaldi, Laura

    2017-02-01

    Skunks are popular carnivore species kept both in zoological institutions and in households where they are hand raised as exotic pets. These small carnivores are considered the main definitive hosts of the roundworm Baylisascaris columnaris. The purpose of this survey was to investigate the occurrence of Baylisascaris spp. in striped skunks kept as pets or in private zoo collections in some European areas. Copromicroscopic data from two laboratories, one in Italy and one in Germany, were used. A total of 60 animals were selected. Samples came from Germany (n = 30), Italy (n = 23), United Kingdom (n = 5), Austria (n = 1), and the Netherlands (n = 1). Twenty-eight animals were certainly kept as pets in private households in Italy and the UK. Fifteen out of 60 animals (25%) were positive for Baylisascaris spp. Molecular identification of adult parasites was performed in ten of those animals, revealing B. columnaris in all cases. To the authors' knowledge, this is the first survey of Baylisascaris spp. in captive skunks in Europe.

  6. CALIFA, the Calar Alto Legacy Integral Field Area survey: IV. Third Public data release

    CERN Document Server

    Sánchez, S F; Zibetti, S; Walcher, C J; Husemann, B; Mendoza, M A; Galbany, L; Falcón-Barroso, J; Mast, D; Aceituno, J; Aguerri, J A L; Alves, J; Amorim, A L; Ascasibar, Y; Barrado-Navascues, D; Barrera-Ballesteros, J; Bekeraite, S; Bland-Hawthorn, J; Díaz, M Cano; Fernandes, R Cid; Cavichia, O; Cortijo, C; Dannerbauer, H; Demleitner, M; Díaz, A; Dettmar, R J; de Lorenzo-Cáceres, A; del Olmo, A; Gallazzi, A; García-Lorenzo, B; de Paz, A Gil; Delgado, R González; Holmes, L; Iglésias-Páramo, J; Kehrig, C; Kelz, A; Kennicutt, R C; Kleemann, B; Lacerda, E A D; Fernández, R López; Sánchez, A R López; Lyubenova, M; Marino, R; Márquez, I; Mendez-Abreu, J; Mollá, M; Minakata, R Ortega; Torres-Papaqui, J P; Pérez, E; Rosales-Ortega, F F; Roth, M M; Sánchez-Blázquez, P; Schilling, U; Spekkens, K; Asari, N Vale; Bosch, R C E van den; van de Ven, G; Vilchez, J M; Wild, V; Wisotzki, L; Yıldırım, A; Ziegler, B

    2016-01-01

    This paper describes the Third Public Data Release (DR3) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. Science-grade quality data for 667 galaxies are made public, including the 200 galaxies of the Second Public Data Release (DR2). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5m telescope at the Calar Alto Observatory. Three different spectral setups are available, i) a low-resolution V500 setup covering the wavelength range 3749-7500 AA (4240-7140 AA unvignetted) with a spectral resolution of 6.0 AA (FWHM), for 646 galaxies, ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 AA (3650-4620 AA unvignetted) with a spectral resolution of 2.3 AA (FWHM), for 484 galaxies, and iii) the combination of the cubes from both setups (called COMBO), with a spectral resolution of 6.0 AA and a wavelength range between 3700-7500 AA (3700-7140 AA unvignetted), for 446 galaxies. The Main Sample, selected and observed according to the CALIFA survey s...

  7. Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey

    CERN Document Server

    Pinfield, D J; Tamura, M; Leggett, S K; Lodieu, N; Lucas, P W; Mortlock, D J; Warren, S J; Homeier, D; Ishi, M; Deacon, N R; McMahon, R G; Hewett, P C; Osorio, M R Zapatero; Martín, E L; Jones, H R A; Venemans, B P; Day-Jones, A; Dobbie, P D; Folkes, S L; Dye, S; Allard, F; Baraffe, I; Navascues, D Barrado y; Casewell, S L; Chiu, K; Chabrier, G; Clarke, F; Hodgkin, S T; Magazzù, A; McCaughrean, M J; Moraux, E; Nakajima, T; Pavlenko, Y; Tinney, C G

    2008-01-01

    We present the discovery of fifteen new T2.5-T7.5 dwarfs (with estimated distances between ~24-93pc, identified in the first three main data releases of the UKIRT Infrared Deep Sky Survey. This brings the total number of T dwarfs discovered in the Large Area Survey (to date) to 28. These discoveries are confirmed by near infrared spectroscopy, from which we derive spectral types on the unified scheme of Burgasser et al. (2006). Seven of the new T dwarfs have spectral types of T2.5-T4.5, five have spectral types of T5-T5.5, one is a T6.5p, and two are T7-7.5. We assess spectral morphology and colours to identify T dwarfs in our sample that may have non-typical physical properties (by comparison to solar neighbourhood populations). The colours of the full sample of LAS T dwarfs show a possible trend to bluer Y-J with decreasing effective temperature beyond T8. By accounting for the main sources of incompleteness (selection, follow-up and spatial) as well as the effects of unresolved binarity and Malmquist bias,...

  8. Olympic Coast National Marine Sanctuary - mos110_0204b.tif - Multibeam backscatter mosaic from survey area 110_0204b

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A multibeam backscatter image (0-35 m water depths) mosaiced from hydrographic data collected during a August/September 2003seafloor survey. A Reson 8101 multibeam...

  9. Olympic Coast National Marine Sanctuary - mos110_0204c.tif - Multibeam backscatter mosaic from survey area 110_0204c

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A multibeam backscatter image (0-35 m water depths) mosaiced from hydrographic data collected during a August/September 2003seafloor survey. A Reson 8101 multibeam...

  10. Olympic Coast National Marine Sanctuary - mos110_0204a.tif - Multibeam backscatter mosaic from survey area 110_0204a

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A multibeam backscatter image (0-35 m water depths) mosaiced from hydrographic data collected during a July/August 2002seafloor survey. A Reson 8101 multibeam...

  11. Survey on welfare of dairy cow in tie-stalls in mountain area

    Directory of Open Access Journals (Sweden)

    Stefano Bovolenta

    2010-01-01

    Full Text Available The aim of the survey was to study the effect of Alpine pasture and breed on welfare of dairy cattle bred in tie-stalls in mountain area of Friuli Venezia Giulia Region. Twenty-four representative farms were divided into 4 groups following a factorial design: 2 managements (with vs. without summer grazing x 2 breeds (Italian Simmental vs. Italian Brown. Data were collected following a protocol that considers direct animals’ measures or remarks, buildings and equipments information. The results showed that summer grazing affected some physical parameters - BCS, claw conformation and injuries - and some behaviour parameters such as rising movements. In this trial the breed did not seem to markedly influence cows’ welfare, except for BCS and lie down time.

  12. [Survey of Trichophyton tonsurans Infection in the Kyushu, Chugoku and Shikoku areas of Japan].

    Science.gov (United States)

    Nishimoto, Katsutaro; Honma, Kizou; Shinoda, Hidekazu; Ogasawara, Yumie

    2005-01-01

    A survey on the infestation of dermatophytosis caused by T. tonsurans was made by inquiry to dermatologists. Patients strongly suggestive of having skin lesions due to T. tonsurans were seen in all areas examined, and were mainly schoolboys, including those practicing judo, of high schools and junior high schools. In Nagasaki, a mycological examination was done on 21 judo students and their teacher in a high school in which a patient with T. tonsurans infection was mycologically confirmed and treated by antimycotics. Mycological examinations failed to isolate T. tonsurans, but even after the examination sporadic cases were reported among the group members. In Saga prefecture, Kyushu, a mycological screening for T. tonsurans infection among judoists and wrestlers in 13 high-schools and 7 junior high schools was done using the blush sampling method. Fifty-six strains of T. tonsurans were isolated from 248 students. The problems concerning the control of this infection were discussed.

  13. Photogeologic and thermal infrared reconnaissance surveys of the Los Negritos-Ixtlan de los Hervores geothermal area, Michoacan, Mexico

    Science.gov (United States)

    Gomez, Valle R.; Friedman, J.D.; Gawarecki, S.J.; Banwell, C.J.

    1970-01-01

    hydrothermal alteration and deposition at the surface is identifiable on the infrared imagery of this area, closey related spatially to a resistivity low at depth. Extinct geothermal areas near El Salitre, Ixtlan, and farther west at San Gregorio are clearly delineated on both infrared images and infrared ektachrome photographs. Predawn infrared images also show high-angle fault zones suggesting the dominance of block tectonics in much of the area. Special image enhancement techniques applied to the original magnetic tape records will be required for more precise identification of warm ground zones and for a qualitative or semiquantitative estimate of ground radiance associated with anomalously high convective heat flow. ?? 1971.

  14. Remote sensing survey of Chinese tallow tree in the Toledo Bend Reservoir area, Louisiana and Texas

    Science.gov (United States)

    Ramsey, Elijah W.; Rangoonwala, Amina; Bannister, Terri; Suzuoki, Yukihiro

    2013-01-01

    We applied Hyperion sensor satellite data acquired by the National Aeronautics and Space Administration’s Earth Observing-1 (EO-1) satellite in conjunction with reconnaissance surveys to map the occurrences of the invasive Chinese tallow tree (Triadica sebifera) in the Toledo Bend Reservoir study area of northwestern Louisiana and northeastern Texas. The rationale for application of high spectral resolution EO-1 Hyperion data was based on the successful use of Hyperion data in the mapping of Chinese tallow tree in southwestern Louisiana in 2005. In contrast to the single Hyperion image used in the 2005 project, more than 20 EO-1 Hyperion and Advanced Land Imager (ALI) images of the study area were collected in 2009 and 2010 during the fall senescence when Chinese tallow tree leaves turn red. Atmospherically corrected reflectance spectra of Hyperion imagery collected at ground and aerial observation locations provided the input datasets used in the program for spectral discrimination analysis. Discrimination analysis was used to identify spectral indicator sets to best explain variance contained in the input databases. The expectation was that at least one set of Hyperion-based indicator spectra would uniquely identify occurrences of red-leaf Chinese tallow tree; however, no combination of Hyperion-based reflectance datasets produced a unique identifier. The inability to discover a unique spectral indicator resulted primarily from relatively sparse coverage by red-leaf Chinese tallow tree within the study area (percentage of coverage was less than 5 percent per 30- by 30-meter Hyperion pixel). To enhance the performance of the spectral discrimination analysis, leaf and canopy spectra of Chinese tallow tree were added to the input datasets to guide the indicator selection. In addition, input databases were segregated by land class obtained from an ALI-based landcover classification in order to reduce the input variance and to promote spectral discrimination of red

  15. Endoscopic survey of esophageal cancer in a high-risk area of China

    Institute of Scientific and Technical Information of China (English)

    Xu-Jing Lu; Jun Hou; Zhi-Feng Chen; Cui-Lan Guo; Shao-Sen Li; Wen-Long Bai; Guo-Liang Jin; Yu-Xia Wang; Fan-Shu Meng; Feng Gao

    2004-01-01

    AIM: To characterize the histological types of esophageal and cardiac mucosa by endoscopic survey of a population in a high-risk area of esophageal cancer of China.METHODS: A selected cohort of residents in Cixian County during December 2001 and May 2002 was surveyed by using Lugol′s staining, followed by computer-based statistical analysis of the data with SPSS 10.0 software.RESULTS: Histologically, the detection rates of squamous epithelial acanthosis, squamous epithelial atrophy, and basal cell hyperplasia in the esophagus were 1.9% (38/2 013),0.1% (3/2 013) and 0.9% (18/2 013) respectively, and those of mild, moderate, and severe esophagitis were 34.9% (703/2 013), 1.6% (33/2 013) and 0.2% (2/2 013)respectively. Mild, moderate, and severe esophageal dysplasia were detected in 8.6% (172/2 013), 7.8% (157/2 013) and 2.6% (53/2 013) respectively in the selected population,whereas in situ carcinoma, intramucosal carcinoma, invasive squamous carcinoma of the esophagus in 2.5% (50/2 013),0.2% (4/2 013) and 0.7% (14/2 013) respectively. The detection rates of non-atrophic gastritis and atrophic gastritis of the cardia were 36.3% (730/2 013) and 11.5% (232/2 013) respectively,with mild and severe dysplasia of the cardia detected in 2.5% (51/2 013) and 0.8% (17/2 013), respectively, in this population; the rates of intramucosal adenocarcinoma and invasive adenocarcinoma of the cardia were 0.1% (3/2 013)and 0.8% (17/2 013) respectively. The detection rate of esophageal cancer at early stage was 79.4% (54/68). The survey rate (ratio of examined population to expected population) was 73.8% (2 013/2 725).CONCLUSION: Histologic types of the esophageal and cardiac mucosa were characterized by endoscopic survey in a high-risk population of esophageal cancer, which may help the early detection and treatment of esophageal and cardiac cancers and dysplasia, and reduce the mortality of such malignancies.

  16. Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey

    Science.gov (United States)

    Pinfield, D. J.; Burningham, B.; Tamura, M.; Leggett, S. K.; Lodieu, N.; Lucas, P. W.; Mortlock, D. J.; Warren, S. J.; Homeier, D.; Ishii, M.; Deacon, N. R.; McMahon, R. G.; Hewett, P. C.; Osori, M. R. Zapatero; Martin, E. L.; Jones, H. R. A.; Venemans, B. P.; Day-Jones, A. C.; Dobbie, P. D.; Folkes, S. L.; Dye, S.; Allard, F.; Baraffe, I.; Barrado Y Navascués, D.; Casewell, S. L.; Chiu, K.; Chabrier, G.; Clarke, F.; Hodgkin, S. T.; Magazzù, A.; McCaughrean, M. J.; Nakajima, T.; Pavlenko, Y.; Tinney, C. G.

    2008-10-01

    We present the discovery of 15 new T2.5-T7.5 dwarfs (with estimated distances ~24-93pc), identified in the first three main data releases of the United Kingdom Infrared Telescope (UKIRT) Infrared Deep Sky Survey. This brings the total number of T dwarfs discovered in the Large Area Survey (LAS) (to date) to 28. These discoveries are confirmed by near-infrared spectroscopy, from which we derive spectral types on the unified scheme of Burgasser et al. Seven of the new T dwarfs have spectral types of T2.5-T4.5, five have spectral types of T5-T5.5, one is a T6.5p and two are T7-7.5. We assess spectral morphology and colours to identify T dwarfs in our sample that may have non-typical physical properties (by comparison to solar neighbourhood populations), and find that three of these new T dwarfs may have unusual metallicity, two may have low surface gravity, and one may have high surface gravity. The colours of the full sample of LAS T dwarfs show a possible trend to bluer Y - J with decreasing effective temperature, and some interesting colour changes in J - H and z - J (deserving further investigation) beyond T8. The LAS T dwarf sample from the first and second main data releases show good evidence for a good level of completion to J = 19. By accounting for the main sources of incompleteness (selection, follow-up and spatial) as well as the effects of unresolved binarity, Malmquist and Eddington bias, we estimate that there are 17 +/- 4 >= T 4 dwarfs in the J <= 19 volume of the LAS second data release. This value is most consistent with theoretical predictions if the substellar mass function exponent α (dN/dm ~ m-α) lies between -1.0 and 0. This is consistent with the latest 2-Micron All Sky Survey (2MASS)/Sloan Digital Sky Survey (SDSS) constraint (which is based on lower number statistics) and is significantly lower than the α ~ 1.0 suggested by L dwarf field populations, which is possibly a result of the lower mass range probed by the T dwarf class.

  17. A microtremor survey to define the subsoil structure in a mud volcano areas

    Science.gov (United States)

    Panzera, Francesco; D'Amico, Sebastiano; Lupi, Matteo; Karyono, Karyono; Mazzini, Adriano

    2017-04-01

    Mud erupting systems have been observed and studied in different localities on the planet. They are characterized by emissions of fluids and fragmented sedimentary rocks creating large structures with different morphologies. This is mainly due to the presence of clay-bearing strata that can be buoyant in the surrounding regions and over-pressured fluids that facilitate the formation of diapirs through sedimentary rocks. In this study, we investigate the Lusi mud erupting system mainly by using ambient vibration methods. In particular, thickness of the sediments and the body wave velocities have been investigated. Results are integrated with gravimetry and electrical resistivity data in order to locate the main geological discontinuities in the area as well as to reconstruct a 3D model of the buried structure. The approach commonly used for this type of studies is based on the ratio of the horizontal to vertical components of ground motion (HVSR) and on passive array techniques. The HVSR generally enables to recognize peaks that point out to the fundamental frequency of the site, which usually fit quite well the theoretical resonance curves. The combination of HVSR and shear wave velocity, coming from passive array techniques, enables to collect valuable information about the subsurface structures. Here we present new data collected at the mud volcano and sedimentary hosted hydrothermal system sites in order to investigate the depths of the main discontinuities and of the hypothesized hydrocarbon reservoirs. We present the case study of Salse di Nirano (northen Italy), Salinelle (Mt. Etna, Sicily) and Lusi hydrothermal systems (Indonesia). Our results indicate that the ambient vibrations study approach represents a swift and simplified methods that provides quick information on the shallow subsoil structure of the investigated areas.

  18. Draped aeromagnetic survey in Transantarctic Mountains over the area of the Butcher Ridge igneous complex showing extent of underlying mafic intrusion

    Science.gov (United States)

    Behrendt, John C.; Damaske, D.; Finn, C.A.; Kyle, P.; Wilson, T.J.

    2002-01-01

    A draped aeromagnetic survey over the area surrounding the Butcher Ridge igneous complex (BRIC), Transantarctic Mountains, was acquired in 1997-1998 as part of a larger Transantarctic Mountains Aerogeophysical Research Activity survey. The BRIC is a sill-like hypoabyssal intrusion ranging in composition from tholeiitic basalt to rhyolite. An 40Ar/39 Ar age of 174 Ma and the chemical character of the basaltic rocks show the BRIC to be part of the widespread Jurassic Ferrar suite of continental tholeiitic rocks, that extends for 3500 km across Antarctica. The aeromagnetic survey shows a horseshoe-shaped pattern of anomalies reaching amplitudes as great as 1900 nT generally associated with the bedrock topography where it is exposed. It is apparent that the high-amplitude anomaly pattern is more extensive than the 10-km-long exposed outcrop, first crossed by a single 1990 aeromagnetic profile. The highest-amplitude anomalies appear south of the profile acquired in 1990 and extend out of the survey area. The new aeromagnetic data allow determination of the extent of the interpreted Butcher mafic(?) intrusion beneath exposures of Beacon sedimentary rock and ice in the area covered, as well as beneath the small BRIC exposure. The magnetic anomalies show a minimum area of 3000 km2, a much greater extent than previously inferred. Magnetic models indicate a minimum thickness of ???1-2 km for a horizontal intrusion. However, nonunique models with magnetic layers decreasing in apparent susceptibility with depth are consistent with of a 4- to 8-km-thick layered intrusion. These magnetic models indicate progressively deeper erosion of the interpreted mafic-layered body from the south to north. The erosion has removed more magnetic upper layers that mask the magnetic effects of the lower less magnetic layers. The probable minimum volume of the intrusion in the area of the survey is ???6000 km3. An alternate, but less likely, interpretation of a series of dikes can also fit the

  19. Assessing the benefits of Transboundary Protected Areas: a questionnaire survey in the Americas and the Caribbean.

    Science.gov (United States)

    McCallum, Jamie W; Vasilijević, Maja; Cuthill, Innes

    2015-02-01

    There are more than 3000 protected areas (PAs) situated on or near international boundaries, and amongst them there is an increasing trend towards the establishment of transboundary cooperation initiatives. Proponents of Transboundary PAs (TBPAs) highlight the potential for biodiversity protection through spatial, management and socio-economic benefits. However, there have been few formal studies that assess these benefits. It is possible that the relaxation of boundary controls to optimise transboundary connectivity may increase the risk of impacts from invasive species or illegal human incursion. We sought to investigate the validity of these proposed benefits and potential risks through a questionnaire survey of 113 PAs, of which 39 responded and met our inclusion criteria. 82% felt that transboundary cooperation has benefits for biodiversity and, across PAs, the self-reported level of transboundary communication was positively associated with some improved spatial, management and socio-economic benefits. However, 26% of PAs reported that they never communicated with their internationally adjoining protected area, indicating unrealised potential for greater gains.

  20. A Survey of MAC Protocols for Cognitive Radio Body Area Networks

    Science.gov (United States)

    Bhandari, Sabin; Moh, Sangman

    2015-01-01

    The advancement in electronics, wireless communications and integrated circuits has enabled the development of small low-power sensors and actuators that can be placed on, in or around the human body. A wireless body area network (WBAN) can be effectively used to deliver the sensory data to a central server, where it can be monitored, stored and analyzed. For more than a decade, cognitive radio (CR) technology has been widely adopted in wireless networks, as it utilizes the available spectra of licensed, as well as unlicensed bands. A cognitive radio body area network (CRBAN) is a CR-enabled WBAN. Unlike other wireless networks, CRBANs have specific requirements, such as being able to automatically sense their environments and to utilize unused, licensed spectra without interfering with licensed users, but existing protocols cannot fulfill them. In particular, the medium access control (MAC) layer plays a key role in cognitive radio functions, such as channel sensing, resource allocation, spectrum mobility and spectrum sharing. To address various application-specific requirements in CRBANs, several MAC protocols have been proposed in the literature. In this paper, we survey MAC protocols for CRBANs. We then compare the different MAC protocols with one another and discuss challenging open issues in the relevant research. PMID:25903551

  1. A Survey of MAC Protocols for Cognitive Radio Body Area Networks.

    Science.gov (United States)

    Bhandari, Sabin; Moh, Sangman

    2015-04-20

    The advancement in electronics, wireless communications and integrated circuits has enabled the development of small low-power sensors and actuators that can be placed on, in or around the human body. A wireless body area network (WBAN) can be effectively used to deliver the sensory data to a central server, where it can be monitored, stored and analyzed. For more than a decade, cognitive radio (CR) technology has been widely adopted in wireless networks, as it utilizes the available spectra of licensed, as well as unlicensed bands. A cognitive radio body area network (CRBAN) is a CR-enabled WBAN. Unlike other wireless networks, CRBANs have specific requirements, such as being able to automatically sense their environments and to utilize unused, licensed spectra without interfering with licensed users, but existing protocols cannot fulfill them. In particular, the medium access control (MAC) layer plays a key role in cognitive radio functions, such as channel sensing, resource allocation, spectrum mobility and spectrum sharing. To address various application-specific requirements in CRBANs, several MAC protocols have been proposed in the literature. In this paper, we survey MAC protocols for CRBANs. We then compare the different MAC protocols with one another and discuss challenging open issues in the relevant research.

  2. Turning soil survey data into digital soil maps in the Energy Region Eger Research Model Area

    Science.gov (United States)

    Pásztor, László; Dobos, Anna; Kürti, Lívia; Takács, Katalin; Laborczi, Annamária

    2015-04-01

    Agria-Innoregion Knowledge Centre of the Eszterházy Károly College has carried out targeted basic researches in the field of renewable energy sources and climate change in the framework of TÁMOP-4.2.2.A-11/1/KONV project. The project has covered certain issues, which require the specific knowledge of the soil cover; for example: (i) investigation of quantitative and qualitative characteristics of natural and landscape resources; (ii) determination of local amount and characteristics of renewable energy sources; (iii) natural/environmental risk analysis by surveying the risk factors. The Energy Region Eger Research Model Area consists of 23 villages and is located in North-Hungary, at the Western part of Bükkalja. Bükkalja is a pediment surface with erosional valleys and dense river network. The diverse morphology of this area results diversity in soil types and soil properties as well. There was large-scale (1:10,000 and 1:25,000 scale) soil mappings in this area in the 1960's and 1970's which provided soil maps, but with reduced spatial coverage and not with fully functional thematics. To achive the recent tasks (like planning suitable/optimal land-use system, estimating biomass production and development of agricultural and ecomonic systems in terms of sustainable regional development) new survey was planned and carried out by the staff of the College. To map the soils in the study area 10 to 22 soil profiles were uncovered per settlement in 2013 and 2014. Field work was carried out according to the FAO Guidelines for Soil Description and WRB soil classification system was used for naming soils. According to the general goal of soil mapping the survey data had to be spatially extended to regionalize the collected thematic local knowledge related to soil cover. Firstly three thematic maps were compiled by digital soil mapping methods: thickness of topsoil, genetic soil type and rate of surface erosion. High resolution digital elevation model, Earth

  3. Optimal design of a lagrangian observing system for hydrodynamic surveys in coastal areas

    Science.gov (United States)

    Cucco, Andrea; Quattrocchi, Giovanni; Antognarelli, Fabio; Satta, Andrea; Maicu, Francesco; Ferrarin, Christian; Umgiesser, Georg

    2014-05-01

    The optimization of ocean observing systems is a pressing need for scientific research. In particular, the improvement of ocean short-term observing networks is achievable by reducing the cost-benefit ratio of the field campaigns and by increasing the quality of measurements. Numerical modeling is a powerful tool for determining the appropriateness of a specific observing system and for optimizing the sampling design. This is particularly true when observations are carried out in coastal areas and lagoons where, the use satellites is prohibitive due to the water shallowness. For such areas, numerical models are the most efficient tool both to provide a preliminary assess of the local physical environment and to make short -term predictions above its change. In this context, a test case experiment was carried out within an enclosed shallow water areas, the Cabras Lagoon (Sardinia, Italy). The aim of the experiment was to explore the optimal design for a field survey based on the use of coastal lagrangian buoys. A three-dimensional hydrodynamic model based on the finite element method (SHYFEM3D, Umgiesser et al., 2004) was implemented to simulate the lagoon water circulation. The model domain extent to the whole Cabras lagoon and to the whole Oristano Gulf, including the surrounding coastal area. Lateral open boundary conditions were provided by the operational ocean model system WMED and only wind forcing, provided by SKIRON atmospheric model (Kallos et al., 1997), was considered as surface boundary conditions. The model was applied to provide a number of ad hoc scenarios and to explore the efficiency of the short-term hydrodynamic survey. A first field campaign was carried out to investigate the lagrangian circulation inside the lagoon under the main wind forcing condition (Mistral wind from North-West). The trajectories followed by the lagrangian buoys and the estimated lagrangian velocities were used to calibrate the model parameters and to validate the

  4. Astronomical Site Survey for Mountain Wumingshan Area in Western Sichuan Based on GIS

    Science.gov (United States)

    Wu, N.; Liu, Y.; Zhao, H. M.

    2016-11-01

    In the Western-China Astronomical Site Survey project, we utilize the Geographic Information System (GIS) for the collection of long-term data, in order to investigate and study the Wumingshan (WMS) mountain and its surrounding areas for their geography, geology, climate, meteorology, social and demographic trends. Data analysis results show that the WMS mountain is located in the eastern fold belt of the Tibet Plateau--the typical region of the Hengduan Mountains, which leads to its large elevation, gently trended ridge, and stable geological structure. The highest altitude above the sea level at the WMS is more than 5000 m, but there are population settlements nearby with the low altitude of only 2000-3000 m, which are important for realizing low-level cost logistics conditions for the future headquarter or logistic base. Earthquake landslides and other geological disasters were rarely recorded. The other facts are such as the dry and clean atmosphere, the sparse vegetation, the semi-dry-state land, the perennial prevailing southwest wind, the rain-less winter, and the relatively short rainy-season summer, the location in the heartland of the large Shangri-La, no records of dust storms and the other inclement weather, low cloud coverage, the stability of wind direction, the small wind speed, the high possibility of clear sky, the far distance away from the developed areas in Sichuan and Yunnan provinces, and Tibet Autonomous Region, the sparsely populated people, the slowly developed economy, the peaceful and stable social environment, etc. Specially, in recent years, with the development of the local tourist resources, the traffic conditions in Daocheng have been significantly improved. With high quality highway maintenance and daily air transport capacity, the transportation of land and aviation is rarely interrupted due to snowing, which often happens in high plateau regions. Therefore, the WMS area possesses the potential conditions to establish the future

  5. A Survey of Macro-invertebrate Gleaning in the Banate Bay Intertidal Area, Eastern Panay Island

    Directory of Open Access Journals (Sweden)

    Annabelle del Norte-Campos

    2005-12-01

    Full Text Available The gleaning fishery on the intertidal areas of Banate Bay, eastern Panay was surveyed monthly fromFebruary 2002 to January 2003, to derive information on species composition, catch, catch rates, andannual value. Total biomass, gleaning and turnover rates were determined from a fishery-independentsurvey conducted in June 2005. Catches of the fishery consisted of a total of 17 species, comprised ofmollusks, crustaceans and a brachiopod. The bivalves Katelysia hiantina, Scapharca inaequivalvis, andGafrarium tumidum were the top three species, together comprising 88.79 % of the total catch. The totalmean daily catch per gleaner for all species was equivalent to 73.75 g/m-2/gleaner-1. Catch rate and catchvolume for the mollusks were highest between May-July and November-December, coinciding with thesouthwest and northeast monsoons, respectively. The large riverine inputs to the area, together with themangrove-derived organic matter, periodically resuspended by the tidal fluctuations, are seen asresponsible for increasing organic matter content of the substrates and abundance of the species. Totalannual catch of the fishery is estimated to range from 20,988.7 to 43, 527.62 kg, with a median value of31,205.6 kg. This latter value divided by the estimated total biomass in the area of 2,441. 03 kg gives aturnover rate of 12.8. The total annual catch for the entire fishery is equivalent to a total value of PhP421T to 897T/yr-1. The latter correspond to an annual income of PhP 14,043.90 to 29,904.67/gleaner-1/yr-1, small amounts which may be sustainable due to the high turnover rate of the system.

  6. A socio-ecological survey in Jalantai Area, Alxa League, Inner Mongolia, China

    Directory of Open Access Journals (Sweden)

    Lorenzo Orioli

    2015-12-01

    Full Text Available This article concerns with new and traditional practises in agriculture in Alxa League in the Inner Mongolia of China. For such a purpose, the DISPAA Department of University of Florence (Italy collaborated with the University of Tuscia (Italy, which has been one of the Italian executives for the Beijing Wind Dust Control Project under the framework of the Sino-Italian Cooperation Programme on Environmental Protection. In the context of ADAM Project, the Inner Mongolia was indicated as a potential hot-spot due to the combination of climatic change, human activities and the general phenomenon of desertification, which is an ongoing process in this area. During the past centuries, arid and semi-arid general environmental characteristics of Inner Mongolia’s landscape have conditioned the main course of economic development in rural areas. Into the Alxa League, a sub-case study situated around Jarantai City in the Alxa Left Banner was selected. During 2005-06, the work analysed the agricultural activities of the local rural population to evaluate if these might be able to cope with desertification and, more in general, with climatic change impacts. In particular, field surveys were implemented among local peasants, which were old herders or new farmers immigrated in the area, following a non-structured interview approach where the length of the interview was calibrated on the characteristics of the single interviewed. The interviews showed that soil fertility and water requirement (e.g. water drawdown and high evaporation rate that cause superficial salt crust formation are yet the main constraints to social and economic development of agriculture.

  7. Detailed microearthquake survey of Long Valley, California, known geothermal resource area, July-September 1981. Final technical report, 30 September 1980-31 June 1983

    Energy Technology Data Exchange (ETDEWEB)

    Cramer, C.H.; Stierman, D.J.; Lee, T.C.

    1983-07-01

    This report presents the results of a detailed microearthquake survey of the geothermal area at Long Valley, California. High quality digital data from a dense 3-component array covering a three-month period during the summer of 1981 have been processed for locations, velocity structure, magnitudes, focal mechanisms, and source parameters. Hypocenter locations determined from this array have estimated errors of 0.5 km in epicenter and 1.0 km in depth relative to one another. Detailed hypocentral locations show two complex zones of seismicity beneath the south moat of the caldera which seems associated with the major hot spring activity within the caldera and could be part of the conduit system feeding hydrothermal waters to these hot springs. Seismic activity at Long Valley appears to be influenced by both regional tectonic stresses and local volcanotectonic activity.

  8. Survey of pesticide application on vegetables in the Littoral area of Togo.

    Science.gov (United States)

    Adjrah, Yao; Dovlo, Agbéko; Karou, Simplice D; Eklu-Gadegbeku, Kwashie; Agbonon, Amégnona; de Souza, Comlan; Gbeassor, Messanvi

    2013-01-01

    Vegetable production in Togo is seriously affected by pests attack. To reduce damage, farmers indiscriminately use pesticides. Various studies have reported high concentrations of pesticide residues more than acceptable limits in vegetables and other edible food. The aim of the presented study is to study the attitudes and practices developed by vegetable growers about pesticides applications. A standardized questionnaires which included socio-professional factors, provisions and operations concerning the use of varieties of pesticides were addressed to 150 growers in vegetable farms along the Littoral of Togo. In order to complete data concerning pesticides, seven runoff private companies and agents of the 'Direction de la Protection des Végétaux' were interviewed. Data were statistical treated using Sphinx Plus. The survey showed that vegetable growers have an acceptable educational level (36% have more than 7 years of formal education) to exploit instructions concerning pesticide use, but more than 97% do not use recommended tools. Only 21% of them received training for pesticide use. Moreover, 84% of them did not usually wear gloves, and less than 30% used oro-nasal masks. Failure to observe minimum intervals between pesticide application and sale is worrying because extremely hazardous (Carbofuran and Cadusaphos) or moderately toxic (Cypermethrin, Dimethoate, Endosulfan, Chlorpyrifos-ethyl, Fipronil) are the products currently used. The presented study indicates that pesticides application in the survey area represents a potential risk for the environment, farmers and consumers. More investigations are needed to quantify pesticides residues on the vegetables currently con,umed and moreover, to determine the potential effect of those products on human and animals health.

  9. Depth keying

    Science.gov (United States)

    Gvili, Ronen; Kaplan, Amir; Ofek, Eyal; Yahav, Giora

    2003-05-01

    We present a new solution to the known problem of video keying in a natural environment. We segment foreground objects from background objects using their relative distance from the camera, which makes it possible to do away with the use of color for keying. To do so, we developed and built a novel depth video camera, capable of producing RGB and D signals, where D stands for the distance to each pixel. The new RGBD camera enables the creation of a whole new gallery of effects and applications such as multi-layer background substitutions. This new modality makes the production of real time mixed reality video possible, as well as post-production manipulation of recorded video. We address the problem of color spill -- in which the color of the foreground object is mixed, along its boundary, with the background color. This problem prevents an accurate separation of the foreground object from its background, and it is most visible when compositing the foreground objects to a new background. Most existing techniques are limited to the use of a constant background color. We offer a novel general approach to the problem with enabling the use of the natural background, based upon the D channel generated by the camera.

  10. CRED Towed-Diver Fish Biomass Surveys at Kingman Reef, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC)...

  11. Soil Survey Geographic (SSURGO) database for Socorro County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  12. Soil Survey Geographic (SSURGO) database for Mora County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  13. Soil Survey Geographic (SSURGO) database for Santa Fe County, Area New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  14. CRED Towed-Diver Fish Biomass Surveys at Palmyra Atoll, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC)...

  15. CRED Towed-Diver Fish Biomass Surveys at Johnston Atoll, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC)...

  16. CRED Towed-Diver Fish Biomass Surveys at Howland Island, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  17. CRED Towed-Diver Fish Biomass Surveys at Johnston Atoll, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  18. Soil Survey Geographic (SSURGO) database for Tucumcari Area, Northern Quay County, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  19. CRED Towed-Diver Fish Biomass Surveys at Howland Island, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  20. Soil Survey Geographic (SSURGO) database for Cabezon Area, New Mexico (Sandoval County, New Mexico)

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  1. Soil Survey Geographic (SSURGO) database for Mescalero-Apache Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  2. CRED Towed-Diver Fish Biomass Surveys at Wake Island, Pacific Remote Island Areas in 2005

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  3. CRED REA Fish Team Stationary Point Count Surveys at Baker, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Stationary Point Counts at 4 stations at each survey site were surveyed as part of Rapid Ecological Assessments (REA) conducted at 4 sites around Baker in the...

  4. Soil Survey Geographic (SSURGO) database for San Miguel County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  5. CRED Towed-Diver Fish Biomass Surveys at Jarvis Island, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  6. Soil Survey Geographic (SSURGO) database for Dona Ana County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  7. CRED Towed-Diver Fish Biomass Surveys at Kingman Reef, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  8. Morphology of the Gulf of Mexico within GLORIA survey area (MORPHOLOGY.SHP)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Since 1982 the U.S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep parts of the Gulf of...

  9. CRED Towed-Diver Fish Biomass Surveys at Palmyra Atoll, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  10. CRED Towed-Diver Fish Biomass Surveys at Howland Island, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  11. CRED Towed-Diver Fish Biomass Surveys at Howland Island, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  12. Soil Survey Geographic (SSURGO) database for De Baca County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  13. Soil Survey Geographic (SSURGO) database for Ute Mountain Area, Colorado and New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  14. Soil Survey Geographic (SSURGO) database for McKinley County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  15. CRED Towed-Diver Fish Biomass Surveys at Jarvis Island, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  16. CRED Towed-Diver Fish Biomass Surveys at Palmyra Atoll, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  17. CRED Towed-Diver Fish Biomass Surveys at Jarvis Island, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  18. Soil Survey Geographic (SSURGO) database for Lincoln County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  19. CRED REA Fish Team Stationary Point Count Surveys at Wake, Pacific Remote Island Areas (PRIAs), 2005

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Stationary Point Counts at 4 stations at each survey site were surveyed as part of Rapid Ecological Assessments (REA) conducted at 14 sites around Wake in the...

  20. CRED Towed-Diver Fish Biomass Surveys at Baker Island, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  1. CRED Towed-Diver Fish Biomass Surveys at Baker Island, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  2. CRED Towed-Diver Fish Biomass Surveys at Kingman Reef, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  3. CRED Towed-Diver Fish Biomass Surveys at Kingman Reef, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  4. CRED REA Fish Team Stationary Point Count Surveys at Jarvis, Pacific Remote Island Areas (PRIAs), 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Stationary Point Counts at 4 stations at each survey site were surveyed as part of Rapid Ecological Assessments (REA) conducted at 9 sites around Jarvis in the...

  5. Mass-wasting deposits within the GLORIA survey area, Gulf of Mexico (MASSWASTING.SHP)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This GIS overlay is a component of the U.S. Geological Survey, Woods Hole Science Center's, Gulf of Mexico GIS database. The Gulf of Mexico GIS database is intended...

  6. CRED REA Fish Team Stationary Point Count Surveys at Howland, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Stationary Point Counts at 4 stations at each survey site were surveyed as part of Rapid Ecological Assessments (REA) conducted at 11 sites around Howland in the...

  7. CRED Towed-Diver Fish Biomass Surveys at Jarvis Island, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC)...

  8. CRED Towed-Diver Fish Biomass Surveys at Howland Island, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC)...

  9. CRED Towed-Diver Fish Biomass Surveys at Wake Island, Pacific Remote Island Areas in 2009

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  10. Soil Survey Geographic (SSURGO) database for Sierra County Area, New Mexico

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The...

  11. CRED Towed-Diver Fish Biomass Surveys at Baker Island, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  12. CRED Towed-Diver Fish Biomass Surveys at Jarvis Island, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  13. CRED Towed-Diver Fish Biomass Surveys at Wake Island, Pacific Remote Island Areas in 2007

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  14. CRED Towed-Diver Fish Biomass Surveys at Baker Island, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  15. CRED Towed-Diver Fish Biomass Surveys at Baker Island, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Towed-diver surveys (aka. Towboard surveys) are conducted by the Coral Reef Ecosystem Division (CRED) of the NOAA Pacific Islands Fisheries Science Center (PIFSC) as...

  16. Assessment of Systematic Chromatic Errors that Impact Sub-1% Photometric Precision in Large-Area Sky Surveys

    CERN Document Server

    Li, T S; Marshall, J L; Tucker, D; Kessler, R; Annis, J; Bernstein, G M; Boada, S; Burke, D L; Finley, D A; James, D J; Kent, S; Lin, H; Marriner, J; Mondrik, N; Nagasawa, D; Rykoff, E S; Scolnic, D; Walker, A R; Wester, W; Abbott, T M C; Allam, S; Benoit-Lévy, A; Bertin, E; Brooks, D; Capozzi, D; Rosell, A Carnero; Kind, M Carrasco; Carretero, J; Crocce, M; Cunha, C E; D'Andrea, C B; da Costa, L N; Desai, S; Diehl, H T; Doel, P; Flaugher, B; Fosalba, P; Frieman, J; Gaztanaga, E; Goldstein, D A; Gruen, D; Gruendl, R A; Gutierrez, G; Honscheid, K; Kuehn, K; Kuropatkin, N; Maia, M A G; Melchior28, P; Miller, C J; Miquel, R; Mohr, J J; Neilsen, E; Nichol, R C; Nord, B; Ogando, R; Plazas, A A; Romer, A K; Roodman, A; Sako, M; Sanchez, E; Scarpine, V; Schubnell, M; Sevilla-Noarbe, I; Smith, R C; Soares-Santos, M; Sobreira, F; Suchyta, E; Tarle, G; Thomas, D; Vikram, V

    2016-01-01

    Meeting the science goals for many current and future ground-based optical large-area sky surveys requires that the calibrated broadband photometry is stable in time and uniform over the sky to 1% precision or better. Past surveys have achieved photometric precision of 1-2% by calibrating the survey's stellar photometry with repeated measurements of a large number of stars observed in multiple epochs. The calibration techniques employed by these surveys only consider the relative frame-by-frame photometric zeropoint offset and the focal plane position-dependent illumination corrections, which are independent of the source color. However, variations in the wavelength dependence of the atmospheric transmission and the instrumental throughput induce source color-dependent systematic errors. These systematic errors must also be considered to achieve the most precise photometric measurements. In this paper, we examine such systematic chromatic errors using photometry from the Dark Energy Survey (DES) as an example...

  17. Ruderal plants in remaining Cerrado areas: floristic survey, origin and mycorrhization

    Science.gov (United States)

    José Neto, Maria; de Cássia Brassaloti Otsubo, Helena; Luciene Maltoni, Kátia; Rodrigues Cassiolato, Ana Maria

    2015-04-01

    The urbanization process creates new ecosystems that harbor flora which has specialized in living in anthropogenically altered environments, since the advent of agriculture and urbanization. Plant specialization in new ecosystems has been due to accelerated population growth and extensive occupied spaces on the planet surface. This study was looking at the floristic survey and origin, as well as arbuscular mycorrhization of ruderal plants, in remaining Cerrado areas in the city of Três Lagoas-MS, Brazil. It was also to expand knowledge about native and introduced vegetation in anthropogenic environments. The survey was conducted for a year. From all species ruderal plants founded, plants from 49 species were collected with the purpose of this study and report the occurrence or not of AM colonization, by classifying root colonization, of the species as: very high; high; medium; low and absent when presented a index of colonization> 80%, 79-50%, 49-20%, 19-1% and 0%, respectively. Two hundred sixty-six species, distributed into 53 botanical families were found. The flora of Três Lagoas-MS is composed of native and exotic plants (82.72% from the Americas and 17.28% from the Old World and Australia). There were 220 species native to the America's, but the largest amount (60.45%) were Brazil native growing plants. Smaller percentage of this (28.63%) was found to come from the cerrado, which indicates that the ruderal vegetation was well represented by native species. Of the 49 species chosen for verification of arbuscular mycorrhizal colonization, 27 exhibited very high colonization; two were high; two were medium; eleven were low and seven species showed no mycorrhizal colonization, leading to the conclusion that most ruderal plants showed mycorrhizal colonization. The soil fertility, for both area, were considered higher than the typical cerrado, and by the average number of AMF spores (152 per 100 g of dry soil-1) may not even be considered degraded. This urban

  18. Results of the fourth quarter tritium survey of the F- and H-Area seeplines: March--April 1993

    Energy Technology Data Exchange (ETDEWEB)

    Dixon, K.L.; Rogers, V.A.

    1993-07-01

    The Environmental Sciences Section (ESS) established a quarterly monitoring program of the Four Mile Creek seepline down gradient from the F- and H-Area seepage basins. The program surveys and tracks changes in tritium, specific conductivity, and pH for the seepline water. Measurements from the fourth quarter survey (March/April 1993) showed lower tritium and conductivity measurements and higher pH values (pH 5--6) than measurements from previous studies. The results of the first four quarterly surveys suggest that infiltration of rainfall may be diluting and flushing the contaminants from the groundwater system. More measurements are needed to confirm these trends.

  19. A molecular survey on cystic echinococcosis in Sinnar area,Blue Nile state (Sudan)

    Institute of Scientific and Technical Information of China (English)

    Kamal Ibrahim; Romig Thomas; Kern Peter; Rihab All Omer

    2011-01-01

    Background Cystic echinococcosis (CE) is a zoonosis caused by the cestodes of the Echinococcus species. Its life cycle involves dogs and other canids as definitive hosts for the intestinal tapeworm, as well as domestic and wild ungulates as intermediate hosts for the tissue-invading metacestode (larval) stage. The disease has a special impact on disadvantaged pastoralist communities and is listed now among the three top priority neglected tropical disease (NTD).Therefore, CE is a neglected disease even in high endemicity regions. This study aimed at investigation of the prevalence of CE in different animals slaughtered for food consumption in Sinnar area, Blue Nile states in Sudan.Methods A survey of CE in livestock was conducted from April 2009 to March 2011 in Sinnar area, Blue Nile state in Sudan. Location, parasitological status and fertility conditions were determined. In addition, 120 hydatid cysts (30 from camels, 62 from cattle and 28 from sheep) were examined by polymerase chain reaction (PCR) and mitochondrial gene sequencing for the genetic allocation of Echinococcus strains or species Results The prevalence of CE was 29.7% (30/101) in camels, 2.7% (62/2310) in cattle and 0.6% (26/4378) in sheep. It was shown that infection rates increased with age in camels, cattle and sheep. In camels, 67% (20/30) of the infected animals were aged between 2-5 years whereas 58% (36/62) of the infected cattle were >5 years. In sheep, the prevalence rate was distributed equally between animals ranging 2-5 years and >5 years. Even though multiple cysts were found in some animals, the average number of cysts per animal was close to 1 in all examined species. Lungs were found to be the predilection sites for the parasite in both camels and cattle, while most of the cysts found in sheep were located in the liver. About 63.4% of cysts encountered in camels were considered as large (5-7 cm), whereas those in cattle and sheep were medium (2-4 cm) and small (<2

  20. An aerial radiological survey of the Fort Calhoun Nuclear Power Plant and surrounding area, Fort Calhoun, Nebraska

    Energy Technology Data Exchange (ETDEWEB)

    1994-05-01

    An aerial radiological survey was conducted over the Fort Calhoun Nuclear Power Plant in Fort Calhoun, Nebraska, during the period June 19 through June 28, 1993. The survey was conducted at an altitude of 150 feet (46 meters) over a 25-square-mile (65-square-kilometer) area centered on the power station. The purpose of the survey was to document the terrestrial gamma radiation environment of the Fort Calhoun Nuclear Power Plant and surrounding area. The results of the aerial survey are reported as inferred gamma radiation exposure rates at 1 meter above ground level in the form of a contour map. Outside the plant boundary, exposure rates were found to vary between 6 and 12 microroentgens per hour and were attributed to naturally-occurring uranium, thorium, and potassium. The aerial data were compared to ground-based benchmark exposure rate measurements and radionuclide assays of soil samples obtained within the survey boundary. The ground-based measurements were found to be in good agreement with those inferred from the aerial measuring system. A previous survey was conducted on August 9 and 10, 1972, before the plant began operation. Exposure rates measured in both surveys were consistent with normal terrestrial background.

  1. 2D resistivity survey in complex geological structure area. Application to the volcanic area; Fukuzatsuna chishitsu kozo chiiki ni okeru hiteiko nijigen tansa. Kazangan chiiki deno tekiorei

    Energy Technology Data Exchange (ETDEWEB)

    Asakawa, S.; Ikuma, T.; Tanifuji, R. [DIA Consultants Co. Ltd., Tokyo (Japan)

    1996-05-01

    Introduced herein is an application of 2D resistivity survey to a volcanic rock area where the survey result is difficult to interpret because of its complex geological structure. In a dam site survey, main problems involve the permeability of water through faults and weathered, altered zones. At this site, a 2D resistivity survey was conducted, a 2D geological structure was deduced from the resistivity section, and the result was examined. It was found that resistivity distribution was closely related to hydrographic factors, but no obvious correlation was detected between rock classes and R, Q, and D. In conducting investigations into a section planned for a highway tunnel, it was learned that the problem was a volcanic ash layer to collapse instantly upon absorbing water, and the distribution of the ash layer, not to be disclosed by boring, was subjected to a 2D resistivity survey. The survey was conducted into the structure above where the tunnel would run, and further into the face, and studies were made about what layer was reflected by the resistivity distribution obtained by analysis. The result of the analysis agreed with the details of the layer that was disclosed afterward. 4 figs., 1 tab.

  2. Geomorphic change detection in proglacial areas using repetitive unmanned aerial vehicle (UAV) surveys

    Science.gov (United States)

    Ewertowski, Marek; Evans, David; Roberts, David; Tomczyk, Aleksandra; Ewertowski, Wojciech

    2017-04-01

    Glacial forelands exposed due to the glacier recession are one of the most dynamically transformed landscapes in Polar and mountainous areas. These areas are supposed to be intensively changed by various geomorphological processes related to the glacial retreat and meltwater activity, as well as paraglacial adjustment of topography. This study deals with landscape transformation in an annual time-scale in the foreland of Hørbyebreen and Rieperbreen (Svalbard) and Fjallsjökull and Kviárjökull (Iceland) to assess landscape changes in 2014-2016 period. The main aim of this study is to map and quantify landforms development in detailed spatial scale to provide an insight into geomorphological processes which occurred shortly after the retreat of the ice margin. Low-altitude aerial photographs were taken using small quadcopter equipped with 12 MP camera. Images were acquired at an elevation between 40 and 60 m above the ground level. The images were subsequently processed using structure-from-motion approach to produce orthomosaics ( 3 cm cell size) and digital elevation models (DEMs) with 5-10 cm cell size. Subtracting DEMs from subsequent time periods created DEMs of Differences — which enabled us to calculate the amount of material loss or deposition. Accuracy of the orthophotos and DEMs was improved using ground control points measured with dGPS. Over the 2014-2016 period repetitive UAV-based surveys revealed and quantify changes in landscape including: (1) glacier thinning; (2) ice-cored moraines degradation; (3) development of terminoglacial and supraglacial lakes; (4) debris flow activity. Short-time dynamics of different components showed very high variability over time and space illustrating relative importance of ice backwasting and downwasting as well as glacifluvial processes for studied forelands The research was founded by Polish National Science Centre (project granted by decision number DEC-2011/01/D/ST10/06494).

  3. Area specific stripping factors for AGS. A method for extracting stripping factors from survey data

    Energy Technology Data Exchange (ETDEWEB)

    Aage, H.K.; Korsbech, U. [Technical Univ. of Denmark (Denmark)

    2006-04-15

    In order to use Airborne Gamma-ray Spectrometry (AGS) for contamination mapping, for source search etc. one must to be able to eliminate the contribution to the spectra from natural radioactivity. This in general is done by a stripping technique. The parameters for performing a stripping have until recently been measured by recording gamma spectra at special calibration sites (pads). This may be cumbersome and the parameters may not be correct when used at low gamma energies for environmental spectra. During 2000-2001 DTU tested with success a new technique for Carborne Gamma-ray Spectrometry (CGS) where the spectra from the surveyed area (or from a similar area) were used for calculating the stripping parameters. It was possible to calculate usable stripping ratios for a number of low energy windows - and weak source signals not detectable by other means were discovered with the ASS technique. In this report it is shown that the ASS technique also works for AGS data, and it has been used for recent Danish AGS tests with point sources. (Check of calibration of AGS parameters.) By using the ASS technique with the Boden data (Barents Rescue) an exercise source was detected that has not been detected by any of the teams during the exercise. The ASS technique therefore seems to be better for search for radiation anomalies than any other method known presently. The experiences also tell that although the stripping can be performed correctly at any altitude there is a variation of the stripping parameters with altitude that has not yet been quite understood. However, even with the oddly variations the stripping worked as expected. It was also observed that one might calculate a single common set of usable stripping factors for all altitudes from the entire data set i.e. some average a, b and c values. When those stripping factors were used the stripping technique still worked well. (au)

  4. CARMA LARGE AREA STAR FORMATION SURVEY: OBSERVATIONAL ANALYSIS OF FILAMENTS IN THE SERPENS SOUTH MOLECULAR CLOUD

    Energy Technology Data Exchange (ETDEWEB)

    Fernández-López, M.; Looney, L.; Lee, K.; Segura-Cox, D. [Department of Astronomy, University of Illinois at Urbana—Champaign, 1002 West Green Street, Urbana, IL 61801 (United States); Arce, H. G.; Plunkett, A. [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States); Mundy, L. G.; Storm, S.; Teuben, P. J.; Pound, M. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Isella, A.; Kauffmann, J. [Astronomy Department, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Tobin, J. J. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Rosolowsky, E. [Departments of Physics and Statistics, University of British Columbia, Okanagan Campus, 3333 University Way, Kelowna, BC V1V 1V7 (Canada); Kwon, W. [SRON Netherlands Institute for Space Research, Landleven 12, 9747-AD Groningen (Netherlands); Ostriker, E. [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States); Tassis, K. [Department of Physics and Institute of Theoretical and Computational Physics, University of Crete, P.O. Box 2208, GR-710 03 Heraklion, Crete (Greece); Shirley, Y. L., E-mail: manferna@gmail.com [Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721 (United States)

    2014-08-01

    We present the N{sub 2}H{sup +} (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin{sup 2} and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0.16 km s{sup –1}, and they can be used to constrain the origin and evolution of molecular cloud filaments. The spatial distribution of the N{sub 2}H{sup +} emission is characterized by long filaments that resemble those observed in the dust continuum emission by Herschel. However, the gas filaments are typically narrower such that, in some cases, two or three quasi-parallel N{sub 2}H{sup +} filaments comprise a single observed dust continuum filament. The difference between the dust and gas filament widths casts doubt on Herschel ability to resolve the Serpens South filaments. Some molecular filaments show velocity gradients along their major axis, and two are characterized by a steep velocity gradient in the direction perpendicular to the filament axis. The observed velocity gradient along one of these filaments was previously postulated as evidence for mass infall toward the central cluster, but these kind of gradients can be interpreted as projection of large-scale turbulence.

  5. CARMA Large Area Star Formation Survey: Observational Analysis of Filaments in the Serpens South Molecular Cloud

    CERN Document Server

    Fernández-López, M; Looney, L; Mundy, L G; Storm, S; Teuben, P J; Lee, K; Segura-Cox, D; Isella, A; Tobin, J J; Rosolowsky, E; Plunkett, A; Kwon, W; Kauffmann, J; Ostriker, E; Tassis, K; Shirley, Y L; Pound, M

    2014-01-01

    We present the N2H+(J=1-0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey (CLASSy). The observations cover 250 square arcminutes and fully sample structures from 3000 AU to 3 pc with a velocity resolution of 0.16 km/s, and they can be used to constrain the origin and evolution of molecular cloud filaments. The spatial distribution of the N2H+ emission is characterized by long filaments that resemble those observed in the dust continuum emission by Herschel. However, the gas filaments are typically narrower such that, in some cases, two or three quasi-parallel N2H+ filaments comprise a single observed dust continuum filament. The difference between the dust and gas filament widths casts doubt on Herschel ability to resolve the Serpens South filaments. Some molecular filaments show velocity gradients along their major axis, and two are characterized by a steep velocity gradient in the direction perpendicular to the filament axis. The observed velocity gra...

  6. CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release

    CERN Document Server

    García-Benito, R; Sánchez, S F; Husemann, B; de Amorim, A L; Castillo-Morales, A; Fernandes, R Cid; Ellis, S C; Falcón-Barroso, J; Galbany, L; de Paz, A Gil; Delgado, R M González; Lacerda, E A D; López-Fernandez, R; de Lorenzo-Cáceres, A; Lyubenova, M; Marino, R A; Mast, D; Mendoza, M A; Pérez, E; Asari, N Vale; Aguerri, J A L; Ascasibar, Y; Bekeraitė, S; Bland-Hawthorn, J; Barrera-Ballesteros, J K; Cano-Díaz, M; Catalán-Torrecilla, C; Cortijo, C; Delgado-Inglada, G; Demleitner, M; Dettmar, R -J; Díaz, A I; Florido, E; Gallazzi, A; García-Lorenzo, B; Gomes, J M; Holmes, L; Iglesias-Páramo, J; Jahnke, K; Kalinova, V; Kehrig, C; Kennicutt, R C; López-Sánchez, Á R; Márquez, I; Masegosa, J; Meidt, S E; Mendez-Abreu, J; Mollá, M; Monreal-Ibero, A; Morisset, C; del Olmo, A; Papaderos, P; Pérez, I; Quirrenbach, A; Rosales-Ortega, F F; Roth, M M; Ruiz-Lara, T; Sánchez-Blázquez, P; Sánchez-Menguiano, L; Singh, R; Spekkens, K; Stanishev, V; Torres-Papaqui, J P; van de Ven, G; Vilchez, J M; Walcher, C J; Wild, V; Wisotzki, L; Ziegler, B; Aceituno, J

    2014-01-01

    This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto observatory. Two different spectral setups are available for each galaxy, (i) a low-resolution V500 setup covering the wavelength range 3745-7500 \\AA\\ with a spectral resolution of 6.0 \\AA\\ (FWHM), and (ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 \\AA\\ with a spectral resolution of 2.3 \\AA\\ (FWHM). The sample covers a redshift range between 0.005 and 0.03, with a wide range of properties in the Color-Magnitude diagram, stellar mass, ionization conditions, and morphological types. All released cubes were reduced with the latest pipeline, including improved spectrophotometric calibration, spatial registration and spatial resolution. The spectr...

  7. The ALHAMBRA Project: A large area multi medium-band optical and NIR photometric survey

    CERN Document Server

    Moles, M; López-Aguerri, J A; Alfaro, E J; Broadhurst, T; Cabrera-Caño, J; Castander, F J; Cepa, J; Cerviño, M; Cristóbal-Hornillos, D; Fernández-Soto, A; Delgado, R M González; Infante, L; Márquez, I; Martínez, V J; Masegosa, J; del Olmo, A; Perea, J; Prada, F; Quintana, J M; Sánchez, S F

    2008-01-01

    (ABRIDGED) We describe the first results of the ALHAMBRA survey which provides cosmic tomography of the evolution of the contents of the Universe over most of Cosmic history. Our approach employs 20 contiguous, equal-width, medium-band filters covering from 3500 to 9700 A, plus the JHKs bands, to observe an area of 4 sqdeg on the sky. The optical photometric system has been designed to maximize the number of objects with accurate classification by SED and redshift, and to be sensitive to relatively faint emission lines. The observations are being carried out with the Calar Alto 3.5m telescope using the cameras LAICA and O-2000. The first data confirm that we are reaching the expected magnitude limits of AB<~25 mag in the optical filters from the blue to 8300 A, and from AB=24.7 to 23.4 for the redder ones. The limit in the NIR is (Vega) K_s~20, H~21, J~22. We expect to obtain accurate redshift values, Delta z/(1+z) <~ 0.03 for about 5x10^5 galaxies with I<~25 (60% complete), and z_med=0.74. This accu...

  8. Helicopter-borne geophysical survey over the areas struck by the tsunami of March 11, 2011, in northeast Japan

    Science.gov (United States)

    Okuma, S.; Ueda, T.; Mitsuhata, Y.; Uchida, T.

    2012-12-01

    The Geological Survey of Japan, AIST conducted a helicopter-borne EM and magnetic survey over tsunami invaded areas in northeast Japan 15 months after the 2011 off the Pacific coast of Tohoku Earthquake. The purpose of the survey is to map the electrical resistivity of the ground intruded by seawater during the tsunami on March 11, 2011 for its reutilization as farming lands and water assessment of the area. The survey was flown in June 2012 at an altitude of 60m above ground with a speed of 50km/h along survey and traverse lines spaced 100m and 1,000m apart, respectively. The airborne EM system (Fuguro Airborne Surveys' RESOLVE system) was installed in a bird and towed 30m below the helicopter. This is a frequency-domain system operated at five frequencies (340, 1,500, 6,900, 31,000, 140,000 Hz) in a horizontal coplanar configuration and at a frequency (3,300 Hz) in a coaxial configuration. The survey area is located at the border of Miyagi and Fukushima Prefectures along the Pacific coast in the southern part of the Sendai Plain and is divided into two sub-areas: Watari-Yamamoto-Shinchi area (area A) and Matsukawa-ura Bay area (area B). The area A is known for its production of high-quality strawberries on beach ridges and much fresh groundwater has been used for irrigation of strawberries and warming of strawberry greenhouses by water curtain. However, the salinity of groundwater from shallow irrigation wells in this area increased dramatically after the tsunami (Mori et al., 2012). Since it still remains at high level, there is an urgent need to find new water resources. Whereas, the area B is characterized by a beautiful lagoon called the Matsukawa-ura which is preserved as one of prefectural parks of Fukushima Prefecture. Rice fields occupy the areas west of the Matsukawa-ura and most of them were covered by seawater during the attack of the tsunami. Desalinization of the rice fields is being conducted intensively to resume rice farming in these fields. The

  9. CALIFA, the Calar Alto Legacy Integral Field Area survey. IV. Third public data release

    Science.gov (United States)

    Sánchez, S. F.; García-Benito, R.; Zibetti, S.; Walcher, C. J.; Husemann, B.; Mendoza, M. A.; Galbany, L.; Falcón-Barroso, J.; Mast, D.; Aceituno, J.; Aguerri, J. A. L.; Alves, J.; Amorim, A. L.; Ascasibar, Y.; Barrado-Navascues, D.; Barrera-Ballesteros, J.; Bekeraitè, S.; Bland-Hawthorn, J.; Cano Díaz, M.; Cid Fernandes, R.; Cavichia, O.; Cortijo, C.; Dannerbauer, H.; Demleitner, M.; Díaz, A.; Dettmar, R. J.; de Lorenzo-Cáceres, A.; del Olmo, A.; Galazzi, A.; García-Lorenzo, B.; Gil de Paz, A.; González Delgado, R.; Holmes, L.; Iglésias-Páramo, J.; Kehrig, C.; Kelz, A.; Kennicutt, R. C.; Kleemann, B.; Lacerda, E. A. D.; López Fernández, R.; López Sánchez, A. R.; Lyubenova, M.; Marino, R.; Márquez, I.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Ortega Minakata, R.; Torres-Papaqui, J. P.; Pérez, E.; Rosales-Ortega, F. F.; Roth, M. M.; Sánchez-Blázquez, P.; Schilling, U.; Spekkens, K.; Vale Asari, N.; van den Bosch, R. C. E.; van de Ven, G.; Vilchez, J. M.; Wild, V.; Wisotzki, L.; Yıldırım, A.; Ziegler, B.

    2016-10-01

    This paper describes the third public data release (DR3) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. Science-grade quality data for 667 galaxies are made public, including the 200 galaxies of the second public data release (DR2). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto Observatory. Three different spectral setups are available: i) a low-resolution V500 setup covering the wavelength range 3745-7500 Å (4240-7140 Å unvignetted) with a spectral resolution of 6.0 Å (FWHM) for 646 galaxies, ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 Å (3650-4620 Å unvignetted) with a spectral resolution of 2.3 Å (FWHM) for 484 galaxies, and iii) the combination of the cubes from both setups (called COMBO) with a spectral resolution of 6.0 Å and a wavelength range between 3700-7500 Å (3700-7140 Å unvignetted) for 446 galaxies. The Main Sample, selected and observed according to the CALIFA survey strategy covers a redshift range between 0.005 and 0.03, spans the color-magnitude diagram and probes a wide range of stellar masses, ionization conditions, and morphological types. The Extension Sample covers several types of galaxies that are rare in the overall galaxy population and are therefore not numerous or absent in the CALIFA Main Sample. All the cubes in the data release were processed using the latest pipeline, which includes improved versions of the calibration frames and an even further improved image reconstruction quality. In total, the third data release contains 1576 datacubes, including ~1.5 million independent spectra. Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck-Institut für Astronomie (MPIA) and the Instituto de Astrofísica de Andalucía (CSIC).The spectra are available at http://califa.caha.es/DR3

  10. Sediment Yields Revealed and Fluid Modelling by Twice LiDAR Surveys in Active Tectonics Area

    Science.gov (United States)

    Hsieh, Y.; Chan, Y.; Hu, J.; Lin, C.

    2010-12-01

    LiDAR technique allows rapid acquisition of high resolution and high precision topographic data. The technique has found considerable use in the earth sciences, for example for fluvial morphology and flood modelling. These developments have offered new opportunities for investigating spatial and temporal patterns of morphological change in gravel-bed river and have contributed to develop in two points: (1)morphometric estimates of sediment transport and sediment yields ;(2)boundary conditions for numerical models, including computational fluid dynamics and modelling. This topographic research funded by the Taiwan Central Geological Survey, surveyed the terrain of the Lanyang River before and after the typhoon season using Airborne LiDAR technique, and computed the terrain variations. The Lanyang River is one of main rivers in Taiwan and often suffers the influence of typhoon during summer. Most of sediments generated from slump and soil erosion into river were transported from the upstream watershed and resulted in the riverbed changes during the typhoon season. In 2008, there are four significant typhoon events influencing this area, including the Kalmaegi, Fung-wong, Sinlaku, and Jangmi typhoons. At present, sediment yield calculation often used empirical or theoretical formula as well as data collected at hydrological stations, and rarely had the actual measured value through high-resolution topography. The variations of the terrain on the riverbed may be regarded as the sediment yield of the bed load transported during the typhoon season. This research used high-resolution terrain models to compute sediment yield of the bed load, and further discussed volumes of sediment yield in watershed during the typhoon season. In the Lanyang River we discovered that the upstream and midstream channel still had the characteristics of erosion and transportation during the typhoon season. The results imply significant sediment yield and transportation from the upstream

  11. S-wave reflection and surface wave surveys in liquefaction affected areas: a case study of the Hinode area, Itako, Ibaraki, Japan

    Science.gov (United States)

    Yokota, Toshiyuki; Jinguuji, Motoharu; Yamanaka, Yoshiaki; Murata, Kazunori

    2017-10-01

    Property damage results from liquefaction that occurs easily in soft sandy layers. Moreover, liquefaction damage tends to be more serious at locations where earthquake ground motions are locally amplified. It is commonly understood that ground stiffness is correlated with S-wave velocity (Vs); in addition, the structure of the local subsurface is important for predicting local earthquake ground motion. Surface wave and S-wave reflection surveys are efficient, non-destructive techniques used to obtain two-dimensional S-wave velocity distributions and to map subsurface structures. In this study, we performed surface wave and S-wave reflection surveys to investigate the Hinode area of Itako, Ibaraki, Japan. This area suffered serious liquefaction damage during the Great Eastern Japan Earthquake of 2011. Using subsurface boundaries imaged by the reflection surveys and the Vs structures obtained by surface wave analyses, it is possible to extrapolate geological and hydraulic information obtained by boring and cone penetration tests (CPTs). The combined information was used to delineate the layer in which liquefaction occurred, identified as an artificial layer of sandy dredged material, formed after 1970. The results of this study confirmed the effectiveness and applicability of geophysical surveys to the evaluation of the liquefaction potential. These methods enable us to predict the spatial distribution of liquefiable soils for future large earthquakes.

  12. Use of models in large-area forest surveys: comparing model-assisted, model-based and hybrid estimation

    Directory of Open Access Journals (Sweden)

    Göran Ståhl

    2016-02-01

    Full Text Available This paper focuses on the use of models for increasing the precision of estimators in large-area forest surveys. It is motivated by the increasing availability of remotely sensed data, which facilitates the development of models predicting the variables of interest in forest surveys. We present, review and compare three different estimation frameworks where models play a core role: model-assisted, model-based, and hybrid estimation. The first two are well known, whereas the third has only recently been introduced in forest surveys. Hybrid inference mixes designbased and model-based inference, since it relies on a probability sample of auxiliary data and a model predicting the target variable from the auxiliary data..We review studies on large-area forest surveys based on model-assisted, modelbased, and hybrid estimation, and discuss advantages and disadvantages of the approaches. We conclude that no general recommendations can be made about whether model-assisted, model-based, or hybrid estimation should be preferred. The choice depends on the objective of the survey and the possibilities to acquire appropriate field and remotely sensed data. We also conclude that modelling approaches can only be successfully applied for estimating target variables such as growing stock volume or biomass, which are adequately related to commonly available remotely sensed data, and thus purely field based surveys remain important for several important forest parameters. Keywords: Design-based inference, Model-assisted estimation, Model-based inference, Hybrid inference, National forest inventory, Remote sensing, Sampling

  13. An Archaeological Survey of the Shoreline at Public Use Areas Pomme de Terre Lake, Hickory and Polk Counties, Missouri

    Science.gov (United States)

    1988-01-01

    O 1C A II Copy Pomme de Terre Lake US Army Corps Missouri of Engineers Kansas City District Fischer-Stein Associates, Inc. Carbondale, Illinois An...Archaeological Survey of Ou The Shoreline at Public Use Areas Pomme de Terre Lake, Hickory and Polk Counties, Missouri I’I DISRIBU11ON STA7EMIENIT DT!C...of shore- line at nine Corps of Engineer Public Use Areas at Pomme de Terre Lake, Hickory and Polk counties, Missouri, is presented. Previous

  14. Neutral Hydrogen Optical Depth near Star-forming Galaxies at z ≈ 2.4 in the Keck Baryonic Structure Survey

    Science.gov (United States)

    Rakic, Olivera; Schaye, Joop; Steidel, Charles C.; Rudie, Gwen C.

    2012-06-01

    We study the interface between galaxies and the intergalactic medium by measuring the absorption by neutral hydrogen in the vicinity of star-forming galaxies at z ≈ 2.4. Our sample consists of 679 rest-frame UV-selected galaxies with spectroscopic redshifts that have impact parameters background QSOs and that fall within the redshift range of its Lyα forest. We present the first two-dimensional maps of the absorption around galaxies, plotting the median Lyα pixel optical depth as a function of transverse and line-of-sight separation from galaxies. The Lyα optical depths are measured using an automatic algorithm that takes advantage of all available Lyman series lines. The median optical depth, and hence the median density of atomic hydrogen, drops by more than an order of magnitude around 100 kpc, which is similar to the virial radius of the halos thought to host the galaxies. The median remains enhanced, at the >3σ level, out to at least 2.8 Mpc (i.e., >9 comoving Mpc), but the scatter at a given distance is large compared with the median excess optical depth, suggesting that the gas is clumpy. Within 100 (200) kpc, and over ±165 km s-1, the covering fraction of gas with Lyα optical depth greater than unity is 100+0 - 32% (66% ± 16%). Absorbers with τLyα > 0.1 are typically closer to galaxies than random. The mean galaxy overdensity around absorbers increases with the optical depth and also as the length scale over which the galaxy overdensity is evaluated is decreased. Absorbers with τLyα ~ 1 reside in regions where the galaxy number density is close to the cosmic mean on scales >=0.25 Mpc. We clearly detect two types of redshift space anisotropies. On scales 3σ significance), an effect that we attribute to large-scale infall (i.e., the Kaiser effect). Based on data obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and NASA, and was made

  15. An aerial radiological survey of Project Gasbuggy and surrounding area, Rio Arriba County, New Mexico. Date of survey: October 27, 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-01

    An aerial radiological survey was conducted over the Project Gasbuggy site, 55 miles (89 kilometers) east of Farmington, New Mexico, on October 27, 1994. Parallel lines were flown at intervals of 300 feet (91 meters) over a 16-square-mile (41-square-kilometer) area at a 150-foot (46-meter) altitude centered on the Gasbuggy site. The gamma energy spectra obtained were reduced to an exposure rate contour map overlaid on a high altitude aerial photograph of the area. The terrestrial exposure rate varied from 14 to 20 {micro}R/h at 1 meter above ground level. No anomalous or man-made isotopes were found.

  16. CARMA Large Area Star Formation Survey: project overview with analysis of dense gas structure and kinematics in Barnard 1

    Energy Technology Data Exchange (ETDEWEB)

    Storm, Shaye; Mundy, Lee G.; Lee, Katherine I.; Teuben, Peter; Pound, Marc W.; Salter, Demerese M.; Chen, Che-Yu; Gong, Hao [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Fernández-López, Manuel; Looney, Leslie W.; Segura-Cox, Dominique M. [Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 West Green Street, Urbana, IL 61801 (United States); Rosolowsky, Erik [Departments of Physics and Statistics, University of British Columbia, Okanagan Campus, 3333 University Way, Kelowna BC V1V 1V7 (Canada); Arce, Héctor G.; Plunkett, Adele L. [Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520-8101 (United States); Ostriker, Eve C. [Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544 (United States); Volgenau, Nikolaus H. [Owens Valley Radio Observatory, MC 105-24 OVRO, Pasadena, CA 91125 (United States); Shirley, Yancy L. [Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Tobin, John J. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Kwon, Woojin [SRON Netherlands Institute for Space Research, Landleven 12, 9747 AD Groningen (Netherlands); Isella, Andrea, E-mail: sstorm@astro.umd.edu [Astronomy Department, California Institute of Technology, 1200 East California Blvd., Pasadena, CA 91125 (United States); and others

    2014-10-20

    We present details of the CARMA Large Area Star Formation Survey (CLASSy), while focusing on observations of Barnard 1. CLASSy is a CARMA Key Project that spectrally imaged N{sub 2}H{sup +}, HCO{sup +}, and HCN (J = 1 → 0 transitions) across over 800 square arcminutes of the Perseus and Serpens Molecular Clouds. The observations have angular resolution near 7'' and spectral resolution near 0.16 km s{sup –1}. We imaged ∼150 square arcminutes of Barnard 1, focusing on the main core, and the B1 Ridge and clumps to its southwest. N{sub 2}H{sup +} shows the strongest emission, with morphology similar to cool dust in the region, while HCO{sup +} and HCN trace several molecular outflows from a collection of protostars in the main core. We identify a range of kinematic complexity, with N{sub 2}H{sup +} velocity dispersions ranging from ∼0.05 to 0.50 km s{sup –1} across the field. Simultaneous continuum mapping at 3 mm reveals six compact object detections, three of which are new detections. A new, non-binary dendrogram algorithm is used to analyze dense gas structures in the N{sub 2}H{sup +} position-position-velocity (PPV) cube. The projected sizes of dendrogram-identified structures range from about 0.01 to 0.34 pc. Size-linewidth relations using those structures show that non-thermal line-of-sight velocity dispersion varies weakly with projected size, while rms variation in the centroid velocity rises steeply with projected size. Comparing these relations, we propose that all dense gas structures in Barnard 1 have comparable depths into the sky, around 0.1-0.2 pc; this suggests that overdense, parsec-scale regions within molecular clouds are better described as flattened structures rather than spherical collections of gas. Science-ready PPV cubes for Barnard 1 molecular emission are available for download.

  17. Area West of the 700 fathom Depth Contour for Pacific Fishery Management Council's June 2005 Preferred Alternative, Groundfish EFH Final EIS

    Data.gov (United States)

    Pacific States Marine Fisheries Commission — These data depict area within the West Coast Exclusive Economic Zone (EEZ) that is west of the 700 fathom isobath. This area was designated by the Pacific Fishery...

  18. A method of transferring G.T.S. benchmark value to survey area using electronic total station

    Digital Repository Service at National Institute of Oceanography (India)

    Ganesan, P.

    is impossible. In some places, GTS benchmarks are available within a kilometer distance and can be easily transferred to the survey area by fly leveling using an automatic Level instrument and a graduated leveling staff. But in most of the cases, GTS benchmarks...

  19. The European Large Area ISO Survey - IX. The 90-mu m luminosity function from the Final Analysis sample

    NARCIS (Netherlands)

    Serjeant, S; Carraminana, A; Gonzales-Solares, E; Heraudeau, P; Mujica, R; Perez-Fournon, [No Value; Sedgwick, N; Rowan-Robinson, M; Franceschini, A; Babbedge, T; del Burgo, C; Ciliegi, P; Efstathiou, A; La Franca, F; Gruppioni, C; Hughes, D; Lari, C; Oliver, S; Pozzi, F; Stickel, M; Vaccari, M

    2004-01-01

    We present the 90-mum luminosity function of the Final Analysis of the European Large Area ISO Survey (ELAIS), extending the sample size of our previous analysis (Paper IV) by about a factor of 4. Our sample extends to z = 1.1, similar to50 times the comoving volume of Paper IV, and 10(7.7)

  20. Data Summary Report for the 1997 Semiannual Tritium Survey for Fourmile Branch and the F- and H-Area Seeplines

    Energy Technology Data Exchange (ETDEWEB)

    Koch, J.W. II

    1998-01-05

    This report presents a summary of the definitive data validation and verification for the 1997 RFI/RI semiannual tritium survey for Fourmile Branch and the F- and H-Area Seeplines. The RFI/RI was performed under the direction of WSRC ESS/Ecology. This report was prepared under the direction EPD/EMS.

  1. Geophysical and geologic surveys of the areas struck by the August 26th 2016 Central Italy earthquake: The study case of Pretare and Piedilama

    Science.gov (United States)

    Imposa, S.; Panzera, F.; Grassi, S.; Lombardo, G.; Catalano, S.; Romagnoli, G.; Tortorici, G.

    2017-10-01

    A MW6.0 earthquake struck the Central Italian Apennines on August 24th 2016, followed by an important seismic sequence characterized by hundreds of aftershocks. The earthquake caused fatalities and partially destroyed several towns surrounding the epicentral area. In this context the Italian Centre for Seismic Microzonation and its applications was involved for the seismic characterization of the struck area. Using ambient vibrations spectral ratios at seventy-five sites and shear wave velocity profiles obtained through surface waves dispersion properties we assessed seismic site response properties in the Pretare and Piedilama villages located in the territory of Arquata del Tronto. The survey performed inside the valley in which the two villages are located set into evidence that the spectral ratios often show a predominant frequency ranging between 3.0 and 5.0 Hz or several peaks that can be related to some alternating layers with different velocities. Conversely, along the valley flanks, where the geological substratum outcrop, spectral ratios tend towards low amplitude values. The soft sediments inside the valley are characterized by shear wave velocity lower than 350 m/s, whereas the geological substratum has shear wave velocity ranging between 600 and 1200 m/s. The integrated interpretation of both geophysical and geological data, made possible to infer subsoil models of the investigated areas identifying the depth of the seismic bedrock and characterizing the buried morphology.

  2. The Shoreline Management Tool - an ArcMap tool for analyzing water depth, inundated area, volume, and selected habitats, with an example for the lower Wood River Valley, Oregon

    Science.gov (United States)

    Snyder, Daniel T.; Haluska, Tana L.; Respini-Irwin, Darius

    2013-01-01

    The Shoreline Management Tool is a geographic information system (GIS) based program developed to assist water- and land-resource managers in assessing the benefits and effects of changes in surface-water stage on water depth, inundated area, and water volume. Additionally, the Shoreline Management Tool can be used to identify aquatic or terrestrial habitat areas where conditions may be suitable for specific plants or animals as defined by user-specified criteria including water depth, land-surface slope, and land-surface aspect. The tool can also be used to delineate areas for use in determining a variety of hydrologic budget components such as surface-water storage, precipitation, runoff, or evapotranspiration. The Shoreline Management Tool consists of two parts, a graphical user interface for use with Esri™ ArcMap™ GIS software to interact with the user to define scenarios and map results, and a spreadsheet in Microsoft® Excel® developed to display tables and graphs of the results. The graphical user interface allows the user to define a scenario consisting of an inundation level (stage), land areas (parcels), and habitats (areas meeting user-specified conditions) based on water depth, slope, and aspect criteria. The tool uses data consisting of land-surface elevation, tables of stage/volume and stage/area, and delineated parcel boundaries to produce maps (data layers) of inundated areas and areas that meet the habitat criteria. The tool can be run in a Single-Time Scenario mode or in a Time-Series Scenario mode, which uses an input file of dates and associated stages. The spreadsheet part of the tool uses a macro to process the results from the graphical user interface to create tables and graphs of inundated water volume, inundated area, dry area, and mean water depth for each land parcel based on the user-specified stage. The macro also creates tables and graphs of the area, perimeter, and number of polygons comprising the user-specified habitat areas

  3. The Shoreline Management Tool, an ArcMap Tool for Analyzing Water Depth, Inundated Area, Volume, and Selected Habitats, with an Example for the Lower Wood River Valley, Oregon

    Science.gov (United States)

    Snyder, D. T.; Haluska, T. L.; Respini-Irwin, D.

    2012-12-01

    The Shoreline Management Tool is a GIS-based program developed to assist water- and land-resource managers in assessing the benefits and impacts of changes in surface-water stage on water depth, inundated area, and water volume. In addition, the tool can be used to identify aquatic or terrestrial habitat areas where conditions may be suitable for specific plants or animals as defined by user-specified criteria, including water depth, land-surface slope, and land-surface aspect or to delineate areas for use in determining a variety of hydrologic budget components such as surface-water storage, precipitation, runoff, or evapotranspiration. The Shoreline Management Tool consists of two parts, a graphical user interface for use with ArcMap GIS software to interact with the user to define scenarios and map results, and a spreadsheet in Microsoft Excel® developed to display tables and graphs of the results. The graphical user interface allows the user to define a scenario consisting of an inundation level (stage), land areas (parcels), and habitats (areas meeting user-specified conditions) based on water depth, slope, and aspect criteria. The tool uses data consisting of land-surface elevation, tables of stage/volume and stage/area, and delineated parcel boundaries to produce maps (data layers) of inundated areas and areas that meet the habitat criteria. The tool can be run in a Single-Time Scenario mode or in a Time-Series Scenario mode which uses an input file of dates and associated stages. The spreadsheet portion of the tool uses a macro to process the results from the graphical user interface to create tables and graphs of inundated water volume, inundated area, dry area, and mean water depth for each land parcel based on the user-specified stage. The macro also creates tables and graphs of the area, perimeter, and number of polygons comprising the user-specified habitat areas within each parcel. The Shoreline Management Tool is designed to be highly transferable

  4. CALIFA, the Calar Alto Legacy Integral Field Area survey. III. Second public data release

    Science.gov (United States)

    García-Benito, R.; Zibetti, S.; Sánchez, S. F.; Husemann, B.; de Amorim, A. L.; Castillo-Morales, A.; Cid Fernandes, R.; Ellis, S. C.; Falcón-Barroso, J.; Galbany, L.; Gil de Paz, A.; González Delgado, R. M.; Lacerda, E. A. D.; López-Fernandez, R.; de Lorenzo-Cáceres, A.; Lyubenova, M.; Marino, R. A.; Mast, D.; Mendoza, M. A.; Pérez, E.; Vale Asari, N.; Aguerri, J. A. L.; Ascasibar, Y.; Bekerait*error*ė, S.; Bland-Hawthorn, J.; Barrera-Ballesteros, J. K.; Bomans, D. J.; Cano-Díaz, M.; Catalán-Torrecilla, C.; Cortijo, C.; Delgado-Inglada, G.; Demleitner, M.; Dettmar, R.-J.; Díaz, A. I.; Florido, E.; Gallazzi, A.; García-Lorenzo, B.; Gomes, J. M.; Holmes, L.; Iglesias-Páramo, J.; Jahnke, K.; Kalinova, V.; Kehrig, C.; Kennicutt, R. C.; López-Sánchez, Á. R.; Márquez, I.; Masegosa, J.; Meidt, S. E.; Mendez-Abreu, J.; Mollá, M.; Monreal-Ibero, A.; Morisset, C.; del Olmo, A.; Papaderos, P.; Pérez, I.; Quirrenbach, A.; Rosales-Ortega, F. F.; Roth, M. M.; Ruiz-Lara, T.; Sánchez-Blázquez, P.; Sánchez-Menguiano, L.; Singh, R.; Spekkens, K.; Stanishev, V.; Torres-Papaqui, J. P.; van de Ven, G.; Vilchez, J. M.; Walcher, C. J.; Wild, V.; Wisotzki, L.; Ziegler, B.; Alves, J.; Barrado, D.; Quintana, J. M.; Aceituno, J.

    2015-04-01

    This paper describes the Second Public Data Release (DR2) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. The data for 200 objects are made public, including the 100 galaxies of the First Public Data Release (DR1). Data were obtained with the integral-field spectrograph PMAS/PPak mounted on the 3.5 m telescope at the Calar Alto observatory. Two different spectral setups are available for each galaxy, (i) a low-resolution V500 setup covering the wavelength range 3745-7500 Å with a spectral resolution of 6.0 Å (FWHM); and (ii) a medium-resolution V1200 setup covering the wavelength range 3650-4840 Å with a spectral resolution of 2.3 Å (FWHM). The sample covers a redshift range between 0.005 and 0.03, with a wide range of properties in the color-magnitude diagram, stellar mass, ionization conditions, and morphological types. All the cubes in the data release were reduced with the latest pipeline, which includes improvedspectrophotometric calibration, spatial registration, and spatial resolution. The spectrophotometric calibration is better than 6% and the median spatial resolution is 2.̋4. In total, the second data release contains over 1.5 million spectra. Based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck-Institut für Astronomie (MPIA) and the Instituto de Astrofísica de Andalucía (CSIC).The second data release is available at http://califa.caha.es/DR2

  5. Measurements of Greenhouse Gases around the Sacramento Area: The Airborne Greenhouse Emissions Survey (AGES) Campaign

    Science.gov (United States)

    Karion, A.; Fischer, M. L.; Turnbull, J. C.; Sweeney, C.; Faloona, I. C.; Zagorac, N.; Guilderson, T. P.; Saripalli, S.; Sherwood, T.

    2009-12-01

    The state of California is leading the United States by enacting legislation (AB-32) to reduce greenhouse gas emissions to 1990 levels by 2020. The success of reduction efforts can be gauged with accurate emissions inventories and potentially verified with atmospheric measurements of greenhouse gases (GHGs) over time. Measurements of multiple GHGs and associated trace gas species in a specific region also provide information on emissions ratios for source apportionment. We conducted the Airborne Greenhouse Emissions Survey (AGES) campaign to determine emissions signature ratios for the sources that exist in the San Francisco Bay and Sacramento Valley areas. Specifically, we attempt to determine the emissions signatures of sources that influence ongoing measurements made at a tall-tower measurement site near Walnut Grove, CA. For two weeks in February and March of 2009, a Cessna 210 was flown throughout the Sacramento region, making continuous measurements of CO2, CH4, and CO while also sampling discrete flasks for a variety of additional tracers, including SF6, N2O, and 14C in CO2 (Δ14CO2). Flight paths were planned using wind predictions for each day to maximize sampling of sources whose emissions would also be sampled contemporaneously by the instrumentation at the Walnut Grove tower (WGC), part of the ongoing California Greenhouse Gas Emissions Measurement (CALGEM) project between NOAA/ESRL’s Carbon Cycle group and Lawrence Berkeley National Laboratory (LBNL). Flights were performed in two distinct patterns: 1) flying across a plume upwind and downwind of the Sacramento urban area, and 2) flying across the Sacramento-San Joaquin Delta from Richmond to Walnut Grove, a region consisting of natural wetlands as well as several power plants and refineries. Results show a variety of well-correlated mixing ratio signals downwind of Sacramento, documenting the urban signature emission ratios, while emissions ratios in the Delta region were more variable, likely due

  6. School Library Snapshots: A Brief Survey of Illinois School Library Collections in Three Areas of Science.

    Science.gov (United States)

    Morrison, Carol; And Others

    1994-01-01

    Describes a survey of Illinois school library collections in astronomy, space, and the solar system; general biology and ecology; and human anatomy, physiology, and hygiene. The survey produced statistics on funding needs; provided a collection assessment tool; and determined whether libraries had resources for supporting state goals for science…

  7. Evaluation of low-temperature geothermal potential in Utah and Goshen Valleys and adjacent areas, Utah. Part I. Gravity survey

    Energy Technology Data Exchange (ETDEWEB)

    Davis, D.A.; Cook, K.L.

    1983-04-01

    During 1980 and 1981 a total of 569 new gravity stations were taken in Utah and Goshen Valleys and adjacent areas, Utah. The new stations were combined with 530 other gravity stations taken in previous surveys which resulted in a compilation of 1099 stations which were used in this study. The additional surveys were undertaken to assist in the evaluation of the area for the possible development of geothermal resources by providing an interpreted structural framework by delineating faults, structural trends, intrusions, thickness of valley fill, and increased density of host rock. The gravity data are presented as (1) a complete Bouguer gravity anomaly map with a 2 mgal contour interval on a scale of 1:100,000 and (2) five generally east-trending gravity profiles. A geologic interpretation of the study area was made from the gravity map and from the interpretive geologic cross sections which were modeled along the gravity profiles.

  8. Loggerhead sea turtle bycatch data in artisanal fisheries within a marine protected area: fishermen surveys versus scientific observations

    Directory of Open Access Journals (Sweden)

    Lozano, M.

    2011-06-01

    Full Text Available Loggerhead sea turtles can be incidentally captured by artisanal gears but information about the impact of this fishing is inconsistent and scarce. Recent studies have observed that the bycatch, or incidental catch rate, in fishermen surveys is irregular. The aim of this study was to compare direct data (onboard observers concerning the incidental catch of loggerhead sea turtles by the artisanal vessels versus data from fishermen surveys. The study area was the Cabo de Gata-Níjar marine protected area, situated in the western Mediterranean (southeast of the Iberian peninsula. We observed two loggerhead turtles that were incidentally caught in a total of 165 fishing operations. According to fishermen surveys, a total of nine loggerheads were incidentally caught in 861 fishing operations. The differences between the loggerhead sea turtle bycatch reported by fishermen surveys and scientific observations versus random distribution (x2 = 0.3146, P = 0.575, df = 1 were not significant. We conclude that the surveys are useful but that findings should be interpreted with caution.

  9. THE LARGE SKY AREA MULTI-OBJECT FIBER SPECTROSCOPIC TELESCOPE QUASAR SURVEY: QUASAR PROPERTIES FROM THE FIRST DATA RELEASE

    Energy Technology Data Exchange (ETDEWEB)

    Ai, Y. L.; Wu, Xue-Bing; Yang, Jinyi; Yang, Qian; Wang, Feige; Guo, Rui; Dong, Xiaoyi [Department of Astronomy, School of Physics, Peking University, Beijing 100871 (China); Zuo, Wenwen; Shen, S.-Y. [Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030 (China); Zhang, Y.-X.; Yuan, H.-L.; Song, Y.-H.; Yang, M.; Wu, H.; Shi, J.-R.; He, B.-L.; Lei, Y.-J.; Li, Y.-B. [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences 100012, Beijing (China); Wang, Jianguo; Dong, Xiaobo, E-mail: aiyl@pku.edu.cn [Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011 (China); and others

    2016-02-15

    We present preliminary results of the quasar survey in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) first data release (DR1), which includes the pilot survey and the first year of the regular survey. There are 3921 quasars reliably identified, among which 1180 are new quasars discovered in the survey. These quasars are at low to median redshifts, with a highest z of 4.83. We compile emission line measurements around the Hα, Hβ, Mg ii, and C iv regions for the new quasars. The continuum luminosities are inferred from SDSS photometric data with model fitting, as the spectra in DR1 are non-flux-calibrated. We also compile the virial black hole mass estimates, with flags indicating the selection methods, and broad absorption line quasars. The catalog and spectra for these quasars are also available. Of the 3921 quasars, 28% are independently selected with optical–infrared colors, indicating that the method is quite promising for the completeness of the quasar survey. LAMOST DR1 and the ongoing quasar survey will provide valuable data for studies of quasars.

  10. Estimating the prevalence of mental disorders in U.S. adults from the Epidemiologic Catchment Area Survey.

    Science.gov (United States)

    Bourdon, K H; Rae, D S; Locke, B Z; Narrow, W E; Regier, D A

    1992-01-01

    The National Institute of Mental Health Epidemiologic Catchment Area Survey is a comprehensive, community-based survey of mental disorders and use of services by adults, ages 18 and older. Diagnoses are based on the criteria in the "Diagnostic and Statistical Manual of Mental Disorders," third edition, and were obtained in five communities in the United States through lay-interviewer administration of the National Institute of Mental Health Diagnostic Interview Schedule. Results from the survey provide the public health field with data on the prevalence and incidence of specific mental disorders in the community, unbiased by the treatment status of the sample. The population with disorders is estimated, and the survey findings that respond to some of the most common requests for information about the epidemiology of mental disorders in the United States are highlighted briefly. Based on the survey, it is estimated that one of every five persons in the United States suffers from a mental disorder in any 6-month period, and that one of every three persons suffers a disorder in his or her lifetime. Fewer than 20 percent of those with a recent mental disorder seek help for their problem, according to the survey. High rates of comorbid substance abuse and mental disorders were found, particularly among those who had sought treatment for their disorders.

  11. CRED Towed-Diver Fish Biomass Survey at Johnston, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  12. CRED Towed-Diver Fish Biomass Survey at Kingman, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  13. CRED Towed-Diver Benthic Characterization Surveys at Howland Island, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  14. Rail survey for the Bi-county area of Pike County in Missouri and Illinois

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes rail surveys conducted on Great River and Clarence Cannon NWRs. This project was undertaken to 1) contribute to a nationwide assessment of...

  15. CRED Towed-Diver Benthic Characterization Surveys at Johnston Atoll, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  16. CRED Towed-Diver Benthic Characterization Survey at Palmyra, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  17. CRED Towed-Diver Benthic Characterization Survey at Wake, Pacific Remote Island Areas in 2014

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  18. CRED Towed-Diver Benthic Characterization Surveys at Kingman Reef, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  19. CRED Towed-Diver Fish Biomass Survey at Palmyra, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  20. Study area boundary for Hudsonia's biological surveys at the MAVA site.

    Data.gov (United States)

    National Park Service, Department of the Interior — This shapefile is part of a project called Biological Surveys at the Martin Van Buren NHS conducted by Hudsonia Ltd. It represents the approximate boundary of the...

  1. CRED Towed-Diver Benthic Characterization Surveys at Wake Island, Pacific Remote Island Areas in 2009

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  2. CRED Towed-Diver Benthic Characterization Surveys at Johnston Atoll, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  3. CRED Towed-Diver Benthic Characterization Survey at Johnston, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  4. CRED Towed-Diver Benthic Characterization Survey at Howland, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  5. CRED Towed-Diver Fish Biomass Survey at Wake, Pacific Remote Island Areas in 2014

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  6. CRED Towed-Diver Benthic Characterization Survey at Baker, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  7. 2009 U.S. Geological Survey (USGS) Lidar: Umpqua River Study Area

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. collected Light Detection and Ranging (LiDAR) data for the U.S. Geological Survey (USGS) Umpqua River study site in collaboration with the...

  8. CRED Towed-Diver Benthic Characterization Surveys at Jarvis Island, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  9. CRED Towed-Diver Benthic Characterization Surveys at Wake Island, Pacific Remote Island Areas in 2007

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  10. 2009 U.S. Geological Survey (USGS) Lidar: Umpqua River Study Area

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Watershed Sciences, Inc. collected Light Detection and Ranging (LiDAR) data for the U.S. Geological Survey (USGS) Umpqua River study site in collaboration with the...

  11. CRED Towed-Diver Benthic Characterization Surveys at Kingman Reef, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  12. CRED Towed-Diver Benthic Characterization Surveys at Jarvis Island, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  13. CRED Towed-Diver Benthic Characterization Surveys at Howland Island, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  14. CRED Towed-Diver Benthic Characterization Survey at Howland, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  15. CRED Towed-Diver Fish Biomass Survey at Jarvis, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  16. CRED Towed-Diver Benthic Characterization Surveys at Baker Island, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  17. CRED Towed-Diver Fish Biomass Survey at Palmyra, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  18. CRED Towed-Diver Benthic Characterization Surveys at Baker Island, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  19. CRED Towed-Diver Fish Biomass Survey at Wake, Pacific Remote Island Areas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  20. CRED Towed-Diver Benthic Characterization Surveys at Jarvis Island, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  1. CRED Towed-Diver Benthic Characterization Surveys at Palmyra Atoll, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  2. CRED REA Fish Team Belt Transect Survey at Wake, Pacific Remote Island Areas (PRIAs), 2005

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Belt transects along 3 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 14 sites at Wake in the Pacific...

  3. CRED Towed-Diver Benthic Characterization Survey at Jarvis, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  4. CRED Towed-Diver Benthic Characterization Surveys at Palmyra Atoll, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  5. CRED Towed-Diver Fish Biomass Survey at Howland, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  6. CRED Towed-Diver Benthic Characterization Survey at Wake, Pacific Remote Island Areas in 2011

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  7. CRED Towed-Diver Fish Biomass Survey at Howland, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  8. CRED Towed-Diver Benthic Characterization Survey at Palmyra, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  9. CRED Towed-Diver Benthic Characterization Surveys at Jarvis Island, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  10. CRED Towed-Diver Fish Biomass Survey at Baker, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  11. CRED Towed-Diver Benthic Characterization Survey at Kingman, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  12. CRED Towed-Diver Benthic Characterization Surveys at Howland Island, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  13. CRED Towed-Diver Benthic Characterization Surveys at Johnston Atoll, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  14. CRED Towed-Diver Benthic Characterization Surveys at Baker Island, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  15. CRED REA Fish Team Belt Transect Survey at Baker, Pacific Remote Island Areas, 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Belt transects along 3 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 9 sites at Baker in the Pacific...

  16. CRED Towed-Diver Fish Biomass Survey at Kingman, Pacific Remote Island Areas in 2012

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys (AKA...

  17. area117_0502 - Polygon coverage of survey bounds for HMPR-117-2005-02

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These data were collected by the SHOALS-1000T(Scanning Hydrographic Operational Airborne Lidar Survey)system which consists of an airborne laser transmitter/receiver...

  18. CRED Towed-Diver Fish Biomass Survey at Baker, Pacific Remote Island Areas in 2010

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  19. CRED Towed-Diver Benthic Characterization Surveys at Howland Island, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  20. CRED Towed-Diver Benthic Characterization Surveys at Kingman Reef, Pacific Remote Island Areas in 2006

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  1. CRED Towed-Diver Benthic Characterization Surveys at Wake Island, Pacific Remote Island Areas in 2005

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  2. CRED Towed-Diver Benthic Characterization Surveys at Palmyra Atoll, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  3. CRED Towed-Diver Benthic Characterization Surveys at Jarvis Island, Pacific Remote Island Areas in 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  4. CRED REA Fish Team Belt Transect Survey at Baker, Pacific Remote Island Areas in 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Belt transects along 3 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 4 sites at Baker in the Pacific...

  5. CRED Towed-Diver Benthic Characterization Surveys at Baker Island, Pacific Remote Island Areas in 2002

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  6. CRED Towed-Diver Benthic Characterization Surveys at Howland Island, Pacific Remote Island Areas in 2001

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To support NOAA Coral Reef Conservation Program (CRCP) long-term goals for sustainable management and conservation of coral reef ecosystems, towed-diver surveys...

  7. Stakeout surveys for check dams in gullied areas by using the FreeXSap photogrammetric method

    Science.gov (United States)

    Castillo, Carlos; Marín-Moreno, Víctor; Taguas, Encarnación V.

    2017-04-01

    Prior to any check dam construction work, it is necessary to carry out field stakeout surveys to define the layout of the dam series according to spacing criteria. While in expensive and complex settings, accurate measurement techniques might be justified (e.g. differential GPS), for small to medium-sized check dams typical of areas affected by gully erosion, simpler methodologies might be more cost-efficient. Innovative 3D photogrammetric techniques based on Structure-from-Motion (SfM) algorithms have proved to be useful across different geomorphological applications and have been successfully applied for gully assessment. In this communication, we present an efficient methodology consisting of the application of a free interface for photogrammetric reconstruction (FreeXSap) combined with simple distance measurements to obtain channel cross-sections determining the width and height of the check dam for a particular cross-section. We will illustrate its use for a hundred-meter-long gully under conventional agriculture in Córdoba (Spain). FreeXSap is an easy-to-use graphical user interface written in Matlab Code (Mathworks, 2016) for the reconstruction of 3D models from image sets taken with digital consumer-grade cameras. The SfM algorithms are based on MicMac scripts (Pierrot-Deseilligny and Cléry, 2011) along with routines specifically developed for the orientation, determination and geometrical analysis of cross-sections. It only requires the collection of a few pictures of a channel cross-section (normally below 5) by the camera operator to build an accurate 3D model, while a second operator holds a pole in vertical position (with the help of a bubble level attached to the pole) in order to provide orientation and scale for further processing. The spacing between check dams was determined using the head-to-toe rule by using a clinometer App on a Smartphone. In this work we will evaluate the results of the application of this methodology in terms of time and

  8. Area of Concern (AOC) 314 Verification Survey at Former McClellan AFB, Sacramento, CA

    Science.gov (United States)

    2015-03-31

    at Former McClellan AFB , Sacramento, CA 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) SSgt Emily Arceo...located on the former McClellan AFB , California, from 14-17 October 2014. USAFSAM/OEC personnel performed a gamma walkover survey of the five...of concern 314, AOC 314, MARSSIM, McClellan AFB , gamma walkover survey 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT SAR 18

  9. Preliminary study of a radiological survey in an abandoned uranium mining area in Madagascar

    Science.gov (United States)

    N, Rabesiranana; M, Rasolonirina; F, Solonjara A.; Andriambololona., Raoelina; L, Mabit

    2010-05-01

    The region of Vinaninkarena located in central Madagascar (47°02'40"E, 19°57'17"S), is known to be a high natural radioactive area. Uranium ore was extracted in this region during the 1950s and the early 1960s. In the mid-1960s, mining activities were stopped and the site abandoned. In the meantime, the region, which used to be without any inhabitants, has recently been occupied by new settlers with presumed increase in exposure of the local population to natural ionizing radiation. In order to assess radiological risk, a survey to assess the soil natural radioactivity background was conducted during the year 2004. This study was implemented in the frame of the FADES Project SP99v1b_21 entitled: Assessment of the environmental pollution by multidisciplinary approach, and the International Atomic Energy Agency Technical Cooperation Project MAG 7002 entitled: Effects of air and water pollution on human health. Global Positioning System (GPS) was used to determine the geographical coordinates of the top soil samples (0-15cm) collected. The sampling was performed using a multi integrated scale approach to estimate the spatial variability of the parameters under investigation (U, Th and K) using geo-statistical approach. A total of 205 soil samples was collected in the study site (16 km2). After humidity correction, the samples were sealed in 100 cm3 cylindrical air-tight plastic containers and stored for more than 6 months to reach a secular equilibrium between parents and short-lived progeny (226Ra and progeny, 238U and 234Th). Measurements were performed using a high-resolution HPGe Gamma-detector with a 30% relative efficiency and an energy resolution of 1.8 keV at 1332.5 keV, allowing the determination of the uranium and thorium series and 40K. In case of secular equilibrium, a non-gamma-emitting radionuclide activity was deduced from its gamma emitting progeny. This was the case for 238U (from 234Th), 226Ra (from 214Pb and 214Bi) and 232Th (from 228Ac, 212Pb or

  10. Numerical modeling to assess the sensitivity and resolution of long-electrode electrical resistance tomography (LEERT) surveys to monitor CO2 migration, Phase 1B area

    Energy Technology Data Exchange (ETDEWEB)

    Ramirez, Abelardo L. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2010-05-18

    This document describes the results of a numerical modeling study that evaluated whether LEERT could be used successfully to monitor CO2 distribution in the Weyburn- Midale reservoir, Phase 1B area. The magnitude of electrical resistivity changes and the technique’s resolution depend on many site-specific factors including well separation distances, casing lengths, reservoir depth, thickness, and composition, and the effect of CO2 on the electrical properties of the reservoir. Phase 1B-specific numerical modeling of the electrical response to CO2 injection has been performed to assess sensitivity and resolution of the electrical surveys.

  11. Topographic and hydrographic GIS datasets for the Afghan Geological Survey and U.S. Geological Survey 2013 mineral areas of interest

    Science.gov (United States)

    Casey, Brittany N.; Chirico, Peter G.

    2013-01-01

    Afghanistan is endowed with a vast amount of mineral resources, and it is believed that the current economic state of the country could be greatly improved through investment in the extraction and production of these resources. In 2007, the “Preliminary Non-Fuel Resource Assessment of Afghanistan 2007” was completed by members of the U.S. Geological Survey and Afghan Geological Survey (Peters and others, 2007). The assessment delineated 20 mineralized areas for further study using a geologic-based methodology. In 2011, a follow-on data product, “Summaries and Data Packages of Important Areas for Mineral Investment and Production Opportunities of Nonfuel Minerals in Afghanistan,” was released (Peters and others, 2011). As part of this more recent work, geologic, geohydrologic, and hyperspectral studies were carried out in the areas of interest (AOIs) to assess the location and characteristics of the mineral resources. The 2011 publication included a dataset of 24 identified AOIs containing subareas, a corresponding digital elevation model (DEM), elevation contours, areal extent, and hydrography for each AOI. In 2012, project scientists identified five new AOIs and two subareas in Afghanistan. These new areas are Ahankashan, Kandahar, Parwan, North Bamyan, and South Bamyan. The two identified subareas include Obatu-Shela and Sekhab-ZamtoKalay, both located within the larger Kandahar AOI. In addition, an extended Kandahar AOI is included in the project for water resource modeling purposes. The dataset presented in this publication consists of the areal extent of the five new AOIs, two subareas, and the extended Kandahar AOI, elevation contours at 100-, 50-, and 25-meter intervals, an enhanced DEM, and a hydrographic dataset covering the extent of the new study area. The resulting raster and vector layers are intended for use by government agencies, developmental organizations, and private companies in Afghanistan to assist with mineral assessments, monitoring

  12. Institutional trust, information, and risk perceptions; Report of findings of the Las Vegas metropolitan area survey, June 29--July 1, 1992

    Energy Technology Data Exchange (ETDEWEB)

    Mushkatel, A.H.; Pijawka, K.D. [Arizona State Univ., Tempe, AZ (United States)

    1992-09-01

    This study reports on the preliminary results of a survey of attitudes and perceptions of Las Vegas area residents regarding the proposed high-level nuclear waste repository. The survey`s focus was to examine the various dimensions of trust and confidence in government`s efforts to develop the country`s nuclear waste repository in Yucca Mountain, Nevada.

  13. Determinants of Willingness to Pay for an Urban Green Area: A Contingent Valuation Survey of College Students

    OpenAIRE

    Maria Bonaventura Forleo; Nicola Gagliardi; Luca Romagnoli

    2015-01-01

    The aim of the study is to identify factors affecting young people’s willingness to pay (WTP) for the conservation of an urban green area. A questionnaire survey, based on the Contingent Valuation method, was administered to a sample of students enrolled at the University of Molise (Italy). We examine the determinants of WTP for use and non-use values, visitors’ profiles, socioeconomic characteristics and environmental attitudes. We detect factors affecting WTP decisions through logistic regr...

  14. Archaeological Survey at Fort Hood, Texas Fiscal Years 1991 and 1992: Cantonment and Belton Lake Periphery Areas

    Science.gov (United States)

    1993-12-01

    1977 The Food Crisis in Prehistory. Yale University Press, New Haven. Dickens, William A. 1993 Lithic Analysis . In Archaeological Investigations in...LAKE PERIPHERY AREA (DO#18): LITHIC ANALYSIS A total of four lithic artifacts was recovered during the survey (DO#18). These artifacts are three...Report No. 21. Dickens, William A. 1992 Lithic Analysis . In Archaeological Excavations in Bull Branch: Results of the 1990 Summer Archaeological Field

  15. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope Quasar Survey: Quasar Properties from First Data Release

    CERN Document Server

    Ai, Y L; Yang, Jinyi; Yang, Qian; Wang, Feige; Guo, Rui; Zuo, Wenwen; Dong, Xiaoyi; Zhang, Y -X; Yuan, H -L; Song, Y -H; Wang, Jianguo; Dong, Xiaobo; Yang, M; Wu, H; Shen, S -Y; Shi, J -R; He, B -L; Lei, Y -J; Li, Y -B; Luo, A -L; Zhao, Y -H; Zhang, Hao-Tong

    2015-01-01

    We present preliminary results of the quasar survey in Large Sky Area Multi- Object Fiber Spectroscopic Telescope (LAMOST) first data release (DR1), which includes pilot survey and the first year regular survey. There are 3921 quasars identified with reliability, among which 1180 are new quasars discovered in the survey. These quasars are at low to median redshifts, with highest z of 4.83. We compile emission line measurements around the H{\\alpha}, H{\\beta}, Mg II, and C IV regions for the new quasars. The continuum luminosities are inferred from SDSS photo- metric data with model fitting as the spectra in DR1 are non-flux-calibrated. We also compile the virial black hole mass estimates, and flags indicating the selec- tion methods, broad absorption line quasars. The catalog and spectra for these quasars are available online. 28% of the 3921 quasars are selected with optical- infrared colours independently, indicating that the method is quite promising in completeness of quasar survey. LAMOST DR1 and the on-g...

  16. Geophysical surveys combined with laboratory soil column experiments to identify and explore risk areas for soil and water pollution in feedlots

    Science.gov (United States)

    Espejo-Pérez, Antonio Jesus; Sainato, Claudia Mabel; Jairo Márquez-Molina, John; Giráldez, Juan Vicente; Vanderlinden, Karl

    2014-05-01

    Changes of land use without a correct planning may produce its deterioration with their social, economical and environmental irreversible consequences over short to medium time range. In Argentina, the expansion of soybean fields induced a reduction of the area of pastures dedicated to stockbreeding. As cattle activity is being progressively concentrated on small pens, at feedlots farms, problems of soil and water pollution, mainly by nitrate, have been detected. The characterization of the spatial and temporal variability of soil water content is very important because the mostly advective transport of solutes. To avoid intensive soil samplings, very expensive, one has to recur to geophysical exploration methods. The objective of this work was to identify risk areas within a feedlot of the NW zone of Buenos Aires Province, in Argentina through geophysical methods. The surveys were carried out with an electromagnetic induction profiler EMI-400 (GSSI) and a Time domain Reflectometry (TDR) survey of depth 0-0.10 m with soil sampling and measurement of moisture content with gravimetric method (0-1.0 m). Several trenches were dug inside the pens and also at a test site, where texture, apparent density, saturated hydraulic conductivity (Ks), electrical conductivity of the saturation paste extract and organic matter content (OM) were measured. The water retention curves for these soils were also determined. At one of the pens undisturbed soil columns were extracted at 3 locations. Laboratory analysis for 0-1.0 m indicated that soil texture was classified as sandy loam, average organic matter content (OM) was greater than 2.3% with low values of apparent density in the first 10 cm. The range of spatial dependence of data suggested that the number of soil samples could be reduced. Soil apparent electrical conductivity (ECa) and soil moisture were well correlated and indicated a clear spatial pattern in the corrals. TDR performance was acceptable to identify the spatial

  17. SURVEY

    DEFF Research Database (Denmark)

    SURVEY er en udbredt metode og benyttes inden for bl.a. samfundsvidenskab, humaniora, psykologi og sundhedsforskning. Også uden for forskningsverdenen er der mange organisationer som f.eks. konsulentfirmaer og offentlige institutioner samt marketingsafdelinger i private virksomheder, der arbejder...... med surveys. Denne bog gennemgår alle surveyarbejdets faser og giver en praktisk indføring i: • design af undersøgelsen og udvælgelse af stikprøver, • formulering af spørgeskemaer samt indsamling og kodning af data, • metoder til at analysere resultaterne...

  18. The European Large-Area ISO Survey (ELAIS): the final band-merged catalogue

    DEFF Research Database (Denmark)

    Rowan-Robinson, M.; Lari, C.; Perez-Fournon, I.

    2004-01-01

    hyperluminous infrared galaxies (L-ir > 13.22) and nine extremely red objects (EROs) (r - K > 6) are found in the survey. The latter are interpreted as ultraluminous dusty infrared galaxies at z similar to 1. The large numbers of ultraluminous galaxies imply very strong evolution in the star formation rate...

  19. Archaeological survey of Kongakut-Firth River area: Summary of a paper

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Archeological evidence which might indicate a trace of man’s migration from Asia into the New World was the object of a one-man survey of the Kongakut-Firth River...

  20. The estimation of sea floor dynamics from bathymetric surveys of a sand wave area

    NARCIS (Netherlands)

    Dorst, Leendert; Roos, Pieter C.; Hulscher, Suzanne J.M.H.; Lindenbergh, R.C.

    2009-01-01

    The analysis of series of offshore bathymetric surveys provides insight into the morphodynamics of the sea floor. This knowledge helps to improve resurvey policies for the maintenance of port approaches and nautical charting, and to validate morphodynamic models. We propose a method for such an anal

  1. Geophysical survey of 105-DR Pluto Crib, 116-DR-4, 100-D Area

    Energy Technology Data Exchange (ETDEWEB)

    Bergstrom, K.A.

    1993-10-01

    The objective of this Geophysical Survey was to verify the location of the 105-DR Pluto Crib, 116-DR-4. A surface monument currently marks its location. The crib is 10 feet by 10 feet and 15 feet deep. Ground-Penetrating Radar was the geophysical method selected to conduct the investigation.

  2. Archaeological Survey and Testing of Areas along Main Ditch and Ditch 9, Pemiscot County, Missouri.

    Science.gov (United States)

    1987-01-15

    These include nine Clovis and Clovis -like points from the Bootheel (Cha:narn .975:93). No intact sites have yet beer - tifiec from this perioc, aria...and J. H. House .982 A Cultura . soeurces OvervLew o± the Ozark-St. 7rancs Nationa7 Forelsts Arkansas. Arkansas Archeological Survey, Fayetteville

  3. A Comparison of Electromagnetic Induction Mapping to Measurements of Maximum Effluent Flow Depth for Assessing Flow Paths in Vegetative Treatment Areas

    Science.gov (United States)

    Vegetative treatment systems (VTSs) are one type of control structure that has shown potential to control runoff from open feedlots. To achieve maximum performance, sheet-flow over the width of the vegetative treatment area (VTA) is required. Tools, such as maps of flow paths through the VTA, are ne...

  4. Impact of chronic respiratory symptoms in a rural area of sub-Saharan Africa : an in-depth qualitative study in the Masindi district of Uganda

    NARCIS (Netherlands)

    van Gemert, Frederik; Chavannes, Niels; Nabadda, Nahid; Luzige, Simon; Kirenga, Bruce; Eggermont, Celeste; de Jong, Corina; van der Molen, Thys

    2013-01-01

    Background: Chronic obstructive pulmonary disease (COPD), once regarded as a disease of developed countries, is now recognised as a common disease in low- and middle-income countries. No studies have been performed to examine how the community in resource-poor settings of a rural area in sub-Saharan

  5. The Costs of Providing Instruction in French Language Instructional Units: In-Depth Study of Eight Areas Where There Exists a High Concentration of Francophones.

    Science.gov (United States)

    Desjarlais, Lionel

    The purpose of this study was to determine the costs of providing instruction in French to students enrolled in French-language instructional units in areas of high concentration of Francophones. Chapter 1, which makes up most of the study, consists of separate case studies of eight educational jurisdictions that encompass a major proportion of…

  6. Survey of roadside alien plants in Hawai`i Volcanoes National Park and adjacent residential areas 2001-2005

    Science.gov (United States)

    Bio, Keali'i F.; Pratt, Linda W.; Jacobi, James D.

    2012-01-01

    The sides of all paved roads of Hawai`i Volcanoes National Park (HAVO) were surveyed on foot in 2001 to 2005, and the roadside presence of 240 target invasive and potentially invasive alien plant species was recorded in mile-long increments. Buffer zones 5–10 miles (8–16 km) long along Highway 11 on either side of the Kīlauea and Kahuku Units of the park, as well as Wright Road that passed by the disjunct `Ōla`a Tract Unit, were included in the survey. Highway 11 is the primary road through the park and a major island thoroughfare. Three residential subdivisions adjacent to the park were similarly surveyed in 0.5–1 mile (0.8–1.6 km) intervals in 2003, and data were analyzed separately. Two roads to the east and northeast were also surveyed, but data from these disjunct areas were analyzed separately from park roads. In total, 174 of the target alien species were observed along HAVO roads and buffers, exclusive of residential areas, and the mean number of target aliens per mile surveyed was 20.6. Highway 11 and its buffer zones had the highest mean number of target alien plants per mile (26.7) of all park roads, and the Mauna Loa Strip Road had the lowest mean (11.7). Segments of Highway 11 adjacent to HAVO and Wright Road next to `Ōla`a Tract had mean numbers of target alien per mile (24–47) higher than those of any internal road. Alien plant frequencies were summarized for each road in HAVO. Fifteen new records of vascular plants for HAVO were observed and collected along park roads. An additional 28 alien plant species not known from HAVO were observed along the buffer segments of Highway 11 adjacent to the park. Within the adjacent residential subdivisions, 65 target alien plant species were sighted along roadsides. At least 15 potentially invasive species not currently found within HAVO were observed along residential roads, and several other species found there have been previously eliminated from the park or controlled to remnant populations

  7. A Survey Level Report of the Johns Creek Drainage Canal Wetlands Permit Area, Shelby County, Tennessee

    Science.gov (United States)

    1981-03-01

    Mississippi and the southwestern Tennessee area as "vassal provinces" to the’Late Mississippian Nodena cultura of northeastern Arkansas. Chronological... Clovis material (40SY7). Most of what Peterson (1979a) has defined as Paleo for this area is actually best considered to be affiliated with the late Paleo

  8. Serological Survey of Hantavirus in Inhabitants from Tropical and Subtropical Areas of Brazil

    Directory of Open Access Journals (Sweden)

    Felipe Alves Morais

    2016-01-01

    Full Text Available Brazil has reported more than 1,600 cases of hantavirus cardiopulmonary syndrome (HPS since 1993, with a 39% rate of reported fatalities. Using a recombinant nucleocapsid protein of Araraquara virus, we performed ELISA to detect IgG antibodies against hantavirus in human sera. The aim of this study was to analyze hantavirus antibody levels in inhabitants from a tropical area (Amazon region in Rondônia state and a subtropical (Atlantic Rain Forest region in São Paulo state, Brazil. A total of 1,310 serum samples were obtained between 2003 and 2008 and tested by IgG-ELISA, and 82 samples (6.2%, of which 62 were from the tropical area (5.8% and 20 from the subtropical area (8.3%, tested positive. Higher levels of hantavirus antibody were observed in inhabitants of the populous subtropical areas compared with those from the tropical areas in Brazil.

  9. Serological Survey of Hantavirus in Inhabitants from Tropical and Subtropical Areas of Brazil

    Science.gov (United States)

    Pereira, Alexandre; Santo Pietro Pereira, Aparecida; Lazaro Moreli, Marcos; Marcelo Aranha Camargo, Luís; Schiavo Nardi, Marcello; Farah Tófoli, Cristina; Araujo, Jansen; Mara Dutra, Lilia; Lopes Ometto, Tatiana; Hurtado, Renata; Carmona de Jesus Maués, Fábio; Zingano Hinke, Tiene; Jaber Mahmud, Sati; Correia Lima, Monica; Tadeu Moraes Figueiredo, Luiz; Luiz Durigon, Edison

    2016-01-01

    Brazil has reported more than 1,600 cases of hantavirus cardiopulmonary syndrome (HPS) since 1993, with a 39% rate of reported fatalities. Using a recombinant nucleocapsid protein of Araraquara virus, we performed ELISA to detect IgG antibodies against hantavirus in human sera. The aim of this study was to analyze hantavirus antibody levels in inhabitants from a tropical area (Amazon region) in Rondônia state and a subtropical (Atlantic Rain Forest) region in São Paulo state, Brazil. A total of 1,310 serum samples were obtained between 2003 and 2008 and tested by IgG-ELISA, and 82 samples (6.2%), of which 62 were from the tropical area (5.8%) and 20 from the subtropical area (8.3%), tested positive. Higher levels of hantavirus antibody were observed in inhabitants of the populous subtropical areas compared with those from the tropical areas in Brazil. PMID:27034670

  10. Weapons Storage Area Survey of Munitions Storage Igloos at Medina Annex, San Antonio, Texas

    Science.gov (United States)

    2013-11-13

    samples were composited, ashed, underwent uranium extraction , and analyzed by α-spectroscopy. Attachment 4 contains a tabular listing of the results of...contamination survey, weapons storage, munitions, highly enriched uranium , depleted uranium 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT SAR...Attachment 2 contains a description of the radiological contaminants of concern. Highly enriched uranium (HEU) and depleted uranium (DU) were the

  11. Remote-Sensing Survey of the Bayou Labranche Wetlands Restoration Borrow Area, St. Charles Parish, Louisiana

    Science.gov (United States)

    1993-03-01

    showing Bayou Labranche-Bayou Trepagnier as the Tigouyn River ................................... 32 9. Survey of Claims of Pierre Marie Cabaret d’Etrepy...Pierre Marie Cabaret d’Etrepy, and the other tract of 18 1/2 arpents owned by Jean Francois Piseros (Maduell 1975:68, 72). In the following discussions...1975:iii). The claim of Pierre Marie Cabaret d’Etrepy was confirmed as having 15 arpents 11 toises and 9 links along the river with an extension to the

  12. Candidate Gravitationally Lensed Dusty Star-forming Galaxies in the Herschel Wide Area Surveys

    CERN Document Server

    Nayyeri, H; Cooray, A; Riechers, D A; Ivison, R J; Harris, A I; Frayer, D T; Baker, A J; Chapman, S C; Eales, S; Farrah, D; Fu, H; Marchetti, L; Marques-Chaves, R; Martinez-Navajas, P I; Oliver, S; Omont, A; Perez-Fournon, I; Scott, D; Vaccari, M; Vieira, J; Viero, M; Wardlow, J

    2016-01-01

    We present a list of candidate gravitationally lensed dusty star-forming galaxies (DSFGs) from the HerMES Large Mode Survey (HeLMS) and the Herschel Stripe 82 Survey (HerS). Together, these partially overlapping surveys cover 372 deg^2 on the sky. After removing local spiral galaxies and known radio-loud blazars, our candidate list of lensed DSFGs is composed of 77 sources with 500 micron flux densities (S_500) greater than 100 mJy. Such sources are likely dusty starburst galaxies that are selected as bright sub-millimeter galaxies (SMGs). We expect a large fraction of this list to be strongly lensed, with a small fraction made up of bright SMG-SMG mergers that appear as hyper-luminous infrared galaxies (HyLIRGs). Thirteen of the 77 candidates have spectroscopic redshifts from CO spectroscopy with ground-based interferometers, putting them at z>1 and well above the redshift of the foreground lensing galaxies. The surface density of our sample of 0.21 +/- 0.03 deg^-2. We also find nine radio-bright blazars tha...

  13. Optical local area network emulations over Ethernet passive optical networks: A survey

    Institute of Scientific and Technical Information of China (English)

    PENG YunFeng; KUANG YuJun; LONG KePing

    2008-01-01

    As a promising solution to efficiently achieving fiber to the home (FTTH), Ethernet passive optical network (EPON) is currently improved to provide intercommunica-tion among customers, together with normal traffic delivery, via optical local area network emulation. It is a new research direction and expected to enhance the normal EPON performances. The purpose of this article is to review the state-of-the-art solutions to emulating optical local area networks (OLANs) over EPON. We discuss the major problems involved, e.g., network architecture, control mecha-nisms, and other potential enhancements. We also outline areas for future re-searches.

  14. Snow Depth Retrieval with UAS Using Photogrammetric Techniques

    Directory of Open Access Journals (Sweden)

    Benjamin Vander Jagt

    2015-07-01

    Full Text Available Alpine areas pose challenges for many existing remote sensing methods for snow depth retrieval, thus leading to uncertainty in water forecasting and budgeting. Herein, we present the results of a field campaign conducted in Tasmania, Australia in 2013 from which estimates of snow depth were derived using a low-cost photogrammetric approach on-board a micro unmanned aircraft system (UAS. Using commercial off-the-shelf (COTS sensors mounted on a multi-rotor UAS and photogrammetric image processing techniques, the results demonstrate that snow depth can be accurately retrieved by differencing two surface models corresponding to the snow-free and snow-covered scenes, respectively. In addition to accurate snow depth retrieval, we show that high-resolution (50 cm spatially continuous snow depth maps can be created using this methodology. Two types of photogrammetric bundle adjustment (BA routines are implemented in this study to determine the optimal estimates of sensor position and orientation, in addition to 3D scene information; conventional BA (which relies on measured ground control points and direct BA (which does not require ground control points. Error sources that affect the accuracy of the BA and subsequent snow depth reconstruction are discussed. The results indicate the UAS is capable of providing high-resolution and high-accuracy (<10 cm estimates of snow depth over a small alpine area (~0.7 ha with significant snow accumulation (depths greater than one meter at a fraction of the cost of full-size aerial survey approaches. The RMSE of estimated snow depths using the conventional BA approach is 9.6 cm, whereas the direct BA is characterized by larger error, with an RMSE of 18.4 cm. If a simple affine transformation is applied to the point cloud derived from the direct BA, the overall RMSE is reduced to 8.8 cm RMSE.

  15. Topographic and Hydrographic GIS Datasets for the Afghanistan Geological Survey and U.S. Geological Survey 2014 Mineral Areas of Interest

    Science.gov (United States)

    DeWitt, Jessica D.; Chirico, Peter G.; Malpeli, Katherine C.

    2015-11-18

    Mineral extraction and associated industries play an important role in the Afghan economy, particularly in the “transitional era” of declining foreign aid and withdrawal of foreign troops post 2014. In addition to providing a substantial source of government revenue, other potential benefits of natural resource development include boosted exports, employment opportunities, and strengthened industrialization (Joya, 2012). Continued exploration and investment in these industries has resulted in large economic improvements since 2007, when this series of studies was initiated. At that time, the “Preliminary Non-Fuel Mineral Resource Assessment of Afghanistan” was completed by members of the U.S. Geological Survey and Afghanistan Geological Survey (Peters and others, 2007). The assessment published a series of country-wide datasets, including a digital elevation model (DEM), elevation contours, hydrography, transportation routes, geophysics, and cultural datasets (Peters and others, 2007). It also delineated 20 mineralized areas for further study using a geologic-based methodology. A second data product, “Summaries of Important Areas for Mineral Investment and Production Opportunities of Nonfuel Minerals in Afghanistan,” was released by Peters and others in 2011. This work highlighted geologic, geohydrologic, and hyperspectral studies that were carried out in specific Areas of Interest (AOIs) to assess the location and characteristics of mineral resources. Also included in the 2011 publication is a collection of appendixes and inventories of Geographic Information System (GIS) datasets for each of the 24 identified AOIs. A third data product was released in 2013 (Casey and Chirico, 2013), publishing datasets for five different AOIs, two subareas, and one AOI extension. Each dataset contains vector shapefiles of the AOI boundary, streams, roads, and contours at 25-, 50-, and 100-meter (m) intervals, as well as raster files of the AOI’s DEM and hillshade.

  16. Major- and Trace-Element Concentrations in Soils from Two Geochemical Surveys (1972 and 2005) of the Denver, Colorado, Metropolitan Area

    Science.gov (United States)

    Kilburn, James E.; Smith, David B.; Closs, L. Graham; Smith, Steven M.

    2007-01-01

    Introduction This report contains major- and trace-element concentration data for soil samples collected in 1972 and 2005 from the Denver, Colorado, metropolitan area. A total of 405 sites were sampled in the 1972 study from an area approximately bounded by the suburbs of Golden, Thornton, Aurora, and Littleton to the west, north, east, and south, respectively. This data set included 34 duplicate samples collected in the immediate vicinity of the primary sample. In 2005, a total of 464 sites together with 34 duplicates were sampled from the same approximate localities sampled in 1972 as well as additional sites in east Aurora and the area surrounding the Rocky Mountain Arsenal. Sample density for both surveys was on the order of 1 site per square mile. At each site, sample material was collected from a depth of 0-5 inches. Each sample collected was analyzed for near-total major- and trace-element composition by the following methods: (1) inductively coupled plasma-mass spectrometry (ICP-MS) and inductively coupled plasma-atomic emission spectrometry (ICP-AES) for aluminum, antimony, arsenic, barium, beryllium, bismuth, cadmium, calcium, cerium, cesium, chromium, cobalt, copper, gallium, indium, iron, lanthanum, lead, lithium, magnesium, manganese, molybdenum, nickel, niobium, phosphorus, potassium, rubidium, scandium, silver, sodium, strontium, sulfur, tellurium, thallium, thorium, tin, titanium, tungsten, uranium, vanadium, yttrium, and zinc; and (2) hydride generation-atomic absorption spectrometry for selenium. The samples collected in 2005 were also analyzed by a cold vapor-atomic absorption method for mercury. This report makes available the analytical results of these studies.

  17. Fish, Benthic and Urchin Survey Data from Kahekili Herbivore Fisheries Management Area (HFMA), Maui since 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In 2009, the state of Hawaii established the Kahekili Herbivore Fisheries Management Area (KHFMA) in West Maui. Fishing for herbivores (parrotfishes, surgeonfishes,...

  18. Biological surveys in the Firth-Mancha Research Natural Area, Alaska, 1979-1980

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — At Mancha Creek, an area within the forest-tundra ecotone, five major habitat types were identified and studied intensively for aspects of vegetation composition,...

  19. Biological Surveys in the Firth-Mancha Research Natural Area, Alaska, 1979-1980

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — At Mancha Creek, an area within the foresttundra ecotone, five major habitat types were identified and studied intensively for aspects of vegetation composition,...

  20. A Survey on Software Project Management Report Part I Importance of Project Management Areas

    OpenAIRE

    Demir, Kadir Alpaslan

    2008-01-01

    Visit research website for more information and reports http://faculty.nps.edu/kdemir/spm.htm The objectives of this study are to identify (i) the importance of various project management areas and (ii) project management challenges in software projects.

  1. Radiological survey and decontamination of the former main technical area (TA-1) at Los Alamos, New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Ahlquist, A.J.; Stoker, A.K.; Trocki, L.K. (comps.)

    1977-12-01

    A radiological survey was conducted on the undeveloped portions of the site of the former Main Technical Area (TA-1) of the Los Alamos Scientific Laboratory in north-central New Mexico. Between 1943 and 1965, research work on nuclear weapons was carried out in TA-1. The area was decontaminated and demolished in stages, and beginning in 1966 the land was given to Los Alamos County or sold to private interests. The survey disclosed traces of radioactive contamination undetected or considered insignificant during original demolition in the 1950s and 1960s. The remaining contamination was removed in 1975 and 1976 to levels considered to pose no health or safety hazards and, further, to the lowest levels considered practicable. Methods used in the survey included measurement techniques for detecting alpha emitters such as uranium and plutonium, extensive surface and subsurface soil sampling, and use of conventional health physics instrumentation to provide detailed information on approximately 16 hectares (40 acres) of land. As a result of the decontamination efforts, approximately 15,000 m/sup 3/ of contaminated or potentially contaminated material was removed to an approved radioactive waste disposal site on ERDA property. Full details of the methods, findings, decision criteria, and as-left conditions are documented.

  2. Bent-Tailed Radio Sources in the Australia Telescope Large Area Survey of the Chandra Deep Field-South

    CERN Document Server

    Dehghan, Siamak; Franzen, Thomas M O; Norris, Ray P; Miller, Neal A

    2015-01-01

    Using the 1.4 GHz Australia Telescope Large Area Survey (ATLAS), supplemented with the 1.4 GHz Very Large Array images, we undertook a search for bent-tailed (BT) radio galaxies in the Chandra Deep Field-South (CDFS). Here we present a catalog of 56 detections, which include 45 bent-tailed sources, four diffuse low-surface-brightness objects (one relic, two halos, and one unclassified object), and a further seven complex, multi-component sources. We report BT sources with rest-frame powers in the range $10^{22} \\leq$ $\\textrm{P}_{1.4 \\textrm{ GHz}} \\leq 10^{26}$ W Hz$^{-1}$, redshifts up to 2 and linear extents from tens of kpc up to about one Mpc. This is the first systematic study of such sources down to such low powers and high redshifts and demonstrates the complementary nature of searches in deep, limited area surveys as compared to shallower, large surveys. Of the sources presented here one is the most distant bent-tailed source yet detected at a redshift of 2.1688. Two of the sources are found to be as...

  3. A Survey on Software Project Management Report Part I Importance of Project Management Areas (Short Version)

    OpenAIRE

    Demir, Kadir Alpaslan

    2008-01-01

    Visit research website for more information and reports http://faculty.nps.edu/kdemir/spm.htm Objectives of this Study: The objectives of this study are to identify (i) the importance of various project management areas and (ii) project management challenges in software projects. This study is conducted to form a basis for a software project management framework. This report focuses on the first part of the objective. The project management areas are identified through extensiv...

  4. A Cultural Resources Survey of Proposed Project Areas in the Buffalo Harbor, Erie County, New York

    Science.gov (United States)

    1984-01-01

    n voyageurs may have visited the area. -L 1 The period between 1650 and 1700 saw a more intensive French effort in this area and Erie County was...waterborne commerce . These developments did not occur without competition from rivals, especially from shipping interests centered in Black Rock, a village...Buffalo Harbor is a success story in American commerce and in the history of Corps of Engineer contributions to the public. Prior to 1818, the entrance to

  5. Archeological Survey of Selected Fish and Wildlife Management Areas at Pomme de Terre and Stockton Lakes, Dade, Hickory, and Polk Counties, Missouri

    Science.gov (United States)

    1989-01-01

    Selected Fish and Wildlife Management Areas at Pomme de Terre and Stockton Lakes, Dade, Hickory, and Polk Counties, Missouri Contract No. DACW41-81-C...Jackson _________________________56 1989 907 0J) O . ARCHEOLOGICAL SURVEY OF SELECTED FISH AND WILDLIFE MANAGEMENT AREAS AT POMME DE TERRE AND...NO. NO. ACCESSION NO. 11. TITLE (Include Securrty Classification) Archeological Survey of Selected Fish and Wildlife Management Areas at Pomme de Terre

  6. Survey of Sand Flies (Diptera: Psychodidae) in an Environmentally Protected Area in Brazil

    Science.gov (United States)

    Silva Reis, Alanna; Marteleto Nunes Rugani, Jeronimo; Sampaio Pereira, Agnes Antônia; Rêgo, Felipe Dutra; Vianna Mariano da Rocha Lima, Ana Cristina

    2015-01-01

    Brazil is one of the most important endemic areas for leishmaniasis worldwide. Protected areas that are tourist attractions likely present an important risk of transmission of cutaneous leishmaniasis (CL). Furthermore, with the geographical expansion of visceral leishmaniasis (VL), several studies have recorded the occurrence of its vector, Lutzomyia longipalpis, and cases of human and canine VL in such tourist areas. The Parque Estadual do Sumidouro is an environmentally protected area located in the Brazilian Cerrado biome and in an important area endemic for leishmaniasis in the state of Minas Gerais. The purpose of this study was to monitor the sand fly fauna in areas of tourist activity in the park. Sampling was performed every month, from September 2011 to August 2013, using CDC light traps at six sites of differing environmental characteristics. Sampled specimens were identified following Galati (2003), and females were submitted to molecular techniques for the detection and identification of Leishmania DNA. A total of 4,675 sand fly specimens of 25 species belonging to nine genera were collected. The most abundant species were Micropygomyia quinquefer, Lutzomyia renei and Pintomyia pessoai, although only Pi. pessoai is implicated in the transmission of Leishmania braziliensis. The species accumulation curve reached saturation on the 16th sampling event. Species richness, diversity and evenness differed among the sampled areas. The seasonal curve was not determined by a single unique species, and no single species was the most abundant in all environments sampled. The main vector of Leishmania (Leishmania) infantum, Lutzomyia longipalpis, accounted for only 5.35% of the specimens collected. Proven or suspected vectors of Leishmania (Viannia) braziliensis were recorded, and one female of the cortellezzii complex tested positive for Le. braziliensis DNA. Even with a low infection rate (0.62%), these data indicate the circulation of the parasite and reinforce

  7. Survey of sand flies (Diptera: Psychodidae in an environmentally protected area in Brazil.

    Directory of Open Access Journals (Sweden)

    Lara Saraiva

    Full Text Available Brazil is one of the most important endemic areas for leishmaniasis worldwide. Protected areas that are tourist attractions likely present an important risk of transmission of cutaneous leishmaniasis (CL. Furthermore, with the geographical expansion of visceral leishmaniasis (VL, several studies have recorded the occurrence of its vector, Lutzomyia longipalpis, and cases of human and canine VL in such tourist areas. The Parque Estadual do Sumidouro is an environmentally protected area located in the Brazilian Cerrado biome and in an important area endemic for leishmaniasis in the state of Minas Gerais. The purpose of this study was to monitor the sand fly fauna in areas of tourist activity in the park. Sampling was performed every month, from September 2011 to August 2013, using CDC light traps at six sites of differing environmental characteristics. Sampled specimens were identified following Galati (2003, and females were submitted to molecular techniques for the detection and identification of Leishmania DNA. A total of 4,675 sand fly specimens of 25 species belonging to nine genera were collected. The most abundant species were Micropygomyia quinquefer, Lutzomyia renei and Pintomyia pessoai, although only Pi. pessoai is implicated in the transmission of Leishmania braziliensis. The species accumulation curve reached saturation on the 16th sampling event. Species richness, diversity and evenness differed among the sampled areas. The seasonal curve was not determined by a single unique species, and no single species was the most abundant in all environments sampled. The main vector of Leishmania (Leishmania infantum, Lutzomyia longipalpis, accounted for only 5.35% of the specimens collected. Proven or suspected vectors of Leishmania (Viannia braziliensis were recorded, and one female of the cortellezzii complex tested positive for Le. braziliensis DNA. Even with a low infection rate (0.62%, these data indicate the circulation of the parasite

  8. Survey of sand flies (Diptera: Psychodidae) in an environmentally protected area in Brazil.

    Science.gov (United States)

    Saraiva, Lara; Silva Reis, Alanna; Marteleto Nunes Rugani, Jeronimo; Sampaio Pereira, Agnes Antônia; Rêgo, Felipe Dutra; Vianna Mariano da Rocha Lima, Ana Cristina; Gontijo, Célia Maria Ferreira; Andrade Filho, José Dilermando

    2015-01-01

    Brazil is one of the most important endemic areas for leishmaniasis worldwide. Protected areas that are tourist attractions likely present an important risk of transmission of cutaneous leishmaniasis (CL). Furthermore, with the geographical expansion of visceral leishmaniasis (VL), several studies have recorded the occurrence of its vector, Lutzomyia longipalpis, and cases of human and canine VL in such tourist areas. The Parque Estadual do Sumidouro is an environmentally protected area located in the Brazilian Cerrado biome and in an important area endemic for leishmaniasis in the state of Minas Gerais. The purpose of this study was to monitor the sand fly fauna in areas of tourist activity in the park. Sampling was performed every month, from September 2011 to August 2013, using CDC light traps at six sites of differing environmental characteristics. Sampled specimens were identified following Galati (2003), and females were submitted to molecular techniques for the detection and identification of Leishmania DNA. A total of 4,675 sand fly specimens of 25 species belonging to nine genera were collected. The most abundant species were Micropygomyia quinquefer, Lutzomyia renei and Pintomyia pessoai, although only Pi. pessoai is implicated in the transmission of Leishmania braziliensis. The species accumulation curve reached saturation on the 16th sampling event. Species richness, diversity and evenness differed among the sampled areas. The seasonal curve was not determined by a single unique species, and no single species was the most abundant in all environments sampled. The main vector of Leishmania (Leishmania) infantum, Lutzomyia longipalpis, accounted for only 5.35% of the specimens collected. Proven or suspected vectors of Leishmania (Viannia) braziliensis were recorded, and one female of the cortellezzii complex tested positive for Le. braziliensis DNA. Even with a low infection rate (0.62%), these data indicate the circulation of the parasite and reinforce

  9. Who should manage protected areas in the Swedish mountain region? A survey approach to co-management.

    Science.gov (United States)

    Zachrisson, Anna

    2008-04-01

    This article investigates attitudes towards co-management of protected areas in Sweden, at the national, county and local level. In Sweden, protected areas are still primarily designated and managed hierarchically-a practice increasingly contested by people living close to them, including indigenous Sámi reindeer herders whose economic activities are located within protected areas. The general view could, on the contrary, be anticipated to be pro-state since protected areas are considered to be of national interest. For democratic reasons, however, the opinions of the whole population should be considered. In order to measure both local and general views, this study is based on a two-sample survey of 8868 respondents. The objectives are to map and explain attitudes regarding who should manage protected areas in Sweden, and to test the usefulness of a multi-level quantitative method. Such an approach is unusual in co-management literature that is empirically mainly based on local case studies. The explanatory ambition sets out to test three hypotheses drawn from common-pool resource theory; resource dependency, common understanding, and trust. Perhaps surprisingly, the results show that a considerable majority of the respondents (at all levels) wish to see self- or co-management. All three hypotheses are important to understand attitudes toward the management of protected areas, but not always in the way that the theory anticipates.

  10. Seismic Survey Report for Central Nevada Test Area, Subsurface, Correction Action Unit 443, Revision 1

    Energy Technology Data Exchange (ETDEWEB)

    None

    2008-12-19

    The seismic survey was successful in imaging the water table and underlying structures at the site. The configuration of the water table reflector confirms the general southeast horizontal flow direction in the alluvial aquifer. Offsets in the water table reflector, both at known faults that reach the surface and at subsurface faults not previously recognized, indicate that both extension and blast-related faults are barriers to lateral groundwater flow. The results from this study have been used to optimally locate two new wells designed to monitor head levels and possible contaminant migration in the alluvial aquifer at CTNA.

  11. Applying of Electrical Imaging Survey (EIS) to Evaluate Leachate Pollution in Underground Area of Informal Landfill

    DEFF Research Database (Denmark)

    Du, Song; Wang, Di; Mou, Zishen

    2014-01-01

    An informal landfill is an open dump that pollutes the underground environment because it lacks an impervious liner. The leakage of such a landfill is unidirectional and thus difficult to directly test. This study uses electrical imaging survey to evaluate the pollution of the underground...... environment of an informal landfill for municipal solid waste in Beijing. We hypothesize that every location has a specific resistivity resulting from the leachate. We use the membership function of fuzzy mathematics to quantitatively represent the pollution of the underground environment in the sanitary...

  12. Industrial-hygiene survey of the zinc cell room, anode room, and zinc-casting area, Bunker Hill Company Kellogg, Idaho

    Energy Technology Data Exchange (ETDEWEB)

    Larson, L.B.

    1971-06-01

    A study was begun at the Bunker Hill Company at the request of the state mine inspector to determine possible health hazards to workers at the smelter and zinc refinery located in Kellogg, Idaho. In-depth surveys were conducted of the lead anode room, the cell room, the zinc casting department, and the old roaster building and roaster number 5 building. The facility produced over 300 tons of high-purity zinc per day. At the roasters any sulfur was burned off in the form of sulfer dioxide gas which escaped into the work atmosphere. Large amounts of fumes were emitted from the scrap furnace and the number 2 furnace. Workers in the cell room did not wear any respiratory protection. Considerable dust was noted at the mixer and screening operation. Huge dust accumulations were noted on the ledges of the roaster building, even though the building does have a vacuum system. Workers were also exposed to nitrogen dioxide fumes. Zinc and lead concentrations were measured in the air. At the casting area, zinc oxide fumes were emitted into the work environment with values above 5 mg/cu m being recorded.

  13. Overall analysis report on the fiscal 1994 geothermal development promotion survey. No.C-2. Wasabizawa area (secondary); 1994 nendo chinetsu kaihatsu sokushin chosa sogo kaiseki hokokusho. No.C-2. Wasabizawa chiiki (dainiji)

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-01-01

    The Wasabizawa area is located near the boundary between Yuzawa city south of Akita pref. and Ogachi-machi, Ogachi-gun, Akita pref, having a range of 3.0km northeast-southwest and 2.5km northwest-southeast of Wasabizawa almost as a center. The area for survey and its circumference are national forests, and the east and a part of the south of the area are designated as the Kurikoma quasi-national park third type special region. From the geochemical temperature distribution, it can be assumed that geothermal fluids of around 300{degree}C exist in the deep underground of the Kaminotai-Wasabizawa-Akinomiya area. From the distribution of density basements, the block structure of the basement can be estimated. Around the boundary of the ridge/sedimentation region of this density basement, fractures develop and the formation of reservoir structure is expected from the comparison with the result of the well survey. In the blowout test, obtained were 284.3{degree}C and 83.05 kgf/cm{sup 2} at a depth of 1,300m. In the geothermal system, it is assumed that reservoir structures of geothermal fluids develop in the deep underground of the central part of the area. The heat source to the geothermal system is supposed to be the magma reservoir remaining in Takamatsudake volcanic rocks. 110 refs., 177 figs., 105 tabs.

  14. Epidemiological survey of Trichinella infection in some areas of Henan Province

    Directory of Open Access Journals (Sweden)

    Bianli X.

    2001-06-01

    Full Text Available During 1996-1998 epidemiological survey of domestic Trichinella spiralis infection and serological survey on human beings were carried out in Yanling, Xuchang counties and Luohe city. By the artificial digestion method, the positive rates of pork in market and mutton were 1.6 % and 0.6 % respectively. Meat samples of pigs from pig-farms, cats and dogs were all negative for Trichinella larvae. Trichinellosis infection levels in rats captured in peasant households and places around abattoirs were 0.5 % and 4.1 % respectively (P < 0.05. By ELISA (double-antibody with excretion-secretion (ES antigens of Trichinella larvae, the positive rates of antibodies against Trichinella in sera of peasants and professional drivers were 2.2 % and 7.8 % (P < 0.05. The positive rates of antibodies in pigs from pig-farms and from peasant households were 1 % and 7 % respectively (P < 0.05. The levels of anti- Trichinella antibodies in rats captured in peasant households and places close to abattoirs were 0 % and 11.1 % respectively. Trichinella spiralis larvae were found in the washing meat slop in abattoirs.

  15. Assessment of Systematic Chromatic Errors that Impact Sub-1% Photometric Precision in Large-Area Sky Surveys

    Energy Technology Data Exchange (ETDEWEB)

    Li, T. S. [et al.

    2016-05-27

    Meeting the science goals for many current and future ground-based optical large-area sky surveys requires that the calibrated broadband photometry is stable in time and uniform over the sky to 1% precision or better. Past surveys have achieved photometric precision of 1-2% by calibrating the survey's stellar photometry with repeated measurements of a large number of stars observed in multiple epochs. The calibration techniques employed by these surveys only consider the relative frame-by-frame photometric zeropoint offset and the focal plane position-dependent illumination corrections, which are independent of the source color. However, variations in the wavelength dependence of the atmospheric transmission and the instrumental throughput induce source color-dependent systematic errors. These systematic errors must also be considered to achieve the most precise photometric measurements. In this paper, we examine such systematic chromatic errors using photometry from the Dark Energy Survey (DES) as an example. We define a natural magnitude system for DES and calculate the systematic errors on stellar magnitudes, when the atmospheric transmission and instrumental throughput deviate from the natural system. We conclude that the systematic chromatic errors caused by the change of airmass in each exposure, the change of the precipitable water vapor and aerosol in the atmosphere over time, and the non-uniformity of instrumental throughput over the focal plane, can be up to 2% in some bandpasses. We compare the calculated systematic chromatic errors with the observed DES data. For the test sample data, we correct these errors using measurements of the atmospheric transmission and instrumental throughput. The residual after correction is less than 0.3%. We also find that the errors for non-stellar objects are redshift-dependent and can be larger than those for stars at certain redshifts.

  16. Design of the health examination survey on early childhood physical growth in the Great East Japan Earthquake affected areas.

    Science.gov (United States)

    Matsubara, Hiroko; Ishikuro, Mami; Kikuya, Masahiro; Chida, Shoichi; Hosoya, Mitsuaki; Ono, Atsushi; Kato, Noriko; Yokoya, Susumu; Tanaka, Toshiaki; Isojima, Tsuyoshi; Yamagata, Zentaro; Tanaka, Soichiro; Kuriyama, Shinichi; Kure, Shigeo

    2017-03-01

    To investigate the impact of the Great East Japan Earthquake on preschool children's physical growth in the disaster-affected areas, the three medical universities in Iwate, Miyagi, and Fukushima Prefectures conducted a health examination survey on early childhood physical growth. The survey was conducted over a 3-year period to acquire data on children who were born in different years. Our targets were as follows: 1) children who were born between March 1, 2007 and August 31, 2007 and experienced the disaster at 43-48 months of age, 2) children who were born between March 1, 2009 and August 31, 2009 and experienced the disaster at 19-24 months of age, and 3) children who were born between June 1, 2010 and April 30, 2011 and were under 10 months of age or not born yet when the disaster occurred. We collected their health examination data from local governments in Iwate, Miyagi, and Fukushima Prefectures. We also collected data from Aomori, Akita, and Yamagata Prefectures to use as a control group. The survey items included birth information, anthropometric measurements, and methods of nutrition during infancy. Eighty municipalities from Iwate, Miyagi, and Fukushima Prefectures and 21 from the control prefectures participated in the survey. As a result, we established three retrospective cohorts consisting of 13,886, 15,474, and 32,202 preschool children. The large datasets acquired for the present survey will provide valuable epidemiological evidence that should shed light on preschool children's physical growth in relation to the disaster. Copyright © 2016 The Authors. Production and hosting by Elsevier B.V. All rights reserved.

  17. Subsurface geology by shallow seismic reflection survey and microgravity survey in Kobe area; Senso hanshaho danseiha tansa oyobi seimitsu juryoku tansa ni yoru Kobe chiiki no chika chishitsu

    Energy Technology Data Exchange (ETDEWEB)

    Endo, H.; Makino, M.; Murata, Y.; Watanabe, S. [Geological Survey of Japan, Tsukuba (Japan)

    1996-05-01

    This paper reports discussions on subsurface structure of the Kobe area by means of microgravity survey. A Bouguer anomaly distribution graph was obtained (which is close to a near straight line) by measuring the gravity at measurement points with an interval of about 25 m along a traverse line (with a total length of about 1.7 km) in an approximately NNW-SSE direction crossing the downtown of the city of Kobe. Viewing the residuals to a straight line linking the values at both ends of the traverse line revealed that the gradient in the Bouguer anomaly distribution changes as if it is bent at a point near the center of the traverse line as a boundary. Deriving the residuals from fine changes seen in a distribution graph for the residuals made clear that this residual distribution has two discontinuous points. The paper indicates that the bending point in the former case corresponds to a reverse fault in a base bed of a flat land as compared with the result of model calculation on the base structure and gravity distribution. The discontinuous points in the latter case agree with positions of fault distribution derived by a reflection elastic wave survey. 6 refs., 4 figs.

  18. A Cultural Resources Survey of the Whitlow Ranch Dam and Reservoir Area, Eastern Pinal County, Arizona,

    Science.gov (United States)

    1986-01-01

    actually common in areas on the periphery of the Hohokam world; they occur in the Altar drainage of northern Mexico and the Papagueria (Stacey 1974...The excavation of Los Muertos and neighboring ruins in the Salt River Valley, Southern Arizona. Papers of the Peabody Museum of American Archaeology

  19. [Survey of methods of cleaning, decontamination, disinfection and sterilization in dental health services in tropical areas].

    Science.gov (United States)

    Clapeau, G; Decroix, B; Bakayoko-Ly, R; Varenne, B; Dosso-Hien, D; Decroix, M O

    1997-01-01

    The International Aid for Ontology (IAO) carried out this survey of hygiene in the dental health services of 5 French-speaking African countries in 1994, in association with the Faculty of Pharmaceutical and Biological Sciences of Paris. This study received support from the World Health Organization (WHO), the French Ministry for Cooperation and the European Community and the Ivory Coast Oral and Dental Hygiene and Health Committee (CIHSBD). Twenty-nine dental services from Benin (3), Burkina Faso (6), Ivory Coast (12), Mali (5), Niger (3) participated in this survey which gives an insight into the daily hygiene routines of these services. The cleaning, decontamination, disinfection and sterilization procedures for premises, dental equipment, instruments, hands and disposable items were investigated. No individual protocols are reported. Bench tops were cleaned or disinfected daily in 73% of centers and floors were cleaned or disinfected daily in 59% of centers. Walls were cleaned once per week in 44% of the centers. Hands were always washed between patients, with 68% of dental surgeons using only solid or liquid cleansing soaps and the others using antiseptic or disinfectant solutions. The dentist's chair was cleaned or disinfected daily in 68% of centers, mostly with soap (43%) or diluted bleach (23%). Vacuum equipment was cleaned with soap (50%) or diluted bleach (57%), with some surgeries using a combination of the two. Hand pieces and turbines were cleaned and disinfected after each use with alcohol (35%) or diluted bleach (26%) and were sterilized in 9% of centers. Instruments were sterilized with a Poupinel (63%), unspecified sterilizer (26%), autoclave (7%) or low temperature disinfection procedure (4%). Instruments were regularly sterilized in all centers. Single-use disposable items were often reused: 88% of centers reused gloves, 64% anesthetic cartridges and 32% disposable needles. This survey demonstrates that dentists do attempt to achieve appropriate

  20. Parallel MOPEX: Computing Mosaics of Large-Area Spitzer Surveys on a Cluster Computer

    Directory of Open Access Journals (Sweden)

    Joseph C. Jacob

    2007-01-01

    Full Text Available The Spitzer Science Center's MOPEX software is a part of the Spitzer Space Telescope's operational pipeline that enables detection of cosmic ray collisions with the detector array, masking of the corrupted pixels due to these collisions, subsequent mosaicking of image fields, and extraction of point sources to create catalogs of celestial objects. This paper reports on our experiences in parallelizing the parts of MOPEX related to cosmic ray rejection and mosaicking on a 1,024-processor cluster computer at NASA's Jet Propulsion Laboratory. The architecture and performance of the new Parallel MOPEX software are described. This work was done in order to rapidly mosaic the IRAC shallow survey data, covering a region of the sky observed with one of Spitzer's infrared instruments for the study of galaxy clusters, large-scale structure, and brown dwarfs.

  1. Molecular survey of Babesia infections in cattle from different areas of Myanmar.

    Science.gov (United States)

    Bawm, Saw; Htun, Lat Lat; Maw, Ni Ni; Ngwe, Tin; Tosa, Yusuke; Kon, Tomoyuki; Kaneko, Chiho; Nakao, Ryo; Sakurai, Tatsuya; Kato, Hirotomo; Katakura, Ken

    2016-02-01

    Cattle babesiosis is one of the most important tick-borne diseases worldwide. The present study reports a molecular survey of Babesia infections in cattle in Myanmar. Nested PCR assays based on the Babesia bigemina apical membrane antigen-1 gene (AMA-1) and B. bovis rhoptry associated protein-1 gene (RAP-1) revealed that the overall percentage of B. bigemina and B. bovis infection were 9.8% (70/713) and 17.1% (122/713), respectively. A mixed infection was detected in 4.6% (33/713) of animals. Animals Myanmar, providing useful information for the management and control of the disease. Copyright © 2015 Elsevier GmbH. All rights reserved.

  2. Survey of main challenges (security and privacy in wireless body area networks for healthcare applications

    Directory of Open Access Journals (Sweden)

    Samaher Al-Janabi

    2017-07-01

    Full Text Available Wireless Body Area Network (WBAN is a new trend in the technology that provides remote mechanism to monitor and collect patient’s health record data using wearable sensors. It is widely recognized that a high level of system security and privacy play a key role in protecting these data when being used by the healthcare professionals and during storage to ensure that patient’s records are kept safe from intruder’s danger. It is therefore of great interest to discuss security and privacy issues in WBANs. In this paper, we reviewed WBAN communication architecture, security and privacy requirements and security threats and the primary challenges in WBANs to these systems based on the latest standards and publications. This paper also covers the state-of-art security measures and research in WBAN. Finally, open areas for future research and enhancements are explored.

  3. Phase I Historic Resources Survey Lowndes Wildlife Management Area Lowndes County, Alabama.

    Science.gov (United States)

    1998-01-01

    represents a large stable village whose population practiced maize horticulture, supplemented their diet through seasonal gathering, and hunting with...by the emergence of shell-tempered ceramics, large ceremonial complexes, intensive use of agriculture (particularly maize and squash), and large...Wildlife Management Area 91 room. However, the front porch has collapsed and the metal roofing is peeling away, exposing the frame and interior to

  4. Remote Sensing Survey of Mississippi River-Gulf Outlet, Breton Sound Disposal Area, Plaquemines Parish, Louisiana

    Science.gov (United States)

    1993-02-01

    was certainly a commonplace event for many coastal sailers and steamers on their way to and from New Orleans and other ports in the Gulf. Small...several days to avoid the appearance of falsely anomalous areas resulting from diurnal changes in the magnetic field, solar activity, or other natural...following it, it is possible to smooth the data and minimize the effects of solar flares and diurnal shifts. This method tends to mask anomalies of

  5. A survey of Japanese quail (Coturnix coturnix japonica) farming in selected areas of Bangladesh

    OpenAIRE

    Abu Nasar Md. Aminoor Rahman; Md. Nazmul Hoque; Anup Kumar Talukder; Ziban Chandra Das

    2016-01-01

    Aim: To investigate the status, problems and prospects of Japanese quail (Coturnix coturnix japonica) farming in selected areas of Bangladesh. Materials and Methods: The study was conducted in 14 districts of Bangladesh, viz., Dhaka, Narayanganj, Munshiganj, Mymensingh, Netrakona, Faridpur, Jessore, Khulna, Satkhira, Kushtia, Bogra, Naogaon, Comilla, and Sylhet during the period from July 2011 to June 2012. A total of 52 quail farmers were interviewed for data collection using a structured...

  6. The Archaeology of Coralville Lake, Iowa. Volume 4. Recreation Area Survey. (Interim Report 2).

    Science.gov (United States)

    1985-09-01

    at least one buried soil evidenced by a buried - argillic (clay enriched) horizon. This landform has been for the most part destroyed by previous...subsurface investigations showed an eluvial horizon with an underlying argillic Bt horizon. At this time, no evidence supports the existence of a buried...subsurface argillic horizon. The potential for recovering buried stable surfaces at this recreation area appears remote. LAKE MacBRIDE STATE PARK

  7. GLAST LARGE AREA TELESCOPE: DAILY SURVEY OF HIGH-ENERGY SKY

    Energy Technology Data Exchange (ETDEWEB)

    Kamae, T

    2003-12-12

    GLAST Large Area Telescope was proposed to NASA in 1999 as follow-up of EGRET on-board Compton Gamma-Ray Observatory by an international collaboration. The proposal has been approved as a part of the GLAST observatory mission in its capability to explore w die range of astrophysics with 5-40 times higher sensitivity and extended energy coverage (20 MeV to 300 GeV) than EGRET. The instrument consists of 16 towers of e{sup +}e{sup -} pair tracker, 16 blocks of segmented electro-magnetic calorimeter, and a st of anti-coincidence plastic scintillator tiles covering the tracker towers. It will have 5-10 times larger on-axis effective area, 6 times wider field-of-view (FOV), and up to 5 times better angular resolution when compared with EGRET. The Large Area Telescope will cover about 40% of the sky above the Earth's horizon in its FOV at any given time and will scan nearly the entire Universe every orbit ({approx} 90min): about 20% of Gamma-Ray Bursts will be observed from the onset of the bursts to the initial after-glow phase; all longer-lasting transients and variabilities will be detected daily at the improved sensitivity.

  8. Determinants of Willingness to Pay for an Urban Green Area: A Contingent Valuation Survey of College Students

    Directory of Open Access Journals (Sweden)

    Maria Bonaventura Forleo

    2015-06-01

    Full Text Available The aim of the study is to identify factors affecting young people’s willingness to pay (WTP for the conservation of an urban green area. A questionnaire survey, based on the Contingent Valuation method, was administered to a sample of students enrolled at the University of Molise (Italy. We examine the determinants of WTP for use and non-use values, visitors’ profiles, socioeconomic characteristics and environmental attitudes. We detect factors affecting WTP decisions through logistic regression analysis. Variables affecting the WTP differ from the environmental values and according to the visiting experience; socio-economic characteristics do not appear particularly significant; the main cause for zero bids is related to the perception of the green area as a public good. Our results highlight a growing tendency, in young generations, towards a more sustainable awareness, which we believe should be carefully nurtured through adequate policy instruments, so to enhance the quality of urban life.

  9. Survey of the Hypertention Suffered by the Middle-aged from Suburban Areas and Its Related Pathogenesis

    Institute of Scientific and Technical Information of China (English)

    Weiyang Li; Fen Jiang; Yanping Wang

    2007-01-01

    To investigate the related pathogenic factors of hypertension affecting the middle-aged in suburban areas in Mudanjiang City and further popularize health education with regard to hypertension.Methods A survey was conducted on 858 middle-aged people of 35 to 59 years old from such suburban areas as Jinglong village,Bada village and Fengshou village by adopting the hypertensive definition and classifying standard of an WHO/ISH hypertensive treatment guidance in 1999.Results Positive correlation was shown between occurrence of hypertension and such elements as diet in excess salt,drinking,obesity,smoking.Conclusions It is of great clinical significance to combat and prevent the hypertension by regulating one's diet and life style.

  10. A comprehensive survey of energy-aware routing protocols in wireless body area sensor networks.

    Science.gov (United States)

    Effatparvar, Mehdi; Dehghan, Mehdi; Rahmani, Amir Masoud

    2016-09-01

    Wireless body area sensor network is a special purpose wireless sensor network that, employing wireless sensor nodes in, on, or around the human body, makes it possible to measure biological parameters of a person for specific applications. One of the most fundamental concerns in wireless body sensor networks is accurate routing in order to send data promptly and properly, and therefore overcome some of the challenges. Routing protocols for such networks are affected by a large number of factors including energy, topology, temperature, posture, the radio range of sensors, and appropriate quality of service in sensor nodes. Since energy is highly important in wireless body area sensor networks, and increasing the network lifetime results in benefiting greatly from sensor capabilities, improving routing performance with reduced energy consumption presents a major challenge. This paper aims to study wireless body area sensor networks and the related routing methods. It also presents a thorough, comprehensive review of routing methods in wireless body area sensor networks from the perspective of energy. Furthermore, different routing methods affecting the parameter of energy will be classified and compared according to their advantages and disadvantages. In this paper, fundamental concepts of wireless body area sensor networks are provided, and then the advantages and disadvantages of these networks are investigated. Since one of the most fundamental issues in wireless body sensor networks is to perform routing so as to transmit data precisely and promptly, we discuss the same issue. As a result, we propose a classification of the available relevant literature with respect to the key challenge of energy in the routing process. With this end in view, all important papers published between 2000 and 2015 are classified under eight categories including 'Mobility-Aware', 'Thermal-Aware', 'Restriction of Location and Number of Relays', 'Link-aware', 'Cluster- and Tree

  11. Environmental and production survey methodology to estimate severity and extent of aquaculture impact in three areas of the Philippines

    Directory of Open Access Journals (Sweden)

    Rune Palerud

    2008-12-01

    Full Text Available The project “Environmental Monitoring and Modelling of Aquaculture in the Philippines” known as EMMA, was undertaken by the National Integrated Fisheries Technology Development Centre (NIFTDC of the Bureau of Fisheries and Aquatic Resources (BFAR and Akvaplan-niva AS of Tromsø, Norway. The project was funded by the Norwegian Agency for Development Cooperation (NORAD. This project tested survey equipment for the monitoring of aquaculture impact to the water column and sediment. Baseline surveys were undertaken as the goal of the study was to develop suitable aquaculture monitoring techniques and adapt predictive models to assist in identifying risk areas for aquaculture and allow planned development of sustainable aquaculture. Three different locations were chosen as case studies - Bolinao, Pangasinan (marine site, Dagupan (brackish water site, and Taal Lake (freshwater site. Production surveys were also undertaken to estimate production and nutrient outputs to the water bodies in order to be able to link aquaculture production with severity and extent of impacts. Different methodologies for the estimation of production were tested to find a cost effective and accurate methodology.

  12. INDEPENDENT VERIFICATION SURVEY OF THE SPRU LOWER LEVEL HILLSIDE AREA AT THE KNOLLS ATOMIC POWER LABORATORY NISKAYUNA, NEW YORK

    Energy Technology Data Exchange (ETDEWEB)

    Harpenau, Evan M.; Weaver, Phyllis C.

    2012-06-06

    During August 10, 2011 through August 19, 2011, and October 23, 2011 through November 4, 2011, ORAU/ORISE conducted verification survey activities at the Separations Process Research Unit (SPRU) site that included in-process inspections, surface scans, and soil sampling of the Lower Level Hillside Area. According to the Type-B Investigation Report, Sr-90 was the primary contributor to the majority of the activity (60 times greater than the Cs-137 activity). The evaluation of the scan data and sample results obtained during verification activities determined that the primary radionuclide of concern, Sr-90, was well below the agreed upon soil cleanup objective (SCO) of 30 pCi/g for the site. However, the concentration of Cs-137 in the four judgmental samples collected in final status survey (FSS) Units A and B was greater than the SCO. Both ORAU and aRc surveys identified higher Cs-137 concentrations in FSS Units A and B; the greatest concentrations were indentified in FSS Unit A.

  13. Depth to top of the Minnekahta Limestone

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set is a polygon coverage created in ARC/INFO that represents the depth to the top of the Minnekahta Limestone below the land surface, Black Hills, South...

  14. Depth to top of the Madison Limestone

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set is a polygon coverage created in ARC/INFO that represents the depth to the top of the Madison Limestone below the land surface, Black Hills, South...

  15. Environmental magneto-gradiometric marine survey in a highly anthropic noisy area

    Directory of Open Access Journals (Sweden)

    Luca Cocchi

    2009-06-01

    Full Text Available

    We describe a magneto-gradiometric survey performed in the «Mar Piccolo» of Taranto, Italy in May 2005 for

    environmental purposes. This region, which is a noisy harbour environment, provides a challenging test for magnetic methods. To reduce spurious noise signals, with both temporal and spatial origins, we used two Geometrics G880 model caesium magnetometers towed in a transverse gradient configuration. We show how, in shallow waters, this gradiometric configuration allows us to distinguish anomalies due to small metallic bodies near the seabed from the induced noise due to the anthropic contribution and geomagnetic field variations. A direct visual inspection confirmed that the peculiarities highlighted in the gradient anomaly map were due to abandoned metallic objects found on the seabed.


  16. The IAC Stripe 82 Legacy Project: a wide-area survey for faint surface brightness astronomy

    CERN Document Server

    Fliri, Juergen

    2016-01-01

    We present new deep co-adds of data taken within Stripe 82 of the Sloan Digital Sky Survey (SDSS), especially stacked to reach the faintest surface brightness limits of this data set. Stripe 82 covers 275 square degrees within -50 ~ 25.5 mag/arcsec^2. For point sources, we reach 50% completeness limits (3 sigma level) of (24.2,25.2,24.7,24.3,23.0) mag in (u,g,r,i,z). This is between 1.7 and 2.0 mag deeper than the single epoch SDSS releases. The co-adds show point spread functions with median FWHM values ranging between 1 arcsec in i and z to 1.3 arcsec in the u band. The imaging data are made publicly available at http://www.iac.es/proyecto/stripe82. The release includes deep co-adds and representations of the PSF for each field. Additionally, we provide object catalogues with stars and galaxies confidently separated until g~23 mag. The IAC Stripe 82 coadds offer a rather unique possibility to study the low surface brightness universe, exemplified by the discovery of stellar streams around NGC0426 and NGC09...

  17. CALIFA, the Calar Alto Legacy Integral Field Area survey: II. First public data release

    CERN Document Server

    Husemann, B; Sánchez, S F; Barrado-Navascues, D; Bekeraitė, S; Bomans, D J; Castillo-Morales, A; Catalán-Torrecilla, C; Fernandes, R Cid; Falcón-Barroso, J; García-Benito, R; Delgado, R M González; Iglesias-Páramo, J; Johnson, B D; Kupko, D; López-Fernandez, R; Lyubenova, M; Marino, R A; Mast, D; Miskolczi, A; Monreal-Ibero, A; de Paz, A Gil; Pérez, E; Pérez, I; Rosales-Ortega, F F; Ruiz-Lara, T; Schilling, U; van de Ven, G; Walcher, J; Alves, J; de Amorim, A L; Backsmann, N; Barrera-Ballesteros, J K; Bland-Hawthorn, J; Dettmar, R -J; Demleitner, M; Díaz, A I; Enke, H; Florido, E; Flores, H; Galbany, L; Gallazzi, A; García-Lorenzo, B; Gomes, J M; Gruel, N; Haines, T; Holmes, L; Jungwiert, B; Kalinova, V; Kehrig, C; Kennicutt, R C; Klar, J; Lehnert, M D; Lóez-Sáchez, Á R; de Lorenzo-Cáceres, A; Mármol-Queraltó, E; Márquez, I; Mendez-Abreu, J; Mollá, M; del Olmo, A; Meidt, S E; Papaderos, P; Puschnig, J; Quirrenbach, A; Roth, M M; Sánchez-Blázquez, P; Spekkens, K; Singh, R; Stanishev, V; Trager, S C; Vilchez, J M; Wild, V; Wisotzki, L; Zibetti, S; Ziegler, B

    2012-01-01

    We present the first public data release of the CALIFA survey. It consists of science-grade optical datacubes for the first 100 of eventually 600 nearby (0.005

  18. Rapid heat-flowing surveying of geothermal areas, utilizing individual snowfalls as calorimeters

    Science.gov (United States)

    White, Donald E.

    1969-01-01

    Local differences in rate of heat transfer in vapor and by conduction through the ground in hot spring areas are difficult and time-consuming to measure quantitatively. Individual heavy snowfalls provide a rapid low-cost means of measuring total heat flow from such ground. After a favorable snowfall (heavy, brief duration, little wind, air temperature near 0°C), contacts between snow-covered and snow-free ground are mapped on a suitable base. Each mapped contact, as time elapses after a specific snowfall, is a heat-flow contour representing a decreasing rate of flow. Calibration of each mapped contact or snow line is made possible by the fact that snow remains on insulated surfaces (such as the boardwalks of Yellowstone's thermal areas) long after it has melted on adjacent warm ground. Heat-flow contours mapped to date range from 450 to 5500 μcal/cm2 sec, or 300 to 3700 times the world average of conductive heat flow. The very high rates of heat flow (2000 to > 10,000 μcal/cm2 sec) are probably too high, and the lower heat flows determinable by the method (2 sec) may be too low. Values indicated by the method are, however, probably within a factor of 2 of the total conductive and convective heat flow. Thermal anomalies from infrared imagery are similar in shape to heat-flow contours of a test area near Old Faithful geyser. Snowfall calorimetry provides a rapid means for evaluating the imagery and computer-derived products of the infrared data in terms of heat flow.

  19. Classification of basic facilities for high-rise residential: A survey from 100 housing scheme in Kajang area

    Science.gov (United States)

    Ani, Adi Irfan Che; Sairi, Ahmad; Tawil, Norngainy Mohd; Wahab, Siti Rashidah Hanum Abd; Razak, Muhd Zulhanif Abd

    2016-08-01

    High demand for housing and limited land in town area has increasing the provision of high-rise residential scheme. This type of housing has different owners but share the same land lot and common facilities. Thus, maintenance works of the buildings and common facilities must be well organized. The purpose of this paper is to identify and classify basic facilities for high-rise residential building hoping to improve the management of the scheme. The method adopted is a survey on 100 high-rise residential schemes that ranged from affordable housing to high cost housing by using a snowball sampling. The scope of this research is within Kajang area, which is rapidly developed with high-rise housing. The objective of the survey is to list out all facilities in every sample of the schemes. The result confirmed that pre-determined 11 classifications hold true and can provide the realistic classification for high-rise residential scheme. This paper proposed for redefinition of facilities provided to create a better management system and give a clear definition on the type of high-rise residential based on its facilities.

  20. Surveys of potato-growing areas and surface water in Lebanon for potato brown and ring rot pathogens

    Directory of Open Access Journals (Sweden)

    Elia CHOUEIRI

    2017-05-01

    Full Text Available Field surveys were carried out over three growing seasons (2013–2015, in the main potato growing areas of Lebanon, to assess the occurrence of potato brown rot caused by Ralstonia solanacearum and potato ring rot caused by Clavibacter michiganensis subsp. sepedonicus. A total of 232 potato samples were collected from Bekaa valley and 145 samples from Akkar plain, which are the largest Lebanese areas cropped with potatoes. Composite samples of 200 potato tubers were randomly collected from each field, following procedures laid down in EU legislation. Twelve potato demonstration fields were established in Akkar plain and designed for potato export to European markets: these were also surveyed using the same strategy. Furthermore, a network of 40 sampling sites in Bekaa and 19 sites in Akkar was established to collect surface water. GPS coordinates of potato fields and water sampling sites were recorded to map specific sampling points using Geographic Information System. All samples gave negative results for R. solanacearum and C. michiganensis subsp. sepedonicus in potatoes and R. solanacearum in water, as indicated using the official EU methods for detection and diagnosis for these pathogens. A monitoring system for R. solanacearum and C. michiganensis subsp. michiganensis has been set up in Lebanon. This will increase the phytosanitary quality of potatoes and provide access to broader international markets.