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Sample records for watershed nez perce

  1. Nez Perce Tribal Hatchery Program : Draft Environmental Impact Statement Summary.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration; Nez Perce Tribal Hatchery (Idaho)

    1996-06-01

    This summary gives the major points of the Draft Environmental Impact Statement (EIS) prepared for the Nez Perce Tribal Hatchery by the Nez Perce Tribe (NPT), the Bonneville Power Administration (BPA), the Bureau of Indian Affairs (BIA), and other interested parties. The Nez Perce once were one of the largest Plateau tribes in the Northwest and occupied a territory that included north central Idaho, southeastern Washington and northeastern Oregon. Salmon and other migratory fish species are an invaluable food resource and an integral part of the Nez Perce Tribe`s culture. Anadromous fish have always made up the bulk of the Nez Perce tribal diet and this dependence on salmon was recognized in the treaties made with the Tribe by the US. The historic economic, social, and religious significance of the fish to the Nez Perce Tribe continues to this day, which makes the decline of fish populations in the Columbia River Basin a substantial detrimental impact to the Nez Perce way of life. The Nez Perce Tribal Hatchery is a supplementation program that would rear and release spring, summer, and fall chinook (Oncorhynchus tshawytscha), biologically similar to wild fish, to reproduce in the Clearwater River Subbasin. Program managers propose techniques that are compatible with existing aquatic and riparian ecosystems and would integrate hatchery-produced salmon into the stream and river environments needed to complete their life cycle.

  2. Monitoring and evaluation plan for the Nez Perce Tribal Hatchery

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    Steward, C.R.

    1996-08-01

    The Nez Perce Tribe has proposed to build and operate the Nez Perce Tribal Hatchery (NPTH) in the Clearwater River subbasin of Idaho for the purpose of restoring self-sustaining populations of spring, summer, and fall chinook salmon to their native habitats. The project comprises a combination of incubation and rearing facilities, satellite rearing facilities, juvenile and adult collection sites, and associated production and harvest management activities. As currently conceived, the NPTH program will produce approximately 768,000 spring chinook parr, 800,000 summer chinook fry, and 2,000,000 fall chinook fry on an annual basis. Hatchery fish would be spawned, reared, and released under conditions that promote wild-type characteristics, minimize genetic changes in both hatchery and wild chinook populations, and minimize undesirable ecological interactions. The primary objective is to enable hatchery-produced fish to return to reproduce naturally in the streams in which they are released. These and other characteristics of the project are described in further detail in the Nez Perce Tribal Hatchery Master Plan, the 1995 Supplement to the Master Plan, and the Nez Perce Tribal Hatchery Program Environmental Impact Statement. The report in hand is referred to in project literature as the NPTH Monitoring and Evaluation (M&E) Plan. This report describes monitoring and evaluation activities that will help NPTH managers determine whether they were successful in restoring chinook salmon populations and avoiding adverse ecological impacts.

  3. Nez Perce Tribal Hatchery Project, 1999 Annual Report.

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    Johnson, David B.; Larson, Roy Edward; Walker, Grant W.

    2001-08-17

    This report consists of activities/events conducted in response to the Objectives and Tasks described in the 1999 contract Statement Of Work for the Planning and Planning and Design (P and D) and Maintenance (O and M) activities of the Nez Perce Tribal Hatchery (NPTH). The report follows the format of the contract for ease in finding accomplishments. Although specific emphasis will be placed on activities related directly to the NPTH, activities from other artificial production related projects might also be noted because of overlap in staff duties and production facilities. Additionally, the project leader's role has evolved as other Tribal fisheries projects have been developed and assigned to the Production Division, Department of Fisheries Resource Management (DFRM), and Nez Perce Tribe (NPT). Thus, implementation of the project leader role for the NPTH actually entails specific duties of the Production Division Director and the Production Division Coordinator, as well as the Hatchery Division Coordinator.

  4. South Fork Clearwater River Habitat Enhancement, Nez Perce National Forest.

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    Siddall, Phoebe

    1992-04-01

    In 1984, the Nez Perce National forest and the Bonneville Power Administration entered into a contractual agreement which provided for improvement of spring chinook salmon and summer steelhead trout habitat in south Fork Clearwater River tributaries. Project work was completed in seven main locations: Crooked River, Red River, Meadow Creek Haysfork Gloryhole, Cal-Idaho Gloryhole, Fisher Placer and Leggett Placer. This report describes restoration activities at each of these sites.

  5. Nez Perce Tribal Hatchery Program : Draft Environmental Impact Statement.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration; Nez Perce Tribal Hatchery (Idaho).

    1996-06-01

    Bonneville Power Administration, the Bureau of Indian Affairs, the Nez Perce Tribe propose a supplementation program to restore chinook salmon to the Clearwater River Subbasin in Idaho. The Clearwater River is a tributary to the Snake River, which empties into the Columbia River. The Nez Perce Tribe would build and operate two central incubation and rearing hatcheries and six satellite facilities. Spring, summer and fall chinook salmon would be reared and acclimated to different areas in the Subbasin and released at the hatchery and satellite sites or in other watercourses throughout the Subbasin. The supplementation program differs from other hatchery programs because the fish would be released at different sizes and would return to reproduce naturally in the areas where they are released. Several environmental issues were identified during scoping: the possibility that the project would fail if mainstem Columbia River juvenile and adult passage problems are not solved; genetic risks to fish listed as endangered or threatened; potential impacts to wild and resident fish stocks because of increase competition for food and space; and water quality. The Proposed Action would affect several important aspects of Nez Perce tribal life, primarily salmon harvest, employment, and fisheries management.

  6. Nez Perce Tribe Energy Efficient Facilities Installation Project

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    Terry Kinder

    2012-11-12

    Although Idaho's electrical rates are among the lowest in the country, the Nez Perce Tribe's electrical bills take a large bite out of the operating budget every year. Tribal programs are located in forty some buildings, in six counties, in two states. Ninety-five percent, or more, are heated electrically. The age of the Tribal office buildings located in Lapwai, Idaho vary from forty to over a hundred years old. Only sporadic updates, in the buildings themselves, have been made over the years. Working with the Tribe's electrical provider (Avista Corporation), it was determine that a minimum financial commitment could reap large rewards in the form of lower operating costs.

  7. Nez Perce Tribal Hatchery Master Plan and Appendices.

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    Larson, Roy Edward; Mobrand, Lars Erik

    1992-03-01

    This report describes the findings that have resulted from the effort to create a proposed Nez Perce Tribal Hatchery (NPTH) in northern Idaho. This effort has been undertaken because of low population densities of salmon in the Clearwater and Salmon River Basins. The Northwest Power Planning Council (Council) has approved the NPTH concept. For the NPTH to proceed, the Council must approve a master plan and amend the Columbia Basin Fish and Wildlife Program (CBFWP). Requirements of the National Environmental Policy Act (NEPA) also must be met. The goals of NPTH are to: (1) develop, increase, and reintroduce natural populations of spring, summer, and fall chinook in the Clearwater and Salmon River Basins; (2) sustain long-term preservation and genetic integrity of target fish populations; (3) keep the ecological and genetic impacts of nontarget fish populations within acceptable limits; and, (4) provide harvest opportunities for both tribal and non-tribal anglers.

  8. Council of Energy Resources Tribes 1993 summer internship report: Nez Perce Tribe

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    Crow, J.S.

    1993-08-01

    This paper is designed to be a working part of a larger project which would deal with the topic of Tribal interests affected by the DOE Environmental Restoration and Waste Management program and the approaches by which those Tribal interests can be advanced. Topics discussed in this paper include: background history of the Nez Perce Tribe`s relations with the US government; a Nez Perce view of tribal interests affected by DOE activities at Hanford; and a Nez Perce framework for private/governmental/tribal interest.

  9. Nez Perce Tribal Hatchery Complex; Operations and Maintenance and 2005 Annual Operation Plan, 2004 Annual Report.

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    Harty, Harold R.; Lundberg, Jeffrey H.; Penney, Aaron K. (Nez Perce Tribe, Lapwai, ID)

    2005-02-01

    The Nez Perce Tribal Hatchery (NPTH) responds directly to a need to mitigate for naturally-reproducing salmon in the Clearwater River subbasin. The overall goal is to produce and release fish that will survive to adulthood, spawn in the Clearwater River subbasin and produce viable offspring that will support future natural production and genetic integrity. Several underlying purposes of fisheries management will be maintained through this program: (1) Protect, mitigate, and enhance Columbia River subbasin anadromous fish resources. (2) Develop, reintroduce, and increase natural spawning populations of salmon within the Clearwater River subbasin. (3) Provide long-term harvest opportunities for Tribal and non-Tribal anglers within Nez Perce Treaty lands within four generations (20 years) following project completion. (4) Sustain long-term fitness and genetic integrity of targeted fish populations. (5) Keep ecological and genetic impacts to non-target populations within acceptable limits. (6) Promote Nez Perce Tribal Management of Nez Perce Tribal hatchery Facilities and production areas within Nez Perce Treaty lands. Nez Perce Tribal Hatchery is a supplementation program that will rear and release spring, fall, and early-fall stocks of chinook salmon. Two life stages of spring chinook salmon will be released: parr and presmolts. Fall and early-fall chinook salmon will be released as subyearling smolts. The intent of NPTHC is to use conventional hatchery and Natural Rearing Enhancement Systems (NATURES) techniques to develop, increase and restore natural populations of spring and fall chinook salmon in the Clearwater River subbasin.

  10. Nez Perce Tribal Hatchery Complex; Operations and Maintenance and 2004 Annual Operation Plan, 2003 Annual Report.

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    Harty, Harold R.; Penney, Aaron K.; Larson, Roy Edward (Nez Perce Tribe, Lapwai, ID)

    2005-12-01

    The Nez Perce Tribal Hatchery (NPTH) responds directly to a need to mitigate for naturally-reproducing salmon in the Clearwater River subbasin. The overall goal is to produce and release fish that will survive to adulthood, spawn in the Clearwater River subbasin and produce viable offspring that will support future natural production and genetic integrity. Several underlying purposes of fisheries management will be maintained through this program: (1) Protect, mitigate, and enhance Columbia River subbasin anadromous fish resources. (2) Develop, reintroduce, and increase natural spawning populations of salmon within the Clearwater River subbasin. (3) Provide long-term harvest opportunities for Tribal and non-Tribal anglers within Nez Perce Treaty lands within four generations (20 years) following project completion. (4) Sustain long-term fitness and genetic integrity of targeted fish populations. (5) Keep ecological and genetic impacts to non-target populations within acceptable limits. (6) Promote Nez Perce Tribal Management of Nez Perce Tribal hatchery Facilities and production areas within Nez Perce Treaty lands. Nez Perce Tribal Hatchery is a supplementation program that will rear and release spring, fall, and early-fall stocks of chinook salmon. Two life stages of spring chinook salmon will be released: parr and presmolts. Fall and early-fall chinook salmon will be released as subyearling smolts. The intent of NPTHC is to use conventional hatchery and Natural Rearing Enhancement Systems (NATURES) techniques to develop, increase and restore natural populations of spring and fall chinook salmon in the Clearwater River subbasin.

  11. Monitoring and Evaluation Plan for the Nez Perce Tribal Hatchery, 1996 Technical Report.

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    Steward, Cleveland R.

    1996-08-01

    The Nez Perce Tribe has proposed to build and operate the Nez Perce Tribal Hatchery (NPTH) in the Clearwater River subbasin of Idaho for the purpose of restoring self-sustaining populations of spring, summer, and fall chinook salmon to their native habitats. The project comprises a combination of incubation and rearing facilities, satellite rearing facilities, juvenile and adult collection sites, and associated production and harvest management activities. As currently conceived, the NPTH program will produce approximately 768,000 spring chinook parr, 800,000 summer chinook fry, and 2,000,000 fall chinook fry on an annual basis. Hatchery fish would be spawned, reared, and released under conditions that promote wild-type characteristics, minimize genetic changes in both hatchery and wild chinook populations, and minimize undesirable ecological interactions. The primary objective is to enable hatchery-produced fish to return to reproduce naturally in the streams in which they are released. These and other characteristics of the project are described in further detail in the Nez Perce Tribal Hatchery Master Plan (Larson and Mobrand 1992), the 1995 Supplement to the Master Plan (Johnson et al. 1995), and the Nez Perce Tribal Hatchery Program Environmental Impact Statement (Bonneville Power Administration et al. 1996). The report in hand is referred to in project literature as the NPTH Monitoring and Evaluation (M&E) Plan. This report describes monitoring and evaluation activities that will help NPTH managers determine. whether they were successful in restoring chinook salmon populations and avoiding adverse ecological impacts. Program success will be gauged primarily by changes in the abundance and distribution of supplemented chinook populations. The evaluation of project-related impacts will focus on the biological effects of constructing and operating NPTH hatchery facilities, introducing hatchery fish into the natural environment, and removing or displacing wild

  12. Nez Perce Tribal Hatchery Project : Combined-Planning & Design and Operations & Maintenance Reports, 2000 Annual Report.

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    Larson, Roy Edward; Walker, Grant W.

    2002-12-31

    Nez Perce Tribal Hatchery (NPTH) Year-2000 Combined Maintenance and Operations (O&M) and Planning and Design (P&D) contract is hereby completed based on this annual report patterned after the Statement of Work (SOW) for the project as contracted with Bonneville Power Administration. Primary project activities focused on completion of the Northwest Power Planning Council Step-3 process that: (1) Accepted final design, (2) Authorized a capital construction amount of $16,050,000, and (3) Authorized contractor selection, and (4) Provided construction site dedication, and (5) Implemented construction activities over an anticipated 2-year period of July 2000 through October 2002.

  13. Indian Wars: Failings of the United States Army to Achieve Decisive Victory During the NEZ Perce War of 1877

    Science.gov (United States)

    2005-06-17

    Nez Perce trail where the horses had milled. When Howard arrived at the pass, his men waved their flags furiously toward Heart Mountain, hoping to...their tribal land in Oregon, but they were not at all happy about leaving. Though unhappy with the directive to vacate their land in only one month

  14. Nez Perce Tribal Hatchery Project; Operations and Maintenance and Planning and Design, 2002 Annual Report.

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    Larson, Roy Edward; Walker, Grant W.; Penney, Aaron K. (Nez Perce Tribe, Lapwai, ID)

    2005-12-01

    This report fulfills the contract obligations based on the Statement of Work (SOW) for the project as contracted with Bonneville Power Administration (BPA). Nez Perce Tribal Hatchery (NPTH) Year-2002 annual report combines information from two contracts with a combined value of $3,036,014. Bonneville Power Administration identifies them as follows; (1) Part I--Operations and Maintenance--Project No. 1983-350-00, Contract No. 4504, and $2,682,635 which includes--Equipment costs of $1,807,105. (2) Part II--Planning and Design--Project No. 1983-35-04, Contract No. 4035, $352,379 for Clearwater Coho Restoration Master Plan development Based on NPPC authorization for construction and operation of NPTH, the annual contracts were negotiated for the amounts shown above under (1) and (2). Construction contracts were handled by BPA until all facilities are completed and accepted.

  15. The Nez Perce Flight to Canada: An Analysis of the Nez Perce-US Cavalry Conflicts: Applying Historical Lessons Learned to Modern Counterinsurgency and Global War on Terrorism Operations

    Science.gov (United States)

    2006-06-16

    provided a great logistical advantage. Their care required minimal effort, and the Nez Perce horses simply ate grass and other plants from the...advantage of, and were professionals at, acquiring salmon and other fish, mountain goats and sheep, bear, moose, elk, deer, small game, and birds...constant diet . “Today some beef cattle arrived to serve as food for us all, poor things.”12 When the US Cavalry would set up a base camp from which they

  16. Nez Perce Tribal Hatchery Project, Operations and Maintenance and Planning and Design, 2001 Annual Report.

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    Larson, Roy Edward; Walker, Grant W.; Penney, Aaron K. (Nez Perce Tribe, Lapwai, ID)

    2006-03-01

    This report fulfills the contract obligations based on the Statement of Work (SOW) for the project as contracted with Bonneville Power Administration (BPA). Nez Perce Tribal Hatchery (NPTH) Year-2001 annual report combines information from two contracts with a combined value of $2,336,491. They are identified by Bonneville Power Administration as follows: (1) Operations and Maintenance--Project No. 1983-350-00, Contract No. 4504, and (2) Planning and Design--Project No. 1983-350-00, Contract No. 4035. The Operations and Maintenance (O&M) budget of $2,166,110 was divided as follows: Facility Development and Fish Production Costs--$860,463; and Equipment Purchases as capital cost--$1,305,647 for equipment and subcontracts. The Planning and Design (P&D) budget of $170,381 was allocated to development of a Coho master planning document in conjunction with Nez Perce Tribal Hatchery. The O&M budget expenditures represent personnel and fish production expenses; e.g., administration, management, coordination, facility development, personnel training and fish production costs for spring Chinook and Coho salmon. Under Objective 1: Fish Culture Training and Education, tribal staff worked at Clearwater Anadromous Hatchery (CAFH) an Idaho Department of Fish and Game (IDFG) facility to produce spring Chinook smolt and parr for release that are intended to provide future broodstock for NPTH. As a training exercise, BPA allowed tribal staff to rear Coho salmon at Dworshak National Fish Hatchery, a U.S. Fish and Wildlife Service (USFWS) facility. This statement of work allows this type of training to prepare tribal staff to later rear salmon at Nez Perce Tribal Hatchery under Task 1.6. As a subset of the O&M budget, the equipment purchase budget of $1,305,647 less $82,080 for subcontracts provides operational and portable equipment necessary for NPTH facilities after construction. The equipment budget for the year was $1,223,567; this year's purchases amounted $287,364.48 (see

  17. Spring Chinook Salmon Oncorhynchus tshawytscha Supplementation in the Clearwater Subbasin ; Nez Perce Tribal Hatchery Monitoring and Evaluation Project, 2007 Annual Report.

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    Backman, Thomas; Sprague, Sherman; Bretz, Justin [Nez Perce Tribe

    2009-06-10

    The Nez Perce Tribal Hatchery (NPTH) program has the following goals (BPA, et al., 1997): (1) Protect, mitigate, and enhance Clearwater Subbasin anadromous fish resources; (2) Develop, reintroduce, and increase natural spawning populations of salmon within the Clearwater Subbasin; (3) Provide long-term harvest opportunities for Tribal and non-Tribal anglers within Nez Perce Treaty lands within four generations (20 years) following project initiation; (4) Sustain long-term fitness and genetic integrity of targeted fish populations; (5) Keep ecological and genetic impacts to non-target populations within acceptable limits; and (6) Promote Nez Perce Tribal management of Nez Perce Tribal Hatchery Facilities and production areas within Nez Perce Treaty lands. The NPTH program was designed to rear and release 1.4 million fall and 625,000 spring Chinook salmon. Construction of the central incubation and rearing facility NPTH and spring Chinook salmon acclimation facilities were completed in 2003 and the first full term NPTH releases occurred in 2004 (Brood Year 03). Monitoring and evaluation plans (Steward, 1996; Hesse and Cramer, 2000) were established to determine whether the Nez Perce Tribal Hatchery program is achieving its stated goals. The monitoring and evaluation action plan identifies the need for annual data collection and annual reporting. In addition, recurring 5-year program reviews will evaluate emerging trends and aid in the determination of the effectiveness of the NPTH program with recommendations to improve the program's implementation. This report covers the Migratory Year (MY) 2007 period of the NPTH Monitoring & Evaluation (M&E) program. There are three NPTH spring Chinook salmon treatment streams: Lolo Creek, Newsome Creek, and Meadow Creek. In 2007, Lolo Creek received 140,284 Brood Year (BY) 2006 acclimated pre-smolts at an average weight of 34.9 grams per fish, Newsome Creek received 77,317 BY 2006 acclimated pre-smolts at an average of 24

  18. Protect and Restore Mill Creek Watershed : Annual Report CY 2005.

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    McRoberts, Heidi

    2006-03-01

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. The Nez Perce Tribe and the Nez Perce National Forest (NPNF) have formed a partnership in completing watershed restoration activities, and through this partnership, more work is accomplished by sharing funding and resources in our effort. The Nez Perce Tribe began watershed restoration projects within the Mill Creek watershed of the South Fork Clearwater River in 2000. Progress has been made in restoring the watershed through excluding cattle from critical riparian areas through fencing. Starting in FY 2002, continuing into 2004, trees were planted in riparian areas in the meadow of the upper watershed. In addition, a complete inventory of culverts at road-stream crossings was completed. Culverts have been prioritized for replacement to accommodate fish passage throughout the watershed, and one high priority culvert was replaced in 2004. Maintenance to the previously built fence was also completed.

  19. Protect and Restore Mill Creek Watershed; Annual Report 2004-2005.

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    McRoberts, Heidi (Nez Perce Tribe, Department of Fisheries Resource Management, Lapwai, ID)

    2005-12-01

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. The Nez Perce Tribe and the Nez Perce National Forest (NPNF) have formed a partnership in completing watershed restoration activities, and through this partnership, more work is accomplished by sharing funding and resources in our effort. The Nez Perce Tribe began watershed restoration projects within the Mill Creek watershed of the South Fork Clearwater River in 2000. Progress has been made in restoring the watershed through excluding cattle from critical riparian areas through fencing. Starting in FY 2002, continuing into 2004, trees were planted in riparian areas in the meadow of the upper watershed. In addition, a complete inventory of culverts at road-stream crossings was completed. Culverts have been prioritized for replacement to accommodate fish passage throughout the watershed, and one high priority culvert was replaced in 2004. Maintenance to the previously built fence was also completed.

  20. Protect and Restore Mill Creek Watershed; Annual Report 2003-2004.

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    McRoberts, Heidi (Nez Perce Tribe, Department of Fisheries Resource Management, Lapwai, ID)

    2004-06-01

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. The Nez Perce Tribe and the Nez Perce National Forest have formed a partnership in completing watershed restoration activities, and through this partnership, more work is accomplished by sharing funding and resources in our effort. The Nez Perce Tribe began watershed restoration projects within the Mill Creek watershed of the South Fork Clearwater River in 2000. Progress has been made in restoring the watershed through excluding cattle from critical riparian areas through fencing. Starting in FY 2002, continuing into 2004, trees were planted in riparian areas in the meadow of the upper watershed. In addition, a complete inventory of culverts at road-stream crossings was completed. Culverts have been prioritized for replacement to accommodate fish passage throughout the watershed, and designs completed on two of the high priority culverts. Maintenance to the previously built fence was also completed.

  1. A synthesis of ethnohistorical materials concerning the administration of Federal Indian policy among the Yakima, Umatilla, and Nez Perce Indian people: Working draft

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    Liebow, E.B.; Younger, C.A.; Broyles, J.A.

    1987-11-01

    For the purposes of the Nuclear Waste Policy Act, the Confederated Tribes and Bands of the Yakima Indian Nation, the Confederated Tribes of the Umatilla Indian Reservation, and the Nez Perce Tribe have been accorded the status of ''Affected Indian Tribe'' and have become party to the proceedings to determine a suitable location for the nation's first commercial waste repository. Each of the Tribes has expressed concerns about the suitability of the Hanford Site in eastern Washington. These concerns, in general, address the proposed repository's effects on traditional spiritual beliefs and cultural practices, on tribal sovereignty and the Tribes' right to self-government, on the natural resources under tribal management jurisdiction, and on the health and socioeconomic characteristics of the Tribes' reservation communities. The Yakima, Umatilla, and Nez Perce have distinctive cultural traditions that may be adversely affected by activities related to the Basalt Waste Isolation Project (BWIP). Further, the Tribes enjoy a unique relationship with the federal government. Because of their distinctive cultures and governmental status, particular attention will be paid to expressed interests of the Tribes, and to ways in which these interests may be affected by the repository program. Monitoring is needed to describe current conditions among the Affected Tribes' populations, to describe BWIP site characterization activities affecting the Tribes, and to measure any changes in these conditions that may occur as a direct result of site characterization. This paper reports our first efforts at gathering historical information. It summarizes materials contained in two sources: the reports of field agents to the Commissioner of Indian Affairs (1854-1936), and the dockets of the Indian Claims Commission. 24 refs., 3 figs.

  2. Protect and Restore Mill Creek Watershed; Annual Report 2002-2003.

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    McRoberts, Heidi (Nez Perce Tribe, Department of Fisheries Resource Management, Lapwai, ID)

    2004-01-01

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. Watershed restoration projects within the Mill Creek watershed are coordinated with the Nez Perce National Forest. The Nez Perce Tribe began watershed restoration projects within the Mill Creek watershed of the South Fork Clearwater River in 2000. Progress has been made in restoring the watershed through excluding cattle from critical riparian areas through fencing. During the FY 2002, trees were planted in riparian areas in the meadow of the upper watershed. In addition, a complete inventory of culverts at road-stream crossings was completed. Culverts have been prioritized for replacement to accommodate fish passage throughout the watershed. Maintenance to the previously built fence was also completed.

  3. White Sturgeon Management Plan in the Snake River between Lower Granite and Hells Canyon Dams; Nez Perce Tribe, 1997-2005 Final Report.

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    Nez Perce Tribe Resources Management Staff, (Nez Perce Tribe, Department of Fisheries Resource Management, Lapwai, ID)

    2005-09-01

    White sturgeon in the Hells Canyon reach (HCR) of the Snake River are of cultural importance to the Nez Perce Tribe. However, subsistence and ceremonial fishing opportunities have been severely limited as a result of low numbers of white sturgeon in the HCR. Hydrosystem development in the Columbia River Basin has depressed numbers and productivity of white sturgeon in the HCR by isolating fish in impounded reaches of the basin, restricting access to optimal rearing habitats, reducing the anadromous forage base, and modifying early life-history habitats. Consequently, a proactive management plan is needed to mitigate for the loss of white sturgeon production in the HCR, and to identify and implement feasible measures that will restore and rebuild the white sturgeon population to a level that sustains viability and can support an annual harvest. This comprehensive and adaptive management plan describes the goals, objectives, strategies, actions, and expected evaluative timeframes for restoring the white sturgeon population in the HCR. The goal of this plan, which is to maintain a viable, persistent population that can support a sustainable fishery, is supported by the following objectives: (1) a natural, stable age structure comprising both juveniles and a broad spectrum of spawning age-classes; (2) stable or increasing numbers of both juveniles and adults; (3) consistent levels of average recruitment to ensure future contribution to reproductive potential; (4) stable genetic diversity comparable to current levels; (5) a minimum level of abundance of 2,500 adults to minimize extinction risk; and (6) provision of an annual sustainable harvest of 5 kg/ha. To achieve management objectives, potential mitigative actions were developed by a Biological Risk Assessment Team (BRAT). Identified strategies and actions included enhancing growth and survival rates by restoring anadromous fish runs and increasing passage opportunities for white sturgeon, reducing mortality rates

  4. Biological and Physical Inventory of the Streams within the Nez Perce Reservation; Juvenile Steelhead Survey and Factors that Affect Abundance in Selected Streams in the Lower Clearwater River Basin, Idaho, 1983-1984 Final Report.

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    Kucera, Paul A.; Johnson, David B. (Nez Perce Tribe, Lapwai, ID)

    1986-08-01

    A biological and physical inventory of selected tributaries in the lower Clearwater River basin was conducted to collect information for the development of alternatives and recommendations for the enhancement of the anadromous fish resources in streams on the Nez Perce Reservation. Five streams within the Reservation were selected for study: Bedrock and Cottonwood Creeks were investigated over a two year period (1983 to 1984) and Big Canyon, Jacks and Mission Creeks were studied for one year (1983). Biological information was collected and analyzed on the density, biomass, production and outmigration of juvenile summer steelhead trout. Physical habitat information was collected on available instream cover, stream discharge, stream velocity, water temperature, bottom substrate, embeddedness and stream width and depth. The report focuses on the relationships between physical stream habitat and juvenile steelhead trout abundance.

  5. Protect and Restore Lolo Creek Watershed : Annual Report CY 2005.

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    McRoberts, Heidi

    2006-03-01

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. Watershed restoration projects within the Lolo Creek watershed are coordinated with the Clearwater National Forest and Potlatch Corporation. The Nez Perce Tribe began watershed restoration projects within the Lolo Creek watershed of the Clearwater River in 1996. Fencing to exclude cattle for stream banks, stream bank stabilization, decommissioning roads, and upgrading culverts are the primary focuses of this effort. The successful completion of the replacement and removal of several passage blocking culverts represent a major improvement to the watershed. These projects, coupled with other recently completed projects and those anticipated in the future, are a significant step in improving habitat conditions in Lolo Creek.

  6. Restore McComas Meadows; Meadow Creek Watershed, 2005-2006 Annual Report.

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    McRoberts, Heidi (Nez Perce Tribe, Department of Fisheries Resource Management, Lapwai, ID)

    2006-07-01

    The Nez Perce Tribe Department of Fisheries Resource Management, Watershed Division approaches watershed restoration with a ridge-top to ridge-top approach. Watershed restoration projects within the Meadow Creek watershed are coordinated and cost shared with the Nez Perce National Forest. The Nez Perce Tribe began watershed restoration projects within the Meadow Creek watershed of the South Fork Clearwater River in 1996. Progress has been made in restoring the watershed by excluding cattle from critical riparian areas through fencing, planting trees in riparian areas within the meadow and its tributaries, prioritizing culverts for replacement to accommodate fish passage, and decommissioning roads to reduce sediment input. During this contract period work was completed on two culvert replacement projects; Doe Creek and a tributary to Meadow Creek. Additionally construction was also completed for the ditch restoration project within McComas Meadows. Monitoring for project effectiveness and trends in watershed conditions was also completed. Road decommissioning monitoring, as well as stream temperature, sediment, and discharge were completed.

  7. Fish Passage Assessment: Big Canyon Creek Watershed, Technical Report 2004.

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    Christian, Richard

    2004-02-01

    This report presents the results of the fish passage assessment as outlined as part of the Protect and Restore the Big Canyon Creek Watershed project as detailed in the CY2003 Statement of Work (SOW). As part of the Northwest Power Planning Council's Columbia Basin Fish and Wildlife Program (FWP), this project is one of Bonneville Power Administration's (BPA) many efforts at off-site mitigation for damage to salmon and steelhead runs, their migration, and wildlife habitat caused by the construction and operation of federal hydroelectric dams on the Columbia River and its tributaries. The proposed restoration activities within the Big Canyon Creek watershed follow the watershed restoration approach mandated by the Fisheries and Watershed Program. Nez Perce Tribal Fisheries/Watershed Program vision focuses on protecting, restoring, and enhancing watersheds and treaty resources within the ceded territory of the Nez Perce Tribe under the Treaty of 1855 with the United States Federal Government. The program uses a holistic approach, which encompasses entire watersheds, ridge top to ridge top, emphasizing all cultural aspects. We strive toward maximizing historic ecosystem productive health, for the restoration of anadromous and resident fish populations. The Nez Perce Tribal Fisheries/Watershed Program (NPTFWP) sponsors the Protect and Restore the Big Canyon Creek Watershed project. The NPTFWP has the authority to allocate funds under the provisions set forth in their contract with BPA. In the state of Idaho vast numbers of relatively small obstructions, such as road culverts, block thousands of miles of habitat suitable for a variety of fish species. To date, most agencies and land managers have not had sufficient, quantifiable data to adequately address these barrier sites. The ultimate objective of this comprehensive inventory and assessment was to identify all barrier crossings within the watershed. The barriers were then prioritized according to the

  8. South Fork Salmon River Watershed Restoration, 2008-2009 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Reaney, Mark D. [Nez Perce Tribe Department of Fisheries Resource Management

    2009-04-15

    The watershed restoration work elements within the project area, the South Fork Salmon River Watershed, follow the watershed restoration approach adopted by the Nez Perce Tribe Department of Fisheries Resource Management (DFRM) - Watershed Division. The vision of the Nez Perce Tribe DFRM-Watershed Division focuses on protecting, restoring, and enhancing watersheds and treaty resources within the ceded territory of the Nez Perce Tribe under the Treaty of 1855 with the United States Federal Government. The program uses a holistic approach, which encompasses entire watersheds, ridge top to ridge top, emphasizing all cultural aspects and strategies that rely on natural fish production and healthy river ecosystems. The Nez Perce Tribe DFRM-Watershed Division strives towards maximizing historic ecosystem productivity and health for the restoration of anadromous and resident fish populations and the habitat on which all depend on for future generations Originally, this project was funded to create a step/pool stream channel that was appropriate to restore fish passage where the 'Glory Hole Cascade' is currently located at the Stibnite Mine. Due to unforeseen circumstances at the time, the project is unable to move forward as planned and a request for a change in scope of the project and an expansion of the geographic area in which to complete project work was submitted. No additional funds were being requested. The ultimate goal of this project is to work with the holistic, ridge top to ridge top approach to protect and restore the ecological and biological functions of the South Fork Salmon River Watershed to assist in the recovery of threatened and endangered anadromous and resident fish species. FY 2008 Work Elements included two aquatic organism passage (AOP) projects to restore habitat connectivity to two fish-bearing tributaries to the East Fork South Fork Salmon River, Salt and Profile Creeks. The Work Elements also included road survey and assessment

  9. Superconducting magnet system for PERC

    Energy Technology Data Exchange (ETDEWEB)

    Drescher, Carmen [Physikalisches Institut, Universitaet Heidelberg (Germany); Collaboration: PERC-Collaboration

    2012-07-01

    The new PERC (Proton Electron Radiation Channel) instrument will be an extremely bright and versatile source of neutron decay products. It will feed several novel precision experiments of spectra and correlation measurements in neutron decay. Its main component is a more than 11 m long superconducting magnet system. The neutron decay volume is located inside an 8 m long neutron guide in a strong longitudinal magnetic field of 1.5 T. A variable magnetic barrier of 3 T to 6 T serves to precisely limit the phase space of the emerging electrons and protons to control systematic errors on the 10{sup -4}level. The instrument is currently under development and will be installed at the neutron-beamline Mephisto at the FRM II, Garching. In this talk we give an overview on the special characteristics and advantages of PERC's field design. We show that with our design we can prevent magnetic traps in magnetic field and achieve a clean separation of neutrons and decay-products.

  10. Neutron Decay with PERC: a Progress Report

    Science.gov (United States)

    Konrad, G.; Abele, H.; Beck, M.; Drescher, C.; Dubbers, D.; Erhart, J.; Fillunger, H.; Gösselsberger, C.; Heil, W.; Horvath, M.; Jericha, E.; Klauser, C.; Klenke, J.; Märkisch, B.; Maix, R. K.; Mest, H.; Nowak, S.; Rebrova, N.; Roick, C.; Sauerzopf, C.; Schmidt, U.; Soldner, T.; Wang, X.; Zimmer, O.; Perc Collaboration

    2012-02-01

    The PERC collaboration will perform high-precision measurements of angular correlations in neutron beta decay at the beam facility MEPHISTO of the Forschungs-Neutronenquelle Heinz Maier-Leibnitz in Munich, Germany. The new beam station PERC, a clean, bright, and versatile source of neutron decay products, is designed to improve the sensitivity of neutron decay studies by one order of magnitude. The charged decay products are collected by a strong longitudinal magnetic field directly from inside a neutron guide. This combination provides the highest phase space density of decay products. A magnetic mirror serves to perform precise cuts in phase space, reducing related systematic errors. The new instrument PERC is under development by an international collaboration. The physics motivation, sensitivity, and applications of PERC as well as the status of the design and preliminary results on uncertainties in proton spectroscopy are presented in this paper.

  11. 77 FR 73976 - Nez Perce-Clearwater National Forests; Idaho; Crooked River Valley Rehabilitation Project

    Science.gov (United States)

    2012-12-12

    ... by dredge mining, leaving behind large tailing piles and deep ponds throughout the valley bottom. Gold and silver mining affected most of the valley bottom along the mainstem of Crooked River. Physical... information about this project is also available by visiting our project Web site:...

  12. 77 FR 775 - Nez Perce-Clearwater National Forests; Idaho; Clear Creek Integrated Restoration Project

    Science.gov (United States)

    2012-01-06

    ... agency #0;statements of organization and functions are examples of documents #0;appearing in this section... restore natural disturbance patterns, improve long term resistance and resilience at the landscape level... resilient to change agents such as insect, disease, and fire. Historical logging practices and fire...

  13. 77 FR 6778 - Nez Perce-Clearwater National Forests; Idaho; Clear Creek Integrated Restoration Project

    Science.gov (United States)

    2012-02-09

    ... restore natural disturbance patterns, improve long term resistance and resilience at the landscape level... resilient to change agents such as insects, disease, and fire. Historical logging practices and fire... organizations and individuals who may be interested in or affected by the proposed action. Comments received in...

  14. 78 FR 24718 - Nez Perce-Clearwater National Forests; Idaho; Lolo Insect & Disease Project

    Science.gov (United States)

    2013-04-26

    ... expected in October 2014. ADDRESSES: Send written or electronic comments to Lois Hill, Interdisciplinary... documents. FOR FURTHER INFORMATION CONTACT: Lois Hill, Interdisciplinary Team Leader, (208) 935-4258... species composition which has become highly susceptible to insect and disease change agents due to...

  15. 78 FR 9029 - Nez Perce-Clearwater National Forests; ID; Clear Creek Integrated Restoration Project

    Science.gov (United States)

    2013-02-07

    ... habitats tend to be more susceptible to insects and diseases. Grand fir is unlikely to survive a wildfire... sensitive and old growth associated species. Historic logging practices and fire suppression have created a... provide materials to local industries. Fire Regime/Natural Disturbance Restoration and Fuel...

  16. 77 FR 9621 - Nez Perce-Clearwater National Forests; Idaho; Clear Creek Integrated Restoration Project

    Science.gov (United States)

    2012-02-17

    ... to be more susceptible to insects and diseases. Grand fir is unlikely to survive a wildfire. There is... old growth associated species. Historic logging practices and fire suppression have created a... provide materials to local industries. Fire Regime/Natural Disturbance Restoration and Fuel...

  17. Couse/Tenmile Creeks Watershed Project Implementation : 2007 Conservtion Projects. [2007 Habitat Projects Completed].

    Energy Technology Data Exchange (ETDEWEB)

    Asotin County Conservation District

    2008-12-10

    The Asotin County Conservation District (ACCD) is the primary entity coordinating habitat projects on private lands within Asotin County watersheds. The Tenmile Creek watershed is a 42 square mile tributary to the Snake River, located between Asotin Creek and the Grande Ronde River. Couse Creek watershed is a 24 square mile tributary to the Snake River, located between Tenmile Creek and the Grande Ronde River. Both watersheds are almost exclusively under private ownership. The Washington Department of Fish and Wildlife has documented wild steelhead and rainbow/redband trout spawning and rearing in Tenmile Creek and Couse Creek. The project also provides Best Management Practice (BMP) implementation throughout Asotin County, but the primary focus is for the Couse and Tenmile Creek watersheds. The ACCD has been working with landowners, Bonneville Power Administration (BPA), Washington State Conservation Commission (WCC), Natural Resource Conservation Service (NRCS), Farm Service Agency (FSA), Salmon Recovery Funding Board (SRFB), Washington Department of Fish and Wildlife (WDFW), U.S. Forest Service, Pomeroy Ranger District (USFS), Nez Perce Tribe (NPT), Washington Department of Ecology (DOE), National Marine Fisheries Service (NOAA Fisheries), and U.S. Fish and Wildlife Service (USFWS) to address habitat projects in Asotin County. The Asotin Subbasin Plan identified priority areas and actions for ESA listed streams within Asotin County. Couse Creek and Tenmile Creek are identified as protection areas in the plan. The Conservation Reserve Enhancement Program (CREP) has been successful in working with landowners to protect riparian areas throughout Asotin County. Funding from BPA and other agencies has also been instrumental in protecting streams throughout Asotin County by utilizing the ridge top to ridge top approach.

  18. Restoring Anadromous Fish Habitat in the Lapwai Creek Watershed, Technical Report 2003-2006.

    Energy Technology Data Exchange (ETDEWEB)

    Rasmussen, Lynn

    2007-02-01

    The Restoring Anadromous Fish Habitat in the Lapwai Creek Watershed is a multi-phase project to enhance steelhead trout in the Lapwai Creek watershed by improving salmonid spawning and rearing habitat. Habitat is limited by extreme high runoff events, low summer flows, high water temperatures, poor instream cover, spawning gravel siltation, and sediment, nutrient and bacteria loading. Funded by the Bonneville Power Administration (BPA) as part of the Northwest Power Planning Council's Fish and Wildlife Program, the project assists in mitigating damage to steelhead runs caused by the Columbia River hydroelectric dams. The project is sponsored by the Nez Perce Soil and Water Conservation District (District). Target fish species include steelhead trout (Oncorhynchus mykiss). Steelhead trout within the Snake River Basin were listed in 1997 as threatened under the Endangered Species Act. Accomplishments for the contract period December 1, 2003 through February 28, 2004 include; seven grade stabilization structures, 0.67 acres of wetland plantings, ten acres tree planting, 500 linear feet streambank erosion control, two acres grass seeding, and 120 acres weed control.

  19. Biological and Physical Inventory of the Streams within the Nez Perce Reservation; Synopsis, 1982-1984 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Fuller, Ross K.; Kucera, P.A.; Johnson, D.B. (Nez Perce Tribe, Lapwai, ID)

    1985-08-01

    This report provides a synopsis for three years of inventory work on the streams in the Lower Clearwater Basin, Idaho. The main emphasis of the study was to document which streams presently support anadromous salmonids, the extent of production in those streams and the identification of those streams which may best respond to enhancement restoration activities. Rainbow-steelhead trout (Salmo gairdneri) were the most abundant anadromous salmonid found. Chinook salmon (Oncorhynchus tshawytscha) were found rarely except in the Lolo Creek Drainage. The main environmental problem affecting these streams was the extreme flow variations which commonly occur. This is due primarily to poor land management practices. Enhancement recommendations are suggested for these streams which include passage around barriers, barrier removal, riparian enhancement, instream habitat improvement, and better land use practices.

  20. 78 FR 41782 - Nez Perce-Clearwater National Forests; Idaho; Notice To Proceed With Forest Plan Revision

    Science.gov (United States)

    2013-07-11

    .... This process will ultimately result in a Forest Land Management Plan which describes the strategic direction for management of forest resources for the next ten to fifteen years on these National Forests.... Forest Plans describe the strategic direction for management of forest resources for ten to fifteen...

  1. Restoring Anadromous Fish Habitat in Big Canyon Creek Watershed, 2004-2005 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Rasmussen, Lynn (Nez Perce Soil and Conservation District, Lewiston, ID)

    2006-07-01

    The ''Restoring Anadromous Fish Habitat in the Big Canyon Creek Watershed'' is a multi-phase project to enhance steelhead trout in the Big Canyon Creek watershed by improving salmonid spawning and rearing habitat. Habitat is limited by extreme high runoff events, low summer flows, high water temperatures, poor instream cover, spawning gravel siltation, and sediment, nutrient and bacteria loading. Funded by the Bonneville Power Administration (BPA) as part of the Northwest Power Planning Council's Fish and Wildlife Program, the project assists in mitigating damage to steelhead runs caused by the Columbia River hydroelectric dams. The project is sponsored by the Nez Perce Soil and Water Conservation District. Target fish species include steelhead trout (Oncorhynchus mykiss). Steelhead trout within the Snake River Basin were listed in 1997 as threatened under the Endangered Species Act. Accomplishments for the contract period September 1, 2004 through October 31, 2005 include; 2.7 riparian miles treated, 3.0 wetland acres treated, 5,263.3 upland acres treated, 106.5 riparian acres treated, 76,285 general public reached, 3,000 students reached, 40 teachers reached, 18 maintenance plans completed, temperature data collected at 6 sites, 8 landowner applications received and processed, 14 land inventories completed, 58 habitat improvement project designs completed, 5 newsletters published, 6 habitat plans completed, 34 projects installed, 2 educational workshops, 6 displays, 1 television segment, 2 public service announcements, a noxious weed GIS coverage, and completion of NEPA, ESA, and cultural resources requirements.

  2. Restoring Anadromous Fish Habitat in Big Canyon Creek Watershed; Anadromous Fish Habitat Restoration in the Nichols Canyon Subwatershed, 2001 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Koziol, Deb (Nez Perce Soil and Water Conservation District, Lewiston, ID)

    2002-02-01

    Big Canyon Creek historically provided quality spawning and rearing habitat for A-run wild summer steelhead in the Clearwater River subbasin (Fuller, 1986). However, high stream temperatures, excessive sediment and nutrient loads, low summer stream flows, and little instream cover caused anadromous fish habitat constraints in the creek. The primary sources of these nonpoint source pollution and habitat degradations are attributed to agricultural, livestock, and forestry practices (NPSWCD, 1995). Addressing these problems is made more complex due to the large percentage of privately owned lands in the watershed. Nez Perce Soil and Water Conservation District (NPSWCD) seeks to assist private, tribal, county, and state landowners in implementing Best Management Practices (BMPs) to reduce nonpoint source pollutants, repair poorly functioning riparian zones, and increase water retention in the Nichols Canyon subwatershed. The project funds coordination, planning, technical assistance, BMP design and installation, monitoring, and educational outreach to identify and correct problems associated with agricultural and livestock activities impacting water quality and salmonid survival. The project accelerates implementation of the Idaho agricultural water quality management program within the subwatershed.

  3. Minnesota Watersheds

    Data.gov (United States)

    Minnesota Department of Natural Resources — Statewide minor watershed delineations with major/minor watershed identifiers and names for provinces, major watersheds, and basins. Also included are watershed...

  4. Vienna progress report on the new facility PERC

    Energy Technology Data Exchange (ETDEWEB)

    Konrad, Gertrud [Atominstitut, TU Wien, Vienna (Austria); Collaboration: PERC-Collaboration

    2012-07-01

    Measurements of neutron decay observables address important open questions of particle physics and are generally complementary to direct searches for new physics beyond the Standard Model (SM) in high-energy physics. Main emphasis lies on the search for evidence of possible extensions to the SM and searches for new symmetry concepts. PERC will perform high-precision measurements of neutron decay correlations at the beam facility MEPHISTO of the FRM-II in Garching. We present a) a novel spatial magnetic neutron spin resonator, MONOPOL. High-precision measurements with PERC require a perfect knowledge and control of the key parameters of the neutron beam, i.e., wavelength distribution, degree of polarization, and time structure. b) a superconducting magnet system. PERC is designed as a source of neutron decay products. The charged decay products are collected by a strong magnetic field directly from inside a neutron guide. c) a system for particle spectroscopy. Depending on the decay parameters studied, the analysis of the decay products must be performed with different and specialized detectors.

  5. Association between Residential Proximity to PERC Dry Cleaning Establishments and Kidney Cancer in New York City

    Directory of Open Access Journals (Sweden)

    Jing Ma

    2009-01-01

    Full Text Available Perchloroethylene (PERC is commonly used as a dry cleaning solvent and is believed to be a human carcinogen, with occupational exposure resulting in elevated rates of kidney cancer. Living near a dry cleaning facility using PERC has been demonstrated to increase the risk of PERC exposure throughout the building where the dry cleaning is conducted, and in nearby buildings. We designed this study to test the hypothesis that living in an area where there are many PERC dry cleaners increases PERC exposure and the risk of kidney cancer. We matched the diagnosis of kidney cancer from hospitalization discharge data in New York City for the years 1994–2004 by zip code of patient residence to the zip code density of dry cleaners using PERC, as a surrogate for residential exposure. We controlled for age, race, gender, and median household income. We found a significant association between the density of PERC dry cleaning establishments and the rate of hospital discharges that include a diagnosis of kidney cancer among persons 45 years of age and older living in New York City. The rate ratio increased by 10 to 27% for the populations in zip codes with higher density of PERC dry cleaners. Because our exposure assessment is inexact, we are likely underestimating the real association between exposure to PERC and rates of kidney cancer. Our results support the hypothesis that living near a dry cleaning facility using PERC increases the risk of PERC exposure and of developing kidney cancer. To our knowledge, this study is the first to demonstrate an association between residential PERC exposure and cancer risk.

  6. PERCHLOROETHYLENE (PERC) INHIBITS FUNCTION OF VOLTAGE-GATED CALCIUM CHANNELS IN PHEOCHROMOCYTOMA CELLS.

    Science.gov (United States)

    The industrial solvent perchloroethylene (PERC) is listed as a hazardous air pollutant in the 1990 Ammendments to Clean Air Act and is a known neurotoxicant. However, the mechanisms by which PERC alters nervous system function are poorly understood. In recent years, it has been d...

  7. The Application of a WEPP Technology to a Complex Watershed Analysis

    Science.gov (United States)

    Elliot, William; Miller, Ina Sue; Dobre, Mariana

    2017-04-01

    Forest restoration activities are essential in many forest stands, where previous management and fire suppression has resulted in stands with high density, diseased trees and excessive fuel loads. Trying to balance the watershed impacts of restoration activities such as thinning, selective harvesting, and prescribed fire against the significant impact of wildfire is challenging. The process is further aggravated by the necessity of a road network if management activities include timber removal. We propose to present an approach to a watershed analysis for a 3400-ha of fuel reduction project within an 18,0000-ha sensitive watershed in the Nez Perce National Forest in Northern Idaho, USA. The FlamMap fire spread model was first used to predict the distribution of potential fire severity on the landscape for the current fuel load, and for a landscape that had been treated by thinning and/or prescribed fire. FlamMap predicts the flame length by 30-m pixel as a function of fuel load and water content, wind speed, and slope steepness and aspect. The flame length distribution was then classified so that the distribution of burn severity (unburned, low, moderate and high severity) was similar to the distributions observed on recent wildfires in the Forest. The flame length classes determined for the current fuel loads were also used for the treated condition flame lengths, where predominantly unburned or low severity fire severities were predicted. The burn severity maps were uploaded to a web site that was developed to provide soil and management files reflecting burn severity and soil texture, formatted for the Geospatial interface to the Water Erosion Prediction Project (GeoWEPP). The study area was divided into 40 sub watersheds under 2.5 km2 each for GeoWEPP analysis. GeoWEPP was run for an undisturbed forest; for the burn severity following wildfire for the current and treated fuel loads; for prescribed fire, either broadcast or jack pot burn; and for thinning either

  8. PerC Manipulates Metabolism and Surface Antigens in Enteropathogenic Escherichia coli

    Science.gov (United States)

    Mellies, Jay L.; Platenkamp, Amy; Osborn, Jossef; Ben-Avi, Lily

    2017-01-01

    Enteropathogenic Escherichia coli is an important cause of profuse, watery diarrhea in infants living in developing regions of the world. Typical strains of EPEC (tEPEC) possess a virulence plasmid, while related clinical isolates that lack the pEAF plasmid are termed atypical EPEC (aEPEC). tEPEC and aEPEC tend to cause acute vs. more chronic type infections, respectively. The pEAF plasmid encodes an attachment factor as well as a regulatory operon, perABC. PerC, a poorly understood regulator, was previously shown to regulate expression of the type III secretion system through Ler. Here we elucidate the regulon of PerC using RNA sequencing analysis to better our understanding of the role of the pEAF in tEPEC infection. We demonstrate that PerC controls anaerobic metabolism by increasing expression of genes necessary for nitrate reduction. A tEPEC strain overexpressing PerC exhibited a growth advantage compared to a strain lacking this regulator, when grown anaerobically in the presence of nitrate, conditions mimicking the human intestine. We show that PerC strongly down-regulates type I fimbriae expression by manipulating fim phase variation. The quantities of a number of non-coding RNA molecules were altered by PerC. In sum, this protein controls niche adaptation, and could help to explain the function of the PerC homologs (Pch), many of which are encoded within prophages in related, Gram-negative pathogens. PMID:28224117

  9. Innovative manufacturing technologies for low-cost, high efficiency PERC-based PV modules

    Energy Technology Data Exchange (ETDEWEB)

    Yelundur, Vijay [Suniva Inc., Norcross, GA (United States)

    2017-04-19

    The goal this project was to accelerate the deployment of innovative solar cell and module technologies that reduce the cost of PERC-based modules to best-in-class. New module integration technology was to be used to reduce the cost and reliance on conventional silver bus bar pastes and enhance cell efficiency. On the cell manufacturing front, the cost of PERC solar cells was to be reduced by introducing advanced metallization approaches to increase cell efficiency. These advancements will be combined with process optimization to target cell efficiencies in the range of 21 to 21.5%. This project will also explore the viability of a bifacial PERC solar cell design to enable cost savings through the use of thin silicon wafers. This project was terminated on 4/30/17 after four months of activity due financial challenges facing the recipient.

  10. PERC 2 High-End Computer System Performance: Scalable Science and Engineering

    Energy Technology Data Exchange (ETDEWEB)

    Daniel Reed

    2006-10-15

    During two years of SciDAC PERC-2, our activities had centered largely on development of new performance analysis techniques to enable efficient use on systems containing thousands or tens of thousands of processors. In addition, we continued our application engagement efforts and utilized our tools to study the performance of various SciDAC applications on a variety of HPC platforms.

  11. Blended Learning: Lessons from Best Practice Sites and the Philadelphia Context. PERC Research Brief

    Science.gov (United States)

    Beaver, Jessica K.; Hallar, Brittan; Westmaas, Lucas; Englander, Katie

    2015-01-01

    The Philadelphia Education Research Consortium--or PERC--was launched in August 2014 as an innovative partnership designed to provide research and analyses on some of the city's most pressing education issues. This partnership was forged among the School District of Philadelphia, Philadelphia's charter school sector, and Research for Action (RFA).…

  12. Ecology of the Mexican Abies durangensis Martínez

    OpenAIRE

    C.Z., QuiñonesPérez; R., SilvaFlores; C., Wehenkel

    2014-01-01

    The genus Abies has about 40 species, which are mainly distributed in boreal or subalpine areas. In Mexico as a diversity center for this genus, all eight species of Abies are protected. Six of them are endemic and mainly distributed in the Sierra Madre Occidental and Oriental. The often isolated relict Abies durangensis Martínez, also known as Durango Fir, is located in the states of Durango, Chihuahua, Sinaloa, and Jalisco and usually grows on slopes with well-drained and shallow lithosols,...

  13. Caridad Martínez: Una mujer de su tiempo

    Directory of Open Access Journals (Sweden)

    Xiomara Romero Rojas

    2014-01-01

    Full Text Available El trabajo de Caridad Martínez ha estado íntimamenteligado a la dirección de radionovelas género donde seha distinguido por la profesionalidad que la caracteriza.También es una excepcional maestra e investigadora consagrada,lo que le ha permitido descubrir el secreto profundode la vida humana, sus conflictos, sus vicios, susgrandezas, y ese espíritu de pasión, y amor que muevena los hombres, y sacuden lo más profundo de su esencia,lo cual refleja en sus escritos con admirable delicadeza.El secreto de Caridad Martínez está en esa entregatotal e incondicional a todo lo que hace, en ella la necesidadde hacer sus realizaciones todo lo mejor posible esparte esencial de su formación y de su vida. El medio, loscompañeros, y el sentir la imperiosa necesidad de ser mejores lo que la guía a transformar la fealdad en belleza , lamaldad en amor, el interés mezquino en bondad, lo cualha recreado en cada una de las novelas que ha dirigidoy plasmado en sus enseñanzas y en la educación de sushijos en donde cristaliza la brillantez de obra.

  14. Review of Nuria del Campo Martínez: Illocutionary Constructions in English: Cognitive Motivation and Linguistic Realization (2013)

    DEFF Research Database (Denmark)

    Jensen, Kim Ebensgaard

    2014-01-01

    A review of Nuria del Campo Martínez: Illocutionary Constructions in English: Cognitive Motivation and Linguistic Realization (2013)......A review of Nuria del Campo Martínez: Illocutionary Constructions in English: Cognitive Motivation and Linguistic Realization (2013)...

  15. Optimization of Rear Local Al-Contacts on High Efficiency Commercial PERC Solar Cells with Dot and Line Openings

    Directory of Open Access Journals (Sweden)

    Peisheng Liu

    2014-01-01

    Full Text Available Crystalline silicon PERCs with dot or line openings on rear surface were studied here. By measuring the minor carrier lifetimes of the PERCs with dot and line openings, passivation effects of rear surface with dot and line openings were discussed. The performance affected by dot and line openings was analyzed in detail by testing the open-circuit voltages, short-circuit current densities, fill factors, and conversion efficiencies of the PERCs. The results show that the wider space resulted in better minor carrier lifetimes on the rear surface. And the cells with a line opening space of 0.5 mm had an average of 0.22% improvement of conversion efficiency, compared with the cells with full-area Al-BSF. On the other hand, the dot opening PERCs exhibited only a conversion efficiency of 17.4%, although there had been good rear surface reflectivity. The bad Al-Si alloy layer and large hollow densities in dot Al-contacts resulted in bad performance of the PERCs with dot openings.

  16. CARIDAD MARTÍNEZ: UNA MUJER DE SU TIEMPO

    Directory of Open Access Journals (Sweden)

    Xiomara Romero Rojas

    2014-05-01

    Full Text Available Caridad Martinez´s work has been intimately bound to the direction of soap operas’ radio gender where she has been distinguished for the profesionalism that characterizes it. She is also an exceptional teacher and consecrated investigator, what has allowed him to discover the deep secret of the human life, their conflicts, their bad habits, their greatness, and that spirit of passion, and love that move the men, and they shake the deepest in their essence, that which reflective in their writings with admirable fineness. The secret of Caridad Martínez is in that total and unconditional delivery to everything that she makes, in her the necessity to make his realizations all the better one possible it is essential part of his formation and of his life. The means, the partners, and feeling the imperious necessity to be better is it that the guide to transform the ugliness in beauty, the wickedness in love, the mean interest in kindness, that which has recreated in each one of the novels that has directed and captured in their teachings and in the education of their children where crystallizes the work brightness.

  17. Watershed District

    Data.gov (United States)

    Kansas Data Access and Support Center — Boundaries show on this map are derived from legal descriptions contained in petitions to the Kansas Secretary of State for the creation or extension of watershed...

  18. Watershed Investigations

    Science.gov (United States)

    Bodzin, Alec; Shive, Louise

    2004-01-01

    Investigating local watersheds presents middle school students with authentic opportunities to engage in inquiry and address questions about their immediate environment. Investigation activities promote learning in an investigations interdisciplinary context as students explore relationships among chemical, biological, physical, geological, and…

  19. Gregorio Martínez, cronista de otra historia Gregorio Martínez, chronicler ot another history

    Directory of Open Access Journals (Sweden)

    Alejandra Huespe

    2012-01-01

    Full Text Available Los mitos fundamentales de la conquista de América se sostuvieron sobre una idea de base: la existencia de una región fabulosa situada sobre la franja equinoccial. La necesidad de hallar oro en esas regiones ignotas marcó un impulso fundamental en el proceso de conquista y constituyó uno de los móviles más fuertes, sino tal vez el más importante. A partir del concepto ficciones de archivo que propone Roberto González Echevarría (2000, el presente trabajo aborda la forma en que se actualizan los mitos de la conquista en la obra literaria Crónica de músicos y diablos (1985 del escritor peruano Gregorio Martínez (Nasca, 1942.The fundamental myths of the conquest of America were based upon one fundamental principle: the existence of a region located on the fabulous equator strip. The need to find gold in those unknown regions was a major boost in the process of conquest and was one of the strongest motives, and perhaps the most important one. Based on the concept ficciones de archivo proposed by Roberto Gonzalez Echevarría (2000, this paper addresses how myths of conquest are updated in Crónica de músicos y diablos (1985 written by Gregorio Martinez (Nasca, 1942.

  20. Healthy Watersheds Protection

    Science.gov (United States)

    Jump to main content US EPA United States Environmental Protection Agency Search Search Healthy Watersheds Protection (HWP) Share ... live in a watershed — thus watershed condition is important to everyone. Watersheds exist at different geographic scales, ...

  1. Trophic structure and mercury biomagnification in tropical fish assemblages, Iténez River, Bolivia.

    Science.gov (United States)

    Pouilly, Marc; Rejas, Danny; Pérez, Tamara; Duprey, Jean-Louis; Molina, Carlos I; Hubas, Cédric; Guimarães, Jean-Remy D

    2013-01-01

    We examined mercury concentrations in three fish assemblages to estimate biomagnification rates in the Iténez main river, affected by anthropogenic activities, and two unperturbed rivers from the Iténez basin, Bolivian Amazon. Rivers presented low to moderate water mercury concentrations (from 1.25 ng L(-1) to 2.96 ng L(-1)) and natural differences in terms of sediment load. Mercury biomagnification rates were confronted to trophic structure depicted by carbon and nitrogen stable isotopes composition (δ(15)N; δ(13)C) of primary trophic sources, invertebrates and fishes. Results showed a slight fish contamination in the Iténez River compared to the unperturbed rivers, with higher mercury concentrations in piscivore species (0.15 µg g(-1) vs. 0.11 µg g(-1) in the unperturbed rivers) and a higher biomagnification rate. Trophic structure analysis showed that the higher biomagnification rate in the Iténez River could not be attributed to a longer food chain. Nevertheless, it revealed for the Iténez River a higher contribution of periphyton to the diet of the primary consumers fish species; and more negative δ(13)C values for primary trophic sources, invertebrates and fishes that could indicate a higher contribution of methanotrophic bacteria. These two factors may enhance methylation and methyl mercury transfer in the food web and thus, alternatively or complementarily to the impact of the anthropogenic activities, may explain mercury differences observed in fishes from the Iténez River in comparison to the two other rivers.

  2. Treatment of moderate hallux valgus by percutaneous, extra-articular reverse-L Chevron (PERC) osteotomy.

    Science.gov (United States)

    Lucas y Hernandez, J; Golanó, P; Roshan-Zamir, S; Darcel, V; Chauveaux, D; Laffenêtre, O

    2016-03-01

    The aim of this study was to report a single surgeon series of consecutive patients with moderate hallux valgus managed with a percutaneous extra-articular reverse-L chevron (PERC) osteotomy. A total of 38 patients underwent 45 procedures. There were 35 women and three men. The mean age of the patients was 48 years (17 to 69). An additional percutaneous Akin osteotomy was performed in 37 feet and percutaneous lateral capsular release was performed in 22 feet. Clinical and radiological assessments included the type of forefoot, range of movement, the American Orthopedic Foot and Ankle (AOFAS) score, a subjective rating and radiological parameters. The mean follow-up was 59.1 months (45.9 to 75.2). No patients were lost to follow-up. The mean AOFAS score increased from 62.5 (30 to 80) pre-operatively to 97.1 (75 to 100) post-operatively. A total of 37 patients (97%) were satisfied. At the last follow up there was a statistically significant decrease in the hallux valgus angle, the intermetatarsal angle and the proximal articular set angle. The range of movement of the first metatarsophalangeal joint improved significantly.. There was more improvement in the range of movement in patients who had fixation of the osteotomy of the proximal phalanx. Preliminary results of this percutaneous approach are promising. This technique is reliable and reproducible. Its main asset is that it maintains an excellent range of movement. The PERC osteotomy procedure is an effective approach for surgical management of moderate hallux valgus which combines the benefits of percutaneous surgery with the versatility of the chevron osteotomy whilst maintaining excellent first MTPJ range of motion. ©2016 The British Editorial Society of Bone & Joint Surgery.

  3. El momento de don Gonzalo Jiménez de Quesada

    Directory of Open Access Journals (Sweden)

    Guillermo Hernández de Alba

    1979-02-01

    Full Text Available El lunes 16 de febrero del año del Señor de mil y quinientos y setenta y nueve años muere en Mariquita, lugar de su retiro, el glorioso Conquistador del Nuevo Reino de Granada y fundador de Bogotá, el Adelantado Don Gonzalo Jiménez de Quesada.

  4. El acontecimiento en el cuento: nueva lectura de José Jiménez Lozano

    OpenAIRE

    2010-01-01

    Se reseña un libro que estudia como un todo los cuentos de Jiménez Lozano publicados hasta la fecha (y, en particular, La Piel de los tomates) a la luz de una teoría del cuento desde la categoría del acontecimiento.

  5. Los hombres. Juan Ramón Jiménez y Jaime Robledo Uribe

    Directory of Open Access Journals (Sweden)

    Boletín Cultural y Bibliográfico Banco de la República

    1958-05-01

    Full Text Available En el documento se realiza sendas notas de conmemoración  del fallecimiento de don Juan Ramón Jiménez  y don Jaime Robledo Uribe. Esta pequeña nota tiene como fin realizar un homenaje a tan reputados miembros del círculo cultural del país.

  6. Laudation in honor of Professor Miguel Ángel Jiménez Montaño

    Science.gov (United States)

    Ramos-Fernández, Antero

    2013-12-01

    During our academic event, a laudatory ceremony in honor of Professor Miguel Ángel Jiménez Montaño was carried out and a brief account of his achievements was presented. Professor JJiménez Montaño is a founding member of the Faculty of Physics of the University of Veracruz, Campus Xalapa (founded in 1962). Professor Jiménez Montaño is currently the Dean of this Faculty and one of the most respected Mexican Physicist in the research areas of Biophysics and Computational Molecular Biology.

  7. Ibridismo è ideologia Alcune considerazioni sul poema in prosa di Jiménez.

    Directory of Open Access Journals (Sweden)

    Ida Grasso

    2016-05-01

    Full Text Available Le raccolte Platero y yo e Diario de un poeta reciencasado nate, come ricorda lo stesso Jiménez, da reali occasioni autobiografiche, e pubblicate nello stesso anno (1917 costituiscono uno snodo importante non solo nella produzione lirica del grande poeta di Moguer. In esse la novità è anzitutto di tipo formale: sperimentando con sempre maggiore consapevolezza il genere del poema in prosa, e contaminandolo, come si vede in modo particolare nel Diario, con la versificazione libera, Jiménez avvia una seconda fase della sua ricerca poetica. A quale tradizione lirica, in primo luogo ispanica, e poi europea, è possibile ascrivere l’ibridazione dei generi poetici sperimentata da Jiménez? Quale finalità lirica esorta il poeta ad adoperare il poema in prosa per narrare di personali esperienze biografiche? Che tipo di soggettività veicola questo genere-non genere della modernità? E più in generale: è possibile che l’autore andaluso attribuisca al poema in prosa, oltre che una funzione lirico-narrativa, precipui contenuti metapoetici? Nel presente studio si proverà a rispondere a tali interrogativi a partire dallo studio delle due opere menzionate, che hanno il vantaggio di definirsi come due campioni pressocché coevi dell’ibridismo del poeta. L’ipotesi è che in Platero e nel Diario Jiménez si faccia portavoce di una sorta di personale bilancio, non solo rispetto alla tradizione modernista ispanica, ma anche a quella europea. In controtendenza con quest’ultima, che trova il suo archetipo negli Spleen baudelairiani, per l’autore andaluso l’ibridazione dei generi lirici non è una modalità di rappresentazione della disarticolazione del moderno, ma al contrario, e piuttosto in linea con la generazione lirica ispanica a cui egli appartiene, di affermazione di una visione di un mondo coeso e denso di ethos.} Jiménez’s collections of poems Platero y yo and Diario de un poeta reciencasado, written after real

  8. A comparison of micro-PERC and retrograde intrarenal surgery results in pediatric patients with renal stones.

    Science.gov (United States)

    Sen, Haluk; Seckiner, Ilker; Bayrak, Omer; Dogan, Kazim; Erturhan, Sakip

    2017-06-19

    With advancements in endoscopic surgery, open surgical techniques for urinary system stones have paved the way for the application of less invasive treatment modalities in patients with pediatric kidney stone disease. These treatment options include extracorporeal shock wave lithotripsy (ESWL), percutaneous nephrolithotomy (PCNL), and retrograde intrarenal surgery (RIRS). We aimed to compare the efficacy and safety of RIRS and micro-PCNL techniques in the surgical treatment of kidney stones in pediatric patients. A total of 48 pediatric patients, who underwent RIRS or micro-PERC for pediatric kidney stone disease, were retrospectively analyzed. Urinalysis, urine culture, serum creatinine (Cr), blood urea nitrogen (BUN), calcium, phosphorus, parathyroid hormone, 24-hour urine sample, complete blood count (CBC), urinary system X-ray, kidney ureter bladder (KUB), and urinary system ultrasonography (USG) test results were evaluated prior to the procedure. Intravenous pyelography (IVP), non-contrast computed tomography (CT), and renal scintigraphy evaluations were also performed, if necessary. The patients were divided into two groups: micro-PERC group (n = 25) and RIRS group (n = 23). Data relating to the duration of the operation, duration of fluoroscopy, length of hospitalization, complication rates, and stone-free rates were recorded. The mean ages of the micro-PERC and RIRS groups were 4 ± 2.3 and 10.9 ± 3 years, respectively (p = 0.001). However, the mean stone sizes were 12.2 ± 2.8 and 13.7 ± 3.5 mm, respectively (p > 0.05). The mean duration of operation was 75.1 ± 18.9 min in the micro-PERC group and 62.3 ± 15.3 min in the RIRS group (p > 0.05). In addition, the mean duration of fluoroscopy was 115 ± 35.4 s in the micro-PERC group and 39.9 ± 15.3 s in the RIRS group. The stone-free rates in the micro-PERC and RIRS groups following the procedure were reported to be 84% (21/25) and 82.6% (19/23), respectively (p > 0

  9. Low Cost Local Contact Opening by Using Polystyrene Spheres Spin-Coating Method for PERC Solar Cells

    Directory of Open Access Journals (Sweden)

    Chia-Hsun Hsu

    2016-07-01

    Full Text Available The passivated emitter and rear cell (PERC concept is one of the most promising technologies for increasing crystalline silicon solar cell efficiency. Instead of using the traditional laser ablation process, this paper demonstrates spin-coated polystyrene spheres (PS to create local openings on the rear side of PERCs. Effects of PS concentration and post-annealing temperature on PERC performance are investigated. The experimental results show that the PS are randomly distributed on wafers and no PS are joined together at a spin rate of 2000 rpm. The PS can be removed at a temperature of 350 °C, leaving holes on the passivation layers without damaging the wafer surfaces. As compared to the laser opening technique with the same contact fraction, the PS opening technique can yield a higher minority effective lifetime, a higher implied open-circuit voltage, and a slightly higher short-circuit current. Although the fill factor of the PS opening technique is lower owing to non-optimized distribution of the openings, the conversion efficiency of the devices is comparable to that of devices prepared via the laser opening process.

  10. La ficción de Iván Molina Jiménez (Science Fiction by Iván Molina Jiménez

    Directory of Open Access Journals (Sweden)

    Roy Alfaro Vargas

    2014-11-01

    Full Text Available El estudio analiza la narrativa de ciencia ficción de Iván Molina Jiménez, a partir de un cuerpo teórico para abordar el análisis y la producción literaria de ciencia ficción, desde una adecuada poiesis. Se plantean los principios alrededor de la noción de novum, para la producción literaria de este tipo. Luego, se analizan algunos textos de ciencia ficción de Molina, y se muestran deficiencias de tal producción para así iniciar la construcción de las bases de la ciencia ficción costarricense. This article analyzes the tales of science fiction by Iván Molina Jiménez using a theoretical framework which makes it possible to address the literary production of science fiction, from the perspective of an adequate poiesis. The necessary principles based on the notion of novum are proposed for this genre. Then, some texts of science fiction by Iván Molina are analyzed, indicating certain deficiencies in order to begin the construction of the basis of the Costa Rican science fiction.

  11. Martínez Sanabria en un país de artesanos

    Directory of Open Access Journals (Sweden)

    Jimena Montaña Cuéllar

    2011-06-01

    Full Text Available De la arquitectura orgánica a la arquitectura del lugar en las casas Wilkie (1962 y Calderón (1963 de Fernando Martínez Sanabria. Germán Darío Rodríguez Botero. Universidad Nacional de Colombia (Sede Bogotá, Facultad de Artes, Colección Punto aparte, Bogotá, 2007, 232 págs.

  12. Martínez Sanabria en un país de artesanos

    OpenAIRE

    Jimena Montaña Cuéllar

    2011-01-01

    De la arquitectura orgánica a la arquitectura del lugar en las casas Wilkie (1962) y Calderón (1963) de Fernando Martínez Sanabria. Germán Darío Rodríguez Botero. Universidad Nacional de Colombia (Sede Bogotá), Facultad de Artes, Colección Punto aparte, Bogotá, 2007, 232 págs.

  13. José Miguel Jiménez receives Order of Alfonso X the Wise

    CERN Multimedia

    CERN Bulletin

    2016-01-01

    On 12 July 2016, José Miguel Jiménez, Head of CERN Technology Department, has been awarded a spanish civil decoration — an encomienda — of the Order of Alfonso X the Wise (see here), for his outstanding experience in the field of research and scientific management in particle physics.   The ceremony took place at the National Library of Spain, in Madrid, on 12 July. From left: Marcial Marín Hellín, Secretary of State for Education, Professional training and Universities; José María Lassalle Ruiz, Secretary of State for Culture; Íñigo Méndez de Vigo y Montojo, Ministry of Education, Culture and Sport; José Miguel Jiménez, Head of CERN Technology Department; Carmen Vela Olmo, Secretary of State for Investigation, Development and Innovation. (Photo: ©Javier Martínez de la Torre, M...

  14. El Profesor Académico, Dr. Pablo Gómez Martínez.

    Directory of Open Access Journals (Sweden)

    Zoilo Cuéllar-Montoya

    2007-12-01

    Más adelante, en la misma Presidencia de la Academia del Profesor Pedro José Almánzar Vargas (1963 – 1965, fue promovido Gómez Martínez a la categoría de Miembro de Número(2,10 con el trabajo “Ilio-cisto-plastia con colgajo sero-muscular invertido y reconstrucción de vejigas funcionales” (2,11. En la sesión ordinaria de la Academia del día 12 de marzo de 1964, el Académico Correspondiente Gómez Martínez presentó el trabajo mencionado(2,12 y, en la sesión ordinaria del día 14 de mayo de 1964, en virtud de haber quedado vacantes las sillas de los Señores Académicos de Número Jaime Jaramillo Arango, fallecido en Bogotá, el 31 de julio de 1962(2,13, Manuel José Luque Guevara, retirado por precarias condiciones de salud(2,14, y Fernando Torres Restrepo, trasladado definitivamente a los Estados Unidos(2,15, la Academia, en votación secreta, eligió, como Miembros de Número, a los Señores Académicos Correspondientes Pablo Gómez Martínez, Alfredo Artunduaga y J. Hernando Hernández Garay(2,16...

  15. Data of the recombination loss mechanisms analysis on Al2O3 PERC cell using PC1D and PC2D simulations.

    Science.gov (United States)

    Huang, Haibing; Lv, Jun; Bao, Yameng; Xuan, Rongwei; Sun, Shenghua; Sneck, Sami; Li, Shuo; Modanese, Chiara; Savin, Hele; Wang, Aihua; Zhao, Jianhua

    2017-04-01

    This data article is related to our recently published article ('20.8% industrial PERC solar cell: ALD Al2O3 rear surface passivation, efficiency loss mechanisms analysis and roadmap to 24%', Huang et al., 2017 [1]) where we have presented a systematic evaluation of the overall cell processing and a cost-efficient industrial roadmap for PERC cells. Aside from the information already presented in Huang et al., 2017 [1], here we provide data related to Sectin 3 in Huang et al., 2017 [1] concerning the analysis of the recombination losses׳ mechanisms by PC1D V5.9 and PC2D simulations (Clugston and Basore, 1997, Basore and Cabanas-Holmen, 2011, Cabanas-Holmen and Basore, 2012 and Cabanas-Holmen and Basore, 2012.) [2], [3], [4], [5] on our current industrial Al2O3 PERC cell. The data include: i) PC2D simulations on J02, ii) the calculation of series resistance and back surface recombination velocity (BSRV) on the rear side metallization of PERC cell for the case of a point contact, and iii) the PC1D simulation on the cumulative photo-generation and recombination along the distance from the front surface. Finally, the roadmap of the solar cell efficiency for an industrial PERC technology up to 24% is presented, with the aim of providing a potential guideline for industrial researchers.

  16. Adopt Your Watershed

    Data.gov (United States)

    U.S. Environmental Protection Agency — Adopt Your Watershed is a Website that encourages stewardship of the nation's water resources and serves as a national inventory of local watershed groups and...

  17. Conflitos, Rendimento Académico e Perceção de Apoio dos Alunos na escola

    OpenAIRE

    Ildefonso, Ana Paula; Veiga, Feliciano

    2012-01-01

    A crescente complexidade e conflitualidade da sociedade refletem-se na escola. O objetivo deste estudo foi encontrar respostas para o seguinte problema geral: Como é que os alunos do ensino básico percecionam o conflito na escola? Para avaliação da perceção dos conflitos na escola utilizou-se o "Questionário de Convivência Escolar" (Cangas et al., 2007). The main pourpose of this study was to address the following general problem: How do basic education students perceive conflict within sc...

  18. Ezequiel Martínez Estrada: el profesor al servicio de las ideas

    Directory of Open Access Journals (Sweden)

    María Lourdes Gasillón

    2016-07-01

    Full Text Available Ezequiel Martínez Estrada was an important essayist in the cultural field thanks to to his descriptions and analyses of Argentine and Latin American reality. However, he also reflected on Argentine and foreign intellectuals and he worked as a teacher. In this paper, we focus on the compilation En torno a Kafka y otros ensayos [Regarding Kafka, and other essays] to establish a connection between his concept of education and the writer's own teaching practice, starting from his literary influences, Franz Kafka and Pedro Henríquez Ureña

  19. Entrevista a Rafael Martínez Raymonda, sobre la figura de Lisandro de la Torre

    OpenAIRE

    Martínez Raymonda, Rafael; Toschi, Damián

    2010-01-01

    Rafael Martínez Raymonda, secretario general del partido Demócrata Progresista, es entrevistado por Damián Toschi para el programa "Derecho de autor" con motivo de los 142 años del nacimiento de Lisandro de la Torre, fundador del partido y político fundamental del siglo XX. Lisandro de la Torre: Nació el 6 de diciembre de 1868 en Santa Fe y se suicidó el 5 de enero de 1939 en Buenos Aires.

  20. Lago artificial de Martiánez Canarias – España

    Directory of Open Access Journals (Sweden)

    Amigó, Juan A.

    1980-06-01

    Full Text Available In this article a technical description is given of the works of the Artificial Lake of Martiánez. This work that was executed after gaining some 33,000 m2 from the sea mainly consisted of creating a small artificial lake of seawater surrounded by solariums, beaches and gardens. Inside the lake — that has an area of some 15,000 m2 — five natural islands were formed, most of which have tourist complexes built on them, consisting of: night club, restaurants, bars, terraces, etc.

    En este artículo se hace una descripción técnica de las obras del Lago Artificial de Martiánez. Esta obra, realizada tras ganar al mar unos 33.000 m2 consistió, principalmente, en la creación de un pequeño lago artificial de agua de mar rodeado de solarios, playas y jardines. En el interior del lago —cuya superficie es de unos 15.000 m2— se formaron cinco islas naturales, en la mayor de las cuales se construyó un complejo turístico que consta de: sala de fiestas, restaurantes, bares, terrazas, etc.

  1. Liberalism Revisited: The Autobiographical Writings of Alberto Jiménez Fraud (1883-1964

    Directory of Open Access Journals (Sweden)

    Mercedes Montero Díaz

    2010-01-01

    Full Text Available La Residencia de Estudiantes de la Institución Libre de Enseñanza (1910-1936, quiso formar las minorías selectas encargadas de liderar la transformación de España. El centro estuvo dirigido por Alberto Jiménez Fraud (1883-1964, que dedicó la vida a este proyecto de renovación. La Guerra Civil acabó con ello. Jiménez Fraud salió de España en septiembre de 1936 y pasó el exilio entre las Universidades de Oxford y Cambridge. Sus escritos plantean una pregunta constante sobre la causa de ese fracaso vital: por qué el proyecto de educación liberal de la Institución fue despreciado por las masas a las que pretendía reformar, y acabó destruido por la furia de la sangre. Una y otra vez propone como solución el ideal ya rechazado: el retorno a la educación de selectos en una época que era ya la de la rebelión de las masas.

  2. Las “Historias ilustrativas de la violencia” de Edilberto Jiménez: narrativa, testimonio y memoria

    Directory of Open Access Journals (Sweden)

    Elisa Cairati

    2013-06-01

    Full Text Available This work aims to analyse the cultural contents and aesthetic position of Edilberto Jiménez Quispe’s illustrations of the age of violence, presented in Chungui: violencia y trazos de memoria (Lima, 2009. Jiménez, through the plastic and figurative traditional style, makes public the concealed and denied memory of the Internal Armed Conflict. The combination of testimonies and paintings is concerned as an emotional significance of memory: a space of re-established dialogue after the age of violence, in the direction of the elaboration of identity in the region of Ayacucho.

  3. La Obra de Juan Ramón Jiménez como elaboración vivida del concepto del absoluto

    DEFF Research Database (Denmark)

    Jensen, Hans Julio Casado

    2002-01-01

    Juan Ramón Jiménez, spansk litteratur, 20. århundredes litteratur, forhold litteratur og filosofi, forfatterbiografi.......Juan Ramón Jiménez, spansk litteratur, 20. århundredes litteratur, forhold litteratur og filosofi, forfatterbiografi....

  4. Watershed Boundaries - Watershed Boundary Database for Montana

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is a complete digital hydrologic unit boundary layer of the Subbasins (8-digit), Watersheds (10-digit), and Subwatersheds (12-digit) for Montana. This...

  5. Crime as a complex system. Comment on "Statistical physics of crime: A review" by M.R. D'Orsogna and M. Perc

    Science.gov (United States)

    Pacheco, Jorge M.

    2015-03-01

    Maria R. D'Orsogna and Matjaž Perc [1] summarize, in this review, a growing body of research that applies mathematical methods, some of which originating in statistical physics, to the understanding of the emergence and diffusion of crime.

  6. Martínez Campos y Cuba : de la paz de Zanjón al "desastre"

    Directory of Open Access Journals (Sweden)

    María Ángeles Lario González

    2001-01-01

    Full Text Available Los planes de Martínez Campos tras conseguir la paz de Zanjón en 1879 eran que Cuba fuera una provincia más de España, con todas las consecuencias, sociales y económicas sobre todo, que eso implicaba. Cánovas lo sacó urgentemente de la isla y lo colocó enfrente mismo del problema que planteaba: en el Gobierno. La experiencia de Martínez Campos con la mayoría conservadora y el incumplimiento de algunos acuerdos, lo llevó hacia el partido de Sagasta. Con él se fueron los principales Generales de la Restauración. Esta decisión abrió a Sagasta las puertas del Gobierno por primera vez en la Restauración: 1881. Pero no fue, ni mucho menos, la única vez que su actitud fue decisiva en los cambios políticos. Martínez Campos, además de mediador en el Ejército y consejero de la Corona en las crisis políticas, fue un embajador en diferentes conflictos y vigilante de la política de los partidos, tanto respecto al Ejército, la Corona o el tema colonial.The plans of Martínez Campos were that Cuba becomes a province of Spain after its pacification in 1879, with the social and enonomic consequences. Cánovas brought him to Spain confrot him with the probiem and gave him the presidency of the Spanish Government. The bad relations of Martínez Campos and the conservative mayority, hat important consequences: Martínez Campos separeted from Cánovas and took with him the Generáis of the Restauration. This openend the door of the Government to Sagasta in 1881. But this wasn't the only time when his behaviour was decisive during Government changes. Martínez Campos was intermediary for the Army, adviser for the Crown, ambassador during differents conflicts, and controller for the political parties, Army Monarchy and colonial issues.

  7. Chemins de traverse d’Ignacio Martínez de Pisón

    OpenAIRE

    Morello, André-Alain

    2013-01-01

    Chemins de traverse d’Ignacio Martínez de Pisón se présente comme la pseudo autobiographie d’un adolescent, Felipe, qui, à la mort de sa mère, est condamné à vivre avec un père marginal. Le texte est aussi la conversion d’un récit de type picaresque en un roman qui débouche sur la découverte mutuelle d’un père et d’un fils. L’errance des deux personnages, chemin de fuite destiné à compenser la disparition de Cecilia, conduit à une sorte d’assomption de l’amour. Caminos secundarios, de Igna...

  8. Peltomexicanin, a Peltogynoid Quinone Methide from Peltogyne Mexicana Martínez Purple Heartwood

    Directory of Open Access Journals (Sweden)

    Paulina Gutiérrez-Macías

    2016-02-01

    Full Text Available Peltomexicanin (7,10-dihydroxy-6,12-dioxa-5H-tetraphen-3-one is a new peltogynoid quinone methide isolated from Palo Morado (Peltogyne mexicana Martínez heartwood by column chromatography. Its chemical structure was elucidated by IR, NMR (1H, 13C, 2D NMR experiments (COSY, NOESY, HMQC, and HSQC, ESI-MS, and UV-Vis spectroscopic analysis. According to HPLC quantification, this compound is the main pigment and accounts for 1.21% of Palo Morado heartwood material. The antioxidant activity of peltomexicanin and dried methanolic extract (DEx of purple heartwood was evaluated using the radical of 2,2’-azinobis-(3-ethylbenzothiazoline-6-sulphonic acid (ABTS assay, and the corresponding values expressed as Trolox equivalents (µmol TE/mg sample were 4.25 and 4.57, respectively.

  9. Juan Ramón Jiménez y el mercado editorial

    OpenAIRE

    Sánchez García, Raquel

    2003-01-01

    Este trabajo pretende analizar las vinculaciones de Juan Ramón Jiménez con el mundo de la edición. El objetivo es ver el camino que siguió para dar a conocer sus versos: con qué empresas editoriales contrató la publicación de sus libros, cómo logró los medios para llevarlo a cabo y de qué canales se sirvió para distribuirlos. Se trata de analizar un fenómeno muy frecuente entre los autores del primer tercio del siglo XX: la autoedición. También se abordará la participación de Juan Ramón en al...

  10. Manuel Martínez de la Escalera, ciencia y aventura en Oriente

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    Casado, Santos

    2005-04-01

    Full Text Available Manuel Martínez de la Escalera fue el expedicionario más destacado entre los naturalistas españoles de las décadas en torno al cambio de siglo. Su dedicación a la entomología, especialmente a los coleópteros, le llevó a organizar sendas expediciones, financiadas por un coleccionista francés, a Asia Menor y Siria en 1898 y a Persia en 1899. Lo aventurero de sus viajes a Oriente, subrayado por la penuria material con que se realizaron, marcó la incorporación de Escalera al imaginario colectivo de la reducida comunidad naturalista española, con una intensidad que contrasta con el olvido de los medios académicos oficiales y de la posterior historiografía de la ciencia.…

  11. Developing a Watershed Challenge

    Science.gov (United States)

    Roman, Harry T.

    2010-01-01

    This article presents a watershed challenge that gives students an opportunity to investigate the challenge of using a watershed area as a site for development, examining the many aspects of this multifaceted problem. This design challenge could work well in a team-based format, with students taking on specific aspects of the challenges and…

  12. Watersheds in disordered media

    CERN Document Server

    Araújo, N A M; Herrmann, H J; Andrade, J S

    2014-01-01

    What is the best way to divide a rugged landscape? Since ancient times, watersheds separating adjacent water systems that flow, for example, toward different seas, have been used to delimit boundaries. Interestingly, serious and even tense border disputes between countries have relied on the subtle geometrical properties of these tortuous lines. For instance, slight and even anthropogenic modifications of landscapes can produce large changes in a watershed, and the effects can be highly nonlocal. Although the watershed concept arises naturally in geomorphology, where it plays a fundamental role in water management, landslide, and flood prevention, it also has important applications in seemingly unrelated fields such as image processing and medicine. Despite the far-reaching consequences of the scaling properties on watershed-related hydrological and political issues, it was only recently that a more profound and revealing connection has been disclosed between the concept of watershed and statistical physics o...

  13. Dos cartas inéditas de María Lejárraga dirigidas a Gregorio Martínez Sierra

    OpenAIRE

    2008-01-01

    El artículo recoge la publicación de dos cartas inéditas de la correspondencia privada de Gregorio Martínez Sierra. Las cartas están fechadas en 1925 y 1946, respectivamente. Están escritas por María de la O Lejárraga y dirigidas a Gregorio Martínez Sierra. El artículo pretende dejar constancia de la relación profesional y personal que mantuvieron Gregorio Martínez Sierra y María Lejárraga hasta la muerte del dramaturgo en 1947.

  14. Enfermedad y muerte de Don Gonzalo Jiménez de Quesada

    Directory of Open Access Journals (Sweden)

    Fernando Serpa Florez

    1997-12-01

    Full Text Available

    La lepra es una enfermedad que se caracteriza por la insidia de su presencia, su lenta evolución y la progresiva incapacidad que en sus víctimas causa.

    Esto y el temor que ha infundido desde tiempos bíblicos, han hecho que ante ella se haya mantenido una actitud ambivalente de negación hasta donde es posible y de rechazo irracional a quien la padece, por temor al contagio.

    Ejemplo de ello es el aura de sagrado misterio que envuelve la leyenda de los padecimientos del Adelantado don Gonzalo Jiménez de Quesada (1509-1579, conquistador del Nuevo Reino de Granada y fundador de Santafé de Bogotá en el año de 1538, muerto a la edad, avanzada para la época, de setenta años.

    No se puede afirmar, en forma definitiva, que el conquistador fuera leproso. Se acepta, acogiendo el argumento de autoridad que tiene el primer historiador médico entre nosotros, don Pedro María Ibáñez, quien escribió en 1884, en las Memorias para la Historia de la Medicina en Santa Fe, que en “1579 falleció en la ciudad de Mariquita, y de mal de lepra o elefancía de los

    Coincide ello con lo que consigna don José María Vergara y Vergara en su Cuadro Cronológico de la Nueva Granada (hoi Estados Unidos de Colombia, desde los cipas hasta nuestros días (se ha conservado la ortografía usada a mediados del siglo XIX, preconizada por don Andrés Bello, estudio publicado en 1866, en que informa que a poco de posesionarse el tercer Presidente del Nuevo Reino, don Lope Díez Aux de Armendáriz: “ocurrió la muerte del adelantado Gonzalo Jiménez de Quesada que tuvo lugar en Mariquita el 16 de febrero de 1579, a la edad de ochenta años no cumplidos (sic, i de enfermedad de lepra (…” (2.

    Estos conceptos fueron debatidos por contemporáneos de Vergara y de Ibáñez como el doctor Juan de Dios Carrasquilla aduciendo, entre otros argumentos, que la lepra no fue mencionada por los coetáneos del conquistador. Y que la sífilis, com

  15. Review of García, Jiménez & Martínez (2010 Guía para incorporar la perspectiva de género a la investigación en salud

    Directory of Open Access Journals (Sweden)

    Teresa Cabruja-Ubach

    2014-12-01

    Full Text Available Se trata de una reseña de la “Guía para incorporar la perspectiva de género a la investigación en salud” de María del Mar García Calvente ,  María Luisa Jiménez rodrigo y Emilia Martínez Morante, de la Escuela Andaluza de Salud Pública, 2010, que consiste en un documento de ayuda a la investigación en salud pues a partir de exponer los sesgos androcéntricos y patriarcales de la investigación en salud, organiza un sistema de buenas prácticas para cada uno de los pasos en el proceso de investigación. Trabajo muy riguroso e indispensable para colaborar en una investigación y atención en la salud más justa e igualitaria.

  16. Impacto da escolaridade materna e paterna na perceção da imagem corporal em acadêmicos de Educação Física

    Directory of Open Access Journals (Sweden)

    Diego Augusto Santos Silva

    2012-06-01

    Full Text Available Objetivou-se verificar o impacto da escolaridade materna e paterna na perceção da imagem corporal em acadêmicos de Educação Física. Participaram do estudo 217 acadêmicos, com média de 20.6 anos de idade (DP = 0.6, sendo 54.8% do sexo masculino. Coletaram-se informações sobre perceção da imagem corporal por meio da escala de silhuetas de Stunkard et al. (1983. O nível de escolaridade dos pais e dados sociodemográficos foram coletados por questionário autoadministrado. Empregaram-se a estatística descritiva e a regressão logística multinomial, adotando-se nível de significância de 5%. Em relação à perceção da imagem corporal, 41% dos alunos estavam insatisfeitos por magreza e 28.1% por excesso de peso. As chances de insatisfação por excesso de peso foram de sete a oito vezes maiores nos acadêmicos com escolaridade materna superiores a quatro anos de escolaridade, independentemente de sexo, idade, situação conjugal, nível econômico e curso. Não houve associação entre escolaridade paterna e imagem corporal. Conclui-se que há necessidade de uma educação básica e superior de qualidade com assuntos vinculados à perceção corporal e hábitos saudáveis, pois muitos acadêmicos apresentaram insatisfação com a imagem corporal e tal probabilidade foi maior em estudantes filhos de mães com mais de cinco anos de escolaridade.

  17. The Literary Criticism and Memoirs of Juan Ramón Jiménez

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    Allen W. Phillips

    1983-01-01

    Full Text Available Equally as demanding of others as he was of himself, Juan Ramón Jiménez conceived of literary criticism as a serious and exacting task. The critic and the poet, standing side by side, are devoted to complementary activities of mutual enrichment. However fragmentary and partial the critical opinions of Juan Ramón may be (also outspoken and polemical in nature, they are invaluable as a personal historical and aesthetic guide to about fifty or sixty years of Hispanic literary development (1900-1960. Not to take them into account is to fail to recognize a highly important aspect of his total artistic personality. These varied critical texts are a product of a first rate intelligence and the sensibility of a writer of consummate discrimination who was endowed not only with an excellent memory but also a very special talent for appreciating the authentic. Juan Ramón as a critic is quick to praise (San Juan, Bécquer, Dario, Unamuno and Machado and at the same time strong in his censure of certain contemporaries. Several recently collected volumes of miscellaneous critical materials have resolved the bibliographical muddle for the initial study of this fundamental aspect of the poet, but still particularly important are the expressionistic portraits of Españoles de tres mundos , longer tributes to Valle, Ortega and Villaespesa as well as the extensive lectures delivered in his latter years. Examination of these pages gives us an historical and creative overview of the period in which he lived and worked in addition to original considerations about the evolution of Hispanic poetry. Of course, one of the constant focal points of his literary criticism was the modernist epoch of his early days, a movement or attitude which he considered to be a modern twentieth century renaissance. Together with detailed study of these two areas of historical and aesthetic nature, in the ensuing pages some conclusions are pointed out as to the essence of poetry

  18. An Adaptive Watershed Management Assessment Based on Watershed Investigation Data

    Science.gov (United States)

    Kang, Min Goo; Park, Seung Woo

    2015-05-01

    The aim of this study was to assess the states of watersheds in South Korea and to formulate new measures to improve identified inadequacies. The study focused on the watersheds of the Han River basin and adopted an adaptive watershed management framework. Using data collected during watershed investigation projects, we analyzed the management context of the study basin and identified weaknesses in water use management, flood management, and environmental and ecosystems management in the watersheds. In addition, we conducted an interview survey to obtain experts' opinions on the possible management of watersheds in the future. The results of the assessment show that effective management of the Han River basin requires adaptive watershed management, which includes stakeholders' participation and social learning. Urbanization was the key variable in watershed management of the study basin. The results provide strong guidance for future watershed management and suggest that nonstructural measures are preferred to improve the states of the watersheds and that consistent implementation of the measures can lead to successful watershed management. The results also reveal that governance is essential for adaptive watershed management in the study basin. A special ordinance is necessary to establish governance and aid social learning. Based on the findings, a management process is proposed to support new watershed management practices. The results will be of use to policy makers and practitioners who can implement the measures recommended here in the early stages of adaptive watershed management in the Han River basin. The measures can also be applied to other river basins.

  19. ¡AY PETRONITA, LA VIDA VALE LA PENA!: SEMBLANZA DE LA CANTADORA PETRONA MARTÍNEZ

    Directory of Open Access Journals (Sweden)

    Lizette Lemoine

    2013-01-01

    Full Text Available Este ejercicio biográfico se centra en el arte de la “cantaora” Petrona Martínez, “la reina del bullerengue”. La artista es vinculada con la tradición músical afrocolombiana del litoral Atlántico, y su canto es presentado como uno de los exclusivamente femeninos dentro de la música tradicional colombiana. A partir del relato del encuentro entre la artista y la autora del artículo, el texto se pregunta por ¿quién es Petrona Martínez? ¿Qué se sabe de ella? ¿Qué se cree de la artista? ¿Qué queremos ver en ella? Concluye con apuntes biográficos inspirados en las palabras y las canciones de la cantaora.

  20. Era Sanctorum: la beatificación inconclusa del padre Diego Martínez, SJ (1627-1634

    Directory of Open Access Journals (Sweden)

    Coello de la Rosa, Alexandre

    2009-06-01

    Full Text Available This essay analyzes the politics of sanctity of the Society of Jesus in Viceregal Peru (17th Century through the process of beatification of the Spanish Father Diego Martínez (1627-34. An unfinished process that has been filed in the Jesuit archives for centuries and was never introduced in the Sacred Congregation of Rites, in the Vatican.Este ensayo analiza las políticas de santidad de la Compañía de Jesús en el Perú virreinal (siglo XVII a través del proceso de beatificación del padre extremeño Diego Martínez (1627-34. Un proceso inconcluso que ha permanecido en los archivos jesuitas durante siglos y que nunca se introdujo en la Sagrada Congregación de Ritos, en el Vaticano.

  1. Ricardo Jiménez Oreamuno y una olvidada tradición de reforma electoral en Costa Rica

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    Iván Molina Jiménez

    2007-12-01

    Full Text Available This article analyzes the role played by the three times president of the republic, Ricardo Jiménez Oreamuno, in the reform of the Costa Rica’s electoral system. This process, fundamental in reinforcing the position of the electorate as opposed to the parties and the authorities of government, contributed to the democratization of Costa Rican politics between 1900 and 1940.//En este artículo, se analiza en papel jugado por el tres veces Presidente de la República, Ricardo Jiménez Oreamuno, en el impulso de la reforma del sistema electoral de Costa Rica. Este proceso, fundamental para reforzar la posición del electorado frente a los partidos y a las autoridades de gobierno, contribuyó a democratizar la política costarricense en las primeras cuatro décadas del siglo XX

  2. Stormwater Impaired Watersheds

    Data.gov (United States)

    Vermont Center for Geographic Information — Stormwater impaired watersheds occuring on both the Priority Waters (Part D - Completed TMDL) and 303(d) list of waters (Part A - need TMDL) The Vermont State...

  3. Watershed Restoration Project

    Energy Technology Data Exchange (ETDEWEB)

    Julie Thompson; Betsy Macfarlan

    2007-09-27

    In 2003, the U.S. Department of Energy issued the Eastern Nevada Landscape Coalition (ENLC) funding to implement ecological restoration in Gleason Creek and Smith Valley Watersheds. This project was made possible by congressionally directed funding that was provided through the US Department of Energy, Energy Efficiency and Renewable Energy, Office of the Biomass Program. The Ely District Bureau of Land Management (Ely BLM) manages these watersheds and considers them priority areas within the Ely BLM district. These three entities collaborated to address the issues and concerns of Gleason Creek and Smith Valley and prepared a restoration plan to improve the watersheds’ ecological health and resiliency. The restoration process began with watershed-scale vegetation assessments and state and transition models to focus on restoration sites. Design and implementation of restoration treatments ensued and were completed in January 2007. This report describes the restoration process ENLC undertook from planning to implementation of two watersheds in semi-arid Eastern Nevada.

  4. Watershed Planning Basins

    Data.gov (United States)

    Vermont Center for Geographic Information — The Watershed Planning Basin layer is part of a larger dataset contains administrative boundaries for Vermont's Agency of Natural Resources. The dataset includes...

  5. Texto y contexto en la obra de Jiménez de la Espada: un modelo interpretativo

    OpenAIRE

    López-ocón, Leoncio

    1992-01-01

    Se presentan los rasgos principales de las actividades científicas del viajero naturalista Marcos Jiménez de la Espada (1831-1898) siguiendo las propuestas metodológicas del modelo del rosetón de Bruno Latour y Xavier Polanco con las que se pretende mostrar los múltiples vínculos existentes entre las ideas de los científicos y el contexto social y cultural de esos actores humanos.

  6. Modeling the Potential Distribution of Picea chihuahuana Martínez, an Endangered Species at the Sierra Madre Occidental, Mexico

    OpenAIRE

    2015-01-01

    Species distribution models (SDMs) help identify areas for the development of populations or communities to prevent extinctions, especially in the face of the global environmental change. This study modeled the potential distribution of the tree Picea chihuahuana Martínez, a species in danger of extinction, using the maximum entropy modeling method (MaxEnt) at three scales: local, state and national. We used a total of 38 presence data from the Sierra Madre Occidental. At the local scale, we...

  7. Libertad e inconformismo: sobre la concepción del relato de José Jiménez Lozano

    Directory of Open Access Journals (Sweden)

    Moreno González, Santiago

    2010-12-01

    Full Text Available José Jiménez Lozano is a unique writer in the Hispanic literary scene of these last decades. His work is vast and diverse, and this initial observation does not escape his narrative, which genre the write demonstrates more prolifically. Despite the apparent diversity, there is outstanding unity underlying Jiménez Lozano´s entire work. This unity lies not only on the constant return to the same matters, but also on the approaches or the reasons, from which his literary work begins. The writer reflects over his work and lets his ideas expand through the diverse manifestations of his ideas on prose. It is a talk about the rhetorical writing of this article, valuing the coherent existence between reflection and literary practice.José Jiménez Lozano es un escritor singular dentro del panorama literario hispánico de las últimas décadas. Su obra es vasta y diversa y a esta observación inicial no escapa su narrativa, género en el que el escritor se muestra más prolífico. A pesar de la diversidad aparente, existe una notable unidad subyacente a toda la obra de Jiménez Lozano. Esta unidad reposa no sólo sobre el regreso constante a unos mismos asuntos sino también sobre los planteamientos o fundamentos de los que parte su creación literaria. El escritor reflexiona sobre su labor y deja diseminado, a través de las diversas manifestaciones de su prosa de ideas, un discurso sobre la escritura que este artículo sintetiza, valorando, asimismo, la coherencia existente entre esta reflexión y la praxis literaria.

  8. En memoria de Michael Jiménez (1948-2001

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    Mauricio Archila Neira

    2010-08-01

    Full Text Available El 1 de septiembre de 2001 murió el historiador Michael Jiménez. Su apellido provenía de España de donde emigró su abuelo en busca de mejor suerte al otro lado del Atlántico. Nacido en el pequeño pueblo de Merced, California (Estados Unidos en agosto de 1948 en el seno de una familia obrera, Michael vivió su infancia en Colombia. A fines de ese año, su padre se desplazó a estas tierras para ser funcionario de la Texas, una multinacional petrolera que tenía sus reales en Puerto Boyacá. Michael estudió en el colegio Nueva Granada -becado por la Texas- hasta los catorce años. En dicho colegio fue compañero de pupitre de Herbert Braun, descendiente a su vez de una familia de emigrantes a Colombia, y con quien la vida lo juntaría de nuevo en las tierras del norte y en oficios similares.

  9. Aída Martínez Carreño

    Directory of Open Access Journals (Sweden)

    Pablo Rodríguez Jiménez

    2010-10-01

    Full Text Available (Bucaramanga, 16 de abril de 1940 – Bogotá, 28 de mayo de 2009. Conocí a Aída Martínez en Medellín, en 1984, en una reunión académica organizada por la Cámara del Comercio. Y fue Germán Colmenares quien me la presentó en un descanso, mientras tomábamos un café. Recuerdo la manera como el maestro se refirió a su actividad al frente del Fondo Cultural Cafetero. En la conversación también se coló el valor que tenía el Museo del Siglo xix para la cultura de Bogotá, museo al que Aída le había dedicado tanto empeño. Pero, ahora que vuelvo a recordar ese encuentro, descubro que en ese momento algo que me sorprendió fue el conocimiento preciso de Aída sobre los hechos, obras y autores del siglo xix. Un siglo que aún entonces no estudiábamos mucho, y al que efectivamente el Fondo Cultural Cafetero dedicó célebres simposios, y auspició muchas de sus publicaciones.

  10. En memoria de Michael Jiménez (1948-2001

    Directory of Open Access Journals (Sweden)

    Mauricio Archila Neira

    2001-01-01

    Full Text Available El 1 de septiembre de 2001 murió el historiador Michael Jiménez. Su apellido provenía de España de donde emigró su abuelo en busca de mejor suerte al otro lado del Atlántico. Nacido en el pequeño pueblo de Merced, California (Estados Unidos en agosto de 1948 en el seno de una familia obrera, Michael vivió su infancia en Colombia. A fines de ese año, su padre se desplazó a estas tierras para ser funcionario de la Texas, una multinacional petrolera que tenía sus reales en Puerto Boyacá. Michael estudió en el colegio Nueva Granada -becado por la Texas- hasta los catorce años. En dicho colegio fue compañero de pupitre de Herbert Braun, descendiente a su vez de una familia de emigrantes a Colombia, y con quien la vida lo juntaría de nuevo en las tierras del norte y en oficios similares.

  11. A military officer in Rif: Jesús Jiménez Ortoneda (1911-1936

    Directory of Open Access Journals (Sweden)

    José Luis Villanova

    2009-08-01

    Full Text Available This paper uses original and for the most part unpublished documentation in order to examine the career of Jesús Jiménez Ortoneda, a highly successful career officer who served in the Spanish Protectorate of Morocco between 1907 and 1936. He occupied important positions in the political administration of the Protectorate (as director of the political section of Melilla’s Oficina Central de Intervenciones and a senior official in the Department of Indigenous Affairs; he was fluent in Arab and Tamazight, and gained a sound knowledge of the geography of the Rif mountains. His military career, in which he achieved the rank of lieutenant colonel, was characterized by his strictly professional attitude. He was one of the few career officers in Africa who were faithful to Spain’s republican government and who did not participate in the military uprising of 1936. This discussion of his career brings into question some well-established ideas concerning Spanish colonial policy in Morocco.

  12. Eduardo Martínez Alonso (1903-72): gallant surgeon who undertook special operations.

    Science.gov (United States)

    Coni, Nicholas

    2010-02-01

    Eduardo Martínez Alonso was of Spanish and Uruguyan extraction and was born in Vigo in Galicia in 1903. Due to his father's occupation, he was educated in the UK and qualified from the University of Liverpool. He returned to Madrid to practise and during the Civil War he found himself in the Republican zone where his connections with the Royal Family brought him under suspicion. Threatened with execution, he escaped to serve as a surgeon in the Nationalist Army. Being bilingual, he was medical adviser to the British Embassy during World War II; because of his allegiance to this country and acting from humanitarian motives, he became a ringleader in a plot to smuggle fugitives from Nazi-occupied Europe across a pro-Axis Spain to safety. When the Gestapo was closing in on him, he was smuggled to the UK via Portugal. He underwent training as a potential undercover agent should Franco take Spain into the war but, when hostilities ceased, he returned to Madrid and became a leading thoracic surgeon.

  13. Obituario. Académico Honorario Alejandro Jiménez Arango (1923-2013

    Directory of Open Access Journals (Sweden)

    Efraim Otero Ruiz

    2014-04-01

    Full Text Available Nacido en Bogotá en el hogar del Dr. Miguel Jiménez López (1875-1955, quien fuera no sólo uno de los más importantes Académicos del siglo XX sino senador y ministro de varias carteras, fundador de la cátedra de psiquiatría en la Universidad Nacional e iniciador de la medicina forense científica en el país. Estudió Medicina en la Universidad Nacional. Al iniciar sus estudios universitarios fue Monitor de Física Médica y de Fisiología; y en esta última cátedra (regentada por el Profesor Alfonso Esguerra Gómez obtuvo la Medalla de Fisiología en 1941. Se graduó de médico en 1946, con una tesis con Mención Honorífica (El sistema nervioso autónomo en patología mental y en la terapia de choque

  14. Realities of the Watershed Management Approach: The Magat Watershed Experience

    OpenAIRE

    Elazegui, Dulce D.; Combalicer, Edwin A.

    2004-01-01

    This paper aims to showcase the experience of the Magat watershed in the implementation of the watershed management approach. Magat watershed was declared as a forest-reservation area through Proclamation No. 573 on June 26, 1969 because of its great importance to human survival and environmental balance in the region. The Magat case demonstrates the important role that ‘champions’ like the local government unit (LGU) could play in managing the country’s watersheds. With the Nueva Viscaya pro...

  15. De mitos y realidades (respuesta a Luciano Martínez

    Directory of Open Access Journals (Sweden)

    José Luis Coraggio

    2009-10-01

    Full Text Available Este artículo constituye la respuesta del autor al comentario crítico realizado, en esta misma sección, por Luciano Martínez, en la pasada edición. El autor sostiene que la economía social y solidaria como un ámbito en construcción, que alberga a diversas vertientes que intentan avanzar hacia otra economía. Este carácter si bien puede albergar dudas, no debe transformase en un fatalismo inmovilizador, que permite la actualización constante del libre mercado como institución hegemónica. Antes que una utopía a denunciar desde una visión “realista”, se trata de construir una economía que combine mecanismos de mercado regulados socio-políticamente y relaciones de reciprocidad y redistribución. El texto explora, en pos de la argumentación, algunos de los elementos que conforman la economía social y solidaria.This article represents the author's response to critical commentary made in this section in the last edition by Luciano Martinez. The author maintains that the social and solidarity economy is a sphere under construction, in which several strands can be found. All of these approaches aim to move towards a different type of economy. This character as a developing realm can prompt doubts; this, however, should not lead to a paralyzing fatalism which allows the constant updating of the free market as a hegemonic institution. Far from a utopia to be denounced from a “realistic” viewpoint of economy, its concerns the construction of an economy that combines socio-politically regulated market mechanisms as well as relations of reciprocity and redistribution. The text also explores some of the elements that make up the solidarity and social economy.

  16. Juan Martínez Gutiérrez y la modernización de la arquitectura chilena

    OpenAIRE

    Campos Gajardo, Alicia

    2016-01-01

    La presente tesis para optar al grado de Doctor en la Escuela Técnica Superior de Arquitectura de la Universidad Politécnica de Madrid, aborda la obra del arquitecto de origen español Juan Martínez Gutiérrez, reconocido por la crítica especializada como uno de los precursores de la arquitectura moderna en Chile. A pesar de la relevancia de su obra, en la actualidad se carece de un estudio sistematizado y preciso que, de manera global, expongan los factores de modernidad de sus principales edi...

  17. Notas sobre «literatura asnal». Un curioso libro de Primo Feliciano Martínez (1)

    OpenAIRE

    2003-01-01

    En el último tercio del siglo XVIII vio la luz una curiosa obra burlesca, que se presentaba bajo el título de Memorias de la insigne Academia Asnal, por el Doctor de Ballesteros, tomo primero, en BiTonto, en la imprenta de Blas Antón, el año 3192 de la era asnal. Y se hallará en Bayona de Francia'. El seudónimo Doctor de Ballesteros encubre al escritor Primo Feliciano Martínez, creador de esta obra irónica relacionada con otras composiciones de la época, como la de 'Los eruditos a la violeta'...

  18. Designing for Watershed Inquiry

    Science.gov (United States)

    Bodzin, Alec; Shive, Louise

    2004-01-01

    In this article, we describe a collaborative design initiative with three secondary school teachers to promote the use of Web-based inquiry in the context of a watershed investigation. Design interviews that focus on instructional goals and pedagogical beliefs of classroom teachers were conducted. The interview protocol used a curricular framework…

  19. Watersheds in disordered media

    Directory of Open Access Journals (Sweden)

    José S. Andrade Jr.

    2015-02-01

    Full Text Available What is the best way to divide a rugged landscape? Since ancient times, watershedsseparating adjacent water systems that flow, for example, toward different seas, have beenused to delimit boundaries. Interestingly, serious and even tense border disputes betweencountries have relied on the subtle geometrical properties of these tortuous lines. For instance,slight and even anthropogenic modifications of landscapes can produce large changes in awatershed, and the effects can be highly nonlocal. Although the watershed concept arisesnaturally in geomorphology, where it plays a fundamental role in water management, landslide,and flood prevention, it also has important applications in seemingly unrelated fields suchas image processing and medicine. Despite the far-reaching consequences of the scalingproperties on watershed-related hydrological and political issues, it was only recently that a moreprofound and revealing connection has been disclosed between the concept of watershed andstatistical physics of disordered systems. This review initially surveys the origin and definition of awatershed line in a geomorphological framework to subsequently introduce its basic geometricaland physical properties. Results on statistical properties of watersheds obtained from artificialmodel landscapes generated with long-range correlations are presented and shown to be ingood qualitative and quantitative agreement with real landscapes.

  20. Watershed hydrology. Chapter 7.

    Science.gov (United States)

    Elons S. Verry; Kenneth N. Brooks; Dale S. Nichols; Dawn R. Ferris; Stephen D. Sebestyen

    2011-01-01

    Watershed hydrology is determined by the local climate, land use, and pathways of water flow. At the Marcell Experimental Forest (MEF), streamflow is dominated by spring runoff events driven by snowmelt and spring rains common to the strongly continental climate of northern Minnesota. Snowmelt and rainfall in early spring saturate both mineral and organic soils and...

  1. Fundamentals of watershed hydrology

    Science.gov (United States)

    Pamela J. Edwards; Karl W.J. Williard; Jon E. Schoonover

    2015-01-01

    This is a primer about hydrology, the science of water. Watersheds are the basic land unit for water resource management and their delineation, importance, and variation are explained and illustrated. The hydrologic cycle and its components (precipitation, evaporation, transpiration, soil water, groundwater, and streamflow) which collectively provide a foundation for...

  2. Allegheny County Watershed Boundaries

    Data.gov (United States)

    Allegheny County / City of Pittsburgh / Western PA Regional Data Center — This dataset demarcates the 52 isolated sub-Watersheds of Allegheny County that drain to single point on the main stem rivers. Created by 3 Rivers 2nd Nature based...

  3. Why interdisciplinary research enriches the study of crime. Comment on "Statistical physics of crime: A review" by M.R. D'Orsogna and M. Perc

    Science.gov (United States)

    Donnay, Karsten

    2015-03-01

    The past several years have seen a rapidly growing interest in the use of advanced quantitative methodologies and formalisms adapted from the natural sciences to study a broad range of social phenomena. The research field of computational social science [1,2], for example, uses digital artifacts of human online activity to cast a new light on social dynamics. Similarly, the studies reviewed by D'Orsogna and Perc showcase a diverse set of advanced quantitative techniques to study the dynamics of crime. Methods used range from partial differential equations and self-exciting point processes to agent-based models, evolutionary game theory and network science [3].

  4. FACETS OF THE ICONOGRAPHY OF DON JUAN MARTÍNEZ SILÍCEO, ARCHBISHOP OF TOLEDO = ALGUNOS ASPECTOS EN TORNO A LA ICONOGRAFÍA DEL ARZOBISPO DE TOLEDO DON JUAN MARTÍNEZ SILÍCEO

    Directory of Open Access Journals (Sweden)

    María Alegra García García

    2014-02-01

    Full Text Available Juan Martínez Siliceo (c. 1477-1557 was a Roman Catholic cardinal and archbishop and a distinguished humanist and mathematician who played an important role in the History and culture of Toledo and Spain during the 16th century. Furthermore, he was admired and recognized even after his death thanks to different literary sources and historiography. This article aims to approach his iconography through a selection of the most important literary and artistic sources from the 16th and 17th Centuries.Juan Martínez Silíceo (c.1477-1557, además de cardenal y arzobispo de Toledo, fue un importante humanista y matemático que desempeñó un destacado papel en la historia y cultura del Toledo y la España del siglo XVI y que gozó de gran admiración y reconocimiento más allá de su muerte, tal como evidencian las fuentes literarias y la historiografía posterior. Sin embargo, aún quedan pendientes de estudio pormenorizado algunos aspectos relativos a su relación con las artes. Este artículo pretende plantear un primer acercamiento a la iconografía de Silíceo a través de una selección de las fuentes literarias y visuales de los siglos XVI al XVIII consideradas más relevantes.

  5. Pastor, a los campos diles, villancico de Navidad de Mateo Romero y Jusepe Ximénez

    Directory of Open Access Journals (Sweden)

    González Marín, Luis Antonio

    2002-12-01

    Full Text Available This paper offers the edition of one tonada attributed to Mateo Romero (Maestro Capitán, master of the Royal Chapel in Madrid, and one responsión apparently added to the previous tonada by Jusepe Ximénez (organist at La Seo in Zaragoza. These two works shows an example of circulation of music attributed to prestigious composers, and gives testimony about the ability of the composers (appreciated by other authors when adapting and elaborating ('improving' their works.Este artículo presenta la edición de una tonada atribuida a Mateo Romero, alias Maestro Capitán, a la que, aparentemente, se añadió con posterioridad una responsión que la fuente musical atribuye al organista Jusepe Ximénez. Se trata, a la vez, de un ejemplo de circulación de obras de autores de gran prestigio y de su reutilización adaptada en lugares alejados al de su presunta producción, así como de una muestra del valor que en el siglo XVII español se otorgaba a la habilidad para adaptar, contrahacer o incluso "mejorar" obras musicales ajenas.

  6. “Todo lo que sigue es sencillamente estupendo”. Escritoras en las cartas de Ezequiel Martínez Estrada a Victoria Ocampo

    Directory of Open Access Journals (Sweden)

    Tania Diz

    2016-11-01

    Full Text Available While Ezequiel Martínez Estrada writes Marta Riquelme, between his fiction and essays, and Victoria Ocampo begins to write her memories; it arises from both an emotional and intellectual relationship through letters along more than 15 years since the late '40s and until the death of Martinez Estrada in 1964. This article will discuss much of those letters with the intended to show that one of the central axes of the epistolary is the construction by Martínez Estrada, his interlocutor in a character: writer women who acquire multiple identities including Marta Riquelme looks.

  7. Synthetic virus seeds for improved vaccine safety: Genetic reconstruction of poliovirus seeds for a PER.C6 cell based inactivated poliovirus vaccine.

    Science.gov (United States)

    Sanders, Barbara P; Edo-Matas, Diana; Papic, Natasa; Schuitemaker, Hanneke; Custers, Jerome H H V

    2015-10-13

    Safety of vaccines can be compromised by contamination with adventitious agents. One potential source of adventitious agents is a vaccine seed, typically derived from historic clinical isolates with poorly defined origins. Here we generated synthetic poliovirus seeds derived from chemically synthesized DNA plasmids encoding the sequence of wild-type poliovirus strains used in marketed inactivated poliovirus vaccines. The synthetic strains were phenotypically identical to wild-type polioviruses as shown by equivalent infectious titers in culture supernatant and antigenic content, even when infection cultures are scaled up to 10-25L bioreactors. Moreover, the synthetic seeds were genetically stable upon extended passaging on the PER.C6 cell culture platform. Use of synthetic seeds produced on the serum-free PER.C6 cell platform ensures a perfectly documented seed history and maximum control over starting materials. It provides an opportunity to maximize vaccine safety which increases the prospect of a vaccine end product that is free from adventitious agents.

  8. Watershed based intelligent scissors.

    Science.gov (United States)

    Wieclawek, W; Pietka, E

    2015-07-01

    Watershed based modification of intelligent scissors has been developed. This approach requires a preprocessing phase with anisotropic diffusion to reduce subtle edges. Then, the watershed transform enhances the corridors. Finally, a roaming procedure, developed in this study, delineates the edge selected by a user. Due to a very restrictive set of pixels, subjected to the analysis, this approach significantly reduces the computational complexity. Moreover, the accuracy of the algorithm performance makes often one click point to be sufficient for one edge delineation. The method has been evaluated on structures as different in shape and appearance as the retina layers in OCT exams, chest and abdomen in CT and knee in MR studies. The accuracy is comparable with the traditional Life-Wire approach, whereas the analysis time decreases due to the reduction of the user interaction and number of pixels processed by the method.

  9. Ghana Watershed Prototype Products

    Science.gov (United States)

    ,

    2007-01-01

    Introduction/Background A number of satellite data sets are available through the U.S. Geological Survey (USGS) for monitoring land surface features. Representative data sets include Landsat, Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and Shuttle Radar Topography Mission (SRTM). The Ghana Watershed Prototype Products cover an area within southern Ghana, Africa, and include examples of the aforementioned data sets along with sample SRTM derivative data sets.

  10. Watershed councils: it takes a community to restore a watershed

    Science.gov (United States)

    Marie Oliver; Rebecca Flitcroft

    2011-01-01

    Regulation alone cannot solve complex ecological problems on private lands that are managed for diverse uses. Executing coordinated restoration projects at the watershed scale is only possible with the cooperation and commitment of all stakeholders. Locally organized, nonregulatory watershed councils have proven to be a powerful method of engaging citizens from all...

  11. Inventario de bienes de Juan Martínez, escribano público de Jerez de la Frontera en la primera mitad del siglo XV

    Directory of Open Access Journals (Sweden)

    M.ª Belén Piqueras García

    2013-12-01

    Full Text Available The present study is centered in the analysis of the Inventory of valuable objects of Juan Martínez, Jerez de la Frontera notary public during the first half of 15th century; Persecuting to bring to light this document from notarial type, until now unpublished, that approached its content and diplomatic analysis.

  12. Small parts: Crisóstomo Martínez (1638-1694), bone histology, and the visual making of body wholeness.

    Science.gov (United States)

    Valverde, Nuria

    2009-09-01

    The Valencian engraver Crisóstomo Martínez (ca. 1638-1694) arrived in Paris in July 1687, commissioned to create an anatomical atlas. Impressed by Govard Bidloo's Anatomia humani corporis (1685), Martínez decided to make a comparable work on osteology. His unpublished atlas of anatomy was exceptional in its choice of topic, its quality, and its overall visual approach. Martínez's work revolves around the dissolving effects of microscopic study on the traditional understanding of the connections between parts and whole. Underlying his investigation into the most effective composition of an anatomical atlas was the idea of the self-organizing and complex nature of the body as itself a composition, an idea rooted in the way observation and judgment, the seen and the unseen, and notions about collections and communities were connected in the vanitas culture. This essay explores the links between Martínez's work and the cultures of a time in which observation and interpretation of the processes of death, decay, and fragmentation played a primary role in defining a common human nature around which notions of destiny could be articulated.

  13. 'MARTÍNEZ', UN CLON DE AJO (Allium sativum L. CON BUEN COMPORTAMIENTO ANTE LAS ENFERMEDADES Y ALTO POTENCIAL DE RENDIMIENTO

    Directory of Open Access Journals (Sweden)

    H. Izquierdo

    2005-01-01

    Full Text Available Se presentan las principales características del clon 'Martínez', saneado y rejuvenecido mediante la técnica de cultivo de meristemos. Este clon mostró un buen comportamiento ante las principales plagas y enfermedades que afectan a este cultivo y la calidad de la semilla, así como un elevado potencial de rendimiento.

  14. Crenças Erróneas e Perceção da Doença em Pacientes Cardíacos e Seus Cônjuges: Um Estudo Piloto

    Directory of Open Access Journals (Sweden)

    Maria João Figueiras

    2012-11-01

    Full Text Available Objetivo: O presente estudo de caráter exploratório procurou caraterizar e comparar as perceções de doença e as crenças erróneas sobre a doença cardíaca em pacientes portugueses e nos seus cônjuges. Método: A amostra foi composta por 46 pacientes com doença cardíaca e 32 cônjuges. Foi utilizada uma metodologia combinada (qualitativa e quantitativa, com recurso a instrumentos de autorrelato e, no caso das perceções de doença dos pacientes, também a desenhos do coração. Resultados: Verificou-se que as perceções de doença do paciente diferem consoante o sexo, a idade e a situação profissional e estão relacionadas com traços de personalidade. Os cônjuges dos pacientes parecem reportar níveis mais elevados de preocupação com a doença. A análise dos desenhos efetuados pelos pacientes sugere ainda que a altura e a área dos mesmos podem estar associadas com dimensões específicas das perceções de doença. Conclusão: Em termos gerais consideramos que o presente estudo contribui de forma modesta mas significativa para descrever o tipo de crenças erróneas sobre as doenças de coração dos pacientes e cônjuges, assim como para analisar de que forma a perceção da doença influencia outras crenças relacionadas com diferentes aspetos da fase de ajustamento e gestão da doença.

  15. Francisco Martínez de la Rosa and church-state controversial relation in Spain (1834-1835

    Directory of Open Access Journals (Sweden)

    María José Vilar García

    2016-12-01

    Full Text Available This study aims to provide and analyze Francisco Martínez de la Rosa’s unpublished correspondence during his term as President of the Spanish Government in the 1834-1835 biennium, maintained with Amat di San Filippo Luigi, nuncio in Spain, and kept in the Vatican Secret Archives. Such correspondence consists of three letters with official mail format, although they could be considered rather confidential for their content. In these documents, the Spanish government strives, albeit unsuccessfully, to achieve recognition by Rome of Elizabeth II of Spain and his liberal regime. And last but not least, in this paper, it is also noteworthy to highlight the urgent need to fill the many vacant Dioceses in Spain.

  16. El filólogo Pedro Martínez López: un libelista liberal imaginativo

    OpenAIRE

    Vauchelle-Haquet, Aline

    2006-01-01

    En 1830, el filólogo Pedro Martínez López tuvo que exiliarse a Francia por motivos políticos. En 1832, sacó a luz en Burdeos una Representación a Fernando VII, rey de España, panfleto en el que espetaba toda una sarta de acusaciones contra el tirano. A finales del año siguiente, publicó La España en 1833, al expirar Fernando VII, otro libelo en que responsabilizaba al despotismo de la desastrosa situación de su país y afirmaba que sólo se podrían remediar tantos atropellos e ...

  17. Mitos prehispánicos en algunos cuentos nahuas de Doña Luz Jiménez

    OpenAIRE

    Rodríguez Carretero, Mª Ángeles

    2014-01-01

    Pasado y presente se mezclan en la literatura nahua contemporánea. La mitología prehispánica está presente en muchos de los cuentos nahuas que relata Doña Luz Jiménez. Son resultado de la fusión entre tradición prehispánica y colonial, donde se recogen valores y creencias ancestrales todavía en uso en las regiones actuales. Los ritos más íntimamente ligados a la vida y a los campesinos sobrevivieron, fueron reinterpretados simbólicamente después de la conquista y se han articulado con la reli...

  18. SPECIFIC DEGRADATION OF WATERSHEDS

    Institute of Scientific and Technical Information of China (English)

    Boubacar KANE; Pierre Y.JULIEN

    2007-01-01

    An extensive database of reservoir sedimentation surveys throughout continental United States is compiled and analyzed to determine specific degradation SD relationships as function of mean annual rainfall R, drainage area A, and watershed slope S. The database contains 1463 field measurements and specific degradation relationships are defined as function of A, R and S. Weak trends and significant variability in the data are noticeable. Specific degradation measurements are log normally distributed with respect to R, A, and S and 95% confidence intervals are determined accordingly. The accuracy of the predictions does not significantly increase as more independent variables are added to the regression analyses.

  19. Big Canyon Creek Ecological Restoration Strategy.

    Energy Technology Data Exchange (ETDEWEB)

    Rasmussen, Lynn; Richardson, Shannon

    2007-10-01

    He-yey, Nez Perce for steelhead or rainbow trout (Oncorhynchus mykiss), are a culturally and ecologically significant resource within the Big Canyon Creek watershed; they are also part of the federally listed Snake River Basin Steelhead DPS. The majority of the Big Canyon Creek drainage is considered critical habitat for that DPS as well as for the federally listed Snake River fall chinook (Oncorhynchus tshawytscha) ESU. The Nez Perce Soil and Water Conservation District (District) and the Nez Perce Tribe Department of Fisheries Resources Management-Watershed (Tribe), in an effort to support the continued existence of these and other aquatic species, have developed this document to direct funding toward priority restoration projects in priority areas for the Big Canyon Creek watershed. In order to achieve this, the District and the Tribe: (1) Developed a working group and technical team composed of managers from a variety of stakeholders within the basin; (2) Established geographically distinct sub-watershed areas called Assessment Units (AUs); (3) Created a prioritization framework for the AUs and prioritized them; and (4) Developed treatment strategies to utilize within the prioritized AUs. Assessment Units were delineated by significant shifts in sampled juvenile O. mykiss (steelhead/rainbow trout) densities, which were found to fall at fish passage barriers. The prioritization framework considered four aspects critical to determining the relative importance of performing restoration in a certain area: density of critical fish species, physical condition of the AU, water quantity, and water quality. It was established, through vigorous data analysis within these four areas, that the geographic priority areas for restoration within the Big Canyon Creek watershed are Big Canyon Creek from stream km 45.5 to the headwaters, Little Canyon from km 15 to 30, the mainstem corridors of Big Canyon (mouth to 7km) and Little Canyon (mouth to 7km). The District and the Tribe

  20. Genetic analyses of Per.C6 cell clones producing a therapeutic monoclonal antibody regarding productivity and long-term stability.

    Science.gov (United States)

    Tsuruta, Lilian Rumi; Lopes Dos Santos, Mariana; Yeda, Fernanda Perez; Okamoto, Oswaldo Keith; Moro, Ana Maria

    2016-12-01

    Genetic characterization of protein-producing clones represents additional value to cell line development. In the present study, ten Per.C6 clones producing a Rebmab100 monoclonal antibody were selected using two cloning methods: six clones originated from limiting dilution cloning and four by the automated colony picker ClonePix FL. A stability program was performed for 50 generations, including 4 batches distributed along the timeframe to determine specific productivity (Qp) maintenance. Four stable clones (two from limiting dilution and two from ClonePix FL) were further evaluated. The relative mRNA expression levels of both heavy chain (HC) and light chain (LC) genes were verified at generations 0, 30-35, and 50-55 of the stability program. At generations 0 and 30-35, LC gene expression level was higher than HC gene, whereas at generation 50-55, the opposite prevailed. A high correlation was observed between Qp and HC or LC mRNA expression level for all clones at each generation analyzed along the continuous culture. The mRNA stability study was performed at steady-state culture. The LC gene displayed a higher half-life and lower decay constant than HC gene, accounting for the higher observed expression level of LC mRNA in comparison to HC mRNA. Clone R6 was highlighted due its high Qp, mRNA expression levels, and mRNA stability. Besides the benefits of applying genetic characterization for the selection of stable and high-producing clones, the present study shows for the first time the correlation between Qp and HC or LC expression levels and also mRNA stability in clones derived from human cell line Per.C6(®).

  1. CERT tribal internship program. Final intern report: D`Lisa Penney, 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-09-01

    The purpose of this intern`s project was to: education the Nez Perce people of the Hanford situation; begin researching into past and present health effects from the Hanford site; and inform and educate the Nez Perce people of the Hanford site and past exposures. The specific objectives were to begin researching the history of Nez Perce people and Hanford; create an understanding for the importance of this research; define the radiation and risks and how they occur; inform the Nez Perce people of the issue; and write the paper so it is easy to understand. This intern report contains a copy of the final paper written for the Nez Perce people. Because the dose reconstruction for Hanford is not complete, the health effects section is informative, but not definitive.

  2. Watershed Boundaries - MO 2015 Metro No Discharge Watersheds (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This feature class contains watersheds associated with Missouri's use designations for streams listed in Table F - Metropolitan No-Discharge Streams of the Water...

  3. La aportación de José Jiménez Lozano al nacimiento de Las Edades del Hombre

    Directory of Open Access Journals (Sweden)

    Merino Bobillo, María

    2015-04-01

    Full Text Available José Jiménez Lozano played an essential role in the birth of the Las Edades del Hombre (the Ages of Man exhibition both through his friendship with José Velicia, the exhibition’s creator, and his profound and detailed knowledge of the art and culture that shaped the exhibition series. This contribution can be documented by tracking his publications prior to the project and through interviews with some of the people involved in setting it up. Particular emphasis is given here to an unpublished document that served as a presentation and shows clearly Jiménez Lozano’s particular style. The structure of the results is narrated taking José Jiménez Lozano’s words from his writings or lectures, or studies on him as anchor points. His writing allows us to delve into the keys that have made these exhibitions a great cultural reference.José Jiménez Lozano desempeñó un papel esencial en el nacimiento de Las Edades del Hombre tanto por su amistad con José Velicia, su creador, como por la hondura y particularidad de sus conocimientos sobre el arte y la cultura que marcaron la personalidad del ciclo de exposiciones. Podemos documentar dicha aportación a través del rastreo de sus publicaciones anteriores al proyecto y de las entrevistas con algunas de las personas que colaboraron en su puesta en marcha. Haremos especial hincapié en un documento inédito que sirvió de presentación del mismo y en el que se descubre la mano de Jiménez Lozano. La estructura de los resultados obtenidos se relata tomando como puntos de anclaje las palabras de José Jiménez Lozano, ya sea en sus escritos, conferencias, o estudios realizados sobre él. Su escritura nos permite profundizar en las claves que han hecho de unas exposiciones un referente cultural.

  4. Evaluating Hydrologic Response of an Agricultural Watershed for Watershed Analysis

    Directory of Open Access Journals (Sweden)

    Manoj Kumar Jha

    2011-06-01

    Full Text Available This paper describes the hydrological assessment of an agricultural watershed in the Midwestern United States through the use of a watershed scale hydrologic model. The Soil and Water Assessment Tool (SWAT model was applied to the Maquoketa River watershed, located in northeast Iowa, draining an agriculture intensive area of about 5,000 km2. The inputs to the model were obtained from the Environmental Protection Agency’s geographic information/database system called Better Assessment Science Integrating Point and Nonpoint Sources (BASINS. Meteorological input, including precipitation and temperature from six weather stations located in and around the watershed, and measured streamflow data at the watershed outlet, were used in the simulation. A sensitivity analysis was performed using an influence coefficient method to evaluate surface runoff and baseflow variations in response to changes in model input hydrologic parameters. The curve number, evaporation compensation factor, and soil available water capacity were found to be the most sensitive parameters among eight selected parameters. Model calibration, facilitated by the sensitivity analysis, was performed for the period 1988 through 1993, and validation was performed for 1982 through 1987. The model was found to explain at least 86% and 69% of the variability in the measured streamflow data for calibration and validation periods, respectively. This initial hydrologic assessment will facilitate future modeling applications using SWAT to the Maquoketa River watershed for various watershed analyses, including watershed assessment for water quality management, such as total maximum daily loads, impacts of land use and climate change, and impacts of alternate management practices.

  5. Asotin Creek Model Watershed Plan

    Energy Technology Data Exchange (ETDEWEB)

    Browne, D.; Holzmiller, J.; Koch, F.; Polumsky, S.; Schlee, D.; Thiessen, G.; Johnson, C.

    1995-04-01

    The Asotin Creek Model Watershed Plan is the first to be developed in Washington State which is specifically concerned with habitat protection and restoration for salmon and trout. The plan is consistent with the habitat element of the ``Strategy for Salmon``. Asotin Creek is similar in many ways to other salmon-bearing streams in the Snake River system. Its watershed has been significantly impacted by human activities and catastrophic natural events, such as floods and droughts. It supports only remnant salmon and trout populations compared to earlier years. It will require protection and restoration of its fish habitat and riparian corridor in order to increase its salmonid productivity. The watershed coordinator for the Asotin County Conservation District led a locally based process that combined local concerns and knowledge with technology from several agencies to produce the Asotin Creek Model Watershed Plan.

  6. Literatura y realidad histórica. Un reencuentro con Ezequiel Martínez Estrada y su interpretación del Martín Fierro

    Directory of Open Access Journals (Sweden)

    Amán Rosales Rodríguez

    2010-01-01

    Full Text Available The purpose of this paper is to critically review some of the main theoretical tenets in Ezequiel Martínez Estrada’s pessimistic stance about the Argentinean history and society of his time. Focusing on his critical remarks about the so-called «literatura o poesía gauchesca» as well as on his enthusiastic assessment of José Hernández’ Martín Fierro, the achievements and missing points in Martínez Estrada’s skeptical diagnosis will be underlined and put in broader philosophical context. For the Argentinean writer the controversial notion of a “superimposed reality” – as he infers its existence from the Martín Fierro – captures a kind of ambivalent metaphysical concurrence among the literary creation, the geographical setting and the sociopolitical state of the country.

  7. Grandezas y flaquezas del Mariscal Gonzalo Jiménez de Quesada en la conquista y colonización del pueblo chibcha

    Directory of Open Access Journals (Sweden)

    Guillermo Hernández Rodríguez

    1979-03-01

    Full Text Available Los conferenciantes que hemos escuchado esta semana conmemorativa del fallecimiento del Adelantado Gonzalo Jiménez de Quesada hace 400 años, comenzando por el Profesor Juan Friede, han hecho unos valiosos Aportes para destacar su personalidad, en la conquista de esta parte del continente y en la organización dada en los primero años de la Colonia.

  8. Aída Martínez y Silvia Galvis:Del documento al relato y de la ficción a la historia

    Directory of Open Access Journals (Sweden)

    Helena Araújo

    2006-01-01

    Full Text Available colombianas, la historiadora Aída Martínez y la novelista Silvia Galvis,a partir de los vínculos entre ficción e historia. Se parte de los planteamientosde Gérard Genette, quien considera que si los índices de"ficcionalidad" están también presentes en el

  9. Who defines indigenous? Identities, development, intellectuals and the state in Northern Mexico (Carmen Martínez Novo

    Directory of Open Access Journals (Sweden)

    Arantza Meñaca

    2006-05-01

    Full Text Available El libro de Carmen Martínez Novo, profesora de FLACSO-Ecuador (Facultad Latinoamericana de Ciencias Sociales es una etnografía sobre la construcción de la identidad de los indios mixtecos en el norte de México. Ahora bien, no se trata de una aportación convencional sino crítica, que se diferencia de los trabajos tradicionales en dos sentidos. Por una parte, en los actores en quienes centra su estudio. La autora, en un ejercicio de “studying up”, en lugar de realizar su observación participante principalmente con los indígenas, se mueve entre las elites, las clases medias, los intelectuales, los políticos, la prensa, y las organizaciones no gubernamentales, y es su papel en el proceso de construcción de lo indígena el que le interesa. Y por otra, en sus planteamientos teóricos y conclusiones, que permiten cuestionar hasta qué punto es, la identidad étnica, fundamentalmente una herramienta de resistencia y presión política en manos de las comunidades indígenas, o bien, una construcción desde los sectores en el poder para justificar y reproducir las jerarquías existentes.

  10. Modeling the Potential Distribution of Picea chihuahuana Martínez, an Endangered Species at the Sierra Madre Occidental, Mexico

    Directory of Open Access Journals (Sweden)

    Victor Aguilar-Soto

    2015-03-01

    Full Text Available Species distribution models (SDMs help identify areas for the development of populations or communities to prevent extinctions, especially in the face of the global environmental change. This study modeled the potential distribution of the tree Picea chihuahuana Martínez, a species in danger of extinction, using the maximum entropy modeling method (MaxEnt at three scales: local, state and national. We used a total of 38 presence data from the Sierra Madre Occidental. At the local scale, we compared MaxEnt with the reclassification and overlay method integrated in a geographic information system. MaxEnt generated maps with a high predictive capability (AUC > 0.97. The distribution of P. chihuahuana is defined by vegetation type and minimum temperature at national and state scales. At the local scale, both models calculated similar areas for the potential distribution of the species; the variables that better defined the species distribution were vegetation type, aspect and distance to water flows. Populations of P. chihuahuana have always been small, but our results show potential habitat greater than the area of the actual distribution. These results provide an insight into the availability of areas suitable for the species’ regeneration, possibly through assisted colonization.

  11. Watershed health assessment to monitor land degradation

    Science.gov (United States)

    Hamidreza Sadeghi, Seyed; Hazbavi, Zeinab; Cerdà, Artemi

    2017-04-01

    ). References Cerdà, A., A. G. Morera, and M. B. Bodí. 2009. Soil and Water Losses from New Citrus Orchards Growing on Sloped Soils in the Western Mediterranean Basin. Earth Surface Processes and Landforms 34 (13): 1822-1830. doi:10.1002/esp.1889. Cerdà, A., González-Pelayo, O., Giménez-Morera, A., Jordán, A., Pereira, P., Novara, A., Brevik, E.C., Prosdocimi, M., Mahmoodabadi, M., Keesstra, S., García Orenes, F., Ritsema, C., 2016. The use of barley straw residues to avoid high erosion and runoff rates on persimmon plantations in Eastern Spain under low frequency - high magnitude simulated rainfall events. Soil Res, 54, 2, 154-165 DOI: 10.1071/SR15092 Choudhury, B. U., A. R. Fiyaz, K. P. Mohapatra, and S. Ngachan. 2016. Impact of Land Uses, Agrophysical Variables and Altitudinal Gradient on Soil Organic Carbon Concentration of North-Eastern Himalayan Region of India. Land Degradation and Development 27 (4): 1163-1174. doi:10.1002/ldr.2338. Davudirad, A. A., S. H. Sadeghi, and A. Sadoddin. 2016. The Impact of Development Plans on Hydrological Changes in the Shazand Watershed, Iran. Land Degradation and Development 27 (4): 1236-1244. doi:10.1002/ldr.2523. Fava, F., G. Pulighe, and A. T. Monteiro. 2016. Mapping Changes in Land Cover Composition and Pattern for Comparing Mediterranean Rangeland Restoration Alternatives. Land Degradation and Development 27 (3): 671-681. doi:10.1002/ldr.2456. Fernández-Romero, M. L., B. Lozano-García, L. Parras-Alcántara, C. D. Collins, and J. M. Clark. 2016. Effects of Land Management on Different Forms of Soil Carbon in Olive Groves in Mediterranean Areas. Land Degradation and Development 27 (4): 1186-1195. doi:10.1002/ldr.2327. Ferreira, A. C. C., L. F. C. Leite, A. S. F. de Araújo, and N. Eisenhauer. 2016. Land-use Type Effects on Soil Organic Carbon and Microbial Properties in a Semi-Arid Region of Northeast Brazil. Land Degradation and Development 27 (2): 171-178. doi:10.1002/ldr.2282. Gómez-Acata, E. S., I. Valencia-Becerril, C

  12. Watershed management and the web

    Energy Technology Data Exchange (ETDEWEB)

    Voinov, A.; Costanza, R. [Univ. of Maryland, Solomons, MD (United States). Inst. for Ecological Economics

    1999-08-01

    Watershed analysis and watershed management are developing as tools of integrated ecological and economic study. They also assist decision-making at the regional scale. The new technology and thinking offered by the advent of the Internet and the World Wide Web is highly complementary to some of the goals of watershed analysis. Services delivered by the Web are open, interactive, gas, spatially distributed, hierarchical and flexible. The Web offers the ability to display information creatively, to interact with that information and to change and modify it remotely. In this way the Internet provides a much-needed opportunity to deliver scientific findings and information to stakeholders and to link stakeholders together providing for collective decision=making. The benefits fall into two major categories: methological and educational. Methodologically the approach furthers the watershed management concept, offering an avenue for practical implementation of watershed management principles. For educational purposes the Web is a source of data and insight serving a variety of needs at all levels.

  13. The Watershed Algorithm for Image Segmentation

    Institute of Scientific and Technical Information of China (English)

    OU Yan; LIN Nan

    2007-01-01

    This article introduced the watershed algorithm for the segmentation, illustrated the segmation process by implementing this algorithm. By comparing with another three related algorithm, this article revealed both the advantages and drawbacks of the watershed algorithm.

  14. DNR Watersheds - DNR Level 02 - HUC 04

    Data.gov (United States)

    Minnesota Department of Natural Resources — These data consists of watershed delineations in one seamless dataset of drainage areas called Minnesota Department of Natural Resources (DNR) Level 02 Watersheds....

  15. NYC Reservoirs Watershed Areas (HUC 12)

    Data.gov (United States)

    U.S. Environmental Protection Agency — This NYC Reservoirs Watershed Areas (HUC 12) GIS layer was derived from the 12-Digit National Watershed Boundary Database (WBD) at 1:24,000 for EPA Region 2 and...

  16. Grays River Watershed Geomorphic Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Geist, David R

    2005-04-30

    This investigation, completed for the Pacific Northwest National Laboratory (PNNL), is part of the Grays River Watershed and Biological Assessment commissioned by Bonneville Power Administration under project number 2003-013-00 to assess impacts on salmon habitat in the upper Grays River watershed and present recommendations for habitat improvement. This report presents the findings of the geomorphic assessment and is intended to support the overall PNNL project by evaluating the following: The effects of historical and current land use practices on erosion and sedimentation within the channel network The ways in which these effects have influenced the sediment budget of the upper watershed The resulting responses in the main stem Grays River upstream of State Highway 4 The past and future implications for salmon habitat.

  17. Watershed Education for Broadcast Meteorologists

    Science.gov (United States)

    Lamos, J. P.; Sliter, D.; Espinoza, S.; Spangler, T. C.

    2006-12-01

    The National Environmental Education and Training Organization (NEETF) published a report in 2005 that summarized the findings of ten years of NEETF and Roper Research. The report stated, "Our years of data from Roper surveys show a persistent pattern of environmental ignorance even among the most educated and influential members of society." Market research has also shown that 80% of television viewers list the weather as the primary reason for watching the local news. Broadcast meteorologists, with a broader understanding of environmental and related sciences have an opportunity to use their weathercasts to inform the public about the environment and the factors that influence environmental health. As "station scientists," broadcast meteorologists can use the weather, and people's connection to it, to broaden their understanding of the environment they live in. Weather and watershed conditions associated with flooding and drought have major human and environmental impacts. Increasing the awareness of the general public about basic aspects of the hydrologic landscape can be an important part of mitigating the adverse effects of too much or too little precipitation, and of protecting the environment as well. The concept of a watershed as a person's natural neighborhood is a very important one for understanding hydrologic and environmental issues. Everyone lives in a watershed, and the health of a watershed is the result of the interplay between weather and human activity. This paper describes an online course to give broadcast meteorologists a basic understanding of watersheds and how watersheds are impacted by weather. It discusses how to convey watershed science to a media- savvy audience as well as how to model the communication of watershed and hydrologic concepts to the public. The course uses a narrative, story-like style to present its content. It is organized into six short units of instruction, each approximately 20 minutes in duration. Each unit is

  18. Multiagent distributed watershed management

    Science.gov (United States)

    Giuliani, M.; Castelletti, A.; Amigoni, F.; Cai, X.

    2012-04-01

    Deregulation and democratization of water along with increasing environmental awareness are challenging integrated water resources planning and management worldwide. The traditional centralized approach to water management, as described in much of water resources literature, is often unfeasible in most of the modern social and institutional contexts. Thus it should be reconsidered from a more realistic and distributed perspective, in order to account for the presence of multiple and often independent Decision Makers (DMs) and many conflicting stakeholders. Game theory based approaches are often used to study these situations of conflict (Madani, 2010), but they are limited to a descriptive perspective. Multiagent systems (see Wooldridge, 2009), instead, seem to be a more suitable paradigm because they naturally allow to represent a set of self-interested agents (DMs and/or stakeholders) acting in a distributed decision process at the agent level, resulting in a promising compromise alternative between the ideal centralized solution and the actual uncoordinated practices. Casting a water management problem in a multiagent framework allows to exploit the techniques and methods that are already available in this field for solving distributed optimization problems. In particular, in Distributed Constraint Satisfaction Problems (DCSP, see Yokoo et al., 2000), each agent controls some variables according to his own utility function but has to satisfy inter-agent constraints; while in Distributed Constraint Optimization Problems (DCOP, see Modi et al., 2005), the problem is generalized by introducing a global objective function to be optimized that requires a coordination mechanism between the agents. In this work, we apply a DCSP-DCOP based approach to model a steady state hypothetical watershed management problem (Yang et al., 2009), involving several active human agents (i.e. agents who make decisions) and reactive ecological agents (i.e. agents representing

  19. La historieta como transmisora de ideología: España Una, Grande y Libre (Carlos Giménez = Comic-strip in transmitting ideology: España Una, Grande y Libre (Carlos Giménez

    Directory of Open Access Journals (Sweden)

    Armiche Carrillo Delgado

    2015-06-01

    Full Text Available Aunque tradicionalmente se consideró a los cómics como un simple entretenimiento juvenil, lo cierto es que en realidad constituyen una herramienta para la transmisión de concepciones ideológicas y valores. A través del análisis de la obra de Carlos Giménez, publicada en El Papus, veremos como la historieta es perfectamente capaz de convertirse en una forma de lucha ideológica.Although traditionally considered to comics as a mere youth entertainment, the truth is that actually constitute a tool for the transmission of values and ideological concepts. Through the analysis of the work of Carlos Giménez, published in El Papus, we see how the comic-strip is perfectly capable of becoming a form of ideological struggle.

  20. Compte rendu de l’ouvrage d’Ana Martínez Rus, «San León Librero» : las empresas culturales de Sánchez Cuesta Reseña de Ana Martínez Rus, «San León Librero» : las empresas culturales de Sánchez Cuesta

    Directory of Open Access Journals (Sweden)

    Philippe Castellano

    2009-01-01

    Full Text Available La editorial TREA ha publicado recientemente un estudio de Ana Martínez Rus, «San León Librero»: las empresas culturales de Sánchez Cuesta, que constituye la lógica prolongación de una densa producción de artículos y libros 1 que se interesan por la historia de la edición y de la lectura en la España contemporánea. Para esta última obra, A. Martínez Rus ha trabajado sobre el archivo del librero madrileño León Sánchez Cuesta conservado en la Residencia de Estudiantes.

  1. Lugar común la muerte, de Tomás Eloy Martínez: una invención a manera de la realidad Tomás Eloy Martínez's Lugar común la muerte: Invention as Reality

    Directory of Open Access Journals (Sweden)

    Marcelo Coddou

    2010-07-01

    Full Text Available Este ensayo intenta estudiar la índole de periodismo narrativo que constituyen las crónicas que conforman el libro Lugar común la muerte del escritor argentino Tomás Eloy Martínez (1934-2010. Se discute la oposición verdad/documento vs. verosimilitud/imaginación, para mostrar cómo los escritos periodísticos de este libro se inscriben en una modalidad genérica que, habiendo nacido en América Latina durante la vigencia del Modernismo, ha continuado dando muestras notables hasta nuestros días. Se analizan algunas de las estrategias narrativas que el periodista Tomás Eloy Martínez empleara en textos que, publicados originalmente en diarios de Caracas y Buenos Aires, fueron leídos como tales, como escritos periodísticos. Para ello se revisan cuidadosamente algunos de los principales postulados teóricos que formulara al respecto el propio escritor-periodista autor del libro aquí considerado.The following essay will present an analysis of creative nonfiction from the chronicles gathered in Lugar común la muerte written by Argentinean writer Tomás Eloy Martínez (1934 - 2010. The essay will discuss the opposition between truth/document versus credibility/imagination, so as to portray how journalistic writing is inscribed in a generic form that was conceived under the rules of Latin-American Modernism; form that still prevails until nowadays. The essay will also discuss the narrative strategies that Tomás Eloy Martínez uses in the texts that were originally published in newspapers of Caracas and Buenos Aires, and that were read merely as journalistic pieces of writing. For this reason, the essay will carefully revise some of the main theoretical postulates that were written by the very same writer/journalist.

  2. Sonata para guitarra (1933) de Antonio José Martínez Palacios (1902-1936) : estudio de relaciones motívicas

    OpenAIRE

    Tangarife Jaramillo, Luis Esteban

    2012-01-01

    Esta monografía analiza la Sonata para guitarra (1933), obra del compositor español Antonio José Martínez Palacios, desde las relaciones temáticas entre los movimientos, buscando ayudar al intérprete en el reconocimiento de la forma a la hora de ejecutarla. Hace alusión a la vida del autor y a las circunstancias que han rodeado la Sonata para guitarra desde su composición hasta nuestros días; analiza la forma, la armonía y el desarrollo motívico de la obra; y finalmente, aporta algunos puntos...

  3. Diiagnóstico económico y financiero de Electrónica Martínez de Cartagena

    OpenAIRE

    García García, Nuria

    2015-01-01

    Este Trabajo Fin de Máster está incluido en los estudios del Máster en Contabilidad y Finanzas Corporativas realizados en la Universidad Politécnica de Cartagena en el curso académico 2014-2015. El objetivo principal de este proyecto es realizar un análisis económico y financiero de la empresa Electrónica Martínez de Cartagena, S.L. en el periodo de 2008 a 2013, mediante la utilización de una serie de técnicas estudiadas a lo largo de la carrera y perfeccionadas durante el M...

  4. Diiagnóstico económico y financiero de Electrónica Martínez de Cartagena

    OpenAIRE

    García García, Nuria

    2015-01-01

    Este Trabajo Fin de Máster está incluido en los estudios del Máster en Contabilidad y Finanzas Corporativas realizados en la Universidad Politécnica de Cartagena en el curso académico 2014-2015. El objetivo principal de este proyecto es realizar un análisis económico y financiero de la empresa Electrónica Martínez de Cartagena, S.L. en el periodo de 2008 a 2013, mediante la utilización de una serie de técnicas estudiadas a lo largo de la carrera y perfeccionadas durante el M...

  5. Los cuerpos del duelo. Un acercamiento a La isla (2009) de Uli Stelzner y A ojos cerrados (2010) de Hernán Jiménez.

    OpenAIRE

    Poe Lang, Karen

    2013-01-01

    El propósito de este ensayo es analizar el tema del duelo –desde una perspectiva psicoanalítica en dos textos fílmicos centroamericanos de aparición reciente. El documental La isla, archivos de una tragedia, del director alemán Uli Stelzner, presenta el problema del duelo por las personas desaparecidas después del genocidio ocurrido en Guatemala. Por su parte, el largometraje de ficción A ojos cerrados, del director costarricense Hernán Jiménez, narra las visicitudes del duelo en unapequeña f...

  6. Retorno de un cruzado, by José Jiménez Lozano. Creation, Intertextuality and Originality of a Writing Process

    Directory of Open Access Journals (Sweden)

    Guadalupe Arbona Abascal

    2017-01-01

    Full Text Available This paper analyzes the writing process of José Jiménez Lozano’s Retorno de un cruzado (2013, his 24th novel. First, taking into account the author’s comments about the creation of the text, it presents the different versions and the literary reasons for his final choice. Second, literary intertextualities found in the novel are examined. Finally, the condition of the main character as storyteller is identified as the novel’s major source of originality.

  7. Nuevas aportaciones documentales sobre el grabador Crisóstomo Martínez y su atlas de anatomía

    OpenAIRE

    Velasco Morgado, Raúl

    2012-01-01

    In this paper we present new documentary findings about Crisóstomo Martínez, a key figure in understanding the Spanish Baroque Anatomy and the movement called «novator». The documents presented show some new biographical data as well as some early news regarding the author’s direct negotiations with the Crown in 1683 in order to apply for the grant that would allow him to take his famous trip to Paris. We also analyze the reports prepared for the final deliberation of the Court on this matter...

  8. Optimisation 3D du nez d'un SuperSonic Business Jet basée sur l'adaptation de maillages. Application à la réduction du bang sonique

    OpenAIRE

    Alauzet, Frédéric; Mohammadi, Bijan

    2003-01-01

    Ce rapport traite d'un problème d'optimisation de forme 3D du nez d'un SuperSonic Business Jet (SSBJ) sous des contraintes aérodynamiques et accoustiques. La contrainte accoustique concerne la génération du bang sonique par l'avion. On présente une méthode d'optimisation de faible dimension pour analyser l'impact du nez sur ces contraintes. Plus précisément, après avoir paramétrisé le nez de l'avion, on échantillonne l'espace de contrôle, puis on construit la surface de réponse qui nous donne...

  9. Ciclo de vida, ciclos de estudo, autoconceito e perceção de avaliação de desempenho: contributo para um modelo de avaliação do desempenho docente.

    OpenAIRE

    Jesus, Maria do Céu Silva Nunes de

    2013-01-01

    O estudo apresentado neste documento pretende perceber a relação entre a perceção dos docentes, quando posicionados em diferentes fases da carreira, ou a lecionar a dis-tintos ciclos de estudo, acerca do modelo de avaliação do seu desempenho e do auto-conceito profissional. Assim, este estudo visa estimar o impacto do modelo de avaliação de desempenho para o desenvolvimento de expetativas de realização pessoal e profis-sional nos docentes. Numa fase inicial, a investigação enquadra-se na t...

  10. Perceção de qualidade de vida e estado de saúde em idosos dependentes e seus cuidadores informais e formais : comparação de perspetivas

    OpenAIRE

    Mesquita, Ana Cristina Freitas Peixoto Miranda

    2016-01-01

    Tese de mestrado, Psicologia (Secção de Psicologia Clínica e da Saúde, Núcleo de Psicologia da Saúde e da Doença), Universidade de Lisboa, Faculdade de Psicologia, 2016 O presente estudo tem como objetivos: a) explorar algumas das variáveis associadas à relação de prestação de cuidados, como a Qualidade de Vida e a Qualidade de Vida Relacionada com a Saúde dos idosos dependentes, e a Qualidade de Vida e perceção de Sobrecarga e Burnout nos cuidadores; e b) comparar as perspetivas ...

  11. Homenaje de los Institutos de Derecho Constitucional y Derechos Humanos a Justino Jiménez de Aréchaga en el centenario de su nacimiento

    Directory of Open Access Journals (Sweden)

    Alberto Pérez Pérez

    2014-02-01

    Full Text Available Nació hace cien años, pero su pensamiento sigue plenamente vigente.Su gran obra – verdadero tratado de Derecho Constitucional Uruguayo aunque él no le haya dado ese nombre –terminó de publicarse hace casi seis décadas, pero sigue siendo imprescindible obra de consulta para todos los juristas de nuestro país.Falleció en 1980, pero aún hoy – y sin duda por mucho tiempo más – no hay estudio serio de su especialidad que no comience por indagar lo que él pensaba al respecto.Ése es Justino Jiménez de Aréchaga, la grande, inmensa personalidad uruguaya de cuyo nacimiento se cumplen hoy cien años.Los Institutos de Derecho Constitucional y Derechos Humanos, que me honro en dirigir, le rinden hoy un merecidísimo homenaje, que podemos sintetizar en cuatro afirmaciones:I.Justino Jiménez de Aréchaga hizo una obra maestraII.Fue un Maestro del Derecho y de la vida en democraciaIII.Como verdadero Maestro, también nos enseñó/incitó a tratar de continuar su obraIV.El homenaje que le debemos al Maestro Aréchaga consiste, precisamente, no en palabras sino en obras que lo honren.

  12. GÉNERO, PODER Y ESPIRITUALIDAD EN LIMA COLONIAL: LA REFORMA CONVENTUAL DEL MÍSTICO DIEGO MARTÍNEZ, SJ 0609-1626

    Directory of Open Access Journals (Sweden)

    Alexandre Coello de la Rosa

    2013-02-01

    Full Text Available Este ensayo tiene como objetivo estudiar la figura del jesuita Diego Martínez (15421626, SJ, como místico y maestro espiritual de religiosas y beatas de los conventos de Lima. Sobre la mística jesuita y peruana del siglo XVII se ha escrito poco, a pesar de contar con ilustres místicos, como Diego Álvarez de Paz (1562-1620, SJ, Antonio Ruiz de Montoya (1585-1652, SJ, Juan de Alloza (1597-1666, SJ, Francisco del Castillo, SJ (1615-1673, o el mismo Diego Martínez, SJ. y poco, o muy poco, sobre el contexto social e histórico que favoreció la espiritualidad de la Compañía deJesús en el Perú (161025. Durante el provincialato del padre Diego Álvarez de Paz (1616-1620, SJ, los jesuitas habían explorado individualmente la mística y la espiritualidad en su vertiente contemplativa, pero su espacio de difusión no fue la universidad sino los conventos de mujeres.

  13. The Will for Style of the Very Young José Martínez Ruiz: a Learner of the Satirical Criticism (1893-1894

    Directory of Open Access Journals (Sweden)

    Miguel Ángel Martín-Hervás Jiménez

    2016-07-01

    Full Text Available In this article, the first three works of José Martínez Ruiz, Azorín (1873-1967, will be analyzed. La crítica literaria en España (1893, Moratín (1893 and Buscapiés (1894 will be studied according to two objectives. The first and main objective consists in determining what kind of literary personality Azorín wanted to build for himself in his three first books. For this purpose, the theory of “la voluntad de estilo” (the will for style exposed by Juan Marichal in his book Teoría e historia del ensayismo hispánico (1984 will be used as the main methodological principle. Secondly, it will be verified if it is true or not that the young Azorín used the anarchist ideology to build his public image as a writer. In conclusion, it will be postulated that the young Martínez Ruiz was involved, during the period of 1893-1894, in a stage of learning in which he pretended to show an image of himself as a Crítico Satírico or Crítico Discordante. In addition, it will be clarified that Azorín had not used until this moment the anarchism as his aesthetic and ideological support.

  14. Chemins de traverse d’Ignacio Martínez de Pisón, roman de l’absence, roman de l’amour

    Directory of Open Access Journals (Sweden)

    André-Alain Morello

    2012-08-01

    Full Text Available Chemins de traverse d’Ignacio Martínez de Pisón se présente comme la pseudo autobiographie d’un adolescent, Felipe, qui, à la mort de sa mère, est condamné à vivre avec un père marginal. Le texte est aussi la conversion d’un récit de type picaresque en un roman qui débouche sur la découverte mutuelle d’un père et d’un fils. L’errance des deux personnages, chemin de fuite destiné à compenser la disparition de Cecilia, conduit à une sorte d’assomption de l’amour.Caminos secundarios, de Ignacio Martínez de Pisón, se presenta como la supuesta autobiografía de un adolescente, Felipe, quien, a la muerte de su madre, se ve forzado a vivir con un padre marginal. El texto es también la evolución de una narración de carácter picaresco hacia una novela que desemboca en el descubrimiento mutuo entre padre e hijo. El vagabundeo de ambos personajes, escape y consuelo por la desaparición de Cecilia, lleva a una forma de exaltación amorosa.

  15. Marcos Pérez Jiménez y Gustavo Rojas Pinilla: Dos modelos de dictaduras desarrollistas en América Latina

    Directory of Open Access Journals (Sweden)

    Frank Rodríguez

    2011-01-01

    Full Text Available En la década de los 50, se establecieron en América Latina una serie de regímenes militares que impulsaron el desarrollo económico a través de la promoción de los procesos de industrialización. Entre estas llamadas “dictaduras desarrollistas” figuran los gobiernos de Marcos Pérez Jiménez en Venezuela, Manuel Odría en Perú, Gustavo Rojas Pinilla en Colombia, y Juscelino Kubitschek en Brasil. El objetivo de este artículo de investigación, es presentar un estudio comparado de los regímenes de Marcos Pérez Jiménez en Venezuela y Gustavo Rojas Pinilla en Colombia, tomando en cuenta el contexto histórico en el que surgen, el modelo de desarrollo promovido, su visión de la democracia y el pueblo, y el papel del Estado en el desarrollo económico.

  16. A Watershed Integrity Definition and Assessment Approach to Support Strategic Management of Watersheds

    Science.gov (United States)

    Although defined hydrologically as a drainage basin, watersheds are systems that physically link the individual social and ecological attributes that comprise them. Hence the structure, function, and feedback systems of watersheds are dependent on interactions between these soci...

  17. A Watershed Integrity Definition and Assessment Approach to Support Strategic Management of Watersheds

    Science.gov (United States)

    Although defined hydrologically as a drainage basin, watersheds are systems that physically link the individual social and ecological attributes that comprise them. Hence the structure, function, and feedback systems of watersheds are dependent on interactions between these soci...

  18. Watershed Fact Sheet: Improving Utah's Water Quality, Upper Bear River Watershed

    OpenAIRE

    2012-01-01

    The Upper Watershed of the Bear River Basin extends from the river's headwaters to Pixley Dam in Wyoming. This is the largest watershed in the Bear River Basin, with an area of about 2,000 square miles.

  19. Soils of Walker Branch Watershed

    Energy Technology Data Exchange (ETDEWEB)

    Lietzke, D.A.

    1994-01-01

    The soil survey of Walker Branch Watershed (WBW) utilized the most up-to-date knowledge of soils, geology, and geohydrology in building the soils data base needed to reinterpret past research and to begin new research in the watershed. The soils of WBW were also compared with soils mapped elsewhere along Chestnut Ridge on the Oak Ridge Reservation to (1) establish whether knowledge obtained elsewhere could be used within the watershed, (2) determine whether there were any soils restricted to the watershed, and (3) evaluate geologic formation lateral variability. Soils, surficial geology, and geomorphology were mapped at a scale of 1:1200 using a paper base map having 2-ft contour intervals. Most of the contours seemed to reasonably represent actual landform configurations, except for dense wooded areas. For example, the very large dolines or sinkholes were shown on the contour base map, but numerous smaller ones were not. In addition, small drainageways and gullies were often not shown. These often small but important features were located approximately as soil mapping progressed. WBW is underlain by dolostones of the Knox Group, but only a very small part of the surface area contains outcroppings of rock and most outcrops were located in the lower part. Soil mapping revealed the presence of both ancient alluvium and ancient colluvium deposits, not recognized in previous soil surveys, that have been preserved in high-elevation stable portions of present-day landforms. An erosional geomorphic process of topographic inversion requiring several millions of years within the Pleistocene is necessary to bring about the degree of inversion that is expressed in the watershed. Indeed, some of these ancient alluvial and colluvial remnants may date back into the Tertiary. Also evident in the watershed, and preserved in the broad, nearly level bottoms of dolines, are multiple deposits of silty material either devoid or nearly devoid of coarse fragments. Recent research

  20. Landscape characterization for watershed management

    Energy Technology Data Exchange (ETDEWEB)

    Hunsaker, C.T.; Jackson, B.L. [Oak Ridge National Lab., TN (United States); Schwartz, P.M. [Oak Ridge Institute for Science Education, Oak Ridge, TN (United States)

    1996-07-01

    Streams and rivers serve as integrators of terrestrial landscape characteristics and as recipients of pollutants from both the atmosphere and the land; thus, large rivers are especially good indicators of cumulative impacts. Landscape ecologists seek to better understand the relationships between landscape structure and ecosystem processes at various spatial scales. Understanding how scale, both data resolution and geographic extent, influences landscape characterization and how terrestrial processes affect water quality are critically important for model development and translation of research results from experimental watersheds to management of large drainage basins. Measures of landscape structure are useful to monitor change and assess the risks it poses to ecological resources. Many studies have shown that the proportion of different land uses within a watershed can account for some of the variability in surface water quality. Hunsaker and Levine showed that both proportion of land uses and the spatial pattern of land uses is important for characterizing and modeling water quality; however, proportion consistently accounted for the most variance (40% to 86%) across a range of watershed sizes (1000 to 1.35 million ha). The U.S. Environmental Protection Agency (EPA) is performing a demonstration of its Environmental Monitoring and Assessment Program (EMAP) for the Mid-Atlantic Region. One activity, the Mid-Atlantic Integrated Assessment, is designed as a collaborative initiative between EPA`s Office of Research and Development and EPA`s Region III.

  1. Elevation - LiDAR Survey Minnehaha Creek, MN Watershed

    Data.gov (United States)

    Army Corps of Engineers, Department of the Army, Department of Defense — LiDAR Bare-Earth Grid - Minnehaha Creek Watershed District. The Minnehaha Creek watershed is located primarily in Hennepin County, Minnesota. The watershed covers...

  2. Volunteer Watershed Health Monitoring by Local Stakeholders: New Mexico Watershed Watch

    Science.gov (United States)

    Fleming, William

    2003-01-01

    Volunteers monitor watershed health in more than 700 programs in the US, involving over 400,000 local stakeholders. New Mexico Watershed Watch is a student-based watershed monitoring program sponsored by the state's Department of Game and Fish which provides high school teachers and students with instruction on methods for water quality…

  3. Engaging Watershed Stakeholders for Cost-Effective Environmental Management Planning with "Watershed Manager"

    Science.gov (United States)

    Williams, Jeffery R.; Smith, Craig M.; Roe, Josh D.; Leatherman, John C.; Wilson, Robert M.

    2012-01-01

    "Watershed Manager" is a spreadsheet-based model that is used in extension education programs for learning about and selecting cost-effective watershed management practices to reduce soil, nitrogen, and phosphorus losses from cropland. It can facilitate Watershed Restoration and Protection Strategy (WRAPS) stakeholder groups' development…

  4. Engaging Watershed Stakeholders for Cost-Effective Environmental Management Planning with "Watershed Manager"

    Science.gov (United States)

    Williams, Jeffery R.; Smith, Craig M.; Roe, Josh D.; Leatherman, John C.; Wilson, Robert M.

    2012-01-01

    "Watershed Manager" is a spreadsheet-based model that is used in extension education programs for learning about and selecting cost-effective watershed management practices to reduce soil, nitrogen, and phosphorus losses from cropland. It can facilitate Watershed Restoration and Protection Strategy (WRAPS) stakeholder groups' development…

  5. Engaging Watershed Stakeholders for Cost-Effective Environmental Management Planning with "Watershed Manager"

    Science.gov (United States)

    Williams, Jeffery R.; Smith, Craig M.; Roe, Josh D.; Leatherman, John C.; Wilson, Robert M.

    2012-01-01

    "Watershed Manager" is a spreadsheet-based model that is used in extension education programs for learning about and selecting cost-effective watershed management practices to reduce soil, nitrogen, and phosphorus losses from cropland. It can facilitate Watershed Restoration and Protection Strategy (WRAPS) stakeholder groups' development of…

  6. Water and Poverty in Two Colombian Watersheds

    Directory of Open Access Journals (Sweden)

    Nancy Johnson

    2009-02-01

    Full Text Available Watersheds, especially in the developing world, are increasingly being managed for both environmental conservation and poverty alleviation. How complementary are these objectives? In the context of a watershed, the actual and potential linkages between land and water management and poverty are complex and likely to be very site specific and scale dependent. This study analyses the importance of watershed resources in the livelihoods of the poor in two watersheds in the Colombian Andes. Results of the participatory poverty assessment reveal significant decreases in poverty in both watersheds over the past 25 years, which was largely achieved by the diversification of livelihoods outside of agriculture. Water is an important resource for household welfare. However, opportunities for reducing poverty by increasing the quantity or quality of water available to the poor may be limited. While improved watershed management may have limited direct benefits in terms of poverty alleviation, there are important indirect linkages between watershed management and poverty, mainly through labour and service markets. The results suggest that at the level of the watershed the interests of the rich and the poor are not always in conflict over water. Sectoral as well as socio-economic differences define stakeholder groups in watershed management. The findings have implications for policymakers, planners and practitioners in various sectors involved in the implementation of integrated water resources management (IWRM.

  7. Community-Based Integrated Watershed Management

    Institute of Scientific and Technical Information of China (English)

    Li Qianxiang; Kennedy N.logbokwe; Li Jiayong

    2005-01-01

    Community-based watershed management is different from the traditional natural resources management. Traditional natural resources management is a way from up to bottom, but the community-based watershed management is from bottom to up. This approach focused on the joining of different stakeholders in integrated watershed management, especially the participation of the community who has been ignored in the past. The purpose of this paper is to outline some of the important basic definitions, concepts and operational framework for initiating community-based watershed management projects and programs as well as some successes and practical challenges associated with the approach.

  8. Perceção dos pais em relação à inclusão de crianças com Necessidades Educativas Especiais no ensino regular

    Directory of Open Access Journals (Sweden)

    Elisabete Matos Freitas

    2015-05-01

    Full Text Available http://dx.doi.org/10.5902/1984686X15273O papel dos pais no processo de inclusão de crianças com necessidades educativas especiais é fundamental, seja no apoio familiar, desmontando mitos e criando um contexto favorável à experiência e à proximidade. O objetivo deste trabalho é, assim, conhecer as perceções dos pais relativamente à inclusão, assim como os factores que as influenciam. Para isso, foi aplicado um inquérito a 300 pais, com e sem filhos com necessidades educativas especiais. Os resultados permitiram perceber atitudes genericamente positivas, sem diferenças relativamente ao género e ao fato de serem pais de crianças com necessidades educativas especiais. Contudo as variáveis idade, escolaridade e proximidade / contato pareceram influenciar a perceção em relação a inclusão de crianças NEE. Assim, os pais com atitudes mais favoráveis à inclusão tendem a ser os mais novos, que tiveram proximidade / contato com criança NEE. Os resultados são discutidos em função da literatura.

  9. A Dança como Fator de Desenvolvimento Pessoal e de Inclusão: Perceções de um Grupo de Dança Inclusiva

    Directory of Open Access Journals (Sweden)

    Ana P. Antunes

    2013-09-01

    Full Text Available Nos últimos anos a arte tem sido associada à promoção da inclusão. O objetivo deste trabalho é analisar as perceções do impacto do grupo de Dança Inclusiva, Grupo Dançando com a Diferença, no desenvolvimento pessoal e na inclusão social dos seus elementos. No estudo participaram 20 sujeitos: 12 bailarinos (cinco bailarinos sem necessidades especiais e sete com necessidades especiais, cinco elementos que fazem parte da equipa técnica, e três encarregados de educação de bailarinos com deficiência mental. A recolha de dados foi realizada através da realização de focus groups junto de bailarinos, encarregados de educação e equipa técnica, e de uma entrevista individual ao Diretor Artístico. Os resultados apontam genericamente para perceções do grupo como agente facilitador da inclusão e de mudanças ao nível da aquisição de competências técnicas e artísticas, associadas ao desenvolvimento de competências sociais, permitindo perceber a dança também como forma de realização profissional e de inserção social.

  10. What can we learn from the deadly flash floods? Post Event Review Capability (PERC) analysis of the Bavaria and Baden-Wurttemberg flood events in Summer 2016

    Science.gov (United States)

    Szoenyi, Michael

    2017-04-01

    In May/June 2016, stationary low pressure systems brought intense rainfall with record-braking intensities of well above 100 mm rain in few hours locally in the southern states of Baden-Wurttemberg and Bavaria, Germany. In steep terrains, small channels and creeks became devastating torrents impacting, among others, the villages of Simbach/Inn, Schwäbisch-Gmünd and Braunsbach. Just few days prior, France had also seen devastating rainfall and flooding. Damage in Germany alone is estimated at 2.8 M USD, of which less than 50% are insured. The loss of life was significant, with 18 fatalities reported across the events. This new forensic event analysis as part of Zurich's Post Event Review Capability (PERC) investigates the flash flood events following these record rainfalls in Southern Germany and tries to answer the following questions holistically, across the five capitals (5C) and the full disaster risk management (DRM) cycle, which are key to understanding how to become more resilient to such flood events: - Why have these intense rainfall events led to such devastating consequences? The EU Floods directive and its implementation in the various member states, as well as the 2002 and 2013 Germany floods, have focused on larger rivers and the main asset concentration. The pathway and mechanism of the 2016 floods are very different and need to be better understood. Flash floods and surface flooding may need to become the new focus and be much better communicated to people at risk, as the awareness for such perils has been identified as low. - How can the prevalence for such flash floods be better identified and mapped? Research indicated that affected people and decision makers alike attribute the occurrence of such flash floods as arbitrary, but we argue that hotspots can and must be identified based on an overlay of rainfall intensity maps, topography leading to flash flood processes, and vulnerable assets. In Germany, there are currently no comprehensive hazard

  11. El Manuscrito Cerramientos y trazas de montea de Ginés Martínez de Aranda

    Directory of Open Access Journals (Sweden)

    Calvo López, José

    2009-03-01

    Full Text Available Ginés Martínez de Aranda, master mason in the cathedrals of Cádiz and Santiago de Compostela during the late 16th century, wrote a manuscript, Cerramientos y trazas de montea, concerning geometrical problems in stone construction. This article deals with the copy of Cerramientos in the Servicio Histórico Militar (Madrid, its copyist, dating, the existence of an earlier version and whether or not Aranda intended to publish it. Also examined are the connections between Cerramientos and other Spanish stonecutting texts of the period, such as those by Alonso de Vandelvira, Cristóbal de Rojas, Alonso de Guardia or Juan de Portor y Castro. Finally, an assessment is made of Martínez de Aranda’s original contributions to European stonecutting literatura.

    El arquitecto y cantero baezano Ginés Martínez de Aranda, que trabajó a finales del siglo XVI y ejerció la maestría de las catedrales de Cádiz y Santiago de Compostela, compuso un manuscrito llamado Cerramientos y trazas de montea, que trata de los problemas geométricos de la construcción pétrea. El artículo analiza la copia del manuscrito conservada en el Servicio Histórico Militar de Madrid, la identidad del copista, la fecha de la primera redacción de la obra y la de la copia conservada, y el destino de la obra; a continuación, se estudia la relación del manuscrito con otras obras españolas de cantería, en especial las de Alonso de Vandelvira, Cristóbal de Rojas, Alonso de Guardia y Juan de Portor y Castro, para finalizar tratando diversas aportaciones originales de Aranda a la literatura europea de la cantería.

  12. Book review / reseña: PALLARÉS JIMÉNEZ, M. Á., La imprenta de los incunables de Zaragoza y el comercio internacional del libro a finales del siglo XV.

    OpenAIRE

    Sergio García Sierra

    2010-01-01

    Reseña del libro: PALLARÉS JIMÉNEZ, M. Á., La imprenta de los incunables de Zaragoza y el comercio internacional del libro a finales del siglo XV, Zaragoza, Institución «Fernando el Católico», 2008. 992 pp. ISBN: 978-84-7820-854-8.

  13. Book review / reseña: PALLARÉS JIMÉNEZ, M. Á., La imprenta de los incunables de Zaragoza y el comercio internacional del libro a finales del siglo XV.

    Directory of Open Access Journals (Sweden)

    Sergio García Sierra

    2010-01-01

    Full Text Available Reseña del libro: PALLARÉS JIMÉNEZ, M. Á., La imprenta de los incunables de Zaragoza y el comercio internacional del libro a finales del siglo XV, Zaragoza, Institución «Fernando el Católico», 2008. 992 pp. ISBN: 978-84-7820-854-8.

  14. Book review / reseña: LORENTE, J. P., SÁNCHEZ GIMÉNEZ, S. y CABAÑAS BRAVO, M., Vae victis! Los artistas del exilio y sus museos.

    Directory of Open Access Journals (Sweden)

    Jesús F. Pascual Molina

    2010-01-01

    Full Text Available Reseña del libro: LORENTE, J. P., SÁNCHEZ GIMÉNEZ, S. y CABAÑAS BRAVO, M., Vae victis! Los artistas del exilio y sus museos, Gijón, Ediciones Trea, 2009. 340 páginas ISBN: 978-84-9704-458-5.

  15. Alonso Fernández de Avellaneda, Segundo Tomo de El ingenioso hidalgo Don Quijote de la Mancha, eds. M. Rodríguez Cáceres y F.B. Pedraza Jiménez

    Directory of Open Access Journals (Sweden)

    Alfredo Rodríguez López-Vázquez

    2015-01-01

    Full Text Available Reseña de Alonso Fernández de Avellaneda, Segundo Tomo de El ingenioso hidalgo Don Quijote de la Mancha, eds. M. Rodríguez Cáceres y F.B. Pedraza Jiménez, Diputación de Ciudad Real, Ciudad Real, 2014, 420 pp. ISBN: 9788477893097.

  16. Precisando la historia. Itinerario cronológico y geográfico de la expedición de Jiménez de Quesada al Reino Chibcha

    Directory of Open Access Journals (Sweden)

    Alberto E. Ariza S.

    1963-07-01

    Full Text Available Indudablemente uno de los capítulos de más interés en la historia patria colombiana es la expedición de don Gonzalo Jiménez de Quesada para descubrir las cabeceras del Río Grande la Magdalena, y hallar un paso por tierra hacia los Reinos del Perú.

  17. Geology of the Teakettle Creek watersheds

    Science.gov (United States)

    Robert S. LaMotte

    1937-01-01

    The Teakettle Creek Experimental Watersheds lie for the most part on quartzites of probable Triassic age. However one of the triplicate drainages has a considerable acreage developed on weathered granodiorite. Topography is relatively uniform and lends itself to triplicate watershed studies. Locations for dams are suitable if certain engineering precautions...

  18. Watershed: A Successful Voyage into Integrative Learning.

    Science.gov (United States)

    Springer, Mark

    This book describes a "whole learning" approach to education called the Watershed Program, which stresses integrated curriculum and experiential learning. Each chapter begins with an episode from the history of eastern Pennsylvania along the Brandywine River, used as an analogy to problems faced by the teachers in the Watershed program.…

  19. Segmentation by watersheds : definition and parallel implementation

    NARCIS (Netherlands)

    Roerdink, Jos B.T.M.; Meijster, Arnold

    1997-01-01

    The watershed algorithm is a method for image segmentation widely used in the area of mathematical morphology. In this paper we first address the problem of how to define watersheds. It is pointed out that various existing definitions are not equivalent. In particular we explain the differences betw

  20. 18 CFR 801.9 - Watershed management.

    Science.gov (United States)

    2010-04-01

    ... 18 Conservation of Power and Water Resources 2 2010-04-01 2010-04-01 false Watershed management... GENERAL POLICIES § 801.9 Watershed management. (a) The character, extent, and quality of water resources... management including soil and water conservation measures, land restoration and rehabilitation,...

  1. Uncertainty Consideration in Watershed Scale Models

    Science.gov (United States)

    Watershed scale hydrologic and water quality models have been used with increasing frequency to devise alternative pollution control strategies. With recent reenactment of the 1972 Clean Water Act’s TMDL (total maximum daily load) component, some of the watershed scale models are being recommended ...

  2. Retrospect and prospect of watershed hydrological model

    Institute of Scientific and Technical Information of China (English)

    B.CHEN; Z.F.YANG; 等

    2001-01-01

    A brief review is presented of the development of watershed hydrological models,COnventional Hydrological Model,Grey Hydrological Model,Digital Hydrological Model and Intelligent Hydrological Model are analyzed.The Frameworks of Fuzzy Cognitive Hydrological Model and Integrated Digital Watershed Hydrological Model are presented.

  3. Watershed Management: Lessons from Common Property Theory

    Directory of Open Access Journals (Sweden)

    John Kerr

    2007-10-01

    Full Text Available Watershed development is an important component of rural development and natural resource management strategies in many countries. A watershed is a special kind of common pool resource: an area defined by hydrological linkages where optimal management requires coordinated use of natural resources by all users. Management is difficult because natural resources comprising the watershed system have multiple, conflicting uses, so any given management approach will spread benefits and costs unevenly among users. To address these challenges, watershed approaches have evolved from more technocratic to a greater focus on social organization and participation. However, the latter cannot necessarily be widely replicated. In addition, participatory approaches have worked better at a small scale, but hydrological relationships cover a larger scale and some projects have faced tradeoffs in choosing between the two. Optimal approaches for future efforts are not clear, and theories from common property research do not support the idea that complex watershed management can succeed everywhere. Solutions may include simplifying watershed projects, pursuing watershed projects where conditions are favorable, and making other investments elsewhere, including building the organizational capacity that can facilitate watershed management.

  4. Prioritization of sub-watersheds based on morphometric analysis using geospatial technique in Piperiya watershed, India

    Science.gov (United States)

    Chandniha, Surendra Kumar; Kansal, Mitthan Lal

    2017-03-01

    Hydrological investigation and behavior of watershed depend upon geo-morphometric characteristics of catchment. Morphometric analysis is commonly used for development of regional hydrological model of ungauged watershed. A critical valuation and assessment of geo-morphometric constraints has been carried out. Prioritization of watersheds based on water plot capacity of Piperiya watershed has been evaluated by linear, aerial and relief aspects. Morphometric analysis has been attempted for prioritization for nine sub-watersheds of Piperiya watershed in Hasdeo river basin, which is a tributary of the Mahanadi. Sub-watersheds are delineated by ArcMap 9.3 software as per digital elevation model (DEM). Assessment of drainages and their relative parameters such as stream order, stream length, stream frequency, drainage density, texture ratio, form factor, circulatory ratio, elongation ratio, bifurcation ratio and compactness ratio has been calculated separately for each sub-watershed using the Remote Sensing (RS) and Geospatial techniques. Finally, the prioritized score on the basis of morphometric behavior of each sub-watershed is assigned and thereafter consolidated scores have been estimated to identify the most sensitive parameters. The analysis reveals that stream order varies from 1 to 5; however, the first-order stream covers maximum area of about 87.7 %. Total number of stream segment of all order is 1,264 in the watershed. The study emphasizes the prioritization of the sub-watersheds on the basis of morphometric analysis. The final score of entire nine sub-watersheds is assigned as per erosion threat. The sub-watershed with the least compound parameter value was assigned as highest priority. However, the sub-watersheds has been categorized into three classes as high (4.1-4.7), medium (4.8-5.3) and low (>5.4) priority on the basis of their maximum (6.0) and minimum (4.1) prioritized score.

  5. Elk River Watershed - Flood Study

    Science.gov (United States)

    Barnes, C. C.; Byrne, J. M.; MacDonald, R. J.; Lewis, D.

    2014-12-01

    Flooding has the potential to cause significant impacts to economic activities as well as to disrupt or displace populations. Changing climate regimes such as extreme precipitation events increase flood vulnerability and put additional stresses on infrastructure. Potential flooding from just under 100 (2009 NPRI Reviewed Facility Data Release, Environment Canada) toxic tailings ponds located in Canada increase risk to human safety and the environment. One such geotechnical failure spilt billions of litres of toxic tailings into the Fraser River watershed, British Columbia, when a tailings pond dam breach occurred in August 2014. Damaged and washed out roadways cut access to essential services as seen by the extensive floods that occurred in Saskatchewan and Manitoba in July 2014, and in Southern Alberta in 2013. Recovery efforts from events such as these can be lengthy, and have substantial social and economic impacts both in loss of revenue and cost of repair. The objective of this study is to investigate existing conditions in the Elk River watershed and model potential future hydrological changes that can increase flood risk hazards. By analyzing existing hydrology, meteorology, land cover, land use, economic, and settlement patterns a baseline is established for existing conditions in the Elk River watershed. Coupling the Generate Earth Systems Science (GENESYS) high-resolution spatial hydrometeorological model with flood hazard analysis methodology, high-resolution flood vulnerability base line maps are created using historical climate conditions. Further work in 2015 will examine possible impacts for a range of climate change and land use change scenarios to define changes to future flood risk and vulnerability.

  6. Payments for watershed services: opportunities and realities

    Energy Technology Data Exchange (ETDEWEB)

    Bond, Ivan

    2007-08-15

    Many nations have found that regulatory approaches to land and water management have limited impact. An alternative is to create incentives for sound management - under mechanisms known as payments for ecosystem services. It is a simple idea: people who look after ecosystems that benefit others should be recognised and rewarded. In the case of watersheds, downstream beneficiaries of wise upstream land and water use should compensate the stewards. To be effective these 'payments for watershed services' must cover the cost of watershed management. In developing countries, they might also aid local development and reduce poverty. But new research shows that the problems in watersheds are complex and not easily solved. Payments for watershed services do not guarantee poverty reduction and cannot replace the best aspects of regulation.

  7. Measuring environmental sustainability of water in watersheds.

    Science.gov (United States)

    Hester, Erich T; Little, John C

    2013-08-06

    Environmental sustainability assessment is a rapidly growing field where measures of sustainability are used within an assessment framework to evaluate and compare alternative actions. Here we argue for the importance of evaluating environmental sustainability of water at the watershed scale. We review existing frameworks in brief before reviewing watershed-relevant measures in more detail. While existing measures are diverse, overlapping, and interdependent, certain attributes that are important for watersheds are poorly represented, including spatial explicitness and the effect of natural watershed components, such as rivers. Most studies focus on one or a few measures, but a complete assessment will require use of many existing measures, as well as, perhaps, new ones. Increased awareness of the broad dimensions of environmental sustainability as applied to water management should encourage integration of existing approaches into a unified assessment framework appropriate for watersheds.

  8. Joaquín Ruiz-Giménez, the Catholic exemplar: notes for a political and intellectual biography up to 1963 | Joaquín Ruiz-Giménez o el católico total: apuntes para una biografía política e intelectual hasta 1963

    Directory of Open Access Journals (Sweden)

    Javier Muñoz Soro

    2006-12-01

    Full Text Available The biography of Joaquín Ruiz-Giménez is a virtual paradigm of two historical phenomena which distinguished the last two decades of the Franco regime and, to a large extent, paved the way for the future democracy: on the one hand, the rift between Catholic and Falangist intellectuals and the regime which they had enthusiastically helped to establish after the civil war; and on the other, the secularization of its political thinking and practice. Ruíz-Giménez, ambassador and minister under Franco, was an exception among the Catholic laity that collaborated with the dictatorship, in that he held high government positions and, despite all the reservations concerning his personal development, for many of his peers as well as many aspiring figures of the coming generations, he symbolized the definitive renunciation of all legitimacy of power based on victory in battle or on Catholic natural law, and the definitive adoption of the language of human rights and democracy. | La biografía de Joaquín Ruiz-Giménez representa casi de manera paradigmática dos fenómenos históricos que caracterizaron las dos últimas décadas del franquismo y sentaron, en buena medida las bases de la futura democracia: por un lado, el alejamiento de los intelectuales católicos y falangistas respecto al régimen que habían contribuido a levantar con entusiasmo tras la guerra civil; por otro, la secularización de su pensamiento y práctica política. Ruiz-Giménez, embajador y ministro de Franco, fue una excepción entre los seglares católicos que colaboraron con la dictadura desempeñando altas responsabilidades de gobierno y, pese a todas las cautelas de su evolución personal, simbolizó para bastantes compañeros de su generación, así como para muchos jóvenes alumnos de las nuevas generaciones, la renuncia definitiva a toda legitimación del poder basada en la victoria de las armas o en el iusnaturalismo católico y la adopción irreversible del lenguaje de

  9. Northeast Oregon Hatchery Spring Chinook Master Plan, Technical Report 2000.

    Energy Technology Data Exchange (ETDEWEB)

    Ashe, Becky L.; Concannon, Kathleen; Johnson, David B.

    2000-04-01

    conjunct ion with a modified Lookingglass Hatchery. Each alternative was evaluated based on criteria developed for rearing fish for a conservation program. After this review, the Nez Perce Tribe determined the only alternative that meets the needs of the program is the alternative to use new facilities in conjunction with a modified Lookingglass Hatchery. This is the Proposed Alternative. The Proposed Alternative would require: Construction of a new incubation and rearing facility in the Imnaha River and modifications of the existing Gumboot facility to accommodate the Imnaha component of the Lookingglass Hatchery production; Construction of a new incubation and rearing facility in the Lostine River to accommodate the Lostine component of the Lookingglass Hatchery production; and Modifications at Lookingglass Hatchery to accommodate the Upper Grande Ronde and Catherine Creek components of the Lookingglass Hatchery production. After an extensive screening process of potential sites, the Nez Perce Tribe proposes the Marks Ranch site on the Imnaha River and the Lundquist site on the Lostine River for new facilities. Conceptual design and cost estimates of the proposed facilities are contained in this master plan. The proposed facilities on the Imnaha and Lostine rivers would be managed in conjunction with the existing adult collection and juvenile acclimation/release facilities. Because this master plan has evolved into an endeavor undertaken primarily by the Nez Perce Tribe, the focus of the document is on actions within the Imnaha and Lostine watersheds where the Nez Perce Tribe have specific co-management responsibilities. Nevertheless, modifications at Lookingglass Hatchery could make it possible to provide a quality rearing environment for the remainder of the CPP. The Nez Perce Tribe will assist co-managers in further evaluating facility needs and providing other components of the NPPC master planning process to develop a solution for the entire CPP. Although the fish

  10. Northeast Oregon Hatchery Spring Chinook Master Plan, Technical Report 2000.

    Energy Technology Data Exchange (ETDEWEB)

    Ashe, Becky L.; Concannon, Kathleen; Johnson, David B.

    2000-04-01

    conjunct ion with a modified Lookingglass Hatchery. Each alternative was evaluated based on criteria developed for rearing fish for a conservation program. After this review, the Nez Perce Tribe determined the only alternative that meets the needs of the program is the alternative to use new facilities in conjunction with a modified Lookingglass Hatchery. This is the Proposed Alternative. The Proposed Alternative would require: Construction of a new incubation and rearing facility in the Imnaha River and modifications of the existing Gumboot facility to accommodate the Imnaha component of the Lookingglass Hatchery production; Construction of a new incubation and rearing facility in the Lostine River to accommodate the Lostine component of the Lookingglass Hatchery production; and Modifications at Lookingglass Hatchery to accommodate the Upper Grande Ronde and Catherine Creek components of the Lookingglass Hatchery production. After an extensive screening process of potential sites, the Nez Perce Tribe proposes the Marks Ranch site on the Imnaha River and the Lundquist site on the Lostine River for new facilities. Conceptual design and cost estimates of the proposed facilities are contained in this master plan. The proposed facilities on the Imnaha and Lostine rivers would be managed in conjunction with the existing adult collection and juvenile acclimation/release facilities. Because this master plan has evolved into an endeavor undertaken primarily by the Nez Perce Tribe, the focus of the document is on actions within the Imnaha and Lostine watersheds where the Nez Perce Tribe have specific co-management responsibilities. Nevertheless, modifications at Lookingglass Hatchery could make it possible to provide a quality rearing environment for the remainder of the CPP. The Nez Perce Tribe will assist co-managers in further evaluating facility needs and providing other components of the NPPC master planning process to develop a solution for the entire CPP. Although the fish

  11. Diseño de una linea de producción de vinagres balsámicos de Pedro Ximénez y derivados

    OpenAIRE

    Tirve Valencia, Jenifer

    2015-01-01

    En el presente Proyecto Fin de Carrera se diseñará una línea de producción de Vinagre Balsámico de Pedro Ximénez ecológico y derivados, como la crema balsámica. La creciente demanda local y mundial de este tipo de productos de alto valor añadido, unido a los excedentes de producción de vinos que se está dando en los últimos años en la comarca del Jerez, hacen que la diversificación hacia este tipo de productos sea una alternativa a tener en cuenta. La elaboración del vina...

  12. Marcos Pérez Jiménez y Gustavo Rojas Pinilla: Dos modelos de dictaduras desarrollistas en América Latina

    OpenAIRE

    Frank Rodríguez

    2011-01-01

    En la década de los 50, se establecieron en América Latina una serie de regímenes militares que impulsaron el desarrollo económico a través de la promoción de los procesos de industrialización. Entre estas llamadas “dictaduras desarrollistas” figuran los gobiernos de Marcos Pérez Jiménez en Venezuela, Manuel Odría en Perú, Gustavo Rojas Pinilla en Colombia, y Juscelino Kubitschek en Brasil. El objetivo de este artículo de investigación, es presentar un estudio comparado de los regímenes ...

  13. “Diego Martínez Barrio y la Masonería anda luza y española del siglo XX”

    Directory of Open Access Journals (Sweden)

    Leandro Álvarez Rey

    2009-01-01

    Full Text Available Desde el siglo XIX, Andalucí a se convirtió en la región donde mayor arraigo alcanzó la masonería en España. Profundamente afectada por la crisis fi nisecular, aquella pujante masonería vol vería a resurgir ya bien entrado el siglo XX, en paralelo, al cada vez más progresivo deterioro del sistema político de la Restauración. En este artículo se aborda el papel desempeñado en este proceso por Diego Martínez Barrio, Gran Maestre de la Regional del Mediodía y del Grande Oriente Español y, durante la década de 1930, uno de los principales protagonistas de la Segunda República Española.

  14. Diseño de una linea de producción de vinagres balsámicos de Pedro Ximénez y derivados

    OpenAIRE

    Tirve Valencia, Jenifer

    2015-01-01

    En el presente Proyecto Fin de Carrera se diseñará una línea de producción de Vinagre Balsámico de Pedro Ximénez ecológico y derivados, como la crema balsámica. La creciente demanda local y mundial de este tipo de productos de alto valor añadido, unido a los excedentes de producción de vinos que se está dando en los últimos años en la comarca del Jerez, hacen que la diversificación hacia este tipo de productos sea una alternativa a tener en cuenta. La elaboración del vina...

  15. Nuevas aportaciones documentales sobre el grabador Crisóstomo Martínez y su atlas de anatomía

    Directory of Open Access Journals (Sweden)

    Velasco Morgado, Raúl

    2012-06-01

    Full Text Available In this paper we present new documentary findings about Crisóstomo Martínez, a key figure in understanding the Spanish Baroque Anatomy and the movement called «novator». The documents presented show some new biographical data as well as some early news regarding the author’s direct negotiations with the Crown in 1683 in order to apply for the grant that would allow him to take his famous trip to Paris. We also analyze the reports prepared for the final deliberation of the Court on this matter and the problems the artist encountered in collecting the sum that had been agreed upon once he moved to Flanders.

    En el presente trabajo damos a conocer nuevos hallazgos documentales sobre Crisóstomo Martínez, figura clave para entender la anatomía española del Barroco y el movimiento novator. Se aportan algunos nuevos datos biográficos sobre su probable fecha y lugar de nacimiento y su desconocida familia; igualmente se dan noticias relativas a unas primeras gestiones directas del autor con la Corona en 1683 para la solicitud de la pensión que le permitiría su viaje a París. Además, se analizan los diferentes informes elaborados para la deliberación última de la Corte en esta materia y se da cuenta de los problemas que sufrió el anatomista para el cobro de las cantidades acordadas una vez desplazado a Flandes.

  16. Ideas religiosas del Maestro Bartolomé Jiménez Patón (1569-1640 en El Virtuoso Discreto [c.1629-1631

    Directory of Open Access Journals (Sweden)

    Garau, Jaume

    2012-06-01

    Full Text Available In the manuscript of El virtuoso discreto [The Virtuous Discreet Man], the humanist and grammarian Bartolomé Jiménez Patón reveals himself to be a zealous defender of orthodoxy. This work, formulated as a complement to his pedagogical duties as Professor of Eloquence, manifests its author’s purpose of participating in the religious controversy of his times, particularly in those fundamental aspects that distance Tridentine Catholicism from Lutheranism. Thus, part of the work is dedicated to a reflection on the concept of the Church, free will and theological justification, the doctrine of which was central to the development of the Council of Trent and the seven sacraments. No less important in this manuscript is Patón’s impassioned condemnation of illuministic heresy, the only genuinely Spanish doctrine of this sort in the Modern Age, whose members were also known in Spanish as alumbrados or agapetas.En el ms. de El virtuoso discreto, el humanista y gramático Bartolomé Jiménez Patón se muestra como un receloso defensor de la ortodoxia. La obra, concebida como un complemento a su enseñanza en su cátedra de Elocuencia, evidencia el propósito de su autor de participar en la controversia religiosa de su tiempo, particularmente en aquellos aspectos fundamentales que distancian al catolicismo tridentino del luteranismo. Así, parte de la obra se ocupa en reflexionar sobre el concepto de Iglesia, el libre albedrío y la justificación, cuya doctrina fue central en el desarrollo del concilio de Trento, y los siete sacramentos. No menor importancia presenta su apasionada condena de la herejía iluminista, la única genuinamente española en la Edad Moderna, cuyos miembros fueron también conocidos como alumbrados o agapetas.

  17. Model Calibration in Watershed Hydrology

    Science.gov (United States)

    Yilmaz, Koray K.; Vrugt, Jasper A.; Gupta, Hoshin V.; Sorooshian, Soroosh

    2009-01-01

    Hydrologic models use relatively simple mathematical equations to conceptualize and aggregate the complex, spatially distributed, and highly interrelated water, energy, and vegetation processes in a watershed. A consequence of process aggregation is that the model parameters often do not represent directly measurable entities and must, therefore, be estimated using measurements of the system inputs and outputs. During this process, known as model calibration, the parameters are adjusted so that the behavior of the model approximates, as closely and consistently as possible, the observed response of the hydrologic system over some historical period of time. This Chapter reviews the current state-of-the-art of model calibration in watershed hydrology with special emphasis on our own contributions in the last few decades. We discuss the historical background that has led to current perspectives, and review different approaches for manual and automatic single- and multi-objective parameter estimation. In particular, we highlight the recent developments in the calibration of distributed hydrologic models using parameter dimensionality reduction sampling, parameter regularization and parallel computing.

  18. Mercury cycling in terrestrial watersheds

    Science.gov (United States)

    Shanley, James B.; Bishop, Kevin; Banks, Michael S.

    2012-01-01

    This chapter discusses mercury cycling in the terrestrial landscape, including inputs from the atmosphere, accumulation in soils and vegetation, outputs in streamflow and volatilization, and effects of land disturbance. Mercury mobility in the terrestrial landscape is strongly controlled by organic matter. About 90% of the atmospheric mercury input is retained in vegetation and organic matter in soils, causing a buildup of legacy mercury. Some mercury is volatilized back to the atmosphere, but most export of mercury from watersheds occurs by streamflow. Stream mercury export is episodic, in association with dissolved and particulate organic carbon, as stormflow and snowmelt flush organic-rich shallow soil horizons. The terrestrial landscape is thus a major source of mercury to downstream aquatic environments, where mercury is methylated and enters the aquatic food web. With ample organic matter and sulfur, methylmercury forms in uplands as well—in wetlands, riparian zones, and other anoxic sites. Watershed features (topography, land cover type, and soil drainage class) are often more important than atmospheric mercury deposition in controlling the amount of stream mercury and methylmercury export. While reductions in atmospheric mercury deposition may rapidly benefit lakes, the terrestrial landscape will respond only over decades, because of the large stock and slow turnover of legacy mercury. We conclude with a discussion of future scenarios and the challenge of managing terrestrial mercury.

  19. Different seasonality of nitrate export from an agricultural watershed and an urbanized watershed in Midwestern USA

    Science.gov (United States)

    Tian, S.; Youssef, M. A.; Richards, R. P.; Liu, J.; Baker, D. B.; Liu, Y.

    2016-10-01

    Land use/land cover is a critical factor affecting temporal dynamics of nitrate export from watersheds. Based on a long-term (>30 years) water quality monitoring program in the Western Lake Erie area, United States, this study compared seasonal variation of nitrate export from an agricultural watershed and an urbanized watershed. A seasonality index was adapted to quantitatively characterize seasonal variation of nitrate export from the two watersheds. Results showed that monthly nitrate concentrations from the two watersheds exhibited different seasonal variation. Seasonality index of monthly nitrate loading for the agricultural watershed is approximately 3 times of that from the urbanized watershed and the difference is statistically significant (p export from the two watersheds were mainly attributed to their distinct nitrogen sources, physical and biogeochemical settings. The declining seasonality index of monthly nitrate loading from the agricultural watershed could be partially caused by historical climate change in the study region, especially increased temperature during winter. Urbanization could be one key factor contributing to the declining seasonality index of monthly nitrate loading from the urbanized watershed. Information derived from this study have practical implications for developing proper management practices to mitigate nitrate pollution in Midwestern United States.

  20. 78 FR 9417 - Notice of Public Meeting, Coeur d'Alene District Resource Advisory Council Meeting; ID

    Science.gov (United States)

    2013-02-08

    ... Salvage Timber Sale and a presentation by the Clearwater and Nez Perce National Forests regarding a... above. ] Dated: January 29, 2013. Gary D. Cooper, District Manager. BILLING CODE 4310-GG-P...

  1. Fall Chinook Salmon Survival and Supplementation Studies in the Snake River and Lower Snake River Reservoirs, 1997 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Muir, William D.; Connor, William P.; Arnsberg, Billy D.

    1999-03-01

    In 1997, the National Marine Fisheries Service, the U.S. Fish and Wildlife Service, and the Nez Perce Tribe completed the third year of research to investigate migrational characteristics of subyearling fall chinook salmon in the Snake River Basin.

  2. 75 FR 8935 - Environmental Impact Statements and Regulations; Availability of EPA Comments

    Science.gov (United States)

    2010-02-26

    ... relative to Cooling Alternatives and the Use of Groundwater as Backup Water Source, US Army COE Section 10... Invasive Plants on Native Plant Community Stability, Sustainability and Diversity, Nez Perce,...

  3. MAPPING WATERSHED INTEGRITY FOR THE CONTERMINOUS UNITED STATES.

    Science.gov (United States)

    Watersheds provide a variety of ecosystem services valued by society. Production of these services is sensitive to watershed alteration by human activities. Flotemersch and others (2015), defined watershed integrity (WI) as the “capacity of a watershed to support and maint...

  4. Dworshak Dam Impact Assessment and Fishery Investigation, 1989 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Mauser, Gregg; Cannamela, David; Downing, Richard

    1990-06-01

    The Bonneville Power Administration (BPA) funded two 4-year research projects to develop recommendations for improving the sport fishery on Dworshak Reservoir. Research began during 1987 as a cooperative effort between the Idaho Department of Fish and Game (IDFG) and the Nez Perce Tribe of Idaho. The Nez Perce Tribe examined smallmouth bass and rainbow trout fisheries. The IDFG evaluated kokanee population dynamics and documented changes in reservoir productivity. 12 refs., 12 figs.

  5. Un puente entre filosofía académica y ensayismo libre. A propósito de Eugenio Pucciarelli, lector de Ezequiel Martínez Estrada

    Directory of Open Access Journals (Sweden)

    Gerardo Oviedo

    2010-01-01

    Full Text Available La literatura secundaria sobre el clásico mayor del ensayo argentino del siglo XX, Ezequiel Martínez Estrada, es sin duda extensa y caudalosa. No obstante ello, ha sido poco tratada una de las temáticas fundamentales presentes en el pensamiento de Martínez Estrada: su idea de la historia. Si no fuera el suyo un "pensamiento libre" que no ha ejercido la reflexión conceptualmente teórica o "sistemática", optando más bien por una retórica profundamente metaforizante, hablaríamos de la filosofía de la historia de Martínez Estrada sin más. O bien, de su singular historicismo. Su ensayismo, a pesar de ser "literatura de pensamiento", contiene también una filosofía de la historia. Esta hipótesis de lectura encuentra una clave de recepción interesante, según nuestra apreciación, en un filósofo académico que suele adscribirse, por derecho propio, a las corrientes comúnmente denominadas "historicistas" en la Argentina. Nos referimos a Eugenio Pucciarelli (1907-1995, reconocido profesor de filosofía de las Universidades Nacionales de La Plata, Buenos Aires y Tucumán. En su consideración, la "filosofía" de la historia de Martínez Estrada retoma un descubrimiento del romanticismo: la acción modeladora del medio natural sobre la historia humana. Martínez Estrada prolongará la narrativa de Sarmiento señalando la incidencia filosófico-histórica del factor telúrico. A ello Martínez Estrada añade una concepción circular de la historia que presenta rasgos de originalidad notorios, por más que no se ciñan al canon de una genealogía estrictamente académica. La recepción de Eugenio Pucciareli nos permite salvar esa distancia entre la tradición ensayística y la tradición académica.

  6. Quem muito abarca pouco abraça? : a perceção das famílias pobres multidesafiadas sobre as suas competências em diferentes níveis de apoio formal

    OpenAIRE

    Governo, Ana Rita Lopes

    2012-01-01

    Tese de mestrado, Psicologia (Secção de Psicologia Clínica e da Saúde - Núcleo de Psicologia Clínica Sistémica), Universidade de Lisboa, Faculdade de Psicologia, 2012 Compreender a relação entre as famílias pobres multidesafiadas e os profissionais dos serviços de apoio formal, é o primeiro passo para a promoção de um trabalho de intervenção eficaz com esta população. A presente investigação estudou, através de uma metodologia mista, a perceção que as famílias pobres multidesafiadas têm...

  7. Southern Watersheds Common Reedgrass Monitoring Plan

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Southern Watersheds Common Reedgrass Project is an interagency effort to increase public awareness of the common reedgrass problem, demonstrate effective control...

  8. Southern Watersheds Common Reedgrass Project Progress Report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Southern Watersheds includes the drainages of the Northwest River, the North Landing River, and Back Bay in the southeastern corner of Virginia. Common reedgrass...

  9. Tribal boundaries in the Nass watershed

    National Research Council Canada - National Science Library

    Sterritt, N. J; Marsden, S; Galois, R; Grant, P.R; Overstall, R

    1998-01-01

    Tribal Boundaries in the Nass Watershed makes an important contribution to our understanding on how First Nations traditionally establish their rights to territory and to how these rights are played...

  10. Watershed Boundaries, Published in unknown, SWGRC.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Watershed Boundaries dataset, was produced all or in part from Road Centerline Files information as of unknown. Data by this publisher are often provided in...

  11. Watershed impervious cover relative to stream location

    Data.gov (United States)

    U.S. Environmental Protection Agency — Estimates of watershed (12-digit huc) impervious cover and impervious cover near streams and water body shorelines for three dates (2001, 2006, 2011) using NLCD...

  12. Blob Objects Analysis Using Watershed Transformation

    Institute of Scientific and Technical Information of China (English)

    2000-01-01

    This paper presents a novel method for overlapping or touching blob object ( particles ) segmentation. It is based on the watershed transformation, one of the most powerful image analysis tools provided by mathematical morphology. In this method, we first build the distance function of the blob image, and then extract the regional minima as markers, and finally the watershed transformation is performed. The applications of this algorithm illustrated using the examples of red blood cell segmentation and broken medicine pill detection.

  13. Los condes Fruela Muñoz y Pedro Flaínez: la formación de un patrimonio señorial

    Directory of Open Access Journals (Sweden)

    García Leal, Alfonso

    2006-06-01

    Full Text Available

    The Asturian count Fruela Muñoz and the León count Pedro Flaínez acquired an inmense wealth during their lives. In the case of the former, it mostly concentrated on the area known as Viñayo, whereas the latter's in Valdoré, both in León. They developed their public activities in the second half of the 10th century and the first half of the 11th century. Their biographies and activities have many things in common. They both enjoyed a long life in the mountain area of Asturias and León and during which they acquired a great number of properties from legacies and from the profits of their own businesses and judicial acts. The marriage of Fruela Muñoz's only daughter to Pedro Laínez's son ensured the cohesion of their properties, which were transmitted through several generations until their descendant María Núñez donated them to the monastery of St. María de Otero de las Dueñas in León. In this study, we shall be paying attention to their biographies, to the emergence of their wealth and its description, in the light of the documents kept in the count archives from the oldest fund of parchments at the monastery of Otero.



    En la segunda mitad del siglo X y en la primera del XI se desarrolla la actividad pública del conde asturiano Fruela Muñoz y del conde leonés Pedro Flaínez, quienes a lo largo de su vida reúnen un importante patrimonio que, en el caso del primero, se concentra sobre todo en torno a la localidad leonesa de Viñayo y, en el del segundo, de Valdoré. La biografía y actividad de ambos condes tienen muchos puntos en común. Destaca una dilatada vida en la zona de la montaña asturleonesa y la acumulación de bienes inmuebles, fruto por un lado de la herencia y por otro de la gestión de sus propios ingresos, una notable parte de los cuales procede de su participación en actos judiciales. Luego, el

  14. Using Four Capitals to Assess Watershed Sustainability

    Science.gov (United States)

    Pérez-Maqueo, Octavio; Martinez, M. Luisa; Vázquez, Gabriela; Equihua, Miguel

    2013-03-01

    The La Antigua watershed drains into the Gulf of Mexico and can be considered as one of the most important areas in Mexico because of its high productivity, history, and biodiversity, although poverty remains high in the area in spite of these positive attributes. In this study, we performed an integrated assessment of the watershed to recommend a better direction toward a sustainable management in which the four capitals (natural, human, social, and built) are balanced. We contrasted these four capitals in the municipalities of the upper, middle and lower watershed and found that natural capital (natural ecosystems and ecosystem services) was higher in the upper and middle watershed, while human and social capitals (literacy, health, education and income) were generally higher downstream. Overall, Human Development Index was negatively correlated with the percentage of natural ecosystems in the watershed, especially in the upper and lower watershed regions. Our results indicate that natural capital must be fully considered in projections for increasing human development, so that natural resources can be preserved and managed adequately while sustaining intergenerational well-being.

  15. La légalisation de l’eugénisme en Espagne. Les théories de Jiménez de Asúa dans Libertad de amar y derecho a morir (1928

    Directory of Open Access Journals (Sweden)

    María Flores Rodríguez

    2013-03-01

    Full Text Available Cet article étudie les théories eugénistes du juriste et socialiste espagnol Luis Jiménez de Asúa, exposées dans son livre Libertad de amar y derecho a morir (1928, dont l’examen met en évidence l’importance des débats autour de la légalisation de l’eugénisme en Espagne. En démontrant sa viabilité juridique, fondée sur le respect du droit et des principes socialistes, Jiménez de Asúa ouvre de nouvelles perspectives au mouvement eugéniste espagnol, laissant entrevoir les contours d’un nouvel ordre, au détriment de la Dictature de Primo de Rivera, déjà sclérosée.

  16. Climate change and watershed mercury export in a Coastal Plain watershed

    Science.gov (United States)

    Heather Golden; Christopher D. Knightes; Paul A. Conrads; Toby D. Feaster; Gary M. Davis; Stephen T. Benedict; Paul M. Bradley

    2016-01-01

    Future changes in climatic conditions may affect variations in watershed processes (e.g., hydrological, biogeochemical) and surface water quality across a wide range of physiographic provinces, ecosystems, and spatial scales. How such climatic shifts will impact watershed mercury (Hg) dynamics and hydrologically-driven Hg transport is a significant concern.

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

    OpenAIRE

    Atuesta Ortiz, María

    2012-01-01

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

  18. Una revisión sobre la aproximación de Martínez y Roca (2001 a la economía ecológica

    Directory of Open Access Journals (Sweden)

    Jorge Vicente Ruiz Linares

    2005-01-01

    Full Text Available Con la presente revisión se pretende introducir el tema de la economíaecológica en general y en particular el libro de Martínez y Roca (2001.Si los recursos naturales no fueran limitados y así mismo no hubieseentropía causada por la actividad económica, no habría lugar para laeconomía.

  19. Ignacio Arellano y Carlos Mata, Vida y obra de Lope de Vega - José Florencio Martínez, Biografía de Lope de Vega. 1562-1635. Un friso literario del Siglo de Oro

    Directory of Open Access Journals (Sweden)

    Enrico Di Pastena

    2012-12-01

    Full Text Available Review of Ignacio Arellano y Carlos Mata, Vida y obra de Lope de Vega, Homo Legens (Bibliotheca Homolegens, 63, Madrid, 2011, 334 pp. ISBN: 978-84-92518-72-2 y José Florencio Martínez, Biografía de Lope de Vega. 1562-1635. Un friso literario del Siglo de Oro, PPU, Barcelona, 2011, 783 pp. ISBN: 978-84-477-1114-7.

  20. El Retrato de la última hija de Juan Bautista Martínez del Mazo, boceto para el Retrato de la familia del pintor del Kunsthistorisches Museum de Viena

    Directory of Open Access Journals (Sweden)

    Gutiérrez Pastor, Ismael

    2005-09-01

    Full Text Available Por adquisición en el comercio de antigüedades francés se conserva en una colección particular de Bilbao el Retrato de una niña (fig. 2, pintura de carácter velazqueño, que puede ser clasificada perfectamente como obra indiscutible del pintor Juan Bautista Martínez del Mazo (¿Beteta?, Cuenca, 1611-Madrid, 1667, tanto por la característica soltura técnica, como por tratarse de uno de los modelos infantiles que aparecen en el Retrato de la familia del pintor del Kunsthistorisches Museum de Viena (fig. 3, en relación con la cual se conoce otro Retrato de Luis Martínez del Mazo conservado en la Dulwich Picture Gallery de Londres (fig. 1. La importancia de la obra es notable no sólo porque incrementa el catálogo de Martínez del Mazo con una obra indudable, sino también por contribuir a precisar la cronología de la pintura conservada en Viena...

  1. Lessons From Watershed-Based Climate Smart Agricultural Practices In Jogo-Gudedo Watershed Ethiopia

    Directory of Open Access Journals (Sweden)

    Abera Assefa

    2015-08-01

    Full Text Available Abstract Land degradation is the most chronic problem in the Ethiopia. Soil erosion and denudation of vegetation covers are tending to enlarge the area of degraded and west land in semi-arid watersheds. It is therefore watershed management is believed as a holistic approach to create a climate smart landscape that integrate forestry agriculture pasture and soil water management with an objective of sustainable management of natural resources to improve livelihood. This approach pursues to promote interactions among multiple stakeholders and their interests within and between the upstream and downstream locations of a watershed. Melkassa Agricultural Research Centre MARC has been implementing integrated watershed management research project in the Jogo-gudedo watershed from 2010-2014 and lessons from Jogo-gudedo watershed are presented in this research report. Participatory action research PAR was implemented on Soil and Water Conservation SWC area enclosure Agroforestry AF Conservation Tillage CT energy saving stove drought resistance crop varieties in the Jogo-gudedo watershed. Empirical research and action research at plot level and evaluation of introduced technologies with farmers through experimental learning approach and documentation were employed. The participatory evaluation and collective action of SWC and improved practices brought high degree of acceptance of the practices and technologies. This had been ratified by the implementation of comprehensive watershed management action research which in turn enabled to taste and exploit benefits of climate-smart agricultural practices. Eventually significant reduction on soil loss and fuel wood consumption improvements on vegetation cover and crop production were quantitatively recorded as a good indicator and success. Field visit meetings trainings and frequent dialogues between practitioners and communities at watershed level have had a help in promoting the climate smart agriculture

  2. Índice de sitio para Pinus chiapensis (Martínez Andresen, en los estados de Veracruz y Puebla, México

    Directory of Open Access Journals (Sweden)

    M. Rodríguez-Acosta

    2005-01-01

    Full Text Available Se realizó una estimación del índice de sitio para Pinus chiapensis (Martínez Andresen, en el bosque natural de los municipios de Atzalan, Veracruz, Tlatlauquitepec y Yaonáhuac, Puebla, México. La base de datos se generó con 31 árboles dominantes y codominantes utilizando la metodología de análisis troncal, para obtener un total de 358 pares de datos de edad-altura. Los modelos exponenciales: poli-anamórfico con cambio continuo y poli-anamórfico con cambio discreto; los cuales fueron ajustados con procedimientos no lineales utilizando el sistema de análisis estadístico SAS y se compararon en sus versiones polimórficas utilizando el método de la diferencia algebraica. Los modelos de Chapman-Richards, Payandeh y Wang, Schumacher, mostraron un ajuste aceptable obteniendo un pseudo coeficiente de determinación de 0.98, 0.98 y 0.96 respectivamente. Se construyeron curvas polimórficas con dos de los modelos seleccionados y se fijaron tres índices de sitio: 20, 25 y 30 m a una edad base de 25 años.

  3. Los trazos de la disgregación: el juicio político al Gobernador Martínez Baca (Mendoza, 1973-1974

    Directory of Open Access Journals (Sweden)

    María Virginia Mellado

    2009-01-01

    Full Text Available Este trabajo examina la modalidad que exhibieron las divisiones internas del peronismo en la provincia de Mendoza, fenómeno que corroyó la experiencia gubernamental abierta en 1973. Ganadas las elecciones por el peronista Alberto Martínez Baca, se suscitaron una serie de conflictos internos en el justicialismo que perjudicaron la administración estatal de los asuntos públicos. La puja intestina entre los distintos sectores que conformaron el peronismo se dirimió por medio de la realización de un juicio político al gobernador, salida ins - titucional que difirió de las alcanzadas en otros contextos provinciales. A través del análisis de las causales del juicio, de las estrategias lleva - das adelante por la defensa y la acusación, el artículo busca restituir el itinerario del peronismo mendocino, divisando la heterogeneidad de perspectivas y miradas que lo integraban, como así también la diversi - dad de actores y sectores sociales que habían adscrito a su proyecto.

  4. Evaluation de la neutralité organoleptique des huiles raffinées à l’aide d’un nez électronique

    Directory of Open Access Journals (Sweden)

    Vigneron Pierre-Yves

    2002-07-01

    Full Text Available Aucune technique analytique ne permet d’évaluer en contrôle industriel si une huile raffinée est de goût neutre c’est à dire dépourvue d’un goût spécifique. La détermination des composés volatils totaux par chromatographie en phase gazeuse de l’espace de tête ne parvient pas à répondre à ce problème puisque cette technique bien que rapide donne des résultats qui ne sont pas corrélés avec la note globale donnée par un panel de dégustation. Les nez électroniques équipés de semi-conducteurs donnent des résultats encourageants dans le cas des huiles de tournesol mais les capteurs actuellement disponibles sont insensibles aux flaveurs de certaines huiles comme les huiles de colza. Quoique de tels équipements ne puissent remplacer à ce jour l’évaluation sensorielle, ils peuvent être un contrôle complémentaire intéressant pour alléger le Contrôle Qualité quotidien d’une production d’huile raffinée.

  5. Características tecnológicas de la madera de palo morado (Peltogyne mexicana Martínez de tierra colorada, Guerrero, México

    Directory of Open Access Journals (Sweden)

    J. Navarro-Martínez

    2005-01-01

    Full Text Available El presente trabajo contribuye al conocimiento de las características y propiedades tecnológicas de la madera de Palo morado (Peltogyne mexicana Martínez, mediante la caracterización anatómica, porcentaje de elementos y determinación de las propiedades físicas y tres mecánicas. Se colectaron dos árboles en Tierra Colorada Guerrero. El material se obtuvo de trozas a 1.30 m de altura. Para el estudio macroscópico se usaron muestras de 7 x 15 x 1 cm y para el microscópico se elaboraron preparaciones fijas de cortes y de material disociado. La madera presenta un color violeta intenso, porosidad difusa, parénquima en bandas y aliforme confluente con cristales, los elementos de vaso son cortos de diámetro medio, con inclusiones, rayos uniseriados, biseriados, triseriados y raramente multiseriados; las fibras son de tipo libriforme de longitud media, diámetro fino y pared gruesa, presenta densidad básica, contracciones y dureza alta.

  6. Procesos de (desmitificación en la novella de perón y Santa Evita de Tomás Eloy Martínez

    Directory of Open Access Journals (Sweden)

    Diógenes Fajardo Valenzuela

    1996-12-01

    Full Text Available Al estudiar la Hamada Generación parricida de 1955, en la Argentina, notaba cómo «no obstante el peso del peronismo sobre los escritores argentinas, todavía no se había escrito una gran novela sobre el tema». Hoy encuentro respuesta eficaz a esta carencia en las dos novelas de Tomás Eloy Martínez que vienen a incrementar la ya larga lista de textos que directa o indirectamente se refieren al Peronismo. Precisamente este narrador se encarga de ilustrar a su lector, en Santa Evita, sobre algunos textos, básicamente cuentos o ensayos en los cuales los autores del Rió de la Plata han reelaborado el tema casi vedado del peronismo. Para el periodista/novelista argentino «algunos de los mejores relatos de los años cincuenta son una parodia» de la muerte de "ella", de "esa mujer", puesto que «los escritores necesitaban olvidar a Evita, conjurar su fantasma.» (SE: 198

  7. La conformación de la provincia jesuítica de Toledo en torno al generalato de Diego Laínez 1556-1565

    Directory of Open Access Journals (Sweden)

    Martín López, David

    2014-12-01

    Full Text Available The newest Jesuits soon began incardinated in the Iberian territory, home of its founder. As one of the most important territories of Catholic Christianity, soon saw the need to distribute what would soon become a large crown in a number of provinces for a more effective government and evangelization. After the first division, at the time of the Spanish general Lines were the final foundations of penta-provincialization between Portugal, Castile, Aragon, Andalusia and —novelty— Toledo.La novísima Compañía de Jesús empezó pronto a incardinarse en el territorio ibérico, patria de su fundador. Como uno de los territorios más importantes de la Cristiandad católica, pronto se vio la necesidad de distribuir lo que pronto sería una gran corona en una serie de provincias para unos más eficaces gobierno y evangelización. Después de una primera división, en la época del generalato del español Laínez se pusieron las bases de la pentaprovincialización definitiva entre Portugal, Castilla, Aragón, Bética y —la novedad— Toledo.

  8. Nitrogen Saturation in Highly Retentive Watersheds?

    Science.gov (United States)

    Daley, M. L.; McDowell, W. H.

    2009-12-01

    Watershed managers are often concerned with minimizing the amount of N delivered to N-limited estuaries and coastal zones. A major concern is that watersheds might reach N saturation, in which N delivered to coastal zones increases due to declines in the efficiency of N retention despite constant or even reduced N inputs. We have quantified long-term changes in N inputs (atmospheric deposition, imported food and agricultural fertilizers), outputs (N concentration and export) and retention in the urbanizing Lamprey River watershed in coastal NH. Overall, the Lamprey watershed is 70% forested, receives about 13.5 kg N/ha/yr and has a high rate of annual N retention (85%). Atmospheric deposition (8.7 kg/ha/yr) is the largest N input to the watershed. Of the 2.2 kg N/ha/yr exported in the Lamprey River, dissolved organic N (DON) is the dominant form (50% of total) and it varies spatially throughout the watershed with wetland cover. Nitrate accounts for 30% of the N exported, shows a statistically significant increase from 1999 to 2009, and its spatial variability in both concentration and export is related to human population density. In sub-basins throughout the Lamprey, inorganic N retention is high (85-99%), but the efficiency of N retention declines sharply with increased human population density and associated anthropogenic N inputs. N assimilation in the vegetation, denitrification to the atmosphere and storage in the groundwater pool could all be important contributors to the current high rates of N retention. The temporal and spatial patterns that we have observed in nitrate concentration and export are driven by increases in N inputs and impervious surfaces over time, but the declining efficiency of N retention suggests that the watershed may also be reaching N saturation. The downstream receiving estuary, Great Bay, already suffers from low dissolved oxygen levels and eelgrass loss in part due to N loading from the Lamprey watershed. Targeting and reducing

  9. Community DECISIONS: stakeholder focused watershed planning.

    Science.gov (United States)

    Bosch, Darrell; Pease, James; Wolfe, Mary Leigh; Zobel, Christopher; Osorio, Javier; Cobb, Tanya Denckla; Evanylo, Greg

    2012-12-15

    Successful watershed planning can be enhanced by stakeholder involvement in developing and implementing plans that reflect community goals and resource limitations. Community DECISIONS (Community Decision Support for Integrated, On-the-ground Nutrient Reduction Strategies) is a structured decision process to help stakeholders evaluate strategies that reduce watershed nutrient imbalances. A nutrient accounting algorithm and nutrient treatment database provide information on nutrient loadings and costs of alternative strategies to reduce loadings. Stakeholders were asked to formulate goals for the North Fork Shenandoah River Watershed in Virginia and select among strategies to achieve those goals. The Vector Analytic Hierarchy Process was used to rank strategies. Stakeholders preferred a Maximum strategy that included point source upgrades, riparian buffers, no-till corn silage, wheat cover, and bioretention filters in developed areas. Participants generally agreed that the process helped improve communication among stakeholders, was helpful for watershed planning, and should be used for TMDL (Total Maximum Daily Load) planning. Participants suggested more attention be paid to ensuring that all relevant issues are addressed and all information needed to make decisions is available. Watershed planning should provide stakeholders with clear scientific information about physical and socioeconomic processes. However, planning processes must give stakeholders adequate time to consider issues that may not have been addressed by existing scientific models and datasets.

  10. Land protection plan : Bear River Watershed Conservation Area

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The U.S. Fish and Wildlife Service is establishing a conservation area for the Bear River watershed in Idaho, Utah, and Wyoming. The Bear River Watershed...

  11. DNR Watersheds - DNR Level 04 - HUC 08 - Majors

    Data.gov (United States)

    Minnesota Department of Natural Resources — These data consists of 81 watershed delineations in one seamless dataset of drainage areas called Minnesota Department of Natural Resources (DNR) Major Watersheds....

  12. How Sustainable is Participatory Watershed Development in India?

    NARCIS (Netherlands)

    Bouma, J.; Soest, van D.P.; Bulte, E.H.

    2007-01-01

    Watershed conservation is widely recognized as a major strategy for rural development throughout the developing world. In India, the apparent success of participatory approaches to watershed development resulted in a decentralization of project planning, implementation, and management to local

  13. US Forest Service Watershed Condition Class and Assessment Status 2011

    Data.gov (United States)

    US Forest Service, Department of Agriculture — The map contains the Watershed Condition Class and assessment status for the assessment year of 2011. The layer is symbolized by the Watershed Condition Class for...

  14. Information Management for the Watershed Approach in the Pacific Northwest

    Science.gov (United States)

    A collection of interviews with leaders and key participants in the statewide watershed approach activities in the State of Washington. Additionally, there are reviews of Washington’s statewide watershed activities in a case study fashion.

  15. Relação entre a perceção de necessidade de tratamento ortodôntico por parte dos pacientes que se dirigem à CDEM, com a necessidade normativa atribuída através dos índices DAI e ICON

    OpenAIRE

    Antunes, Mafalda Inês Silva

    2016-01-01

    Dissertação para obtenção do grau de Mestre no Instituto Superior de Ciências da Saúde Egas Moniz Objetivos: Avaliar a correlação entre a perceção da necessidade de tratamento ortodôntico dos pacientes que se dirigem à Clínica Universitária Egas Moniz, com os resultados obtidos a partir de dois índices de necessidade de tratamento ortodôntico: DAI (Dental Aesthetic Index) e ICON (Index of Complexity, Outcome and Need), e assim compreender até que ponto a sua perceção e os resultados dos ín...

  16. Application of watershed modeling system (WMS) for integrated management of a watershed in Turkey.

    Science.gov (United States)

    Erturk, Ali; Gurel, Melike; Baloch, Mansoor Ahmed; Dikerler, Teoman; Varol, Evren; Akbulut, Neslihan; Tanik, Aysegul

    2006-01-01

    Watershed models, that enable the quantification of current and future pollution loading impacts, are essential tools to address the functions and conflicts faced in watershed planning and management. In this study, the Watershed Modeling System (WMS) version 7.1 was used for the delineation of boundaries of Koycegiz Lake-Dalyan Lagoon watershed located in the southwest of Turkey at the Mediterranean Sea coast. A Digital Elevation Model (DEM) was created for one of the major streams of the watershed, namely, Kargicak Creek by using WMS, and DEM data were further used to extract stream networks and delineate the watershed boundaries. Typical properties like drainage areas, characteristic length and slope of sub-drainage areas have also been determined to be used as model inputs in hydrological and diffuse pollution modeling. Besides, run-off hydrographs for the sub-drainages have been calculated using the Rational Method, which produces valuable data for calculating the time variable inflow and input pollution loads to be further utilized in the future water quality models of the Creek. Application of WMS in the study has shown that, it is capable to visualize the results in establishing watershed management strategies.

  17. Identifying and Classifying Pollution Hotspots to Guide Watershed Management in a Large Multiuse Watershed.

    Science.gov (United States)

    Su, Fangli; Kaplan, David; Li, Lifeng; Li, Haifu; Song, Fei; Liu, Haisheng

    2017-03-03

    In many locations around the globe, large reservoir sustainability is threatened by land use change and direct pollution loading from the upstream watershed. However, the size and complexity of upstream basins makes the planning and implementation of watershed-scale pollution management a challenge. In this study, we established an evaluation system based on 17 factors, representing the potential point and non-point source pollutants and the environmental carrying capacity which are likely to affect the water quality in the Dahuofang Reservoir and watershed in northeastern China. We used entropy methods to rank 118 subwatersheds by their potential pollution threat and clustered subwatersheds according to the potential pollution type. Combining ranking and clustering analyses allowed us to suggest specific areas for prioritized watershed management (in particular, two subwatersheds with the greatest pollution potential) and to recommend the conservation of current practices in other less vulnerable locations (91 small watersheds with low pollution potential). Finally, we identified the factors most likely to influence the water quality of each of the 118 subwatersheds and suggested adaptive control measures for each location. These results provide a scientific basis for improving the watershed management and sustainability of the Dahuofang reservoir and a framework for identifying threats and prioritizing the management of watersheds of large reservoirs around the world.

  18. Watershed modeling and monitoring for assessing nutrient ...

    Science.gov (United States)

    Presentation for the American Water Works Association Water Sustainability Conference. The presentation highlights latest results from water quality trading research conducted by ORD using the East Fork Watershed in Southwestern Ohio as a case study. The watershed has a nutrient enrichment problem that is creating harmful algal blooms in a reservoir used for drinking water and recreation. Innovative modeling and monitoring is combined to understand how to best manage this water quality problem and costs associated with this endeavor. The presentation will provide an overview of the water quality trading feasibility research. The research includes the development and evaluation of innovative modeling and monitoring approaches to manage watersheds for nutrient pollution using a whole systems approach.

  19. Watershed Boundaries, Watershed Boundaries, Published in 2002, 1:4800 (1in=400ft) scale, Iredell County GIS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Watershed Boundaries dataset, published at 1:4800 (1in=400ft) scale as of 2002. It is described as 'Watershed Boundaries'. Data by this publisher are often...

  20. Regionalization of SWAT Model Parameters for Use in Ungauged Watersheds

    Directory of Open Access Journals (Sweden)

    Indrajeet Chaubey

    2010-11-01

    Full Text Available There has been a steady shift towards modeling and model-based approaches as primary methods of assessing watershed response to hydrologic inputs and land management, and of quantifying watershed-wide best management practice (BMP effectiveness. Watershed models often require some degree of calibration and validation to achieve adequate watershed and therefore BMP representation. This is, however, only possible for gauged watersheds. There are many watersheds for which there are very little or no monitoring data available, thus the question as to whether it would be possible to extend and/or generalize model parameters obtained through calibration of gauged watersheds to ungauged watersheds within the same region. This study explored the possibility of developing regionalized model parameter sets for use in ungauged watersheds. The study evaluated two regionalization methods: global averaging, and regression-based parameters, on the SWAT model using data from priority watersheds in Arkansas. Resulting parameters were tested and model performance determined on three gauged watersheds. Nash-Sutcliffe efficiencies (NS for stream flow obtained using regression-based parameters (0.53–0.83 compared well with corresponding values obtained through model calibration (0.45–0.90. Model performance obtained using global averaged parameter values was also generally acceptable (0.4 ≤ NS ≤ 0.75. Results from this study indicate that regionalized parameter sets for the SWAT model can be obtained and used for making satisfactory hydrologic response predictions in ungauged watersheds.

  1. Watershed Management Optimization Support Tool (WMOST) v2: Theoretical Documentation

    Science.gov (United States)

    The Watershed Management Optimization Support Tool (WMOST) is a decision support tool that evaluates the relative cost-effectiveness of management practices at the local or watershed scale. WMOST models the environmental effects and costs of management decisions in a watershed c...

  2. Guiding principles for management of forested, agricultural, and urban watersheds

    Science.gov (United States)

    Pamela J. Edwards; Jon E. Schoonover; Karl W.J. Williard

    2015-01-01

    Human actions must be well planned and include consideration of their potential influences on water and aquatic ecosystems - such consideration is the foundation of watershed management. Watersheds are the ideal land unit for managing and protecting water resources and aquatic health because watersheds integrate the physical, biological and chemical processes within...

  3. Wind River Watershed Restoration: 1999 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Connolly, Patrick J.

    2001-09-01

    This document represents work conducted as part of the Wind River Watershed Restoration Project during its first year of funding through the Bonneville Power Administration (BPA). The project is a comprehensive effort involving public and private entities seeking to restore water quality and fishery resources in the basin through cooperative actions. Project elements include coordination, watershed assessment, restoration, monitoring, and education. Entities involved with implementing project components are the Underwood Conservation District (UCD), USDA Forest Service (USFS), U.S. Geological Survey--Columbia River Research Lab (USGS-CRRL), and WA Department of Fish & Wildlife (WDFW). Following categories given in the FY1999 Statement of Work, the broad categories, the related objectives, and the entities associated with each objective (lead entity in boldface) were as follows: Coordination--Objective 1: Coordinate the Wind River watershed Action Committee (AC) and Technical Advisory Committee (TAC) to develop a prioritized list of watershed enhancement projects. Monitoring--Objective 2: Monitor natural production of juvenile, smolt, and adult steelhead in the Wind River subbasin. Objective 3: Evaluate physical habitat conditions in the Wind River subbasin. Assessment--Objective 4: Assess watershed health using an ecosystem-based diagnostic model that will provide the technical basis to prioritize out-year restoration projects. Restoration--Objective 5: Reduce road related sediment sources by reducing road densities to less than 2 miles per square mile. Objective 6: Rehabilitate riparian corridors, flood plains, and channel morphology to reduce maximum water temperatures to less than 61 F, to increase bank stability to greater than 90%, to reduce bankfull width to depth ratios to less than 30, and to provide natural levels of pools and cover for fish. Objective 7: Maintain and evaluate passage for adult and juvenile steelhead at artificial barriers. Education

  4. The Chena River Watershed Hydrology Model

    Science.gov (United States)

    2012-04-01

    ER D C/ CR R EL T R -1 2 -1 The Chena River Watershed Hydrology Model C ol d R eg io n s R es ea rc h an d E n gi n ee ri n g La...14 Table 6. Estimated monthly ET using Hargreaves method and pan...using water balance method A generalized water balance for the Chena River watershed can be written as mS P S ET R     (3) where P

  5. Imagen de Hugo Chávez y su gobierno: Tomás Eloy Martínez, Mario Vargas Llosa y Carlos Fuentes

    Directory of Open Access Journals (Sweden)

    Antonio Casella

    2015-09-01

    Full Text Available El 2002 puede ser considerado un año crítico en la vida política venezolana. La promulgación inconsulta de más de 40 leyes por parte del Poder Ejecutivo a finales del año 2001 inició una sucesión de hechos que concluyeron en una huelga general que se inició en diciembre de 2002 y se suspendió al año siguiente. Estos hechos produjeron opiniones en todo el mundo. Entre tales opiniones encontramos la de tres renombrados escritores latinoamericanos: Tomás Eloy Martínez, Mario Vargas Llosa y Carlos Fuentes. El presente trabajo intenta reconstruir a partir del análisis semántico - pragmático la imagen que estos escritores poseían de Hugo Chávez y de su gobierno para ese momento. El corpus analizado lo constituyen el artículo de opinión La soga al cuello, del primer escritor mencionado; la charla titulada ¿Por qué fracasa América Latina? dictada por Vargas Llosa y una declaración de prensa ofrecida por Carlos Fuentes en Barcelona España y que el periodista tituló Carlos Fuentes no aboga por una salida militar. Estos textos fueron producidos en tres momentos diferentes de ese año y por lo tanto responden de una u otra forma a los momentos específicos en los que se produjeron.

  6. REHABILITACIÓN DE SUELOS SALINO-SÓDICOS: ESTUDIO DE CASO EN EL DISTRITO DE RIEGO 086, JIMÉNEZ, TAMAULIPAS, MÉXICO

    Directory of Open Access Journals (Sweden)

    Juana Irma Manzano Banda

    2014-06-01

    Full Text Available Se evaluó el efecto de la aplicación de estiércol bovino, yeso, ácido sulfúrico y lavado de suelos sobre la concentración de sales solubles y proporción de sodio en dos suelos salino-sódicos, provenientes del Distrito de Riego 086 de Jiménez, Tamaulipas, México. Se utilizaron macetas con 6 kg de suelo bajo condiciones de invernadero para ensayar dos niveles de salinidad-sodicidad (suelo Carretas con nivel moderado y suelo Macahuistle con nivel alto, dos mejoradores inorgánicos (yeso y ácido sulfúrico y un mejorador orgánico (estiércol. Se utilizó un diseño experimental completamente al azar con arreglo factorial 2 × 2 × 3. Las variables de respuesta fueron conductividad eléctrica (CE, porciento de sodio intercambiable (PSI y pH. La salinidad inicial en el suelo Carretas, con CE = 7.75 dS m-1 y Macahuistle con CE = 22.2 dS m-1, disminuyó a menos de 4 dS m-1. El PSI inicial del suelo Carretas fue 18.4 y el del suelo Macahuistle 34, valores que se abatieron a niveles menores de 8. El pH inicial de 7.8 en el suelo Carretas y 8 en el suelo Macahuistle, disminuyeron a un valor de 7.4 con la aplicación de estiércol y ácido sulfúrico. El lavado redujo la salinidad y sodicidad de ambos suelos hasta niveles satisfactorios para cultivos convencionales, con y sin de la aplicación de estiércol bovino, yeso y ácido sulfúrico.

  7. El Vignola del Colegio de Arquitectos de Valencia y sus retablos de traza sevillana: Juan Martínez Montañés

    Directory of Open Access Journals (Sweden)

    Navarrete Prieto, Benito

    2005-09-01

    Full Text Available Three drawings of altarpieces executed by the Sevillian sculptor Juan Martinez Montañés, preserved in the copy of Vignola's architectural treatise in the Colegio de Arquitectos de Valencia are analyzed here. The first drawing is a preliminary study for the altarpiece of the Immaculate Conception in the Parrochial Church of El Pedroso (Seville. The second drawing, also a preliminary idea, is for the lost altarpiece of the Dominican monastery of Portacelli in Seville, from which only the figure of St Dominic of Guzman flagellating himself has survived (Museo de Bellas Artes de Sevilla. The third is the model for the type of altarpiece-tabernacle used by Montañés in the Convent of Santa Clara (Seville. The author also points out the origin of certain elements of Montañés's designs in the prints of Vignola's treatise.

    Presentamos un análisis de tres de los dibujos de retablos que se conservan en el ejemplar del Vignola del Colegio de Arquitectos de Valencia y que pertenecen al escultor sevillano Juan Martínez Montañés. El primero de ellos es preparatorio para el retablo de la Inmaculada de la iglesia parroquial del Pedroso (Sevilla, conservado in situ actualmente. El segundo es para el perdido Retablo de los dominicos de Portacoeli de Sevilla, del que se conserva el Santo Domingo de Guzman azotándose en el Museo de Bellas Artes de Sevilla, y el tercero es modelo para la tipología del Montañés del Retablo-Tabernáculo en la iglesia del convento de Santa Clara de Sevilla, estudiándose además el origen de algunos elementos de Montañés en los propios grabados del libro de Vignola.

  8. Francisco A. Ortega Martínez y Yobenj Aucardo Chicangana-Bayona, eds. Conceptos fundamentales de la cultura política de la Independencia.

    Directory of Open Access Journals (Sweden)

    Margarita Garrido

    2016-07-01

    Full Text Available El libro editado por Francisco Ortega Martínez y Yobenj Aucardo Chicangana-Bayona es, en buena parte, producto de una investigación colectiva sobre los lenguajes políticos del período de la Independencia neogranadina, iniciada ya hace más de siete años con un grupo de estudiantes de maestría de la Universidad Nacional que, al ampliar sus fronteras, ha involucrado a otros investigadores nacionales y extranjeros, con quienes discute su propuesta metodológica y de principios con respecto a la historia conceptual. Lo interesante es que el libro no es la respuesta a un llamado a enviar artículos que más o menos se acomoden a unos temas y problemas, sino el resultado de lecturas conjuntas, debates y reflexiones que le permitió compartir a los autores lo que en su momento entendían por historia conceptual y por cultura política. Así, decidieron formular preguntas que no solo dieran cuenta de la semántica histórica sino que además, como lo plantean en la introducción, indagan por las experiencias que alimentaron los sentidos dados a un concepto y las expectativas que despertaron entre quienes lo usaron. Los conceptos a trabajar fueron escogidos, entendiendo que tenían esa calidad precisamente por haber estado en el centro de los debates por el sentido y el significado de los acontecimientos; porque fue con esos conceptos que los contemporáneos reflexionaron y elaboraron las experiencias vividas.

  9. Fotogenia literaria en Carreteras secundarias, de Ignacio Martínez de Pisón: un viaje de ida y vuelta

    Directory of Open Access Journals (Sweden)

    García-Abad García, M. Teresa

    2005-06-01

    Full Text Available The cinema, his synthetic character, and the dialogue that it establishes from the origin with other arts as literature, has not stopped offering a wide space of synergies for the adaptation practice and for the study of confluence areas between image and word. New generations of writers and directors propiciate across their work an opening that, beside integrating the expressive resources of the literature and the screen, consider the text as a productive and plural activity, capable of being spread in a stereophony that postpones its meaning in every process of reading, making it coincide with a practice of writing and creation. Ignacio Martinez de Pisón's literature contains sugerent keys to advance in the dialogue between literature and cinema in current Spanish narrative.El cine, su carácter sintético, y el diálogo que desde el origen establece con otras artes como la literatura, no han dejado de ofrecer un espacio amplio de sinergias para la práctica adaptativa y para la reflexión acerca de los ámbitos de confluencia entre la imagen y la palabra. Las generaciones de escritores y de directores más jóvenes propician a través de su obra una apertura que, además de integrar los recursos expresivos de la literatura y la pantalla, considera al texto como una actividad productiva y plural capaz de diseminarse en una estereofonía que aplaza su significado en cada proceso de lectura haciéndolo coincidir con una práctica de escritura y de creación. La literatura de Martínez de Pisón contiene claves sugerentes para desentrañar este diálogo entre literatura y cine en la narrativa española actual.

  10. Francisco A. Ortega Martínez y Yobenj Aucardo Chicangana-Bayona, eds. Conceptos fundamentales de la cultura política de la Independencia.

    Directory of Open Access Journals (Sweden)

    Margarita Garrido

    2016-07-01

    Full Text Available El libro editado por Francisco Ortega Martínez y Yobenj Aucardo Chicangana-Bayona es, en buena parte, producto de una investigación colectiva sobre los lenguajes políticos del período de la Independencia neogranadina, iniciada ya hace más de siete años con un grupo de estudiantes de maestría de la Universidad Nacional que, al ampliar sus fronteras, ha involucrado a otros investigadores nacionales y extranjeros, con quienes discute su propuesta metodológica y de principios con respecto a la historia conceptual. Lo interesante es que el libro no es la respuesta a un llamado a enviar artículos que más o menos se acomoden a unos temas y problemas, sino el resultado de lecturas conjuntas, debates y reflexiones que le permitió compartir a los autores lo que en su momento entendían por historia conceptual y por cultura política. Así, decidieron formular preguntas que no solo dieran cuenta de la semántica histórica sino que además, como lo plantean en la introducción, indagan por las experiencias que alimentaron los sentidos dados a un concepto y las expectativas que despertaron entre quienes lo usaron. Los conceptos a trabajar fueron escogidos, entendiendo que tenían esa calidad precisamente por haber estado en el centro de los debates por el sentido y el significado de los acontecimientos; porque fue con esos conceptos que los contemporáneos reflexionaron y elaboraron las experiencias vividas.

  11. EFFECTS OF HYDROGEOMORPHIC REGION, WATERSHED STORAGE, AND FOREST FRAGMENTATION ON WATERSHED EXPORTS

    Science.gov (United States)

    Turbidity was highest for South Shore streams overall, but exhibited a significant HGM x storage x fragmentation effect, with highest levels observed in South Shore low storage/high fragmentation watersheds.

  12. Boosted Regression Tree Models to Explain Watershed ...

    Science.gov (United States)

    Boosted regression tree (BRT) models were developed to quantify the nonlinear relationships between landscape variables and nutrient concentrations in a mesoscale mixed land cover watershed during base-flow conditions. Factors that affect instream biological components, based on the Index of Biotic Integrity (IBI), were also analyzed. Seasonal BRT models at two spatial scales (watershed and riparian buffered area [RBA]) for nitrite-nitrate (NO2-NO3), total Kjeldahl nitrogen, and total phosphorus (TP) and annual models for the IBI score were developed. Two primary factors — location within the watershed (i.e., geographic position, stream order, and distance to a downstream confluence) and percentage of urban land cover (both scales) — emerged as important predictor variables. Latitude and longitude interacted with other factors to explain the variability in summer NO2-NO3 concentrations and IBI scores. BRT results also suggested that location might be associated with indicators of sources (e.g., land cover), runoff potential (e.g., soil and topographic factors), and processes not easily represented by spatial data indicators. Runoff indicators (e.g., Hydrological Soil Group D and Topographic Wetness Indices) explained a substantial portion of the variability in nutrient concentrations as did point sources for TP in the summer months. The results from our BRT approach can help prioritize areas for nutrient management in mixed-use and heavily impacted watershed

  13. Recovery of central Appalachian forested watershed

    Science.gov (United States)

    Mary Beth Adams; James N. Kochendenfer [sic

    2014-01-01

    The Fernow Experimental Forest (FEF) was established to conduct research in forest and watershed management in the central Appalachians. The 1868-ha FEF, located south of Parsons, West Virginia, is administered by the Northern Research Station of the USDA Forest Service and provides a valuable point of comparison with the Coweeta Hydrologic Laboratory (CHL), located in...

  14. The Implementation of a Parallel Watershed Algorithm

    NARCIS (Netherlands)

    Meijster, A.; Roerdink, J.B.T.M.

    1995-01-01

    In this paper the implementation of a parallel watershed algorithm is described. The algorithm is implemented on a multiple instruction multiple data (MIMD) ring-architecture using a single program multiple data (SPMD) approach using an asynchronous message passing interface and simulated shared mem

  15. Modeling global nutrient export from watersheds

    NARCIS (Netherlands)

    Kroeze, C.; Bouwman, L.; Seitzinger, S.

    2012-01-01

    We describe how global models can be used to analyze past and future trends in nutrient export from watersheds and how such models can be used to analyze causes and effects of coastal eutrophication. Future nutrient inputs to coastal waters may be higher than today, and nutrient ratios may depart fr

  16. A mean field approach to watershed hydrology

    Science.gov (United States)

    Bartlett, Mark; Porporato, Amilcare

    2016-04-01

    Mean field theory (also known as self-consistent field theory) is commonly used in statistical physics when modeling the space-time behavior of complex systems. The mean field theory approximates a complex multi-component system by considering a lumped (or average) effect for all individual components acting on a single component. Thus, the many body problem is reduced to a one body problem. For watershed hydrology, a mean field theory reduces the numerous point component effects to more tractable watershed averages, resulting in a consistent method for linking the average watershed fluxes to the local fluxes at each point. We apply this approach to the spatial distribution of soil moisture, and as a result, the numerous local interactions related to lateral fluxes of soil water are parameterized in terms of the average soil moisture. The mean field approach provides a basis for unifying and extending common event-based models (e.g. Soil Conservation Service curve number (SCS-CN) method) with more modern semi-distributed models (e.g. Variable Infiltration Capacity (VIC) model, the Probability Distributed (PDM) model, and TOPMODEL). We obtain simple equations for the fractions of the different source areas of runoff, the spatial variability of runoff, and the average runoff value (i.e., the so-called runoff curve). The resulting space time distribution of soil moisture offers a concise description of the variability of watershed fluxes.

  17. 36 CFR 251.35 - Petersburg watershed.

    Science.gov (United States)

    2010-07-01

    ... Federal employees, holders of Forest Service contracts, or Forest Service agents; (2) The operation, maintenance, and improvement of the municipal water system by Federal and State officials and employees of the... Ranger. (d) Unauthorized entrance upon lands within the watershed is subject to punishment as provided...

  18. Integrated Resource Management at a Watershed Scale

    Science.gov (United States)

    Byrne, J. M.; MacDonald, R. J.; Cairns, D.; Barnes, C. C.; Mirmasoudi, S. S.; Lewis, D.

    2014-12-01

    Watershed hydrologists, managers and planners have a long list of resources to "manage." Our group has worked for over a decade to develop and apply the GENESYS (Generate Earth Systems Science) high-resolution spatial hydrometeorological model. GENESYS was intended for modelling of alpine snowpack, and that work has been the subject of a series of hydrometeorology papers that applied the model to evaluate how climate change may impact water resources for a series of climate warming scenarios through 2100. GENESYS has research modules that have been used to assess alpine glacier mass balance, soil water and drought, forest fire risk under climate change, and a series of papers linking GENESYS to a water temperature model for small headwater streams. Through a major commercialization grant, we are refining, building, adopting, and adapting routines for flood hydrology and hydraulics, surface and groundwater storage and runoff, crop and ecosystem soil water budgets, and biomass yields. The model will be available for research collaborations in the near future. The central goal of this development program is to provide a series of research and development tools for non-profit integrated resource management in the developed and developing world. A broader question that arises is what are the bounds of watershed management, if any? How long should our list of "managed" resources be? Parallel work is evaluating the relative values of watershed specialists managing many more resources with the watershed. Hydroelectric power is often a key resource complimentary to wind, solar and biomass renewable energy developments; and biomass energy is linked to water supply and agriculture. The August 2014 massive tailings dam failure in British Columbia threatens extensive portions of the Fraser River sockeye salmon run, millions of fish, and there are concerns about long-term contamination of water supplies for many British Columbians. This disaster, and many others that may occur

  19. URBAN WATERSHED STUDIES IN SOUTHERN BRAZIL

    Directory of Open Access Journals (Sweden)

    Cristiano Poleto

    2007-12-01

    Full Text Available One of the greatest problems observed in Brazilian urban watersheds are concerned to the amount of solid residues, domestic sewerage and sediments that are disposed in the rivers and streams that drain those areas. This project aims to present these problems through a study of case taken in an urban watershed in Porto Alegre city, Southern Brazil. For this study, different procedures were used, such as field surveys, interviews with the inhabitants, satellite images, sediment samples, flow measures and morphology assessment of part of the local fluvial system to check the degree of instability of the channel. In 2005, it was verified that 42.57% of the watershed was impermeable, considering the paved streets, the residential and commercial buildings and stone pavements. As there was no sewer treatment, most of this sewerage was directly disposed into the stream and the TOC has reached 20% (m/m. Moreover, the occupation of riparian areas, a great amount of soil exposed in the watershed, the nonpaved streets and a great volume of solid residues were causing the instability in the channel, silting the stream bed. The metals (Zn, Pb and Cr selected for this study are most frequently found in high concentrations in urban areas. The results suggest the occurrence of a high enrichment of the fluvial sediment by these metals. The concentrations of these elements vary temporally during storms due to the input of impervious area runoff containing high concentration of elements associated to vehicular traffic and other anthropogenic activities. Then, it is possible to conclude that the contamination of the urban watershed is reflected in the results obtained in the fluvial suspended sediments.

  20. URBAN WATERSHED STUDIES IN SOUTHERN BRAZIL

    Directory of Open Access Journals (Sweden)

    Cristiano Poleto

    2007-01-01

    Full Text Available One of the greatest problems observed in Brazilian urban watersheds are concerned to the amount of solid residues, domestic sewerage and sediments that are disposed in the rivers and streams that drain those areas. This project aims to present these problems through a study of case taken in an urban watershed in Porto Alegre city, Southern Brazil. For this study, different procedures were used, such as field surveys, interviews with the inhabitants, satellite images, sediment samples, flow measures and morphology assessment of part of the local fluvial system to check the degree of instability of the channel. In 2005, it was verified that 42.57% of the watershed was impermeable, considering the paved streets, the residential and commercial buildings and stone pavements. As there was no sewer treatment, most of this sewerage was directly disposed into the stream and the TOC has reached 20% (m/m. Moreover, the occupation of riparian areas, a great amount of soil exposed in the watershed, the nonpaved streets and a great volume of solid residues were causing the instability in the channel, silting the stream bed. The metals (Zn, Pb and Cr selected for this study are most frequently found in high concentrations in urban areas. The results suggest the occurrence of a high enrichment of the fluvial sediment by these metals. The concentrations of these elements vary temporally during storms due to the input of impervious area runoff containing high concentration of elements associated to vehicular traffic and other anthropogenic activities. Then, it is possible to conclude that the contamination of the urban watershed is reflected in the results obtained in the fluvial suspended sediments.

  1. A Interface e as suas dimensões na perceção de credibilidade e confiança na e-Health. Proposta de uma estrutura para análise da Interface

    Directory of Open Access Journals (Sweden)

    Andreia Pinto de Sousa

    2015-07-01

    Full Text Available A Interface é incontornável quando se estudam os sistemas de informação. Com este artigo, pretendemos contribuir para o aumento do conhecimento sobre os processos de apresentação de informação de saúde online e, sobre as relações do utilizador com a Interface. A proposta aqui apresentada consiste na divisão da interface em cinco dimensões (visual, arquitetura da informação, interação, presença social e experiência de utilização para um maior conhecimento da relevância de cada uma das dimensões e dos seus elementos no estudo da credibilidade e confiança online. Apresenta-se também um modelo de análise que serve como base de construção dos instrumentos de análise para a recolha de dados que caraterizam os utilizadores, e os seus comportamentos relativamente ao acesso e participação e avaliam a sua perceção de credibilidade e de confiança em websites partindo da análise de cada uma das dimensões da Interface.

  2. Carlos Martínez Assad, coord. 2010. El camino de la rebelión del general Saturnino Cedillo. México: Editorial Océano ISBN 978-607-40034-7-5

    Directory of Open Access Journals (Sweden)

    Víctor Rayon García

    2015-02-01

    Full Text Available Carlos Martínez Assad publicó Los rebeldes vencidos. Cedillo contra el Estado cardenista en 1990. En ese trabajo, el ahora investigador emérito por la Universidad Nacional Autónoma de México y el Sistema Nacional de Investigadores dio cuenta, mediante un meticuloso análisis de fuentes primarias, de la última rebelión que conmovió al México contemporáneo. La investigación de Martínez Assad tuvo muchos méritos, aunque tal vez el mayor de ellos fue el hecho de analizar el movimiento de Saturnino Cedillo en sus aspectos económicos, sociales, políticos e ideológicos. Con la seriedad académica que siempre lo caracteriza, el ahora también Premio Nacional de Ciencias y Artes 2013 examinó los momentos más importantes en la vida del cacique potosino: su incursión en el torbellino revolucionario (1912, su apoyo al Plan de Agua Prieta (1920, su alianza con los gobiernos de Álvaro Obregón (1920-1924 y Plutarco Elías Calles (1924-1928, y su enfrentamiento final con el gobierno de Lázaro Cárdenas (1934-1940. De esta manera, Martínez Assad demostró que Cedillo, al rechazar el socialismo, las huelgas y el ejido, fue expuesto por el Estado cardenista —empeñado en lograr una centralización política y administrativa— como aliado de las compañías petroleras expropiadas el 18 de marzo de 1938 y portavoz del fascismo alemán en México

  3. José Martínez Millán y Carlos Javier de Carlos Morales. Religión, política y tolerancia en la Europa Moderna

    OpenAIRE

    Torres Corominas, Eduardo

    2013-01-01

    Como fruto maduro de una larga trayectoria docente e investigadora en la Universidad Autónoma de Madrid, José Martínez Millán y Carlos Javier de Carlos Morales ofrecen en Religión, política y tolerancia en la Europa Moderna una serena reflexión sobre la época del Antiguo Régimen que pretende superar, desde los estudios sobre la Corte, los límites y contradicciones de las escuelas y paradigmas precedentes, como la escuela de los Annales y el marxismo, por medio de un discurso renovador donde s...

  4. L’esilio antifranchista e l'antifascismo italiano. Le relazioni tra José Martínez, Ruedo Ibérico e l’azionismo torinese.

    OpenAIRE

    Bottai, Alessio

    2016-01-01

    Síntesis L’esilio antifranchista e l'antifascismo italiano. Le relazioni tra José Martínez, Ruedo ibérico e l’azionismo torinese. Esta investigación tiene como objeto la historia de las relaciones que se mantuvieron durante más de dos décadas entre un grupo de intelectuales italianos, pertenecientes sobre todo a los azionisti, y algunos exponentes del antifranquismo español. Más específicamente, la tesis se centra en las relaciones activas de solidaridad humana y política que vincular...

  5. L’esilio antifranchista e l'antifascismo italiano. Le relazioni tra José Martínez, Ruedo Ibérico e l’azionismo torinese.

    OpenAIRE

    Bottai, Alessio

    2016-01-01

    Síntesis L’esilio antifranchista e l'antifascismo italiano. Le relazioni tra José Martínez, Ruedo ibérico e l’azionismo torinese. Esta investigación tiene como objeto la historia de las relaciones que se mantuvieron durante más de dos décadas entre un grupo de intelectuales italianos, pertenecientes sobre todo a los azionisti, y algunos exponentes del antifranquismo español. Más específicamente, la tesis se centra en las relaciones activas de solidaridad humana y política que vincular...

  6. Historias y viñetas, una versión del pasado traumático : Carlos Giménez: variaciones entre España y Argentina

    OpenAIRE

    Néstor Bórquez

    2013-01-01

    El artículo focalizará especialmente en el trabajo gráfico de Carlos Giménez, historietista madrileño que ha utilizado sus viñetas para representar la vida española desde la Guerra Civil hasta el fin del franquismo, atravesado por su experiencia vital. 36-39 Malos tiempos, pero sobre todo Paracuellos y Barrio forman parte de su historia personal durante la Guerra Civil y el franquismo. En Argentina, los casos de autores como Mariano Grassi o María Delia Lozupone y Rafael Cippolini plantean de...

  7. Historias y viñetas, una visión del pasado traumático : Carlos Giménez: variaciones entre España y Argentina

    OpenAIRE

    Bórquez, Néstor Horacio

    2013-01-01

    El artículo focalizará especialmente en el trabajo gráfico de Carlos Giménez, historietista madrileño que ha utilizado sus viñetas para representar la vida española desde la Guerra Civil hasta el fin del franquismo, atravesado por su experiencia vital. 36-39 Malos tiempos, pero sobre todo Paracuellos y Barrio forman parte de su historia personal durante la Guerra Civil y el franquismo. En Argentina, los casos de autores como Mariano Grassi o María Delia Lozupone y Rafael Cippolini plantean de...

  8. Diagnostic Systems Approach to Watershed Management

    Energy Technology Data Exchange (ETDEWEB)

    Davisson, M L

    2001-02-23

    The water quality of discharge from the surface water system is ultimately dictated by land use and climate within the watershed. Water quality has vastly improved from point source reduction measures, yet, non-point source pollutants continue to rise. 30 to 40% of rivers still do not meet water quality standards for reasons that include impact from urban storm water runoff, agricultural and livestock runoff, and loss of wetlands. Regulating non-point source pollutants proves to be difficult since specific dischargers are difficult to identify. However, parameters such as dissolved organic carbon (DOC) limit the amounts of chlorination due to simultaneous disinfection by-product formation. The concept of watershed management has gained much ground over the years as a means to resolve non-point source problems. Under this management scheme stakeholders in a watershed collectively agree to the nature and extent of non-point sources, determine water quality causes using sound scientific approaches, and together develop and implement a corrective plan. However, the ''science'' of watershed management currently has several shortcomings according to a recent National Research Council report. The scientific component of watershed management depends on acquiring knowledge that links water quality sources with geographic regions. However, there is an observational gap in this knowledge. In particular, almost all the water quality data that exists at a utility are of high frequency collected at a single point over a long period of time. Water quality data for utility purposes are rarely collected over an entire watershed. The potential is high, however, for various utilities in a single watershed to share and integrate water quality data, but no regulatory incentives exist at this point. The only other available water quality data originate from special scientific studies. Unfortunately these data rarely have long-term records and are usually tailored to

  9. Streamflow simulation by a watershed model using stochastically generated weather in New York City watersheds

    Science.gov (United States)

    Mukundan, R.; Acharya, N.; Gelda, R.; Owens, E. M.; Frei, A.; Schneiderman, E. M.

    2016-12-01

    Recent studies have reported increasing trends in total precipitation, and in the frequency and magnitude of extreme precipitation events in the West of Hudson (WOH) watersheds of the New York City (NYC) water supply. The potential effects of these changes may pose challenges for both water quality (such as increased sediment and nutrient loading) and quantity (such as reservoir storage and management). The NYC Dept. of Environmental Protection Climate Change Integrated Modeling Project (CCIMP) is using "bottom-up" or vulnerability based methods to explore climate impacts on water resources. Stochastic weather generators (SWGs) are an integral component of the bottom-up approach. Previous work has identified and evaluated the skill of alternative stochastic weather generators of varying complexity for simulating the statistical characteristics of observed minimum and maximum daily air temperature and occurrence and amount of precipitation. This evaluation focused on the skill in representing extreme streamflow event probabilities across NYC West of Hudson (WOH) watersheds. Synthetic weather time series from the selected (skewed normal) SWG were used to drive the Generalized Watershed Loading Function (GWLF) watershed model for a 600 year long period to simulate daily streamflows for WOH watersheds under a wide range of hydrologic conditions. Long-term average daily streamflows generated using the synthetic weather time series were comparable to values generated using observed long-term (1950-2009) weather time series. This study demonstrates the ability of the selected weather generator to adequately represent the hydrologic response in WOH watersheds with respect to the total, peak, and seasonality in streamflows. Future application of SWGs in NYC watersheds will include generating multiple scenarios of changing climate to evaluate water supply system vulnerability and selection of appropriate adaptation measures.

  10. Social Exclusion in Watershed Development: Evidence From the Indo-German Watershed Development Project in Maharashtra

    Directory of Open Access Journals (Sweden)

    Eshwer Kale

    2011-09-01

    Full Text Available The concept of social exclusion is context-specific and there is no uniform paradigm of exclusion across the world. This paper attempts to analyse exclusion of resource-poor groups in watershed development programmes in the Indian context. It aims to explore excluded community groups from the perspective of people’s equal opportunity and equal access to newly generated economic benefits in watershed development programmes. The paper also traces the determinant factors responsible for denial and exclusion of resource-poor groups and describes the detailed processes involved in their exclusion from institutional and livelihood opportunities in watershed programmes. At the same time, the paper also explores suggestions and views of resource-poor groups about their meaningful social inclusion in watershed programme. The Gadiwat Indo-German Watershed Development Project in Aurangabad district in the State of Maharashtra is studied in detail in terms of its social, economic and political realities through mix-method and multi-stakeholder approaches. The key findings of the paper are that landownership, caste, gender, membership in village institutions and/or watershed institutions or close relationship with members, as well as the limitations of the programme guidelines, are the major determinants of institutional inclusion and the extent of resulting economic benefits. The exclusion of resource-poor groups mainly takes the form of their exclusion from institutional representation. In order to promote meaningful social inclusion of resource-poor groups, there is need for a more livelihood-oriented focus and their equal representation and participation in watershed institutions.

  11. Watershed characteristics and water-quality trends and loads in 12 watersheds in Gwinnett County, Georgia

    Science.gov (United States)

    Joiner, John K.; Aulenbach, Brent T.; Landers, Mark N.

    2014-01-01

    The U.S. Geological Survey, in cooperation with Gwinnett County Department of Water Resources, established a Long-Term Trend Monitoring (LTTM) program in 1996. The LTTM program is a comprehensive, long-term, water-quantity and water-quality monitoring program designed to document and analyze the hydrologic and water-quality conditions of selected watersheds of Gwinnett County, Georgia. Water-quality monitoring initially began in six watersheds and was expanded to another six watersheds in 2001. As part of the LTTM program, streamflow, precipitation, water temperature, specific conductance, and turbidity were measured continuously at the 12 watershed monitoring stations for water years 2004–09. In addition, discrete water-quality samples were collected seasonally from May through October (summer) and November through April (winter), including one base-flow and three stormflow event composite samples, during the study period. Samples were analyzed for nutrients (nitrogen and phosphorus), total organic carbon, trace elements (total lead and total zinc), total dissolved solids, and total suspended sediment (total suspended solids and suspended-sediment concentrations). The sampling scheme was designed to identify variations in water quality both hydrologically and seasonally. The 12 watersheds were characterized for basin slope, population density, land use for 2009, and the percentage of impervious area from 2000 to 2009. Precipitation in water years 2004–09 was about 18 percent below average, and the county experienced exceptional drought conditions and below average runoff in water years 2007 and 2008. Watershed water yields, the percentage of precipitation that results in runoff, typically are lower in low precipitation years and are higher for watersheds with the highest percentages of impervious areas. A comparison of base-flow and stormflow water-quality samples indicates that turbidity and concentrations of total ammonia plus organic nitrogen, total

  12. Landscape planning for agricultural non-point source pollution reduction. II. Balancing watershed size, number of watersheds, and implementation effort.

    Science.gov (United States)

    Maxted, Jeffrey T; Diebel, Matthew W; Vander Zanden, M Jake

    2009-01-01

    Agricultural non-point source (NPS) pollution poses a severe threat to water quality and aquatic ecosystems. In response, tremendous efforts have been directed toward reducing these pollution inputs by implementing agricultural conservation practices. Although conservation practices reduce pollution inputs from individual fields, scaling pollution control benefits up to the watershed level (i.e., improvements in stream water quality) has been a difficult challenge. This difficulty highlights the need for NPS reduction programs that focus efforts within target watersheds and at specific locations within target watersheds, with the ultimate goal of improving stream water quality. Fundamental program design features for NPS control programs--i.e., number of watersheds in the program, total watershed area, and level of effort expended within watersheds--have not been considered in any sort of formal analysis. Here, we present an optimization model that explores the programmatic and environmental trade-offs between these design choices. Across a series of annual program budgets ranging from $2 to $200 million, the optimal number of watersheds ranged from 3 to 27; optimal watershed area ranged from 29 to 214 km(2); and optimal expenditure ranged from $21,000 to $35,000/km(2). The optimal program configuration was highly dependent on total program budget. Based on our general findings, we delineated hydrologically complete and spatially independent watersheds ranging in area from 20 to 100 km(2). These watersheds are designed to serve as implementation units for a targeted NPS pollution control program currently being developed in Wisconsin.

  13. Watershed Ecohydrology: How Do Vegetation Patterns and Climate Affect Watershed Storage and Connectivity?

    Science.gov (United States)

    Nippgen, F.; McGlynn, B. L.; Emanuel, R. E.

    2015-12-01

    Topography and soils have long been recognized as mediators of runoff source areas, but the effect of vegetation patterns on subsurface throughflow is less well understood. While numerous studies have shown that vegetation removal generally leads to increases in streamflow, few studies have examined the intersection between patterns of evapotranspiration and topographically driven patterns of throughflow generation and connectivity. We applied a parsimonious but spatially distributed watershed modeling framework (WECOH: Watershed ECOHydrology Model) to a snow dominated watershed in central Montana to elucidate how different vegetation scenarios and climate forcing can affect the temporal evolution of storage distributions and watershed connectivity. We derived spatially distributed snowmelt and rainfall input from two NRCS SNOTEL sites located in the experimental watershed and actual evapotranspiration from a co-located eddy-covariance tower. We generated different vegetation scenarios to simulate forest harvesting and compared streamflow response, spatial distribution of storage, and runoff source areas across scenarios. Our work aims at better understanding how the intersection of vegetation and topography mediates hydrologic response.

  14. Developing Participatory Models of Watershed Management in the Sugar Creek Watershed (Ohio, USA

    Directory of Open Access Journals (Sweden)

    Jason Shaw Parker

    2009-02-01

    Full Text Available The US Environmental Protection Agency (USEPA has historically used an expert-driven approach to water and watershed management. In an effort to create regulatory limits for pollution-loading to streams in the USA, the USEPA is establishing limits to the daily loading of nutrients specific to each watershed, which will affect many communities in America. As a part of this process, the Ohio Environmental Protection Agency ranked the Sugar Creek Watershed as the second "most-impaired" watershed in the State of Ohio. This article addresses an alternative approach to watershed management and that emphasises a partnership of farmers and researchers, using community participation in the Sugar Creek to establish a time-frame with goals for water quality remediation. Of interest are the collaborative efforts of a team of farmers, researchers, and agents from multiple levels of government who established this participatory, rather than expert-driven, programme. This new approach created an innovative and adaptive model of non-point source pollution remediation, incorporating strategies to address farmer needs and household decision making, while accounting for local and regional farm structures. In addition, this model has been adapted for point source pollution remediation that creates collaboration among local farmers and a discharge-permitted business that involves nutrient trading.

  15. Watershed Conservation in the Long Run

    DEFF Research Database (Denmark)

    Kaiser, Brooks

    2014-01-01

    We studied unanticipated long-run outcomes of conservation activities that occurred in forested watersheds on O`ahu, Hawaii, in the early twentieth century. The initial general impetus for the conservation activities was to improve irrigation surface water flow for the sugar industry. Industry...... concentration facilitated conservation of entire ecosystems. We investigate the benefits that accrued through dynamic linkages of the hydrological cycle and groundwater aquifer system. This provides a clear example of the need to consider integrated watershed effects, industrial structure, and linkages...... in groundwater recharge levels from these activities, with a lower bound benefit–cost ratio of 7.1–18.2. This lower-bound excludes returns from such high value, yet controversial to measure, amenities as species preservation....

  16. Thermodynamic watershed hydrological model: Constitutive relationship

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The representative elementary watershed (REW) approach proposed by Reggiani et al. was the first attempt to develop scale adaptable equations applicable directly at the macro scale. Tian et al. extended the initial definition of REW for simulating the energy related processes, and re-organized the deriving procedure of balance equations so that additional sub-regions and substances could be easily incorpo-rated. The resultant ordinary differential equation set can simulate various hydro-logical processes in a physically reasonable way. However, constitutive and geo-metric relationships have not been developed for Tian et al.’s equation set, which are necessary for the thermodynamic watershed hydrological model to apply in hydrological modeling practice. In this work, the constitutive equations for mass exchange terms and momentum exchange terms were developed as well as geo-metric relationships. The closed ordinary differential equation set with nine equa-tions was finally obtained.

  17. Thermodynamic watershed hydrological model: Constitutive relationship

    Institute of Scientific and Technical Information of China (English)

    TIAN FuQiang; HU HePing; LEI ZhiDong

    2008-01-01

    The representative elementary watershed (REW) approach proposed by Reggiani et al. Was the first attempt to develop scale adaptable equations applicable directly at the macro scale. Tian et al. Extended the initial definition of REW for simulating the energy related processes, and re-organized the deriving procedure of balance equations so that additional sub-regions and substances could be easily incorpo- rated. The resultant ordinary differential equation set can simulate various hydro- logical processes in a physically reasonable way. However, constitutive and geo- metric relationships have not been developed for Tian et al.'s equation set, which are necessary for the thermodynamic watershed hydrological model to apply in hydrological modeling practice. In this work, the constitutive equations for mass exchange terms and momentum exchange terms were developed as well as geo- metric relationships. The closed ordinary differential equation set with nine equations was finally obtained.

  18. Development of SPAWM: selection program for available watershed models.

    Science.gov (United States)

    Cho, Yongdeok; Roesner, Larry A

    2014-01-01

    A selection program for available watershed models (also known as SPAWM) was developed. Thirty-three commonly used watershed models were analyzed in depth and classified in accordance to their attributes. These attributes consist of: (1) land use; (2) event or continuous; (3) time steps; (4) water quality; (5) distributed or lumped; (6) subsurface; (7) overland sediment; and (8) best management practices. Each of these attributes was further classified into sub-attributes. Based on user selected sub-attributes, the most appropriate watershed model is selected from the library of watershed models. SPAWM is implemented using Excel Visual Basic and is designed for use by novices as well as by experts on watershed modeling. It ensures that the necessary sub-attributes required by the user are captured and made available in the selected watershed model.

  19. Application of a virtual watershed in academic education

    Directory of Open Access Journals (Sweden)

    A. L. Horn

    2005-01-01

    Full Text Available Hydrologic models of watersheds often represent complex systems which are difficult to understand regarding to their structure and dynamics. Virtual watersheds, i.e. watersheds which exist only in the virtual reality of a computer system, are an approach to simplify access to this real-world complexity. In this study we present the virtual watershed KIELSHED-1, a 117 km2 v-shaped valley with grassland on a "Cambisol" soil type. Two weather scenarios are delivered with the watershed: a simplified artificial weather scenario based on long-term data of a German weather station as well as an unmodified data record. The input data and parameters are compiled according to the conventions of the SWAT 2000 hydrological model. KIELSHED-1 is mainly used for education, and illustrative application examples, i.e. calculation of water balance, model calibration, development of land use scenarios, give an insight to the capabilities of the virtual watershed.

  20. Payments for watershed services: Opportunities and realities

    OpenAIRE

    Bond, I.

    2007-01-01

    Metadata only record "Many nations have found that regulatory approaches to land and water management have a limited impact. An alternative is to create incentives for sound management under mechanisms known as payments for ecosystem services. It is a simple idea: people who look after ecosystems that benefit others should be recognised and rewarded. In the case of watersheds, downstream beneficiaries of wise upstream land and water use should compensate the stewards. To be effective, thes...

  1. Watershed modeling at the Savannah River Site.

    Energy Technology Data Exchange (ETDEWEB)

    Vache, Kellie [Oregon State University

    2015-04-29

    The overall goal of the work was the development of a watershed scale model of hydrological function for application to the US Department of Energy’s (DOE) Savannah River Site (SRS). The primary outcomes is a grid based hydrological modeling system that captures near surface runoff as well as groundwater recharge and contributions of groundwater to streams. The model includes a physically-based algorithm to capture both evaporation and transpiration from forestland.

  2. Granite Exfoliation, Cosumnes River Watershed, Somerset, California

    Science.gov (United States)

    Crockett, I. Q.; Neiss-Cortez, M.

    2015-12-01

    In the Sierra Nevada foothills of California there are many exposed granite plutons within the greater Sierra Nevada batholith. As with most exposed parts of the batholith, these granite slabs exfoliate. It is important to understand exfoliation for issues of public safety as it can cause rock slides near homes, roads, and recreation areas. Through observation, measuring, and mapping we characterize exfoliation in our Cosumnes River watershed community.

  3. Citizen participation in collaborative watershed partnerships.

    Science.gov (United States)

    Koehler, Brandi; Koontz, Tomas M

    2008-02-01

    Collaborative efforts are increasingly being used to address complex environmental problems, both in the United States and abroad. This is especially true in the growing field of collaborative watershed management, where diverse stakeholders work together to develop and advance water-quality goals. Active citizen participation is viewed as a key component, yet groups often struggle to attract and maintain citizen engagement. This study examined citizen participation behavior in collaborative watershed partnerships by way of a written survey administered to citizen members of 12 collaborative watershed groups in Ohio. Results for the determination of who joins such groups were consistent with the dominant-status model of participation because group members were not demographically representative of the broader community. The dominant-status model, however, does not explain which members are more likely to actively participate in group activities. Instead, individual characteristics, including political activity, knowledge, and comfort in sharing opinions with others, were positively correlated with active participation. In addition, group characteristics, including government-based membership, rural location, perceptions of open communication, perceptions that the group has enough technical support to accomplish its goals, and perceived homogeneity of participant opinions, were positively correlated with active participation. Overall, many group members did not actively participate in group activities.

  4. Cycling of Organoarsenic Compounds in Agricultural Watersheds

    Science.gov (United States)

    Schreiber, M. E.; Chambers, D. B.; White, J. S.

    2004-12-01

    The use of the organoarsenical roxarsone, added to poultry feed to increase weight gain, results in elevated arsenic concentrations (10-50 mg/kg) in poultry litter. This litter is extensively applied to crop fields and pastures, both as a fertilizer and as a waste disposal technique, in agricultural regions. Using a combination of field sampling and laboratory experiments, we investigated the sources and sinks of arsenic within soils and natural waters in an agricultural watershed in the Shenandoah Valley of Virginia, USA, an area of intense poultry production. Surface, ground, and soil waters were collected in an instrumented field site to examine arsenic and other litter-derived species in different hydrologic compartments and different settings within the field site. We collected soil cores of the Frederick series, common in the Shenandoah Valley, from several areas experiencing different litter application histories in the valley to examine relationships between arsenic and physico-chemical properties of the soils. Last, we conducted a series of batch experiments to examine adsorption and biotransformation characteristics of roxarsone within Ap and Bt soil horizons of the Frederick soils. Results of these combined studies document a complex yet intriguing cycling of arsenic through the watershed, which will provide useful information for management of poultry litter in agricultural watersheds.

  5. Predicting Watershed Ecosystems Through Targeted Local Land Use Policies

    OpenAIRE

    2006-01-01

    Land-use change is arguably the most pervasive socioeconomic force driving the change and degradation of watershed ecosystems. This paper combines an econometric model of land use choice with three models of watershed health indicators (conventional water pollution, toxic water pollution, and the number of aquatic species at risk) to examine the effects of land use policies on watershed ecosystems through their effect on land use choice. The analysis is conducted using parcel-level data from ...

  6. La etnobotánica moqoit inédita de Raúl Martínez Crovetto 2 : Descripción, actualización y análisis de usos de las plantas

    Directory of Open Access Journals (Sweden)

    Gustavo F. Scarpa

    2016-04-01

    Full Text Available En el Instituto de Botánica del Nordeste (IBONE se hallaron valiosos datos inéditos sobre la etnobotánica moqoit que fueron documentados en la década de 1960 en la provincia del Chaco por Raúl Martínez Crovetto. Se propone sistematizar y difundir esta información histórica, contextualizarla espacio-temporal y socioculturalmente y analizar en términos generales los usos asignados a las plantas. Se emplea la metodología propia de la “etnobotánica histórica” que considera a los datos del pasado como una fuente de información primaria. Se registró un total de 400 datos etnobotánicos asignados a 231 especies. El 95% de las plantas resultaron nativas. Las especies con mayor cantidad de usos registrados por Martínez Crovetto fueron P. alba, Copernicia alba, Zea mays, P. nigra, B. serra y Schinus fasciculatus. El 49% de aplicaciones fueron medicinales, el 23% alimenticias y el resto de las categorías utilitarias agrupaba menos del 5% de los datos. Esta valiosa información representa uno de los antecedentes más importantes sobre la etnobotánica moqoit publicados hasta el momento.

  7. Big Canyon Creek Ecological Restoration Strategy.

    Energy Technology Data Exchange (ETDEWEB)

    Rasmussen, Lynn; Richardson, Shannon

    2007-10-01

    He-yey, Nez Perce for steelhead or rainbow trout (Oncorhynchus mykiss), are a culturally and ecologically significant resource within the Big Canyon Creek watershed; they are also part of the federally listed Snake River Basin Steelhead DPS. The majority of the Big Canyon Creek drainage is considered critical habitat for that DPS as well as for the federally listed Snake River fall chinook (Oncorhynchus tshawytscha) ESU. The Nez Perce Soil and Water Conservation District (District) and the Nez Perce Tribe Department of Fisheries Resources Management-Watershed (Tribe), in an effort to support the continued existence of these and other aquatic species, have developed this document to direct funding toward priority restoration projects in priority areas for the Big Canyon Creek watershed. In order to achieve this, the District and the Tribe: (1) Developed a working group and technical team composed of managers from a variety of stakeholders within the basin; (2) Established geographically distinct sub-watershed areas called Assessment Units (AUs); (3) Created a prioritization framework for the AUs and prioritized them; and (4) Developed treatment strategies to utilize within the prioritized AUs. Assessment Units were delineated by significant shifts in sampled juvenile O. mykiss (steelhead/rainbow trout) densities, which were found to fall at fish passage barriers. The prioritization framework considered four aspects critical to determining the relative importance of performing restoration in a certain area: density of critical fish species, physical condition of the AU, water quantity, and water quality. It was established, through vigorous data analysis within these four areas, that the geographic priority areas for restoration within the Big Canyon Creek watershed are Big Canyon Creek from stream km 45.5 to the headwaters, Little Canyon from km 15 to 30, the mainstem corridors of Big Canyon (mouth to 7km) and Little Canyon (mouth to 7km). The District and the Tribe

  8. Interacting Watershed Size and Landcover Influences on Habitat and Biota of Lake Superior Coastal Wetlands

    Science.gov (United States)

    Coastal wetlands are important contributors to the productivity and biodiversity of large lakes and important mediators of the lake - watershed connection. This study explores how strength of connection to the watershed (represented by watershed size and wetland morphological ty...

  9. Veterinary pharmaceutical contamination in mixed land use watersheds: from agricultural headwater to water monitoring watershed.

    Science.gov (United States)

    Jaffrézic, A; Jardé, E; Soulier, A; Carrera, L; Marengue, E; Cailleau, A; Le Bot, B

    2017-12-31

    Veterinary pharmaceuticals, widely used in intensive livestock production, may contaminate surface waters. Identifying their sources and pathways in watersheds is difficult because i) most veterinary pharmaceuticals are used in human medicine as well and ii) septic or sewer wastewater treatment plants (WWTP) can release pharmaceuticals into surface water, even in agricultural headwater watersheds. This study aimed to analyze the spatiotemporal variability of animal-specific, mixed-use, and human-specific pharmaceuticals, from agricultural headwaters with intensive livestock production and a WWTP to a watershed used for Water Framework Directive monitoring. Grab sampling was performed during one hydrological year upstream and downstream from a WWTP and at three dates in seven nested watersheds with areas of 1.9-84.1km(2). Twenty pharmaceuticals were analyzed. Animal-specific pharmaceuticals were detected at all sampling dates upstream and downstream from the WWTP and at concentrations higher than those of human-specific pharmaceuticals. The predominance of animal-specific and mixed-use pharmaceuticals vs. human-specific pharmaceuticals observed at these sampling points was confirmed at the other sampling points. Animal-specific pharmaceuticals were detected mainly during runoff events and periods of manure spreading. A large percentage of mixed-use pharmaceuticals could come from animal sources, but it was difficult to determine. Mixed-use and human-specific pharmaceuticals predominated in the largest watersheds when runoff decreased. In areas of intensive livestock production, mitigation actions should focus on agricultural headwater watersheds to decrease the number of pathways and the transfer volume of veterinary pharmaceuticals, which can be the main contaminants. Copyright © 2017 Elsevier B.V. All rights reserved.

  10. Hydrological responses to climate change in Mt. Elgon watersheds

    Directory of Open Access Journals (Sweden)

    J. Musau

    2015-03-01

    New Hydrological Insights for the Region: Comparison between the simulated baseline and future streamflow shows that in the Koitobos and Kimilili watersheds, August to December streamflow is likely to be highly altered. In the Kuywa watershed, March to June flows is likely to change considerably due to climate change. Major streamflow changes are likely in March to June and August to November in the Rongai watershed. Projected changes differed between the four watersheds despite their proximity, indicating different sensitivities to climate change and uncertainty about the potential hydrological impacts of climate change in the area.

  11. An approach to measure parameter sensitivity in watershed hydrologic modeling

    Data.gov (United States)

    U.S. Environmental Protection Agency — Abstract Hydrologic responses vary spatially and temporally according to watershed characteristics. In this study, the hydrologic models that we developed earlier...

  12. Watershed Assessment, Tracking & Environmental ResultS (WATERS)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Watershed Assessment, Tracking & Environmental Results (WATERS) is an integrated information system for the nation's surface waters connecting Office of...

  13. Suspended sediment yield in Texas watersheds

    Science.gov (United States)

    Coonrod, Julia Ellen Allred

    The Texas Water Development Board collected suspended sediment samples across the state of Texas for approximately 60 years. Until this research, no comprehensive analysis of the data had been conducted. This study compiles the suspended sediment data along with corresponding streamflow and rainfall. GIS programs are developed which characterize watersheds corresponding to the sediment gauging stations. The watersheds are characterized according to topography, climate, soils, and land use. All of the data is combined to form several SAS data sets which can subsequently be analyzed using regression. Annual data for all of the stations across the state are classified temporally and spatially to determine trends in the sediment yield. In general, the suspended sediment load increases with increasing runoff but no correlation exists with rainfall. However, the annual average rainfall can be used to classify the watersheds according to climate, which improves the correlation between sediment load and runoff. The watersheds with no dams have higher sediment loads than watersheds with dams. Dams in the drier parts of Texas reduce the sediment load more than dams in the wetter part of the state. Sediment rating curves are developed separately for each basin in Texas. All but one of the curves fall into a band which varies by about two orders of magnitude. The study analyzes daily time series data for the Lavaca River near Edna station. USGS data are used to improve the sediment rating curve by the addition of physically related variables and interaction terms. The model can explain an additional 41% of the variability in sediment concentration compared to a simple bivariate regression of sediment load and flow. The TWDB daily data for the Lavaca River near Edna station are used to quantify temporal trends. There is a high correlation between sediment load and flowrate for the Lavaca River. The correlation can be improved by considering a flow-squared term and by

  14. Water quality trading opportunities in two sub-watersheds in the northern Lake Okeechobee watershed.

    Science.gov (United States)

    Corrales, Juliana; Naja, G Melodie; Bhat, Mahadev G; Miralles-Wilhelm, Fernando

    2017-03-25

    For decades, the increase of nutrient enrichment has threatened the ecological integrity and economic sustainability of many rivers, lakes, and coastal waters, including Lake Okeechobee, the second largest freshwater lake in the contiguous United States. Water quality trading programs have been an area of active development to both, reduce nutrient pollution and minimize abatement costs. The objective of this study was to apply a comprehensive modeling framework, integrating a hydrologic-water quality model with an economic model, to assess and compare the cost-effectiveness of a water quality trading program over a command-and-control approach in order to reduce phosphorus loadings to Lake Okeechobee. The Upper Kissimmee (UK) and Taylor Creek/Nubbin Slough (TCNS) sub-watersheds, identified as major sources of total phosphorus (TP) loadings to the lake, were selected for this analysis. The effect of different caps on the market potential was assessed while considering four factors: the least-cost abatement solutions, credit prices, potential cost savings, and credit supply and demand. Hypothetical trading scenarios were also developed, using the optimal caps selected for the two sub-watersheds. In both sub-watersheds, a phosphorus credit trading program was less expensive than the conventional command-and-control approach. While attaining cost-effectiveness, keeping optimal credit prices, and fostering market competition, phosphorus reduction targets of 46% and 32% were selected as the most appropriate caps in the UK and TCNS sub-watersheds, respectively. Wastewater treatment facilities and urban areas in the UK, and concentrated animal feeding operations in the TCNS sub-watershed were identified as potential credit buyers, whereas improved pastures were identified as the major credit sellers in both sub-watersheds. The estimated net cost savings resulting from implementing a phosphorus trading program in the UK and TCNS sub-watersheds were 76% ($ 34.9 million per

  15. Statewide Watershed Protection and Local Implementation: A Comparison of Washington, Minnesota, and Oregon

    OpenAIRE

    1999-01-01

    Abstract In 1991 EPA embraced the watershed protection approach for environmental management. EPA defines watershed protection as â a strategy for effectively protecting and restoring aquatic ecosystems and protecting human health.â To encourage statewide watershed protection, EPA developed the â Statewide Watershed Protection Approachâ document, which is designed to aid states in developing their own watershed protection program. The watershed protection approach is n...

  16. Spatiotemporal variation of watershed health propensity through reliability-resilience-vulnerability based drought index (case study: Shazand Watershed in Iran).

    Science.gov (United States)

    Sadeghi, Seyed Hamidreza; Hazbavi, Zeinab

    2017-06-01

    Quantitative response of the watershed health to climate variability is of critical importance for watershed managers. However, existing studies seldom considered the impact of climate variability on watershed health. The present study therefore aimed to analyze the temporal and spatial variability of reliability (Rel), resilience (Res) and vulnerability (Vul) indicators in node years of 1986, 1998, 2008 and 2014 in connection with Standardized Precipitation Index (SPI) for 24 sub-watersheds in the Shazand Watershed of Markazi Province in Iran. The analysis was based on rainfall variability as one of the main climatic drivers. To achieve the study purposes, the monthly rainfall time series of eight rain gauge stations distributed across the watershed or neighboring areas were analyzed and corresponding SPIs and Rel ResVul indicators were calculated. Ultimately, the spatial variation of SPI oriented Rel ResVul was mapped for the study watershed using Geographic Information System (GIS). The average and standard deviation of SPI-Rel ResVul index for the study years of 1986, 1998, 2008 and 2014 was obtained 0.240±0.025, 0.290±0.036, 0.077±0.0280 and 0.241±0.081, respectively. In overall, the results of the study proved the spatiotemporal variations of SPI-Rel ResVul watershed health index in the study area. Accordingly, all the sub-watersheds of the Shazand Watershed were grouped in unhealthy and very unhealthy conditions in all the study years. For 1986 and 1998 all the sub-watersheds were assessed in unhealthy status. Whilst, it declined to very unhealthy condition in 2008 and then some 75% of the watershed ultimately referred again to unhealthy and the rest still remained under very unhealthy conditions in 2014. Copyright © 2017 Elsevier B.V. All rights reserved.

  17. STUDY OF RUNOFF IN UNDA WATERSHED

    Directory of Open Access Journals (Sweden)

    SATRIA WAHYU 0ETOM0

    2015-06-01

    Full Text Available When rain falls on the earth, it just does not sit there, it starts moving according to the laws of gravity. A portion of the precipitation seeps into the ground to replenish Earth's groundwater. Most of it flows downhill as runoff. Runoff is extremely important in that not only does it keep rivers and lakes full of water, but it also changes the landscape by the action of erosion. The purpose and objective in this study are to estimate the conditions of land cover of Unda Watershed based on the results of image processing, to estimate the monthly average runoff and discharge in outlet of Unda Watershed from 1999 to 2003. The research location is in Unda Watershed. This watershed lies in Province of Bali which has wide 233.1 km2 (23.310 Ha (Balai Wilayah Sungai Bali-Penida. Administratively this watershed lies in 3 Regencies that are Karangasem, Klungkung and Bangli Regency. Mostly the region lies in the Karangasem Regency. In this research, the monthly rainfall data employed to generate the runoff process. Analyze of contour map from topography map obtained the watershed area, physical parameter of river and concentration time. In this research used monthly average rainf all data (from 1999 to 2003 from Pempatan, Besakih, Singarata, Sidemen, Klungkung, Telengan, Rain Gauge Station and Polygon Thiesen method employed to analyze the datas. Apart of rainfall, there are a number of site specific factors which have a direct bearing on the occurrence and volume of runoff, they are soil type, land cover and slope. The soil types in this research area are all Regosol, this soil mapping does not need to be overlayed in obtaining the land unit. Analyze of land cover was employed by Supervised Classification method. By image processing obtained land cover of Unda Watershed estimated consists of 38.129 km2 of forest area (16.357°Ai, 19.122 km2 of grassland area (8.203%, 100.991 km2 of farmland area (43.325%, 62-412 km2 of area housing (26.775%, 2.625 km2

  18. Storm Event Suspended Sediment-Discharge Hysteresis and Controls in Agricultural Watersheds: Implications for Watershed Scale Sediment Management.

    Science.gov (United States)

    Sherriff, Sophie C; Rowan, John S; Fenton, Owen; Jordan, Philip; Melland, Alice R; Mellander, Per-Erik; hUallacháin, Daire Ó

    2016-02-16

    Within agricultural watersheds suspended sediment-discharge hysteresis during storm events is commonly used to indicate dominant sediment sources and pathways. However, availability of high-resolution data, qualitative metrics, longevity of records, and simultaneous multiwatershed analyses has limited the efficacy of hysteresis as a sediment management tool. This two year study utilizes a quantitative hysteresis index from high-resolution suspended sediment and discharge data to assess fluctuations in sediment source location, delivery mechanisms and export efficiency in three intensively farmed watersheds during events over time. Flow-weighted event sediment export was further considered using multivariate techniques to delineate rainfall, stream hydrology, and antecedent moisture controls on sediment origins. Watersheds with low permeability (moderately- or poorly drained soils) with good surface hydrological connectivity, therefore, had contrasting hysteresis due to source location (hillslope versus channel bank). The well-drained watershed with reduced connectivity exported less sediment but, when watershed connectivity was established, the largest event sediment load of all watersheds occurred. Event sediment export was elevated in arable watersheds when low groundcover was coupled with high connectivity, whereas in the grassland watershed, export was attributed to wetter weather only. Hysteresis analysis successfully indicated contrasting seasonality, connectivity and source availability and is a useful tool to identify watershed specific sediment management practices.

  19. Ambientes laborais em Open-Space: a relação entre a perceção das características físicas do ambiente de trabalho e o desempenho, a satisfação e a coesão grupal

    OpenAIRE

    Silva, Ana Raquel Teles Ferreira da

    2016-01-01

    O presente estudo pretende avaliar o efeito das características físicas na perceção do ambiente de trabalho e no desempenho, satisfação e coesão grupal em ambientes laborais com formato Open-Space. Participaram neste estudo 100 trabalhadores de uma empresa de tecnologias situada em Dublin, Irlanda, cujo local de trabalho é um Open-Space, com idades compreendidas entre os 21 e os 54 anos e nacionalidades que variam entre 20 tipos de naturalidade. Foi usado um questionário de auto-preenchimento...

  20. Hydrologic resilience of a Canadian Foothills watershed to forest harvest

    Science.gov (United States)

    Goodbrand, Amy; Anderson, Axel

    2016-04-01

    Recent investigations of long-term hydrometeorological, groundwater, and streamflow data from watersheds on the eastern slopes of the Canadian Rocky Mountains showed the streamflow regime was resilient to forest harvest. These watersheds had low levels of harvest relative to their size and a large area of sparsely vegetated alpine talus slopes and exposed bedrock; an area shown to generate the majority of runoff for streamflow. In contrast, watersheds located in the foothills of the Rocky Mountains are of lower relief and typically have harvestable timber throughout the watershed; therefore, these watersheds may be more sensitive to forest disturbance and have increased potential for streamflow response. This project assesses the hydrologic resilience of an Alberta Foothills watershed to forest harvest using a 23-year dataset from the Tri-Creeks Experimental Watershed (Tri-Creeks). Tri-Creeks has been the site of intensive streamflow, groundwater, snow accumulation, and precipitation observations from 1967 - 1990. During the early 1980s, forestry experiments were conducted to compare the effects of timber harvest and riparian buffers, and the effectiveness of timber harvesting ground rules in protecting fisheries and maintaining water resources within three sub-watersheds: Eunice (16.8 km2; control); Deerlick (15.2 km2; 36% streamside timber removal); and, Wampus (28.3 km2; 37% clear-cut). Statistical analyses were used to compare the pre-and post-harvest ratios of treatment to control sub-watershed runoff for: water year, monthly (April - October), snowmelt peak flow, and low flow (10th percentile streamflow) periods as an assessment of hydrologic resilience to forest harvest. The only significant post-harvest change was an increase in water yield during May at Wampus (Mann-Whitney (MW), pforest harvest. We hypothesize on the processes and characteristics that result in this watershed to exhibit greater resilience compared to other forested watersheds.

  1. Olayo Díaz Giménez (1810-1885: un buen ejemplo de científico «Intermedio»

    Directory of Open Access Journals (Sweden)

    López Fernández, Carlos

    2001-06-01

    Full Text Available

    In this paper we offer a general view of the life and work of Olayo Diaz Giménez (1810-1885, especially during his stage in the city of Murcia, where he lived from 1862 to his death. The paper is divided into four sections. After providing a biographical account of Olayo Díaz, his work as a teacher is approached, with emphasis on his role in the creation of the Physics Cabinet at the Provincial Institute (Secondary School. The following section highlights his activity in promoting the science of his time through his collaborations in the local newspapers and his involvement in the introduction of evolutionism in Murcia. Finally, we look at his period in charge of the Meteorological Office, with emphasis on both his observations as his book on the weather of Murcia. As a result of our study, Olayo Diaz appears as one of the key-scientists in the Murcia of the XIXth century, and as a typical representative of so-called «intermediate scientists», or those that, without possessing an outstanding work of their own, collaborated decisively to create and maintain the necessary conditions to promote scientific activity in Spain.



    En este trabajo se ofrece una panorámica general sobre la vida y obra del catedrático

  2. Assessing the vulnerability of watersheds to climate change: results of national forest watershed vulnerability pilot assessments

    Science.gov (United States)

    Michael J. Furniss; Ken B. Roby; Dan Cenderelli; John Chatel; Caty F. Clifton; Alan Clingenpeel; Polly E. Hays; Dale Higgins; Ken Hodges; Carol Howe; Laura Jungst; Joan Louie; Christine Mai; Ralph Martinez; Kerry Overton; Brian P. Staab; Rory Steinke; Mark. Weinhold

    2013-01-01

    Existing models and predictions project serious changes to worldwide hydrologic processes as a result of global climate change. Projections indicate that significant change may threaten National Forest System watersheds that are an important source of water used to support people, economies, and ecosystems.Wildland managers are expected to anticipate and...

  3. Watershed Fact Sheet: Improving Utah's Water Quality, Little Bear River Watershed

    OpenAIRE

    2014-01-01

    The Little Bear River drains 185,000 acres at the southern end of Cache Valley in northern Utah. The river has two main forks that travel through relatively narrow and steep valleys, meeting at the approximate midpoint of the watershed near the town of Paradise.

  4. [Watershed water environment pollution models and their applications: a review].

    Science.gov (United States)

    Zhu, Yao; Liang, Zhi-Wei; Li, Wei; Yang, Yi; Yang, Mu-Yi; Mao, Wei; Xu, Han-Li; Wu, Wei-Xiang

    2013-10-01

    Watershed water environment pollution model is the important tool for studying watershed environmental problems. Through the quantitative description of the complicated pollution processes of whole watershed system and its parts, the model can identify the main sources and migration pathways of pollutants, estimate the pollutant loadings, and evaluate their impacts on water environment, providing a basis for watershed planning and management. This paper reviewed the watershed water environment models widely applied at home and abroad, with the focuses on the models of pollutants loading (GWLF and PLOAD), water quality of received water bodies (QUAL2E and WASP), and the watershed models integrated pollutant loadings and water quality (HSPF, SWAT, AGNPS, AnnAGNPS, and SWMM), and introduced the structures, principles, and main characteristics as well as the limitations in practical applications of these models. The other models of water quality (CE-QUAL-W2, EFDC, and AQUATOX) and watershed models (GLEAMS and MIKE SHE) were also briefly introduced. Through the case analysis on the applications of single model and integrated models, the development trend and application prospect of the watershed water environment pollution models were discussed.

  5. Integrated landscape/hydrologic modeling tool for semiarid watersheds

    Science.gov (United States)

    Mariano Hernandez; Scott N. Miller

    2000-01-01

    An integrated hydrologic modeling/watershed assessment tool is being developed to aid in determining the susceptibility of semiarid landscapes to natural and human-induced changes across a range of scales. Watershed processes are by definition spatially distributed and are highly variable through time, and this approach is designed to account for their spatial and...

  6. An approach to measure parameter sensitivity in watershed hydrological modelling

    Science.gov (United States)

    Hydrologic responses vary spatially and temporally according to watershed characteristics. In this study, the hydrologic models that we developed earlier for the Little Miami River (LMR) and Las Vegas Wash (LVW) watersheds were used for detail sensitivity analyses. To compare the...

  7. Sources and transport of nitrogen in arid urban watersheds

    Energy Technology Data Exchange (ETDEWEB)

    Hale, Rebecca L.; Turnbull, Laura; Earl, Stevan; Grimm, Nancy B.; Riha, Krystin M.; Michalski, Greg; Lohse, Kathleen; Childers, Daniel L.

    2014-06-03

    Urban watersheds are often sources of nitrogen (N) to downstream systems, contributing to poor water quality. However, it is unknown which components (e.g., land cover and stormwater infrastructure type) of urban watersheds contribute to N export and which may be sites of retention. In this study we investigated which watershed characteristics control N sourcing, biogeochemical processing of nitrate (NO3–) during storms, and the amount of rainfall N that is retained within urban watersheds. We used triple isotopes of NO3– (δ15N, δ18O, and Δ17O) to identify sources and transformations of NO3– during storms from 10 nested arid urban watersheds that varied in stormwater infrastructure type and drainage area. Stormwater infrastructure and land cover—retention basins, pipes, and grass cover—dictated the sourcing of NO3– in runoff. Urban watersheds can be strong sinks or sources of N to stormwater depending on the proportion of rainfall that leaves the watershed as runoff, but we found no evidence that denitrification occurred during storms. Our results suggest that watershed characteristics control the sources and transport of inorganic N in urban stormwater but that retention of inorganic N at the timescale of individual runoff events is controlled by hydrologic, rather than biogeochemical, mechanisms.

  8. The Watershed Transform : Definitions, Algorithms and Parallelization Strategies

    NARCIS (Netherlands)

    Roerdink, Jos B.T.M.; Meijster, Arnold

    2000-01-01

    The watershed transform is the method of choice for image segmentation in the field of mathematical morphology. We present a critical review of several definitions of the watershed transform and the associated sequential algorithms, and discuss various issues which often cause confusion in the liter

  9. Watershed Scale Optimization to Meet Sustainable Cellulosic Energy Crop Demand

    Energy Technology Data Exchange (ETDEWEB)

    Chaubey, Indrajeet [Purdue Univ., West Lafayette, IN (United States); Cibin, Raj [Purdue Univ., West Lafayette, IN (United States); Bowling, Laura [Purdue Univ., West Lafayette, IN (United States); Brouder, Sylvie [Purdue Univ., West Lafayette, IN (United States); Cherkauer, Keith [Purdue Univ., West Lafayette, IN (United States); Engel, Bernard [Purdue Univ., West Lafayette, IN (United States); Frankenberger, Jane [Purdue Univ., West Lafayette, IN (United States); Goforth, Reuben [Purdue Univ., West Lafayette, IN (United States); Gramig, Benjamin [Purdue Univ., West Lafayette, IN (United States); Volenec, Jeffrey [Purdue Univ., West Lafayette, IN (United States)

    2017-03-24

    The overall goal of this project was to conduct a watershed-scale sustainability assessment of multiple species of energy crops and removal of crop residues within two watersheds (Wildcat Creek, and St. Joseph River) representative of conditions in the Upper Midwest. The sustainability assessment included bioenergy feedstock production impacts on environmental quality, economic costs of production, and ecosystem services.

  10. A Disjoint Set Algorithm for the Watershed Transform

    NARCIS (Netherlands)

    Meijster, Arnold; Roerdink, Jos B.T.M.; Theodoridis, S; Pitas, I; Stouraitis, A; Kalouptsidis, N

    1998-01-01

    In this paper the implementation of a watershed transform based on Tarjan’s Union-Find algorithm is described. The algorithm computes the watershed as defined previously. The algorithm consists of two stages. In the first stage the image to be segmented is transformed into a lower complete image,

  11. Hydrological processes of reference watersheds in Experimental Forests, USA

    Science.gov (United States)

    Devendra Amatya; John Campbell; Pete Wohlgemuth; Kelly Elder; Stephen Sebestyen; Sherri Johnson; Elizabeth Keppeler; Mary Beth Adams; Peter Caldwell; D. Misra

    2016-01-01

    Long-term research at small, gauged, forested watersheds within the USDA Forest Service, Experimental Forest and Range network (USDA-EFR) has contributed substantially to our current understanding of relationships between forests and streamflow (Vose et al., 2014). Many of these watershed studies were established in the early to mid-20th century and have been used to...

  12. A Disjoint Set Algorithm for the Watershed Transform

    NARCIS (Netherlands)

    Meijster, Arnold; Roerdink, Jos B.T.M.; Theodoridis, S; Pitas, I; Stouraitis, A; Kalouptsidis, N

    1998-01-01

    In this paper the implementation of a watershed transform based on Tarjan’s Union-Find algorithm is described. The algorithm computes the watershed as defined previously. The algorithm consists of two stages. In the first stage the image to be segmented is transformed into a lower complete image, us

  13. Accountability to Public Stakeholders in Watershed-Based Restoration

    Science.gov (United States)

    There is an increasing push at the federal, state, and local levels for watershed-based conservation projects. These projects work to address water quality issues in degraded waterways through the implementation of a suite of best management practices on land throughout a watersh...

  14. An environmental assessment of United States drinking water watersheds

    Science.gov (United States)

    James Wickham; Timothy Wade; Kurt Riitters

    2011-01-01

    Abstract There is an emerging recognition that natural lands and their conservation are important elements of a sustainable drinking water infrastructure. We conducted a national, watershed-level environmental assessment of 5,265 drinking water watersheds using data on land cover, hydrography and conservation status. Approximately 78% of the conterminous United States...

  15. Effects of conservation practices on fishes within agricultural watersheds

    Science.gov (United States)

    Conservation practices have been regularly implemented within agricultural watersheds in the United States without documentation of their impacts. The goal of the ARS Conservation Effects Assessment Project Watershed Assessment Study is to quantify the effect of conservation practices within 14 agri...

  16. Implementing watershed investment programs to restore fire-adapted forests for watershed services

    Science.gov (United States)

    Springer, A. E.

    2013-12-01

    Payments for ecosystems services and watershed investment programs have created new solutions for restoring upland fire-adapted forests to support downstream surface-water and groundwater uses. Water from upland forests supports not only a significant percentage of the public water supplies in the U.S., but also extensive riparian, aquatic, and groundwater dependent ecosystems. Many rare, endemic, threatened, and endangered species are supported by the surface-water and groundwater generated from the forested uplands. In the Ponderosa pine forests of the Southwestern U.S., post Euro-American settlement forest management practices, coupled with climate change, has significantly impacted watershed functionality by increasing vegetation cover and associated evapotranspiration and decreasing runoff and groundwater recharge. A large Collaborative Forest Landscape Restoration Program project known as the Four Forests Restoration Initiative is developing landscape scale processes to make the forests connected to these watersheds more resilient. However, there are challenges in financing the initial forest treatments and subsequent maintenance treatments while garnering supportive public opinion to forest thinning projects. A solution called the Flagstaff Watershed Protection Project is utilizing City tax dollars collected through a public bond to finance forest treatments. Exit polling from the bond election documented the reasons for the 73 % affirmative vote on the bond measure. These forest treatments have included in their actions restoration of associated ephemeral stream channels and spring ecosystems, but resources still need to be identified for these actions. A statewide strategy for developing additional forest restoration resources outside of the federal financing is being explored by state and local business and governmental leaders. Coordination, synthesis, and modeling supported by a NSF Water Sustainability and Climate project has been instrumental in

  17. Surface runoff in the Itaim Watershed

    Directory of Open Access Journals (Sweden)

    Getulio Teixeira Batista

    2007-06-01

    Full Text Available This paper describes a work done in the Itaim watershed at Taubaté, SP, and had the objective of estimating the surface runoff based on the Curve-Number (CN method in area with vegetation cover of grassland (Brachiaria Decumbens, that prevails in this watershed. The surface runoff was estimated using three different methods: 1st values of accumulated Infiltration (IAc obtained in the field were used, considered as the Potential Infiltration (S, which varied from 15.37 mm to 51.88 mm with an average value of 23.46 mm. With those measured infiltration rates and using the maximum precipitation values for Taubaté, SP, with duration time of 3 hours: P = 54.4; 70.3; 80.8; 86.7; 90.9; 94.1 and 103.9 mm, respectively, for the return times, Tr = 2, 5, 10, 15, 25, 50 and 100 years, the following values of surface runoff were generated: 34.83; 49.33; 59.14; 64.71; 68.69; 71.73 and 81.10 mm, respectively; In the 2nd method it was considered that the prevailing vegetation cover of the watershed was Dirty Pasture (Pasture with regrowth of natural vegetation and therefore, a value of CN = 75 was used and generated a potential infiltration, S = 84,7 mm and resulted in surface runoff values that varied from 11 to 44 mm; In the 3rd method, the value of CN was considered equal to 66.57. This value was calculated weighting the contribution of all land use cover classes of the watershed, and as a result a higher value of potential infiltration, S = 127 mm, was obtained. Consequently, the surface runoff values were 5.33; 11.64; 16.72; 19.83; 22.16; 23.98 and 29.83 mm, respectively. Therefore, the comparison with the results obtained by the two Curve-Number methods (conventional and weighted allowed to be concluded that the Curve-Number method applied in a conventional way underestimated the surface runoff in the studied area. However, results indicate that it is possible to use this method for surface runoff estimates as long as adjustments based on potential

  18. 17 January 2014 - Y. Sakurada Japanese Senior Vice Minister of Education, Culture, Sports, Science and Technology signing the Guest book with CERN Director-General R. Heuer and visiting the LHC tunnel at Point 1 with Technology Department Head J.M. Jiménez. Head of International Relations R. Voss present throughout.

    CERN Multimedia

    Pantelia, Anna

    2014-01-01

    17 January 2014 - Y. Sakurada Japanese Senior Vice Minister of Education, Culture, Sports, Science and Technology signing the Guest book with CERN Director-General R. Heuer and visiting the LHC tunnel at Point 1 with Technology Department Head J.M. Jiménez. Head of International Relations R. Voss present throughout.

  19. Rafael Mérida Jiménez, Transmisión y difusión de la literatura caballeresca. Doce estudios de recepción cultural hispánica (siglos XIII-XVII), Lleida, Edicions de la Universitat de Lleida,2013. 214 pp.

    OpenAIRE

    Neri, Stefano

    2013-01-01

    Reseña del libro: Rafael Mérida Jiménez, Transmisión y difusión de la literatura caballeresca. Doce estudios de recepción cultural hispánica (siglos XIII-XVII), Lleida, Edicions de la Universitat de Lleida,2013. 214 pp.

  20. 1 April 2014 - President of the Parliament of the Principality of Liechtenstein A. Frick and his delegation visiting the LHC tunnel at Point 1 with Technology Department Head J.M. Jiménez and signing the Guest book with CERN Director-General R. Heuer. Deputy Head of International Relations E. Tsesmelis present throughout.

    CERN Document Server

    Pantelia, Anna

    2014-01-01

    1 April 2014 - President of the Parliament of the Principality of Liechtenstein A. Frick and his delegation visiting the LHC tunnel at Point 1 with Technology Department Head J.M. Jiménez and signing the Guest book with CERN Director-General R. Heuer. Deputy Head of International Relations E. Tsesmelis present throughout.

  1. Phosphorus losses from an irrigated watershed in the Northwestern U.S.: Case study of the Upper Snake Rock Watershed

    Science.gov (United States)

    Watersheds utilizing surface water for irrigation often return a portion of the water to a water body. This irrigation return flow often includes sediment and nutrients that reduce the quality of the receiving water body. Research in the 82,000 ha Upper Snake Rock (USR) watershed from 2005 to 2008 s...

  2. Hydroelectricity production and forest conservation in watersheds.

    Science.gov (United States)

    Guo, Zhongwei; Li, Yiming; Xiao, Xiangming; Zhang, Lin; Gan, Yaling

    2007-09-01

    Globally, particularly in developing countries, hydroelectricity production and economic growth occur together with ecosystem/biodiversity conservation in watersheds. There is a relationship between hydroelectricity production and ecosystem/biodiversity conservation in watersheds, centering on the supply and demand for ecosystem services of river water flow regulation and sediment retention. Here we show that, in the upper reach of the Yangtze River, hydroelectricity production of Three Gorges Hydroelectric Power Plant can form a beneficial relationship with forest conservation through the paid use (compensating residents for their cooperation in the conservation) of ecosystem services launched by the National Natural Forest Protection Project. This interaction can provide additional incentives to encourage local communities' long-term cooperation in conserving and protecting the restored forest ecosystems. Hydroelectricity plants also obtain benefits from this interaction. The industrialization of ecosystem services supply provides an operational framework for this beneficial interaction. Sustainable forest ecosystem conservation will require developing new institutions and policies and must involve local communities in the conservation and protection of their local forests.

  3. PDE Based Algorithms for Smooth Watersheds.

    Science.gov (United States)

    Hodneland, Erlend; Tai, Xue-Cheng; Kalisch, Henrik

    2016-04-01

    Watershed segmentation is useful for a number of image segmentation problems with a wide range of practical applications. Traditionally, the tracking of the immersion front is done by applying a fast sorting algorithm. In this work, we explore a continuous approach based on a geometric description of the immersion front which gives rise to a partial differential equation. The main advantage of using a partial differential equation to track the immersion front is that the method becomes versatile and may easily be stabilized by introducing regularization terms. Coupling the geometric approach with a proper "merging strategy" creates a robust algorithm which minimizes over- and under-segmentation even without predefined markers. Since reliable markers defined prior to segmentation can be difficult to construct automatically for various reasons, being able to treat marker-free situations is a major advantage of the proposed method over earlier watershed formulations. The motivation for the methods developed in this paper is taken from high-throughput screening of cells. A fully automated segmentation of single cells enables the extraction of cell properties from large data sets, which can provide substantial insight into a biological model system. Applying smoothing to the boundaries can improve the accuracy in many image analysis tasks requiring a precise delineation of the plasma membrane of the cell. The proposed segmentation method is applied to real images containing fluorescently labeled cells, and the experimental results show that our implementation is robust and reliable for a variety of challenging segmentation tasks.

  4. Dos visiones del «Estrecho dudoso»: España y América (Ángel Martínez Baigorri y Ernesto Cardenal)

    OpenAIRE

    Aizpún, P. (Pilar)

    1994-01-01

    El «Estrecho dudoso» es el terrritorio nicaragüense que un día pudo convertirse en el primer canal transoceánico de América. Los avalares de la historia hicieron que el proyecto se llevara a cabo en Panamá, y desde entonces, este sueño no realizado se convirtió en el símbolo de todas las frustraciones históricas y políticas del pequeño país centroamericano. El tema aparece en la poesía de Ángel Martínez Baigoni (Río hasta el fin) y en la de Ernesto Cardenal (El Estrecho Dudoso). En el prim...

  5. La educación musical en la España del siglo XVI a través del Arte de canto llano (Sevilla, 1530) de Juan Martínez

    OpenAIRE

    Mazuela-Anguita, Ascensión

    2011-01-01

    El Arte de canto llano (Sevilla, 1530) de Juan Martínez, maestro de los mozos de coro de la Catedral de Sevilla, emerge como el tratado de música del mundo hispánico más difundido geográfica y cronológicamente en los siglos XVI y XVII , pero del que casi nada se sabía. El libro fue reeditado durante casi un siglo en los reinos de Castilla, Aragón y Portugal (traducido al portugués), y tuvo una enorme difusión en la Península Ibérica y en el mercado con el Nuevo Mundo. En est...

  6. Diagnóstico del estado de conservación de los libros patrimoniales, antiguos, raros y valiosos del siglo xix de la Biblioteca Pública Provincial “Rubén Martínez Villena” de La Habana

    Directory of Open Access Journals (Sweden)

    Lic. Esperanza González Álvarez

    2013-12-01

    Full Text Available This paper focuses on a diagnosis useful to determine the state of conservation of 19th century books included in the Heritage, Antique, Rare and Valuable Fund of the Provincial Public Library Rubén Martínez Villena of Havana. The method used was the Diagnosis for Printed Collections of the Institute of Cuban History. By means of the statistic analysis of a sample, this method makes easier an approximation to determine the general conservation state of a collection. The research goals were: to determine the characteristics and physical state of the paper and the texts; to detect the degree of damages caused by biological agents, handling and interventive repairs which may have affected the documents. The research results will enable specialists to take measures in order to decrease, in a long or short term; damages detected in the collection and guarantee its conservation and utility for future generations.

  7. ¿Es posible provocar la madurez del conflicto? A propósito de la correspondencia entre Medófilo Medina y Timoleón Jiménez

    Directory of Open Access Journals (Sweden)

    Adolfo León Atehortúa Cruz

    2012-08-01

    Full Text Available A partir del intercambio epistolar entre Medófilo Medina y Timoleón Jiménez, el presente artículo debate los puntos centrales de la correspondencia aludida: la vigencia de la lucha armada, la concepción de dominación y dependencia y las vías de la democracia en Colombia. Finalmente, explora la madurez del conflicto armado en nuestro país y las posibilidades de una salida negociada con participación de la sociedad. Como conclusión, ofrece respuesta a dos preguntas: ¿Será posible una salida negociada que preserve la dignidad de los combatientes? Más aún, ¿será posible inducir esa salida desde la sociedad?

  8. Historias y viñetas, una versión del pasado traumático. Carlos Giménez: variaciones entre España y Argentina

    Directory of Open Access Journals (Sweden)

    Néstor Bórquez

    2013-12-01

    Full Text Available The following paper shall focus especially on the work of Carlos Giménez, a comic author from Madrid who attempts to represent there Spanish daily life from Civil War times up to the end of the Francoist regime –and his own life experience displays there an unavoidable reference point: 36-39 Malos tiempos, but mostly Paracuellos and Barrio are part of his own life story during the Civil War and the Francoist regime. In Argentina, authors such as Mariano Grassi or María Delia Lozupone and Rafael Cippolini try a similar intimist gaze upon the representation of dictatorship times in Argentina. This paper shall seek to establish a dialogue between these manifestations, attempting thereby to analyze the intimate plot of history and representation in these comic books.

  9. The chemical characterization of the aroma of dessert and sparkling white wines (Pedro Ximénez, Fino, Sauternes, and Cava) by gas chromatography-olfactometry and chemical quantitative analysis.

    Science.gov (United States)

    Campo, Eva; Cacho, Juan; Ferreira, Vicente

    2008-04-09

    Wines from Pedro Ximénez (PX), Fino, botrytized Sauternes, and Cava were screened by gas chromatography-olfactometry (GC-O), and the most relevant aroma compounds were further quantified in six different wines of each group. The comparison of GC-O and quantitative data with similar data from white young wines has made it possible to identify the aroma compounds potentially responsible for the specific sensory characteristics of these wines. Results have shown that all these wines are relatively rich in 3-methylbutanal, phenylacetaldehyde, methional, sotolon, and the ethyl esters of 2-, 3-, and 4-methylpentanoic acids. While Cava has a less specific aroma profile halfway between these special wines and young white wines, PX is richest in 3-methylbutanal, furfural, beta-damascenone, ethyl cyclohexanoate, and sotolon; Fino in acetaldehyde, diacetyl, ethyl esters of branched aliphatic acids with four, five, or six carbon atoms, and 4-ethylguaiacol; and Sauternes in phenylacetaldehyde, 3-mercaptohexanol, and 4-methyl-4-mercaptopentanone.

  10. SWAT ASSESSMENT OF MANAGEMENT PRACTICES ON ATRAZINE LOSS IN THE GOOD WATER CREEK EXPERIMENTAL WATERSHED.

    Science.gov (United States)

    The Goodwater Creek Watershed is a subwatershed of the Mark Twain Lake watershed, an ARS-CEAP benchmark watershed in Northeast Missouri. This 7,250-ha watershed was selected for initial modeling because of its smaller size and the large hydrologic and climatologic dataset available. A SWAT model of ...

  11. De por qué Juan Ramón Jiménez renunció a ser novelista: el poeta y su teoría de la novela

    Directory of Open Access Journals (Sweden)

    Sanz Manzano, M. Ángeles

    2003-12-01

    Full Text Available This article has attempts et explain the reason behind the renunciation of the novel by Juan Ramón Jiménez, apart from possessing a notable capacity for invention and deeply involved in this period in expressing his innovative ideas, Juan Ramón came uo against an impossible obstacle in his plans to develop and express his ideas trough the novel. His aim was to write novels in his capacity as a poet. As a result he wished to create novels as prolongation of his poems. The poet realised the futility of his undertaking when he saw that his major aesthetic norms did not coincide with the genre of the novel, not even in the «novela lírica» and Platero y yo which remain his closest prose expression to poetry.Este artículo tiene por objeto explicar las razones de la renuncia de Juan Ramón Jiménez a convertirse en novelista. A pesar de poseer una notable capacidad inventiva y de estar inmerso en la época más propicia para materializarla, Juan Ramón encuentra un obstáculo insalvable para desarrollar su faceta de novelista. Su propósito era escribir novelas desde su condición de poeta. En consecuencia, quería hacer de sus novelas una prolongación de su poesía. El poeta se percató de lo inviable de su empresa cuando comprobó que algunas de sus normas estéticas no se adecuaban al género de la novela, ni siquiera en su manifestación más cercana a la poesía («novela lírica».

  12. Las novelas “utópicas” de Rafael Arévalo Martínez / Rafael Arévalo Martinez’s “utopian novels”

    Directory of Open Access Journals (Sweden)

    Emiliano Coello Gutiérrez

    2010-07-01

    Full Text Available RESUMEN: Este artículo analiza Viaje a Ipanda y El mundo de los maharachías, dos novelas que han sido poco estudiadas por la crítica arevaliana. En este artículo se insiste en la diferencia genérica entre novela utópica y novela de ciencia ficción. A esta última categoría pertenecen las dos novelas de Arévalo. El hecho de que este autor escribiera novelas de ciencia ficción en la Guatemala de los años 30, lo convierte en un pionero de las letras centroamericanas no solo a nivel estético, sino también a nivel ideológico.ABSTRACT: This article examines two novels by Rafael Arévalo Martínez entitled Viaje a Ipanda and El mundo de los maharachías. The aim of it is to shed new light on novels too often disregarded by criticism and show that unlike what is commonly held—that both of them are “utopian novels”—Viaje a Ipanda and El mundo de los maharachías must be understood as science fiction. Arévalo Martínezʼs choice to write science fiction novels in the Guatemala of the 30ʼs makes him a pioneer of Central American literature, not only on an aesthetic level but also on an ideological one.

  13. Grays River Watershed and Biological Assessment Final Report 2006.

    Energy Technology Data Exchange (ETDEWEB)

    May, Christopher W.; McGrath, Kathleen E.; Geist, David R. [Pacific Northwest National Laboratory; Abbe, Timothy; Barton, Chase [Herrera Environmental Consultants, Inc.

    2008-02-04

    The Grays River Watershed and Biological Assessment was funded to address degradation and loss of spawning habitat for chum salmon (Onchorhynchus keta) and fall Chinook salmon (Onchoryhnchus tshawytscha). In 1999, the National Marine Fisheries Service listed lower Columbia River chum salmon as a threatened Evolutionarily Significant Unit (ESU) under the Endangered Species Act of 1973 (ESA). The Grays River watershed is one of two remaining significant chum salmon spawning locations in this ESU. Runs of Grays River chum and Chinook salmon have declined significantly during the past century, largely because of damage to spawning habitat associated with timber harvest and agriculture in the watershed. In addition, approximately 20-25% of the then-remaining chum salmon spawning habitat was lost during a 1999 channel avulsion that destroyed an important artificial spawning channel operated by the Washington Department of Fish and Wildlife (WDFW). Although the lack of stable, high-quality spawning habitat is considered the primary physical limitation on Grays River chum salmon production today, few data are available to guide watershed management and channel restoration activities. The objectives of the Grays River Watershed and Biological Assessment project were to (1) perform a comprehensive watershed and biological analysis, including hydrologic, geomorphic, and ecological assessments; (2) develop a prioritized list of actions that protect and restore critical chum and Chinook salmon spawning habitat in the Grays River based on comprehensive geomorphic, hydrologic, and stream channel assessments; and (3) gain a better understanding of chum and Chinook salmon habitat requirements and survival within the lower Columbia River and the Grays River. The watershed-based approach to river ecosystem restoration relies on a conceptual framework that describes general relationships between natural landscape characteristics, watershed-scale habitat-forming processes, aquatic

  14. Grays River Watershed and Biological Assessment, 2006 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    May, Christopher; Geist, David [Pacific Northwest National Laboratory

    2007-04-01

    The Grays River Watershed and Biological Assessment was funded to address degradation and loss of spawning habitat for chum salmon (Onchorhynchus keta) and fall Chinook salmon (Onchoryhnchus tshawytscha). In 1999, the National Marine Fisheries Service listed lower Columbia River chum salmon as a threatened Evolutionarily Significant Unit (ESU) under the Endangered Species Act of 1973 (ESA). The Grays River watershed is one of two remaining significant chum salmon spawning locations in this ESU. Runs of Grays River chum and Chinook salmon have declined significantly during the past century, largely because of damage to spawning habitat associated with timber harvest and agriculture in the watershed. In addition, approximately 20-25% of the then-remaining chum salmon spawning habitat was lost during a 1999 channel avulsion that destroyed an important artificial spawning channel operated by the Washington Department of Fish and Wildlife (WDFW). Although the lack of stable, high-quality spawning habitat is considered the primary physical limitation on Grays River chum salmon production today, few data are available to guide watershed management and channel restoration activities. The objectives of the Grays River Watershed and Biological Assessment project were to (1) perform a comprehensive watershed and biological analysis, including hydrologic, geomorphic, and ecological assessments; (2) develop a prioritized list of actions that protect and restore critical chum and Chinook salmon spawning habitat in the Grays River based on comprehensive geomorphic, hydrologic, and stream channel assessments; and (3) gain a better understanding of chum and Chinook salmon habitat requirements and survival within the lower Columbia River and the Grays River. The watershed-based approach to river ecosystem restoration relies on a conceptual framework that describes general relationships between natural landscape characteristics, watershed-scale habitat-forming processes, aquatic

  15. Beyond formal groups: neighboring acts and watershed protection in Appalachia

    Directory of Open Access Journals (Sweden)

    Heather Lukacs

    2016-09-01

    Full Text Available This paper explores how watershed organizations in Appalachia have persisted in addressing water quality issues in areas with a history of coal mining. We identified two watershed groups that have taken responsibility for restoring local creeks that were previously highly degraded and sporadically managed. These watershed groups represent cases of self-organized commons governance in resource-rich, economically poor Appalachian communities. We describe the extent and characteristics of links between watershed group volunteers and watershed residents who are not group members. Through surveys, participant observation, and key-informant consultation, we found that neighbors – group members as well as non-group-members – supported the group's function through informal neighboring acts. Past research has shown that local commons governance institutions benefit from being nested in supportive external structures. We found that the persistence and success of community watershed organizations depends on the informal participation of local residents, affirming the necessity of looking beyond formal, organized groups to understand the resources, expertise, and information needed to address complex water pollution at the watershed level. Our findings augment the concept of nestedness in commons governance to include that of a formal organization acting as a neighbor that exchanges informal neighboring acts with local residents. In this way, we extend the concept of neighboring to include interactions between individuals and a group operating in the same geographic area.

  16. Watershed management for water supply in developing world city

    Institute of Scientific and Technical Information of China (English)

    车越; 杨凯; 吕永鹏; 张宏伟; 吴健; 杨永川

    2009-01-01

    The water supply system in Shanghai provides about 2.55×109 m3/a,of which more than 50% is derived from the Upper Huangpu River Watershed. During the process of rapid urbanization and industrialization,the role of watershed management in sustaining clean drinking water quality at surface sources is emphasized in Shanghai. This paper proposes an integrated watershed management (IWM) approach in the context of the current pressures and problems of source water protection at the Upper Huangpu River Watershed in Shanghai. Based on data sets of land use,water quality and regional development,multi-criteria analysis and system dynamics techniques were used to evaluate effectiveness and improve decision-making of source water protection at a watershed scale. Different scenarios for potential source water quality changing from 2008 to 2020 were predicted,based on a systematic analysis and system dynamics modeling,a watershed management approach integrating land use prioritization and stakeholder involvement was designed to conserve the source water quality. The integrated watershed management (IWM) approach may help local authorities better understand and address the complex source water system,and develop improved safe drinking water strategies to better balance urban expansion and source water protection.

  17. Sources and transport of nitrogen in arid urban watersheds.

    Science.gov (United States)

    Hale, Rebecca L; Turnbull, Laura; Earl, Stevan; Grimm, Nancy; Riha, Krystin; Michalski, Greg; Lohse, Kathleen A; Childers, Daniel

    2014-06-03

    Urban watersheds are often sources of nitrogen (N) to downstream systems, contributing to poor water quality. However, it is unknown which components (e.g., land cover and stormwater infrastructure type) of urban watersheds contribute to N export and which may be sites of retention. In this study we investigated which watershed characteristics control N sourcing, biogeochemical processing of nitrate (NO3-) during storms, and the amount of rainfall N that is retained within urban watersheds. We used triple isotopes of NO3- (δ15N, δ18O, and Δ17O) to identify sources and transformations of NO3- during storms from 10 nested arid urban watersheds that varied in stormwater infrastructure type and drainage area. Stormwater infrastructure and land cover--retention basins, pipes, and grass cover--dictated the sourcing of NO3- in runoff. Urban watersheds were strong sinks or sources of N to stormwater depending on runoff, which in turn was inversely related to retention basin density and positively related to imperviousness and precipitation. Our results suggest that watershed characteristics control the sources and transport of inorganic N in urban stormwater but that retention of inorganic N at the time scale of individual runoff events is controlled by hydrologic, rather than biogeochemical, mechanisms.

  18. Slope spectrum variation in a simulated loess watershed

    Science.gov (United States)

    Li, Fayuan; Tang, Guoan; Wang, Chun; Cui, Lingzhou; Zhu, Rui

    2016-06-01

    A simulated loess watershed, where the loess material and relief properly represent the true loess surface, is adopted to investigate the variation in slope spectrum with loess watershed evolution. The evolution of the simulated loess watershed was driven by the exogenetic force of artificial rainfall. For a period of three months, twenty artificial rainfall events with different intensities and durations were carried out. In the process, nine DEM data sets, each with 10 mm grid resolution, were established by the method of close-range photogrammetry. The slope spectra were then extracted from these DEMs. Subsequent series of carefully designed quantitative analyses indicated a strong relationship between the slope spectrum and the evolution of the simulated loess watershed. Quantitative indices of the slope spectrum varied regularly following the evolution of the simulated loess watershed. Mean slope, slope spectrum information entropy ( H), terrain driving force ( T d ), Mean patch area ( AREA_MN), Contagion Index ( CONTAG), and Patch Cohesion Index ( COHESION) kept increasing following the evolution of the simulated watershed, while skewness ( S), Perimeter-Area Fractal Dimension ( PAFRAC), and Interspersion and Juxtaposition Index ( IJI) represented an opposite trend. All the indices changed actively in the early and active development periods, but slowly in the stable development periods. These experimental results indicate that the time series of slope spectra was able to effectively depict the slope distribution of the simulated loess watershed, thus presenting a potential method for modeling loess landforms.

  19. Watershed responses to Amazon soya bean cropland expansion and intensification.

    Science.gov (United States)

    Neill, Christopher; Coe, Michael T; Riskin, Shelby H; Krusche, Alex V; Elsenbeer, Helmut; Macedo, Marcia N; McHorney, Richard; Lefebvre, Paul; Davidson, Eric A; Scheffler, Raphael; Figueira, Adelaine Michela e Silva; Porder, Stephen; Deegan, Linda A

    2013-06-05

    The expansion and intensification of soya bean agriculture in southeastern Amazonia can alter watershed hydrology and biogeochemistry by changing the land cover, water balance and nutrient inputs. Several new insights on the responses of watershed hydrology and biogeochemistry to deforestation in Mato Grosso have emerged from recent intensive field campaigns in this region. Because of reduced evapotranspiration, total water export increases threefold to fourfold in soya bean watersheds compared with forest. However, the deep and highly permeable soils on the broad plateaus on which much of the soya bean cultivation has expanded buffer small soya bean watersheds against increased stormflows. Concentrations of nitrate and phosphate do not differ between forest or soya bean watersheds because fixation of phosphorus fertilizer by iron and aluminium oxides and anion exchange of nitrate in deep soils restrict nutrient movement. Despite resistance to biogeochemical change, streams in soya bean watersheds have higher temperatures caused by impoundments and reduction of bordering riparian forest. In larger rivers, increased water flow, current velocities and sediment flux following deforestation can reshape stream morphology, suggesting that cumulative impacts of deforestation in small watersheds will occur at larger scales.

  20. Trout Creek, Oregon Watershed Assessment; Findings, Condition Evaluation and Action Opportunities, 2002 Technical Report.

    Energy Technology Data Exchange (ETDEWEB)

    Runyon, John

    2002-08-01

    The purpose of the assessment is to characterize historical and current watershed conditions in the Trout Creek Watershed. Information from the assessment is used to evaluate opportunities for improvements in watershed conditions, with particular reference to improvements in the aquatic environment. Existing information was used, to the extent practicable, to complete this work. The assessment will aid the Trout Creek Watershed Council in identifying opportunities and priorities for watershed restoration projects.

  1. Design of Water Discharge of Medewi Watershed Using Avswat Model

    Science.gov (United States)

    Pramana, Y. H.; Purwanto, B. P.

    2013-12-01

    Medewi watersheds is located in the southern of Bali Island and its estuary is located in Medewi Beach at Kabupaten Jembrana. The exact location of Medewi watersheds is between Desa Medewi and Desa Pulukan, Kecamatan Pekutatan, Kabupaten Jembrana. The watersheds itself, due to its strategic location is used as a territorial border between the two villages. Geographically, Medewi watersheds is between 114o48'00' - 114o50'00' east longitude and 08o20'00' - 08o26,5'00' south latitude. The main river of Medewi Watersheds is 25,64 km long and is classified as a continuous river, the width of the watersheds itself is measured 128,2 km2. Medewi watersheds have two tributaries which is Medaan watersheds and Pangliman watersheds, both watersheds' heads are located in Medewi Beach. Medewi watersheds is often flooded and brings heavy toll to its surrounding areas and citizen. Therefore, there is an urgent need to perform engineering techniques to overcome the aforementioned problem. However, there is a slight issue in the definition of water discharge plan in the location. The water discharge plan, which is used as a basis to prevent flooding, is often inaccurate. That is the reason why it is needed to build a model in order to accurately find out the amount of water discharge in the study location. Medewi watersheds' area usage is as follow: bushes (9,44%), forestation (77,10%), farm (7,76%), settlement (2,15%), irrigation field (1,64%), rainfed field (1,88%) and crops field (0,48%). The result of our modeling using ASVAT shows that the maximum water discharge is 149,9 m3/sec. The discharge is calibrated with the available water discharge data log. According to AWLR data, it is known that the largest discharge occurred on June 2nd, 2009 and measured at 147,9 m3/sec. Our conclusion is that the model used in this study managed to approach the field result with minimum error.

  2. LANDSLIDE POTENTIALITY OF THE TSENGWEN RESERVOIR WATERSHED,TAIWAN,CHINA

    Institute of Scientific and Technical Information of China (English)

    Chin-yu LEE

    2004-01-01

    To recognize the geographical characteristics of the landslide areas will be helpful for the watershed management in the reservoir watershed.According to the quantitative analysis,we'll take different scores and weighting for the potential parameters of the landslide areas in the Tsengwen reservoir watershed,and in the meanwhile,we'll extract the different factors,including the slope,aspect,altitude,soil and geological textures etc.,and the results shown as maximum one-day rainfall,ratio of forests and average relief is the most affecting parameters on the potential risk map of landslide areas.

  3. Water-quality investigation of the Tyronza River watershed, Arkansas

    Science.gov (United States)

    Lamb, T.E.

    1978-01-01

    The results of a 1-year study of surface-water quality in the Tyronza River Watershed, Arkansas, are presented to document conditions before implementation of Soil Conservation Service Programs. The report includes a general description of the watershed 's topography, geology, and aquifers, and the results of monthly measurements of discharge at five sites, and several physical and chemical parameters, plus quarterly analyses for several ions and semiannual analyses of bottom material for various pesticides. The results indicate that the quality of the water in the streams and ditches samples is normal for an intensely farmed area such as this watershed. (Woodard-USGS)

  4. Identification and characterization of wetlands in the Bear Creek watershed

    Energy Technology Data Exchange (ETDEWEB)

    Rosensteel, B.A. [JAYCOR, Oak Ridge, TN (United States); Trettin, C.C. [Oak Ridge National Lab., TN (United States)

    1993-10-01

    The primary objective of this study was to identify, characterize, and map the wetlands in the Bear Creek watershed. A preliminary wetland categorization system based on the Cowardin classification system (Cowardin et al. 1979) with additional site-specific topographic, vegetation, and disturbance characteristic modifiers was developed to characterize the type of wetlands that exist in the Bear Creek watershed. An additional objective was to detect possible relationships among site soils, hydrology, and the occurrence of wetlands in the watershed through a comparison of existing data with the field survey. Research needs are discussed in the context of wetland functions and values and regulatory requirements for wetland impact assessment and compensatory mitigation.

  5. Identification and characterization of wetlands in the Bear Creek watershed

    Energy Technology Data Exchange (ETDEWEB)

    Rosensteel, B.A. [JAYCOR, Oak Ridge, TN (United States); Trettin, C.C. [Oak Ridge National Lab., TN (United States)

    1993-10-01

    The primary objective of this study was to identify, characterize, and map the wetlands in the Bear Creek watershed. A preliminary wetland categorization system based on the Cowardin classification system (Cowardin et al. 1979) with additional site-specific topographic, vegetation, and disturbance characteristic modifiers was developed to characterize the type of wetlands that exist in the Bear Creek watershed. An additional objective was to detect possible relationships among site soils, hydrology, and the occurrence of wetlands in the watershed through a comparison of existing data with the field survey. Research needs are discussed in the context of wetland functions and values and regulatory requirements for wetland impact assessment and compensatory mitigation.

  6. Mainstem Clearwater River study: Assessment for Salmonid Spawning, Incubation, and Rearing.

    Energy Technology Data Exchange (ETDEWEB)

    Arnsberg, Billy D.; Connor, William P.; Connor, Edward; Pishl, Markley J.; Whitman, Marc A.

    1992-04-01

    The Nez Perce Tribe sub-contracted with EBASCO Environmental to develop capabilities for predicting fish habitat conditions in the lower mainstem clearwater River under a limited range of discharge regimes from Dworshak Dam. The Nez Perce Tribe used this information to analyze a range of discharges from Dworshak Dam for anadromous fish habitat requirements. The Tribe's analysis does not necessarily reflect views of EBASCO Environmental. Flow analyses provided to the Bonneville Power Administration and/or US Army Corps of Engineers within this report on the lower mainstem Clearwater River shall in no way limit or influence future water rights claims or flow recommendations made by the Nez Perce Tribe for any purposes. Flows analyzed in this report are independent of conditions for upstream or downstream anadromous fish migration and of any other purposes not specifically stated.

  7. Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models

    Science.gov (United States)

    Robertson, Dale M.; Saad, David A.

    2011-01-01

    Nutrient input to the Laurentian Great Lakes continues to cause problems with eutrophication. To reduce the extent and severity of these problems, target nutrient loads were established and Total Maximum Daily Loads are being developed for many tributaries. Without detailed loading information it is difficult to determine if the targets are being met and how to prioritize rehabilitation efforts. To help address these issues, SPAtially Referenced Regressions On Watershed attributes (SPARROW) models were developed for estimating loads and sources of phosphorus (P) and nitrogen (N) from the United States (U.S.) portion of the Great Lakes, Upper Mississippi, Ohio, and Red River Basins. Results indicated that recent U.S. loadings to Lakes Michigan and Ontario are similar to those in the 1980s, whereas loadings to Lakes Superior, Huron, and Erie decreased. Highest loads were from tributaries with the largest watersheds, whereas highest yields were from areas with intense agriculture and large point sources of nutrients. Tributaries were ranked based on their relative loads and yields to each lake. Input from agricultural areas was a significant source of nutrients, contributing ∼33-44% of the P and ∼33-58% of the N, except for areas around Superior with little agriculture. Point sources were also significant, contributing ∼14-44% of the P and 13-34% of the N. Watersheds around Lake Erie contributed nutrients at the highest rate (similar to intensively farmed areas in the Midwest) because they have the largest nutrient inputs and highest delivery ratio.

  8. Using a watershed-based approach to manage and protect water resources in the Bear Canyon Watershed, Albuquerque, New Mexico

    Energy Technology Data Exchange (ETDEWEB)

    Roth, F.J. [Univ. of New Mexico, Albuquerque, NM (United States)

    1995-12-31

    Depending upon how people use land in a watershed, whether it be farming, livestock grazing, timber harvesting, mining, urbanization, or even recreation, all have significant impacts on the water moving through that watershed. This paper will focus on the urban watershed and how stormwater runoff from urbanization affects erosion, sedimentation, and water quality. It also will explore the potential of a watershed as the basis for managing and protecting water resources. Watershed-based management offers a clear look at how land-use changes affect not only water quality but also erosion and sedimentation; in addition, this approach develops preventive strategies to restore those affected water and land resources. The preventive strategies the author uses for this watershed can be applied to other New Mexico urban watersheds. This paper is divided into three parts. The first part shows how past and present land-use activities affect erosion, sedimentation, and water quality in the Bear Canyon arroyo system. The second part provides solutions to the problems of soil erosion and stormwater pollution in the urban areas through government intervention. The third part discusses how Best Management Practices (BMPs) can be used to limit or reduce stormwater pollution in residential and industrial areas.

  9. An integrated multi-level watershed-reservoir modeling system for examining hydrological and biogeochemical processes in small prairie watersheds.

    Science.gov (United States)

    Zhang, Hua; Huang, Guo H; Wang, Dunling; Zhang, Xiaodong; Li, Gongchen; An, Chunjiang; Cui, Zheng; Liao, Renfei; Nie, Xianghui

    2012-03-15

    Eutrophication of small prairie reservoirs presents a major challenge in water quality management and has led to a need for predictive water quality modeling. Studies are lacking in effectively integrating watershed models and reservoir models to explore nutrient dynamics and eutrophication pattern. A water quality model specific to small prairie water bodies is also desired in order to highlight key biogeochemical processes with an acceptable degree of parameterization. This study presents a Multi-level Watershed-Reservoir Modeling System (MWRMS) to simulate hydrological and biogeochemical processes in small prairie watersheds. It integrated a watershed model, a hydrodynamic model and an eutrophication model into a flexible modeling framework. It can comprehensively describe hydrological and biogeochemical processes across different spatial scales and effectively deal with the special drainage structure of small prairie watersheds. As a key component of MWRMS, a three-dimensional Willows Reservoir Eutrophication Model (WREM) is developed to addresses essential biogeochemical processes in prairie reservoirs and to generate 3D distributions of various water quality constituents; with a modest degree of parameterization, WREM is able to meet the limit of data availability that often confronts the modeling practices in small watersheds. MWRMS was applied to the Assiniboia Watershed in southern Saskatchewan, Canada. Extensive efforts of field work and lab analysis were undertaken to support model calibration and validation. MWRMS demonstrated its ability to reproduce the observed watershed water yield, reservoir water levels and temperatures, and concentrations of several water constituents. Results showed that the aquatic systems in the Assiniboia Watershed were nitrogen-limited and sediment flux played a crucial role in reservoir nutrient budget and dynamics. MWRMS can provide a broad context of decision support for water resources management and water quality

  10. Integrated Modeling System for Analysis of Watershed Water Balance: A Case Study in the Tims Branch Watershed, South Carolina

    Science.gov (United States)

    Setegn, S. G.; Mahmoudi, M.; Lawrence, A.; Duque, N.

    2015-12-01

    The Applied Research Center at Florida International University (ARC-FIU) is supporting the soil and groundwater remediation efforts of the U.S. Department of Energy (DOE) Savannah River Site (SRS) by developing a surface water model to simulate the hydrology and the fate and transport of contaminants and sediment in the Tims Branch watershed. Hydrological models are useful tool in water and land resource development and decision-making for watershed management. Moreover, simulation of hydrological processes improves understanding of the environmental dynamics and helps to manage and protect water resources and the environment. MIKE SHE, an advanced integrated modeling system is used to simulate the hydrological processes of the Tim Branch watershed with the objective of developing an integrated modeling system to improve understanding of the physical, chemical and biological processes within the Tims Branch watershed. MIKE SHE simulates water flow in the entire land based phase of the hydrological cycle from rainfall to river flow, via various flow processes such as, overland flow, infiltration, evapotranspiration, and groundwater flow. In this study a MIKE SHE model is developed and applied to the Tim branch watershed to study the watershed response to storm events and understand the water balance of the watershed under different climatic and catchment characteristics. The preliminary result of the integrated model indicated that variation in the depth of overland flow highly depend on the amount and distribution of rainfall in the watershed. The ultimate goal of this project is to couple the MIKE SHE and MIKE 11 models to integrate the hydrological component in the land phase of hydrological cycle and stream flow process. The coupled MIKE SHE/MIKE 11 model will further be integrated with an Ecolab module to represent a range of water quality, contaminant transport, and ecological processes with respect to the stream, surface water and groundwater in the Tims

  11. Impact of watershed topography on hyporheic exchange

    Science.gov (United States)

    Caruso, Alice; Ridolfi, Luca; Boano, Fulvio

    2016-08-01

    Among the interactions between surface water bodies and aquifers, hyporheic exchange has been recognized as a key process for nutrient cycling and contaminant transport. Even though hyporheic exchange is strongly controlled by groundwater discharge, our understanding of the impact of the regional groundwater flow on hyporheic fluxes is still limited because of the complexity arising from the multi-scale nature of these interactions. In this work, we investigate the role of watershed topography on river-aquifer interactions by way of a semi-analytical model, in which the landscape topography is used to approximate the groundwater head distribution. The analysis of a case study shows how the complex topographic structure is the direct cause of a substantial spatial variability of the aquifer-river exchange. Groundwater upwelling along the river corridor is estimated and its influence on the hyporheic zone is discussed. In particular, the fragmentation of the hyporeic corridor induced by groundwater discharge at the basin scale is highlighted.

  12. Watershed services: who pays and for what?

    Energy Technology Data Exchange (ETDEWEB)

    Porras, Ina; Grieg-Gran, Maryanne

    2007-08-15

    There is increasing interest in using payments to promote sound watershed management. Schemes range from small pilot projects involving just five families to a massive Chinese project that aims to reach 15 million farmers. The expectation is that such schemes will help to resolve problems such as declining water flows, flooding and deteriorating water quality by bringing in new funding from water users, the private sector in particular, and by providing incentives for sustainable management to those closest to natural resources. A review of active and proposed schemes in developing nations shows, however, that most schemes still depend on donor or government funding, and few are driven by water users. Meanwhile, evidence of benefits remains patchy.

  13. USGS Watershed Boundary Dataset (WBD) Stewardship Plan Objectives for FY17 from The National Map - National Geospatial Data Asset (NGDA) Watershed Boundary Dataset (WBD)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — U.S. Geological Survey, Department of the Interior - The annual Watershed Boundary Dataset (WBD) stewardship plan is to maintain watershed boundary data through...

  14. Watersheds, waterfalls, on edge or node weighted graphs

    CERN Document Server

    Meyer, Fernand

    2012-01-01

    We present an algebraic approach to the watershed adapted to edge or node weighted graphs. Starting with the flooding adjunction, we introduce the flooding graphs, for which node and edge weights may be deduced one from the other. Each node weighted or edge weighted graph may be transformed in a flooding graph, showing that there is no superiority in using one or the other, both being equivalent. We then introduce pruning operators extract subgraphs of increasing steepness. For an increasing steepness, the number of never ascending paths becomes smaller and smaller. This reduces the watershed zone, where catchment basins overlap. A last pruning operator called scissor associates to each node outside the regional minima one and only one edge. The catchment basins of this new graph do not overlap and form a watershed partition. Again, with an increasing steepness, the number of distinct watershed partitions contained in a graph becomes smaller and smaller. Ultimately, for natural image, an infinite steepness le...

  15. 2005 Kansas Land Cover Patterns, Level I, Kansas River Watershed

    Data.gov (United States)

    Kansas Data Access and Support Center — The Upper Kansas River Watershed Land Cover Patterns map represents Phase 1 of a two-phase mapping initiative occurring over a three-year period as part of a...

  16. 2011 FEMA Lidar: Chemung Watershed (NY) (AOI 2)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — LiDAR data was acquired by Tuck Mapping Solutions, Inc. (TMSI) for the Chemung Watershed and broken down into two AOIs based on the level of processing performed on...

  17. Integrated Modeling for Flood Hazard Mapping Using Watershed Modeling System

    National Research Council Canada - National Science Library

    Seyedeh S. Sadrolashrafi; Thamer A. Mohamed; Ahmad R.B. Mahmud; Majid K. Kholghi; Amir Samadi

    2008-01-01

    ...) with the Watershed Modeling System (WMS) for flood modeling is developed. It also interconnects the terrain models and the GIS software, with commercial standard hydrological and hydraulic models, including HEC-1, HEC-RAS, etc...

  18. Hydrography - MO 2014 Outstanding National Resource Water Watersheds (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This feature class contains watersheds associated with Missouri's use designations for waters listed in Table D - Outstanding National Resource Waters of the Water...

  19. Baseline Contaminants Investigation of the Patoka River Watershed, Southwest Indiana

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Sediment and fish tissue samples were collected from various locations within the Patoka River watershed (PRW) as part of the U.S. Fish and Wildlife Service's...

  20. Southern Watersheds Common Reed Project, Final Report [Draft

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The Southern Watersheds Common Reed Project is an interagency effort to demonstrate effective control of the invasive wetland plant, common reed, while...

  1. Fish Creek Watershed Lake Classification; NPRA, Alaska, 2016

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This study focuses on the development of a 20 attribute lake cover classification scheme for the Fish Creek Watershed (FCW), which is located in the National...

  2. Summit to Sea Characterization of Coastal Watersheds - Puerto Rico 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This Characterization of Coastal Watershed for Puerto Rico, Culebra Island and Vieques Island, is a GIS products suite consisting of layers derived from diverse...

  3. Possible climate change evidence in ten Mexican watersheds

    Science.gov (United States)

    Mateos, Efrain; Santana, Julio-Sergio; Montero-Martínez, Martin J.; Deeb, Alejandro; Grunwaldt, Alfred

    2016-02-01

    This paper suggests possible evidence of climate change in Mexico at the watershed level, based solely on historical data. The official Mexican climate dataset was used to find the best set of stations for each watershed. Maximum and minimum temperatures and rainfall in ten watersheds are analyzed from 1970 to 2009. Maximum temperature trends show a significant increment in most of these watersheds. Furthermore, Daily Temperature Range (DTR) exhibits a positive trend (increments), thus implying an increase in temperature extremes. This study also shows that the difference between maximum and minimum monthly temperature trends is negatively correlated with monthly precipitation trends. As a result, land-use and land-cover changes could be the main drivers of climate change in the region.

  4. Walnut Creek Watershed Restoration and Water Quality Monitoring Project

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The primary objective of this project is to establish a nonpoint source monitoring program in relation to the watershed habitat restoration and agricultural...

  5. EAARL Topography--Potato Creek Watershed, Georgia, 2010

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A digital elevation model (DEM) of a portion of the Potato Creek watershed in Georgia was produced from remotely sensed, geographically referenced elevation...

  6. Geographically isolated wetlands and watershed hydrology: A modified

    Data.gov (United States)

    U.S. Environmental Protection Agency — Data for "An improved representation of geographically isolated wetlands in a watershed-scale hydrologic model". This dataset is associated with the following...

  7. Catalog of Federal Funding Sources for Watershed Protection

    Data.gov (United States)

    U.S. Environmental Protection Agency — Catalog of Federal Funding Sources for Watershed Protection Web site is a searchable database of financial assistance sources (grants, loans) available to fund a...

  8. Watershed Academy Webcast: USDA's National Water Quality Initiative

    Science.gov (United States)

    This page contains a description and documentation associated with the webcast on how USDA’s NWQI is working in priority watersheds to help farmers, ranchers and forest landowners improve water quality.

  9. EAARL Topography--Potato Creek Watershed, Georgia, 2010

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — A digital elevation model (DEM) of a portion of the Potato Creek watershed in Georgia was produced from remotely sensed, geographically referenced elevation...

  10. Storytelling to support watershed research on emerging issues

    Science.gov (United States)

    Phillip Hellman

    2016-01-01

    Projections of budget deficits by the Congressional Budget Office imply ever-increasing pressure on federal spending for all purposes, including long-term watershed research. This presentation will argue that, since federal funding is ultimately a political decision, those responsible for maintaining long-term watershed research programs should not try to provide ...

  11. GIS-ROUT: a river model for watershed planning

    OpenAIRE

    Xinhao Wang; Charlotte White-Hull; Scott Dyer; Ying Yang

    2000-01-01

    Previous studies have shown that significant environmental changes are the result of human activities such as urbanization occurring at the spatial scale of landscapes. The challenge faced by many planners today is how to understand such relationships in order to support integrated watershed planning and management. Although many mathematical models have been developed to simulate the chemical transport process in a river, few are actually used in watershed assessment and management. Recently...

  12. Vertical Collective Action: Addressing Vertical Asymmetries in Watershed Management

    OpenAIRE

    2015-01-01

    Watersheds and irrigation systems have the characteristic of connecting people vertically by water flows. The location of users along these systems defines their role in the provision and appropriation of water which adds complexity to the potential for cooperation. Verticality thus imposes a challenge to collective action. This paper presents the results of field experiments conducted in four watersheds of Colombia (South America) and Kenya (East Africa) to study the role that location plays...

  13. Segmentation of Medical Image using Clustering and Watershed Algorithms

    OpenAIRE

    M. C.J. Christ; R.M.S Parvathi

    2011-01-01

    Problem statement: Segmentation plays an important role in medical imaging. Segmentation of an image is the division or separation of the image into dissimilar regions of similar attribute. In this study we proposed a methodology that integrates clustering algorithm and marker controlled watershed segmentation algorithm for medical image segmentation. The use of the conservative watershed algorithm for medical image analysis is pervasive because of its advantages, such as always being able to...

  14. Methodology for a stormwater sensitive urban watershed design

    Science.gov (United States)

    Romnée, Ambroise; Evrard, Arnaud; Trachte, Sophie

    2015-11-01

    In urban stormwater management, decentralized systems are nowadays worldwide experimented, including stormwater best management practices. However, a watershed-scale approach, relevant for urban hydrology, is almost always neglected when designing a stormwater management plan with best management practices. As a consequence, urban designers fail to convince public authorities of the actual hydrologic effectiveness of such an approach to urban watershed stormwater management. In this paper, we develop a design oriented methodology for studying the morphology of an urban watershed in terms of sustainable stormwater management. The methodology is a five-step method, firstly based on the cartographic analysis of many stormwater relevant indicators regarding the landscape, the urban fabric and the governance. The second step focuses on the identification of many territorial stakes and their corresponding strategies of a decentralized stormwater management. Based on the indicators, the stakes and the strategies, the third step defines many spatial typologies regarding the roadway system and the urban fabric system. The fourth step determines many stormwater management scenarios to be applied to both spatial typologies systems. The fifth step is the design of decentralized stormwater management projects integrating BMPs into each spatial typology. The methodology aims to advise urban designers and engineering offices in the right location and selection of BMPs without given them a hypothetical unique solution. Since every location and every watershed is different due to local guidelines and stakeholders, this paper provide a methodology for a stormwater sensitive urban watershed design that could be reproduced everywhere. As an example, the methodology is applied as a case study to an urban watershed in Belgium, confirming that the method is applicable to any urban watershed. This paper should be helpful for engineering and design offices in urban hydrology to define a

  15. Integrated simulation of runoff and groundwater in forest wetland watersheds

    OpenAIRE

    Gen-wei CHENG; Zhong-bo YU; Li, Chang-Sheng; Huang, Yong

    2008-01-01

    Abstract: A Distributed Forest Wetland Hydrologic Model (DFWHM) was constructed and used to examine water dynamics in the different climates of three different watersheds (a cold region, a sub-tropic region, and a large-scale watershed). A phenological index was used to represent the seasonal and species changes of the tree canopy while processes of snow packing, soil freezing, and snow and ice thawing were also included in the simulation. In the cold region, the simulated fall of the gro...

  16. [MicroPerc: Fashion or reality.

    Science.gov (United States)

    Cepeda, Marcos; Amón, José H

    2017-01-01

    Miniaturization in percutaneous surgery has seen its zenith in microperc. Technological advances have enabled us to treat renal lithiasis through a 4.8 Ch. caliper percutaneous access. According to published literature, the technique is reproducible and when applied to small and medium size renal lithiasis has a high success rate keepin a low complication rate. Its main advantage is the absence of tract dilatation, diminishing the bleeding risk inherent to percutaneous access, postoperative pain and hospital stay. Nevertheless, it presents a series of technical limitations: low maneuverability and versatility, impossible extraction of significant fragments, limited vision and high intrarenal pressure. Does microperc have a place among proven techniques such as SWL, flexible ureteroscopy or minipercutaneous surgery? In our article we try to answer this question by reviewing the available literature, and review all technical features, advantages and limitations of the procedure at the same time.

  17. Environmental indicators as an integrated management instrument for watersheds

    Directory of Open Access Journals (Sweden)

    Roxane Lopes de Mello

    2013-12-01

    Full Text Available Environmental problems at the watershed level are complex and require solutions that minimize socioeconomic, environmental, and political-institutional impacts. Within this context, a crosscutting analysis of concepts related to sustainable development, sustainable agriculture, watershed structure, and the use of indicators to measure local sustainability is of paramount importance for planning development at the local level. The objective of this research was to collect information related to management practices and rural development regarding the watersheds of Ribeirão Cachoeirinha and Córrego do Meio in the municipality of São Luiz do Paraitinga, SP. The goal was to propose sustainability indicators that would support an integrated watershed management strategy and promote sustainable development. Indicators should be based on the sustainability of watershed activities, be useful tools for implementing sustainable development and serve as reference in the decision-making process. Methods involved a general characterization of the area and the community using field surveys and published sources. The criteria utilized for defining the boundaries of the area were based on the Watershed State Program developed by the Agriculture and Supply Secretariat of the State of São Paulo. The results led to the development of 83 sustainability indicators and indicated the need for the community to develop an integrated strategy to promote local sustainable development.

  18. Influence of storm magnitude and watershed size on runoff nonlinearity

    Science.gov (United States)

    Lee, Kwan Tun; Huang, Jen-Kuo

    2016-06-01

    The inherent nonlinear characteristics of the watershed runoff process related to storm magnitude and watershed size are discussed in detail in this study. The first type of nonlinearity is referred to rainfall-runoff dynamic process and the second type is with respect to a Power-law relation between peak discharge and upstream drainage area. The dynamic nonlinearity induced by storm magnitude was first demonstrated by inspecting rainfall-runoff records at three watersheds in Taiwan. Then the derivation of the watershed unit hydrograph (UH) using two linear hydrological models shows that the peak discharge and time to peak discharge that characterize the shape of UH vary event-to-event. Hence, the intention of deriving a unique and universal UH for all rainfall-runoff simulation cases is questionable. In contrast, the UHs by the other two adopted nonlinear hydrological models were responsive to rainfall intensity without relying on linear proportion principle, and are excellent in presenting dynamic nonlinearity. Based on the two-segment regression, the scaling nonlinearity between peak discharge and drainage area was investigated by analyzing the variation of Power-law exponent. The results demonstrate that the scaling nonlinearity is particularly significant for a watershed having larger area and subjecting to a small-size of storm. For three study watersheds, a large tributary that contributes relatively great drainage area or inflow is found to cause a transition break in scaling relationship and convert the scaling relationship from linearity to nonlinearity.

  19. Institutional Analysis of Watershed Manangement in Batam Island

    Directory of Open Access Journals (Sweden)

    Syahrul Donie

    2016-08-01

    Full Text Available This study aimed to look at the institutional condition of the current watershed management and institutional models (management authority which were relevant to Batam Island in the future. The data collection was conducted by interview techniques and was validated through focus group discussions. The data were described and analyzed with SCP (structure, conduct, performance method for relevant stakeholders’ data, legislation, and with KIPA (quadrant interpretative performance analysis method for data of interest and power of stakeholders. The results showed that the watershed management institutional in Batam Island was still overlapping. According to the regulations, the Management Board (BP of Batam Island was given the authority to manage and to use land and water; on the other hand the Local Government (Mayor was facilitated by BPDAS KEPRI (Watershed Management Institute of Riau Islands to also arrange an integrated watershed management. The results of discussions showed that BP Batam was an institute of having interest and power as well as key position in achieving successful watershed management. Based on this study, it was suggested that BP Batam should be given authority in watershed management in Batam Island, which keeps referring to the norms, standards, procedures, and indicators set by the central government.

  20. Watershed Planning within a Quantitative Scenario Analysis Framework.

    Science.gov (United States)

    Merriam, Eric R; Petty, J Todd; Strager, Michael P

    2016-07-24

    There is a critical need for tools and methodologies capable of managing aquatic systems within heavily impacted watersheds. Current efforts often fall short as a result of an inability to quantify and predict complex cumulative effects of current and future land use scenarios at relevant spatial scales. The goal of this manuscript is to provide methods for conducting a targeted watershed assessment that enables resource managers to produce landscape-based cumulative effects models for use within a scenario analysis management framework. Sites are first selected for inclusion within the watershed assessment by identifying sites that fall along independent gradients and combinations of known stressors. Field and laboratory techniques are then used to obtain data on the physical, chemical, and biological effects of multiple land use activities. Multiple linear regression analysis is then used to produce landscape-based cumulative effects models for predicting aquatic conditions. Lastly, methods for incorporating cumulative effects models within a scenario analysis framework for guiding management and regulatory decisions (e.g., permitting and mitigation) within actively developing watersheds are discussed and demonstrated for 2 sub-watersheds within the mountaintop mining region of central Appalachia. The watershed assessment and management approach provided herein enables resource managers to facilitate economic and development activity while protecting aquatic resources and producing opportunity for net ecological benefits through targeted remediation.

  1. Optimal allocation of watershed management cost among different water users

    Institute of Scientific and Technical Information of China (English)

    Wang Zanxin; Margaret M.Calderon

    2006-01-01

    The issue of water scarcity highlights the importance of watershed management. A sound watershed management should make all water users share the incurred cost. This study analyzes the optimal allocation of watershed management cost among different water users. As a consumable, water should be allocated to different users the amounts in which their marginal utilities (Mus) or marginal products (MPs) of water are equal. The value of Mus or MPs equals the water price that the watershed manager charges. When water is simultaneously used as consumable and non-consumable, the watershed manager produces the quantity of water in which the sum of Mus and/or MPs for the two types of uses equals the marginal cost of water production. Each water user should share the portion of watershed management cost in the percentage that his MU or MP accounts for the sum of Mus and/or MPs. Thus, the price of consumable water does not equal the marginal cost of water production even if there is no public good.

  2. Watershed Boundaries, Watershed_boundaries, Published in 2002, 1:600 (1in=50ft) scale, Buffalo County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Watershed Boundaries dataset, published at 1:600 (1in=50ft) scale, was produced all or in part from Hardcopy Maps information as of 2002. It is described as...

  3. Watershed Boundaries, Watersheds within Winnebago County, Published in 1994, 1:2400 (1in=200ft) scale, Winnebago County GIS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Watershed Boundaries dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Orthoimagery information as of 1994. It is described as...

  4. Integration of the Hydrologic Simulation Program--FORTRAN (HSPF) Watershed Water Quality Model into the Watershed Modeling System (WMS)

    National Research Council Canada - National Science Library

    Deliman, Patrick

    1999-01-01

    ...) into the Watershed Modeling System (WMS) was initiated as part of an overall goal of the Water Quality Research Program to provide water quality capabilities within the framework of a comprehensive graphical modeling environment...

  5. Chinese Policies and Practices regarding Payments for Ecological Services in Watersheds

    Institute of Scientific and Technical Information of China (English)

    Liu Guihuan; Zhang Huiyuan; Wan Jun

    2008-01-01

    Watersheds provide a variety of ecological services including soil and water conservation,carbon sequestration and biodiversity protection.However,activities in a fast-growing economy significantly impact the supply and demand of these watershed services.To mitigate these impacts,the concept of payment for environmental and ecosystem services from watersheds has emerged in global academic and policy circles.The governments and academic communities in China have increasingly described payments for ecological services from watersheds with the concept of watershed eco-compensation as it is urgent to protect watershed ecosystems.Watershed eco-compensation has proved to be one of the most economically effective means of solving environmental problems of watersheds to be adopted by the Chinese government.This paper presents an objective analysis of the Chinese market for watershed ecosystem services,including supply and demand for the services.It also summarizes Chinese policies on watershed eco-compensation,including relevant laws and regulations and fiscal policies.In addition,it presents a review of Chinese practices in watershed eco-compensation,including the analysis of an ecological construction project in Westem China,inter-provincial watershed cco-compensation practices and plans,and payment for ecological services at the provincial and small watershed levels.Finally,it summarizes the key components of the process of payment in Chinese watershed eco-compensation.This discussion forms the basis of concluding suggestions for ecosystem services compensation and ecological protection in the large scale river basin.

  6. Valuing the effects of hydropower development on watershed ecosystem services: Case studies in the Jiulong River Watershed, Fujian Province, China

    Science.gov (United States)

    Wang, Guihua; Fang, Qinhua; Zhang, Luoping; Chen, Weiqi; Chen, Zhenming; Hong, Huasheng

    2010-02-01

    Hydropower development brings many negative impacts on watershed ecosystems which are not fully integrated into current decision-making largely because in practice few accept the cost and benefit beyond market. In this paper, a framework was proposed to valuate the effects on watershed ecosystem services caused by hydropower development. Watershed ecosystem services were classified into four categories of provisioning, regulating, cultural and supporting services; then effects on watershed ecosystem services caused by hydropower development were identified to 21 indicators. Thereafter various evaluation techniques including the market value method, opportunity cost approach, project restoration method, travel cost method, and contingent valuation method were determined and the models were developed to valuate these indicators reflecting specific watershed ecosystem services. This approach was applied to three representative hydropower projects (Daguan, Xizaikou and Tiangong) of Jiulong River Watershed in southeast China. It was concluded that for hydropower development: (1) the value ratio of negative impacts to positive benefits ranges from 64.09% to 91.18%, indicating that the negative impacts of hydropower development should be critically studied during its environmental administration process; (2) the biodiversity loss and water quality degradation (together accounting for 80-94%) are the major negative impacts on watershed ecosystem services; (3) the average environmental cost per unit of electricity is up to 0.206 Yuan/kW h, which is about three quarters of its on-grid power tariff; and (4) the current water resource fee accounts for only about 4% of its negative impacts value, therefore a new compensatory method by paying for ecosystem services is necessary for sustainable hydropower development. These findings provide a clear picture of both positive and negative effects of hydropower development for decision-makers in the monetary term, and also provide a

  7. Tupamaro de Caxamarca: tonadas sobre la muerte del Inca Atahualpa contenidas en el códice Martínez Compañón (1782-85 Tupamaro de Caxamarca: Tunes about the Death of the Inca Atahualpa contained in the Codex Martínez Compañón (1782-85

    Directory of Open Access Journals (Sweden)

    Tiziana Palmiero

    2011-12-01

    Full Text Available A lo largo de la Colonia se va construyendo una memoria de la historia de los pueblos andinos que considera al Imperio incaico como su principal referente y a la figura del Inca1 como su símbolo natural. La narración de los hechos de la historia incaica, en especial aquellos relativos a la conquista española, generaron el mito de la muerte del Inca2, a la cual habrán contribuido colonizados y colonizadores. Durante el siglo XVIII serán numerosas las representaciones teatral-musicales de estos hechos. El códice Martínez Compañón (1782-85 consta de nueve tomos con alrededor de 1.500 láminas en colores que ilustran los diferentes aspectos de la vida social y natural de la zona de Trujillo, Perú. Treinta y ocho láminas, incluidas en el tomo II, se refieren directa o indirectamente a la música de tradición oral de la época, las láminas numeradas -foliación original, E. está por "Estampa"- desde la E.176 hasta la E.193 contienen un total de veinte partituras. A primera vista el título de las dos tonadas: "E.188: Allegro tonada El tupamaro, Caxamarca" y "E.191 (b: Adagio tonada el Tuppamaro de caxa-marca" sugiere que el contenido de las mismas podría tener relación con los sucesos de Cajamarca, es decir, con la captura y muerte del Inca Atahualpa3. En el mismo tomo II se encuentran además dos láminas que representan la decapitación del Inca: "Danza de la degollación del Ynga E.172; E.173.". De ser así las dos tonadas podrían ser dos fragmentos musicales únicos de las representaciones teatrales antes mencionadas4. Durante el análisis de las dos partituras encontramos que éstas tendrían relación con otras partituras del mismo códice: "E. 191, Magestuoso Cachua la Despedida de Guamachuco"; "E. 190 Allegro tonada la brugita para cantar de Guamachuco" y "E.187, Andantino Tonada El Diamante, para baylar de Chachapoyas". Se trató de analogías musicales o textuales que permitieron crear un hilo conductor con los tr

  8. Fort Cobb Reservoir Watershed, Oklahoma and Thika River Watershed, Kenya Twinning Pilot Project

    Science.gov (United States)

    Moriasi, D.; Steiner, J.; Arnold, J.; Allen, P.; Dunbar, J.; Shisanya, C.; Gathenya, J.; Nyaoro, J.; Sang, J.

    2007-12-01

    The Fort Cobb Reservoir Watershed (FCRW) (830 km2) is a watershed within the HELP Washita Basin, located in Caddo and Washita Counties, OK. It is also a benchmark watershed under USDA's Conservation Effects Assessment Project, a national project to quantify environmental effects of USDA and other conservation programs. Population in south-western Oklahoma, in which FCRW is located, is sparse and decreasing. Agricultural focuses on commodity production (beef, wheat, and row crops) with high costs and low margins. Surface and groundwater resources supply public, domestic, and irrigation water. Fort Cobb Reservoir and contributing stream segments are listed on the Oklahoma 303(d) list as not meeting water quality standards based on sedimentation, trophic level of the lake associated with phosphorus loads, and nitrogen in some stream segments in some seasons. Preliminary results from a rapid geomorphic assessment results indicated that unstable stream channels dominate the stream networks and make a significant but unknown contribution to suspended-sediment loadings. Impairment of the lake for municipal water supply, recreation, and fish and wildlife are important factors in local economies. The Thika River Watershed (TRW) (867 km2) is located in central Kenya. Population in TRW is high and increasing, which has led to a poor land-population ratio with population densities ranging from 250 people/km2 to over 500 people/km2. The poor land-population ratio has resulted in land sub-division, fragmentation, over- cultivation, overgrazing, and deforestation which have serious implications on soil erosion, which poses a threat to both agricultural production and downstream reservoirs. Agricultural focuses mainly on subsistence and some cash crops (dairy cattle, corn, beans, coffee, floriculture and pineapple) farming. Surface and groundwater resources supply domestic, public, and hydroelectric power generation water. Thika River supplies 80% of the water for the city of

  9. Experimental Watershed Study Designs: A Tool for Advancing Process Understanding and Management of Mixed-Land-Use Watersheds

    Science.gov (United States)

    Hubbart, J. A.; Kellner, R. E.; Zeiger, S. J.

    2016-12-01

    Advancements in watershed management are both a major challenge, and urgent need of this century. The experimental watershed study (EWS) approach provides critical baseline and long-term information that can improve decision-making, and reduce misallocation of mitigation investments. Historically, the EWS approach was used in wildland watersheds to quantitatively characterize basic landscape alterations (e.g. forest harvest, road building). However, in recent years, EWS is being repurposed in contemporary multiple-land-use watersheds comprising a mosaic of land use practices such as urbanizing centers, industry, agriculture, and rural development. The EWS method provides scalable and transferrable results that address the uncertainties of development, while providing a scientific basis for total maximum daily load (TMDL) targets in increasing numbers of Clean Water Act 303(d) listed waters. Collaborative adaptive management (CAM) programs, designed to consider the needs of many stakeholders, can also benefit from EWS-generated information, which can be used for best decision making, and serve as a guidance tool throughout the CAM program duration. Of similar importance, long-term EWS monitoring programs create a model system to show stakeholders how investing in rigorous scientific research initiatives improves decision-making, thereby increasing management efficiencies through more focused investments. The evolution from classic wildland EWS designs to contemporary EWS designs in multiple-land-use watersheds will be presented while illustrating how such an approach can encourage innovation, cooperation, and trust among watershed stakeholders working to reach the common goal of improving and sustaining hydrologic regimes and water quality.

  10. Northern Watershed Change, Modeled Permafrost Temperatures in the Yukon River Watershed

    Science.gov (United States)

    Bryan, R.; Hinzman, L. D.

    2009-12-01

    Changes in the terrestrial hydrologic cycle in northern watersheds can be seen through permafrost warming. Furthermore, vegetation shifts occur with climate changes coupled with permafrost degradation. Permafrost warming is resultant from warming air temperatures and the collection of buffers between the atmosphere and the cryosphere: the active layer, snow, and vegetation. Our modeling methods combine a meteorological model with a permafrost temperature model in 1 km2 resolution in the 847,642 km2 Yukon River Watershed. The MicroMet model is a quasi-physically based model developed in 2006 by Liston & Elder to spatially interpolate irregularly spaced point meteorological data using known temperature-elevation, wind-topography, humidity-cloudiness, and radiation-cloud-topography relationships. We call on 1997-2007 data from 104 Integrated Surface Data meteorological stations and 100 grid points in a 5 best models ensemble A1B 2090-2100 projection. The Temperature at the Top of the Permafrost (TTOP) model is a numerical model for estimating the thermal state of permafrost. This model is attributed to Smith & Riseborough, 1996. TTOP relates more readily available near surface temperatures to temperatures at the depth of seasonal variation using user-defined landcover n-factors (to relate air temperature to soil surface temperature) and soil thermal conductivities (to simulate the propagation of heat through the active layer). TTOP simulates warm top of the permafrost temperatures for high soil thermal conductivity, land cover with high n-factor, and a high number of thawing degree-days/ year. Here we compare the present and future thermal stability of permafrost in the Yukon River Watershed.

  11. Integrating operational watershed and coastal models for the Iberian Coast: Watershed model implementation - A first approach

    Science.gov (United States)

    Brito, David; Campuzano, F. J.; Sobrinho, J.; Fernandes, R.; Neves, R.

    2015-12-01

    River discharges and loads are essential inputs to coastal seas, and thus for coastal seas modelling, and their properties are the result of all activities and policies carried inland. For these reasons main rivers were object of intense monitoring programs having been generated some important amount of historical data. Due to the decline in the Portuguese hydrometric network and in order to quantify and forecast surface water streamflow and nutrients to coastal areas, the MOHID Land model was applied to the Western Iberia Region with a 2 km horizontal resolution and to the Iberian Peninsula with 10 km horizontal resolution. The domains were populated with land use and soil properties and forced with existing meteorological models. This approach also permits to understand how the flows and loads are generated and to forecast their values which are of utmost importance to perform coastal ocean and estuarine forecasts. The final purpose of the implementation is to obtain fresh water quantity and quality that could be used to support management decisions in the watershed, reservoirs and also to estuaries and coastal areas. A process oriented model as MOHID Land is essential to perform this type of simulations, as the model is independent of the number of river catchments. In this work, the Mohid Land model equations and parameterisations were described and an innovative methodology for watershed modelling is presented and validated for a large international river, the Tagus River, and the largest national river of Portugal, the Mondego River. Precipitation, streamflow and nutrients modelling results for these two rivers were compared with observations near their coastal outlet in order to evaluate the model capacity to represent the main watershed trends. Finally, an annual budget of fresh water and nutrient transported by the main twenty five rivers discharging in the Portuguese coast is presented.

  12. Modeling the Dynamic Water Resource Needs of California's Coastal Watersheds

    Science.gov (United States)

    Alford, C.

    2009-12-01

    Many watersheds face formidable water supply challenges when it comes to managing water availability to meet diverse water supply and ecosystem management objectives. California’s central coast watersheds are no exception, and both the scarcity of water resources during drier water years and mandates to establish minimum instream flows for salmon habitat have prompted interests in reassessing water management strategies for several of these watersheds. Conventional supply-oriented hydrologic models, however, are not adequate to fully investigate and describe the reciprocal implications of surface water demands for human use and the maintenance of instream flows for salmon habitat that vary both temporally and spatially within a watershed. In an effort to address this issue I developed a coastal watershed management model based on the San Gregorio watershed utilizing the Water Evaluation and Planning (WEAP) system, which permits demand-side prioritization at a time step interval and spatial resolution that captures functional supply and demand relationships. Physiographic input data such as soil type, land cover, elevation, habitat, and water demand sites were extrapolated at a sub-basin level in a GIS. Time-series climate data were collected and processed utilizing the Berkeley Water Center Data Cube at daily time steps for the period 1952 through September 2009. Recent synoptic flow measurements taken at seven tributary sites during the 2009 water year, water depth measured by pressure transducers at six sites within the watershed from September 2005 through September 2009, and daily gauge records from temporary gauges installed in 1981 were used to assess the hydrologic patterns of sub-basins and supplement historic USGS gauge flow records. Empirical functions were used to describe evapotranspiration, surface runoff, sub-surface runoff, and deep percolation. Initial model simulations carried out under both dry and wet water year scenarios were able to capture

  13. Open Source GIS based integrated watershed management

    Science.gov (United States)

    Byrne, J. M.; Lindsay, J.; Berg, A. A.

    2013-12-01

    Optimal land and water management to address future and current resource stresses and allocation challenges requires the development of state-of-the-art geomatics and hydrological modelling tools. Future hydrological modelling tools should be of high resolution, process based with real-time capability to assess changing resource issues critical to short, medium and long-term enviromental management. The objective here is to merge two renowned, well published resource modeling programs to create an source toolbox for integrated land and water management applications. This work will facilitate a much increased efficiency in land and water resource security, management and planning. Following an 'open-source' philosophy, the tools will be computer platform independent with source code freely available, maximizing knowledge transfer and the global value of the proposed research. The envisioned set of water resource management tools will be housed within 'Whitebox Geospatial Analysis Tools'. Whitebox, is an open-source geographical information system (GIS) developed by Dr. John Lindsay at the University of Guelph. The emphasis of the Whitebox project has been to develop a user-friendly interface for advanced spatial analysis in environmental applications. The plugin architecture of the software is ideal for the tight-integration of spatially distributed models and spatial analysis algorithms such as those contained within the GENESYS suite. Open-source development extends knowledge and technology transfer to a broad range of end-users and builds Canadian capability to address complex resource management problems with better tools and expertise for managers in Canada and around the world. GENESYS (Generate Earth Systems Science input) is an innovative, efficient, high-resolution hydro- and agro-meteorological model for complex terrain watersheds developed under the direction of Dr. James Byrne. GENESYS is an outstanding research and applications tool to address

  14. Efeitos de dois programas de exercício na endurance de tronco, controlo lombo-pélvico, perceção de dor lombar e fadiga, funcionalidade e qualidade de vida: Pilates Clínico vs Exercícios segundo McGill

    OpenAIRE

    Tavares, Maria

    2013-01-01

    Introdução: A lombalgia crónica assume uma elevada prevalência e graves repercussões a nível socioeconómico, sendo inúmeras as abordagens terapêuticas para o seu tratamento e prevenção. Existindo forte evidência da eficácia dos exercícios terapêuticos no seu tratamento, importa saber quais os mais efetivos. Objectivos: Comparar a efetividade de dois programas de exercício terapêutico na endurance do tronco, no controlo lombo-pélvico, na perceção de dor lombar e fadiga, na funci...

  15. Streamflow simulation methods for ungauged and poorly gauged watersheds

    Science.gov (United States)

    Loukas, A.; Vasiliades, L.

    2014-07-01

    Rainfall-runoff modelling procedures for ungauged and poorly gauged watersheds are developed in this study. A well-established hydrological model, the University of British Columbia (UBC) watershed model, is selected and applied in five different river basins located in Canada, Cyprus, and Pakistan. Catchments from cold, temperate, continental, and semiarid climate zones are included to demonstrate the procedures developed. Two methodologies for streamflow modelling are proposed and analysed. The first method uses the UBC watershed model with a universal set of parameters for water allocation and flow routing, and precipitation gradients estimated from the available annual precipitation data as well as from regional information on the distribution of orographic precipitation. This method is proposed for watersheds without streamflow gauge data and limited meteorological station data. The second hybrid method proposes the coupling of UBC watershed model with artificial neural networks (ANNs) and is intended for use in poorly gauged watersheds which have limited streamflow measurements. The two proposed methods have been applied to five mountainous watersheds with largely varying climatic, physiographic, and hydrological characteristics. The evaluation of the applied methods is based on the combination of graphical results, statistical evaluation metrics, and normalized goodness-of-fit statistics. The results show that the first method satisfactorily simulates the observed hydrograph assuming that the basins are ungauged. When limited streamflow measurements are available, the coupling of ANNs with the regional, non-calibrated UBC flow model components is considered a successful alternative method to the conventional calibration of a hydrological model based on the evaluation criteria employed for streamflow modelling and flood frequency estimation.

  16. Panama Canal Watershed Experiment- Agua Salud Project

    Science.gov (United States)

    Stallard, Robert F.; Ogden, Fred L.; Elsenbeer, Helmut; Hall, Jefferson S.

    2010-01-01

    The Agua Salud Project utilizes the Panama Canal’s (Canal) central role in world commerce to focus global attention on the ecosystem services provided by tropical forests. The Canal was one of the great engineering projects in the world. Completed in 1914, after almost a decade of concerted effort, its 80 km length greatly shortened the voyage between the Atlantic and Pacific Oceans. An entire class of ships, the Panamax, has been constructed to maximize the amount of cargo that can be carried in a Canal passage. In today’s parlance, the Canal is a “green” operation, powered largely by water (Table 1). The locks, three pairs on each end with a net lift of 27 meters, are gravity fed. For each ton of cargo that is transferred from ocean to ocean, about 13 tons of water (m3) are used. Lake Gatún forms much of the waterway in the Canal transect. Hydroelectricity is generated at the Gatún dam, whenever there is surplus water, and at Madden Dam (completed in 1936) when water is transferred from Lake Alhajuela to Lake Gatún. The Canal watershed is the source of drinking water for Panama City and Colon City, at either end of the Canal, and numerous towns in between.

  17. Morphometric analysis of sub-watershed in parts of Western Ghats, South India using ASTER DEM

    Directory of Open Access Journals (Sweden)

    Evangelin Ramani Sujatha

    2015-05-01

    Full Text Available Morphometric analysis is a key to understand the hydrological process and hence is a prerequisite for the assessment of hydrological characteristics of surface water basin. Morphometric analysis to determine the drainage characteristics of Palar sub-watershed, a part of Shanmukha watershed in the Amaravati sub-catchment is done using Advanced Space-borne Thermal Emission and Reflection Global Digital Elevation Model (ASTER GDEM data, and is supplemented with topographical maps in geographical information systems platform. This study uses ASTER GDEM data to extract morphometric features of a mountain stream at micro-watershed level. The sub-watershed is divided into six micro-watersheds. The sub-watershed includes a sixth-order stream. Lower stream orders, in particular first-order streams, dominate the sub-watershed. Development of stream segments is controlled by slope and local relief. Drainage pattern of the sub-watershed and micro-watersheds is dendritic in general. The mean bifurcation ratio of the sub-watershed is 3.69 but its variation between the various stream orders suggests structural control in the development of stream network. The shape factors reveal the elongation of the sub-watershed and micro-watersheds.The relief ratio reveals the high discharge capability of the sub-watershed and meagre groundwater potential. This study is a useful tool for planning strategies in control of soil erosion and soil conservation.

  18. La Economía Política y las Motivaciones de Participación Socio-Política de Jóvenes Chilenos: Una Interpretación de los Hallazgos de Martínez, Silva y Hernández (2010 Political Economy and Youth Motivations of Socio-Political Participation: An Interpretation of the Findings From Martínez, Silva and Hernández (2010

    Directory of Open Access Journals (Sweden)

    Eduardo Silva

    2010-11-01

    Full Text Available El artículo de Martínez, Silva y Hernández (en este número argumenta que los jóvenes chilenos se han distanciado de la participación sociopolítica convencional, porque perciben una falta de validación de las personas en el sistema sociopolítico actual, debido a la vulneración de derechos, inequidad social y falta de voz y poder de los ciudadanos. Esto choca con sus valores de fraternidad y desarrollo justo y digno de las personas. En este ensayo se examina si ese sentir tiene fundamentos reales en la estructura y lógica del modelo político-económico que ellos critican. Se aborda el tema desde el marco analítico de la economía política, que parte del supuesto de que las estructuras económicas y políticas determinan sujetos sociales, sus intereses y su poder relativo. Se encontró una asociación directa entre la lógica del modelo político-económico y los sentimientos de exclusión que expresaron los entrevistados.The article by Martínez, Silva, and Hernández (in this issue argues that Chilean youth have disengaged from participation in conventional socio-political institutions because they believe that the sociopolitical system does not validate the persons, violates their rights, is highly inequitable, and excludes them from having a real voice in public decision-making. This perception clashes with their values of fraternity and a just and dignified development for everyone. This essay examines if these beliefs have a real basis in the structure and logic of the economic and political model they criticize. This issue is analyzed from a political economy perspective, built on the assumption that economic and political structures determine social subjects, their interests, and their relative power. A direct association was found between the logic of Chile's political-economic model and the feelings of exclusion that the interviewees expressed.

  19. Perceções parentais sobre estado nutricional, imagem corporal e saúde em crianças com idade escolar Las percepciones de los padres sobre el estado nutricional, la imagen corporal y la salud en niños en edad escolar Parental perceptions of nutritional status, body image and health in school-aged children

    Directory of Open Access Journals (Sweden)

    Lúcia Macedo

    2012-03-01

    Full Text Available Objetivo: avaliar as perceções parentais sobre estado nutricional, imagem corporal e saúde nas crianças que frequentam o 1º ciclo do ensino básico. Material e métodos: foi avaliado o IMC e a perceção dos pais sobre a imagem corporal e saúde dos seus filhos, por questionários enviados a todos os pais das crianças matriculadas nas escolas pertencentes aos Agrupamentos Vertical de Anes de Cernache e de Vila d’Este, do Concelho de Vila Nova de Gaia, no início do ano letivo 2008/2009 (n=936 e incluídas 532 crianças e pais que aderiram (57% da população amostral. As perceções parentais foram comparadas com o percentil de IMC da criança para avaliar eventuais discrepâncias. Trata-se de um estudo descritivo-correlacional. Resultados: verificou-se que 49.9% dos pais apresentaram uma distorção da perceção relativamente ao estado nutricional e 37.9% relativamente à imagem corporal. Constatou-se que apenas a idade da criança tinha relação com a perceção parental sobre a imagem corporal. Os pais referiram ter “boa” perceção de saúde. Conclusão: estes resultados são congruentes com outros na área e alertam os profissionais para a necessidade de uma intervenção mais efetiva na educação para a saúde para prevenir e detetar precocemente casos de crianças em risco de se tornarem obesas.Objetivo: evaluar las percepciones de los padres sobre el estado nutricional, la imagen corporal, la salud de los niños que asisten al 1 º ciclo de la educación básica. Métodos: se evaluaron el IMC y la percepción de los padres sobre la imagen corporal y la salud de sus hijos por medio de cuestionarios, enviados a todos los padres de los niños matriculados en las escuelas pertenecientes a los “Agrupamentos Vertical” de Anes de Cernache y de Vila d’Este, del municipio de Vila Nova de Gaia, al inicio del curso 2008/2009 (n = 936 e incluyó a 532 niños y padres que a él adhirieron (57% de la población de muestreo. Las

  20. Lawrence Livermore National Laboratory Surface Water Protection: A Watershed Approach

    Energy Technology Data Exchange (ETDEWEB)

    Coty, J

    2009-03-16

    This surface water protection plan (plan) provides an overview of the management efforts implemented at Lawrence Livermore National Laboratory (LLNL) that support a watershed approach to protect surface water. This plan fulfills a requirement in the Department of Energy (DOE) Order 450.1A to demonstrate a watershed approach for surface water protection that protects the environment and public health. This plan describes the use of a watershed approach within which the Laboratory's current surface water management and protections efforts have been structured and coordinated. With more than 800 million acres of land in the U.S. under federal management and stewardship, a unified approach across agencies provides enhanced resource protection and cost-effectiveness. The DOE adopted, along with other federal agencies, the Unified Federal Policy for a Watershed Approach to Federal Land and Resource Management (UFP) with a goal to protect water quality and aquatic ecosystems on federal lands. This policy intends to prevent and/or reduce water pollution from federal activities while fostering a cost-effective watershed approach to federal land and resource management. The UFP also intends to enhance the implementation of existing laws (e.g., the Clean Water Act [CWA] and National Environmental Policy Act [NEPA]) and regulations. In addition, this provides an opportunity for the federal government to serve as a model for water quality stewardship using a watershed approach for federal land and resource activities that potentially impact surface water and its uses. As a federal land manager, the Laboratory is responsible for a small but important part of those 800 million acres of land. Diverse land uses are required to support the Laboratory's mission and provide an appropriate work environment for its staff. The Laboratory comprises two sites: its main site in Livermore, California, and the Experimental Test Site (Site 300), near Tracy, California. The main site

  1. Kootenai River Focus Watershed Coordination, 2002-2003 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Munson, Bob; Munson, Vicki (Kootenai River Network, Libby, MT); Rogers, Rox (US Fish and Wildlife Service, Libby, MT)

    2003-10-01

    The Kootenai River Network Inc. (KRN) was incorporated in Montana in early 1995 with a mission ''to involve stakeholders in the protection and restoration of the chemical, physical and biological integrity of the Kootenai River Basin waters''. The KRN operates with funding from donations, membership dues, private, state and federal grants, and with funding through the Bonneville Power Administration (BPA) for a Focus Watershed Coordinator Program. The Focus Watershed Program is administered to KRN as of October 2001, through a Memorandum of Understanding. Katie Randall resigned her position as Watershed Coordinator in late January 2003 and Munson Consulting was contracted to fill that position through the BPA contract period ending May 30, 2003. To improve communications with in the Kootenai River watershed, the board and staff engaged watershed stakeholders in a full day KRN watershed conference on May 15 and 16 in Bonners Ferry, Idaho. This Annual General Meeting was a tremendous success with over 75 participants representing over 40 citizen groups, tribes and state/provincial/federal agencies from throughout northern Montana and Idaho as well as British Columbia and Alberta. Membership in the KRN increased during the course of the BPA 02/03 grant period. The board of directors grew in numbers during this same time frame and an Advisory Council was formed to assist in transboundary efforts while developing two reorganized KRN committees (Habitat/Restoration/Monitoring (HRM) and Communication/Education/Outreach (CEO)). These committees will serve pivotal roles in communications, outreach, and education about watershed issues, as well as habitat restoration work being accomplished throughout the entire watershed. During this BPA grant period, the KRN has capitalized on the transboundary interest in the Kootenai River watershed. Jim and Laura Duncan of Kimberley, British Columbia, have been instrumental volunteers who have acted as Canadian

  2. Influence of storm magnitude and watershed size on runoff nonlinearity

    Indian Academy of Sciences (India)

    Kwan Tun Lee; Jen-Kuo Huang

    2016-06-01

    The inherent nonlinear characteristics of the watershed runoff process related to storm magnitude andwatershed size are discussed in detail in this study. The first type of nonlinearity is referred to rainfallrunoffdynamic process and the second type is with respect to a Power-law relation between peakdischarge and upstream drainage area. The dynamic nonlinearity induced by storm magnitude was firstdemonstrated by inspecting rainfall-runoff records at three watersheds in Taiwan. Then the derivation ofthe watershed unit hydrograph (UH) using two linear hydrological models shows that the peak dischargeand time to peak discharge that characterize the shape of UH vary event-to-event. Hence, the intentionof deriving a unique and universal UH for all rainfall-runoff simulation cases is questionable. In contrast,the UHs by the other two adopted nonlinear hydrological models were responsive to rainfall intensitywithout relying on linear proportion principle, and are excellent in presenting dynamic nonlinearity.Based on the two-segment regression, the scaling nonlinearity between peak discharge and drainagearea was investigated by analyzing the variation of Power-law exponent. The results demonstrate thatthe scaling nonlinearity is particularly significant for a watershed having larger area and subjecting toa small-size of storm. For three study watersheds, a large tributary that contributes relatively greatdrainage area or inflow is found to cause a transition break in scaling relationship and convert the scalingrelationship from linearity to nonlinearity.

  3. [Zoning of water environment protection in Three Gorges Reservoir watershed].

    Science.gov (United States)

    Wang, Li-jing; Xi, Chun-yan; Zheng, Bing-hui

    2011-04-01

    Regional differences in socio-economic development, land use, vegetation cover, and relative location of water body within a watershed bring about significant effects on the water environment quality of the watershed. Concerning about the core demands of water body protection, it is important and necessary to carry out zoning water environment protection for whole watershed. With a view to the spatial differences in regional characteristics of eco-environment and water body pressure-respond features, this paper studied the zoning of water environment protection in the Three Gorges Reservoir watershed, based on the methods of ecological factors overlay and ecological sensitivity analysis. The factors considered included hydrothermal conditions, terrain topography, administrative unit, and ecological sensitivity. Three regions in the watershed were zoned, i. e., 1) red region, namely strictly protected region, with an area of 2924 km2 and occupying 5.1% of the total; 2) yellow region, namely first class protection region, with an area of 10477 km2 and occupying 18.4%; and 3) blue region, namely second class protection region, with an area of 43599 km2 and occupying 76.5%. The key environmental problems of the regions were identified, and the strategies for the regions' development and water environment protection were proposed.

  4. Hydrological modeling of the Jiaoyi watershed (China) using HSPF model.

    Science.gov (United States)

    Yan, Chang-An; Zhang, Wanchang; Zhang, Zhijie

    2014-01-01

    A watershed hydrological model, hydrological simulation program-Fortran (HSPF), was applied to simulate the spatial and temporal variation of hydrological processes in the Jiaoyi watershed of Huaihe River Basin, the heaviest shortage of water resources and polluted area in China. The model was calibrated using the years 2001-2004 and validated with data from 2005 to 2006. Calibration and validation results showed that the model generally simulated mean monthly and daily runoff precisely due to the close matching hydrographs between simulated and observed runoff, as well as the excellent evaluation indicators such as Nash-Sutcliffe efficiency (NSE), coefficient of correlation (R (2)), and the relative error (RE). The similar simulation results between calibration and validation period showed that all the calibrated parameters had a certain representation in Jiaoyi watershed. Additionally, the simulation in rainy months was more accurate than the drought months. Another result in this paper was that HSPF was also capable of estimating the water balance components reasonably and realistically in space through the whole watershed. The calibrated model can be used to explore the effects of climate change scenarios and various watershed management practices on the water resources and water environment in the basin.

  5. Hydrological Modeling of the Jiaoyi Watershed (China Using HSPF Model

    Directory of Open Access Journals (Sweden)

    Chang-An Yan

    2014-01-01

    Full Text Available A watershed hydrological model, hydrological simulation program-Fortran (HSPF, was applied to simulate the spatial and temporal variation of hydrological processes in the Jiaoyi watershed of Huaihe River Basin, the heaviest shortage of water resources and polluted area in China. The model was calibrated using the years 2001–2004 and validated with data from 2005 to 2006. Calibration and validation results showed that the model generally simulated mean monthly and daily runoff precisely due to the close matching hydrographs between simulated and observed runoff, as well as the excellent evaluation indicators such as Nash-Sutcliffe efficiency (NSE, coefficient of correlation (R2, and the relative error (RE. The similar simulation results between calibration and validation period showed that all the calibrated parameters had a certain representation in Jiaoyi watershed. Additionally, the simulation in rainy months was more accurate than the drought months. Another result in this paper was that HSPF was also capable of estimating the water balance components reasonably and realistically in space through the whole watershed. The calibrated model can be used to explore the effects of climate change scenarios and various watershed management practices on the water resources and water environment in the basin.

  6. Potential stream density in Mid-Atlantic US watersheds.

    Directory of Open Access Journals (Sweden)

    Andrew J Elmore

    Full Text Available Stream network density exerts a strong influence on ecohydrologic processes in watersheds, yet existing stream maps fail to capture most headwater streams and therefore underestimate stream density. Furthermore, discrepancies between mapped and actual stream length vary between watersheds, confounding efforts to understand the impacts of land use on stream ecosystems. Here we report on research that predicts stream presence from coupled field observations of headwater stream channels and terrain variables that were calculated both locally and as an average across the watershed upstream of any location on the landscape. Our approach used maximum entropy modeling (MaxEnt, a robust method commonly implemented to model species distributions that requires information only on the presence of the entity of interest. In validation, the method correctly predicts the presence of 86% of all 10-m stream segments and errors are low (<1% for catchments larger than 10 ha. We apply this model to the entire Potomac River watershed (37,800 km(2 and several adjacent watersheds to map stream density and compare our results with the National Hydrography Dataset (NHD. We find that NHD underestimates stream density by up to 250%, with errors being greatest in the densely urbanized cities of Washington, DC and Baltimore, MD and in regions where the NHD has never been updated from its original, coarse-grain mapping. This work is the most ambitious attempt yet to map stream networks over a large region and will have lasting implications for modeling and conservation efforts.

  7. Hydrology of C-3 watershed, Seney National Wildlife Refuge, Michigan

    Science.gov (United States)

    Sweat, Michael J.

    2001-01-01

    Proposed changes to watershed management practices near C-3 Pool at Seney National Wildlife Refuge will affect surface-water flow patterns, ground-water levels, and possibly local plant communities. Data were collected between fall 1998 and spring 2000 to document existing conditions and to assess potential changes in hydrology that might occur as a consequence of modifications to water management practices in C-3 watershed.Minimum and maximum measured inflows and outflows for the study period are presented in light of proposed management changes to C-3 watershed. Streamflows ranged from 0 to 8.61 cubic meters per second. Low or zero flow was generally measured in late summer and early fall, and highest flows were measured during spring runoff and winter rain events. Ground-water levels varied by about a half meter, with levels closest to or above the land surface during spring runoff into the early summer, and with levels generally below land surface during late fall into early winter.A series of optional management practices that could conserve and restore habitat of the C-3 watershed is described. Modifications to the existing system of a drainage ditch and control structures are examined, as are the possibilities of reconnecting streams to their historical channels and the construction of additional or larger control structures to further manage the distribution of water in the watershed. The options considered could reduce erosion, restore presettlement streamflow conditions, and modify the ground-water gradient.

  8. Evolving Human Alteration of the Carbon Cycle: the Watershed Continuum

    Science.gov (United States)

    Kaushal, S.; Delaney Newcomb, K.; Newcomer Johnson, T.; Pennino, M. J.; Smith, R. M.; Beaulieu, J. J.; Belt, K.; Grese, M.; Blomquist, J.; Duan, S.; Findlay, S.; Likens, G.; Mayer, P. M.; Murthy, S.; Utz, R.; Yepsen, M.

    2014-12-01

    Watersheds experiencing land development are constantly evolving, and their biogeochemical signatures are expected to evolve across both space and time in drainage waters. We investigate how land development influences spatial and temporal evolution of the carbon cycle from small streams to major rivers in the Eastern U.S. Along the watershed continuum, we show that there is spatial evolution in: (1) the amount, chemical form, and bioavailability of carbon; (2) carbon retention/release at the reach scale; and (3) ecosystem metabolism of carbon from headwaters to coastal waters. Over shorter time scales, the interaction between land use and climate variability alters magnitude and frequency of carbon "pulses" in watersheds. Amounts and forms of carbon pulses in agricultural and urban watersheds respond similarly to climate variability due to headwater alteration and loss of ecosystem services to buffer runoff and temperature changes. Over longer time scales, land use change has altered organic carbon concentrations in tidal waters of Chesapeake Bay, and there have been increased bicarbonate alkalinity concentrations in rivers throughout the Eastern U.S. due to human activities. In summary, our analyses indicates that the form and reactivity of carbon have evolved over space and time along the watershed continuum with major implications for downstream ecosystem metabolism, biological oxygen demand, carbon dioxide production, and river alkalinization.

  9. Morphometric analysis of Andhale watershed, Taluka Mulshi, District Pune, India

    Science.gov (United States)

    Umrikar, Bhavana N.

    2017-09-01

    The morphometric analysis coupled with remote sensing and geographical information system techniques evaluates various valuable parameters for the watershed development plan of drought-prone Andhale watershed of Pune district, Maharashtra. The upper part of the watershed shows parallel-sub parallel and rectilinear drainage patterns indicative of structural control, whereas the lower part shows dendritic drainage pattern revealing the homogeneity in texture and lack of structural control. The elongated shape of this basin is indicated by values of form factor, circulatory ratio and elongation ratio. The mean bifurcation ratio is observed to be 4.65 indicating the watershed is less affected by structural disturbances, and drainage pattern is not much influenced by geological structures. The hypsometric integral obtained for Andhale watershed is 0.316 indicating maturity stage of the basin. The longitudinal profile depicts steep gradient at the origin but it gradually flattens out as the river erodes its base level. The high values of drainage density, stream frequency, infiltration number and drainage texture indicate that the study area is underlain by impermeable rocks responsible for high runoff. Thus, the results of this analysis would be useful in determining the effect of catchment characteristics such as size, shape, slope of the catchment on runoff vis-a-vis the scope for water harvesting.

  10. La Antropología y la Pedagogía Presentes en la Vida y Obra del Científico Holguinero: Carlos Antonio Cordova Martínez

    Directory of Open Access Journals (Sweden)

    Jandy Alí Sánchez

    2005-01-01

    Full Text Available Se hace referencia al estudio realizado sobre la vida y obra del científico holguinero: Carlos Antonio Córdova Martínez, quien ha dedicado la mayor parte de su vida a la Antropología y Pedagogía, destacándose las relacionadas con: El protestantismo en Cuba; La conciencia social religiosa en Cuba; La iglesia católica en la sociedad colonial cubana; Las creencias heterodoxas; El espiritismo; Religión y creencias religiosas, tradiciones, costumbres, leyendas, la aplicación de la historia social a la Pedagogía, entre otras. Se señalan los eventos en los cuales ha participado como ponente o tribunal y los cursos impartidos, reflejándose en el trabajo, los documentos publicados o no por tipo de portadores, haciéndosele una descripción a los mismos. Se reflejan además, las condecoraciones recibidas que lo han hecho merecedor del prestigio que ha alcanzado.

  11. Ricardo Jiménez y Joaquín Mantecón, Escribir bien es de justicia, Editorial Aranzadi Thomson Reuters, Cizur Menor, 2012, 176 págs.

    Directory of Open Access Journals (Sweden)

    Miriam Seghiri

    2013-03-01

    Full Text Available El libro que se recensiona no es un tratado sobre el lenguaje jurídico español. Es un libro de técnicas de expresión escrita con ejercicios, fruto de la experiencia y con una orientación práctica. Esta obra pretende ayudar a mejorar la expresión escrita tanto de los estudiantes de Ciencias Jurídicas, como de los juristas que ya desempeñan su profesión. Ricardo Jiménez es licenciado en Filología hispánica por la Universidad de Barcelona y Máster en análisis estilístico de la lengua por la Universidad Nacional de Educación a Distancia. Es profesor asociado de la facultad de Ciencias Jurídicas y políticas y de la facultad de Humanidades de la Universitat Internacional de Catalunya. Además, es colaborador externo de GRADUN (Instituto Cultura y Sociedad, Universidad de Navarra. Joaquín Mantecón es catedrático de Derecho Eclesiástico del Estado en la Universidad de Cantabria y miembro de la Comisión Asesora de Libertad Religiosa del Ministerio de Justicia.

  12. Aviadores en el desierto. Aventura y viaje del capitán Rafael Martínez Esteve en el Ḥamad jordano-iraquí (1926

    Directory of Open Access Journals (Sweden)

    Córdoba, Joaquín Mª

    2005-04-01

    Full Text Available A comienzos del siglo XX, cuando el redescubrimiento de Oriente se había trocado en su colonización tras la I Guerra Mundial, la poesía del viaje y el reencuentro con gentes y paisajes parecían ya imposibles. De hecho, la literatura «clásica» del viaje a Oriente estaba ya más que acabada. Sin embargo, un accidente de la historia de la aviación española haría que el capitán Rafael Martínez Esteve, integrante de la patrulla que emprendió el viaje Madrid-Manila, viviera una trágica aventura en el desierto jordano- iraquí. Fruto de esa experiencia sería un libro que es, al mismo tiempo que emocionante relato, descripción poética del desierto y la vida de los beduinos, sarcástica mirada a los poderes coloniales, y un amable epígono en la historia de la literatura española de viajes a Oriente.…

  13. Application of PCARES in locating the soil erosion Hotspots in the Manupali River Watershed

    OpenAIRE

    Paningbatan, E.

    2004-01-01

    In this presentation the author covers: GIS mapping of land attributes, dynamic modeling of soil erosion at watershed scale using PCARES (Predicting Catchment Runoff and Soil Erosion for Sustainability), identifying soil erosion "hotspots" in the Manupali River watershed

  14. ANALISIS OF STREAM DISCHARGE OF MICRO WATERSHED AND ITS UTILIZATION POTENTIAL

    Directory of Open Access Journals (Sweden)

    Hunggul Y.S.H. Nugroho

    2015-05-01

    Full Text Available Trough understanding of hydrology characteristic of watershed, water resource can be  managed for wider goals such as economic, social, and sustainainable utilization.  In fact, current watershed managements have more been focused  on erosion, sedimentation, drought, and flood control and less attention paid on fulfilling the need of upper watershed inhabitat on water yield.  The research of Micro Watershed was conducted in three Micro Watersheds as representation of priority watersheds in South Sulawesi  namely Mamasa, Saddang, and Jeneberang. The aim was to find out stream discharge pattern of those three Micro Watershed related to precipitation, landuse and its utilization potential for local community.  The results showed that the more extensive forest cover, the better water yield and the higher its utilization potential . Concerning to precipitation and water yield, the three micro watersheds have the potentially to be source of water for irigation and household consumption.

  15. Integrating topography, hydrology and rock structure in weathering rate models of spring watersheds

    NARCIS (Netherlands)

    Pacheco, F.A.L.; Weijden, C.H. van der

    2012-01-01

    Weathering rate models designed for watersheds combine chemical data of discharging waters with morphologic and hydrologic parameters of the catchments. At the spring watershed scale, evaluation of morphologic parameters is subjective due to difficulties in conceiving the catchment geometry. Besides

  16. Comparison of radar and gauge precipitation data in watershed models across varying spatial and temporal scales

    Science.gov (United States)

    Precipitation is a key control on watershed hydrologic modelling output, with errors in rainfall propagating through subsequent stages of water quantity and quality analysis. Most watershed models incorporate precipitation data from rain gauges; higher-resolution data sources are...

  17. Toolkit of Available EPA Green Infrastructure Modeling Software: Watershed Management Optimization Support Tool (WMOST)

    Science.gov (United States)

    Watershed Management Optimization Support Tool (WMOST) is a software application designed tofacilitate integrated water resources management across wet and dry climate regions. It allows waterresources managers and planners to screen a wide range of practices across their watersh...

  18. Comparison of radar and gauge precipitation data in watershed models across varying spatial and temporal scales

    Science.gov (United States)

    Precipitation is a key control on watershed hydrologic modelling output, with errors in rainfall propagating through subsequent stages of water quantity and quality analysis. Most watershed models incorporate precipitation data from rain gauges; higher-resolution data sources are...

  19. Toolkit of Available EPA Green Infrastructure Modeling Software: Watershed Management Optimization Support Tool (WMOST)

    Science.gov (United States)

    Watershed Management Optimization Support Tool (WMOST) is a software application designed tofacilitate integrated water resources management across wet and dry climate regions. It allows waterresources managers and planners to screen a wide range of practices across their watersh...

  20. Watershed scale influence of pesticide reduction practices on pesticides and fishes within channelized agricultural headwater streams

    Science.gov (United States)

    Implementation of pesticide reduction practices to reduce pesticide usage within agricultural watersheds has the potential to reduce pesticide concentrations within agricultural streams. The watershed scale influence of pesticide reduction practices on pesticides and the biota within agricultural he...

  1. Optimization Tool For Allocation Of Watershed Management Practices For Sediment And Nutrient Control

    Science.gov (United States)

    Implementation of conservation programs are perceived as being crucial for restoring and protecting waters and watersheds from nonpoint source pollution. Success of these programs depends to a great extent on planning tools that can assist the watershed management process. Herein...

  2. Characterizing response of total suspended solids and total phosphorus loading to weather and watershed characteristics for rainfall and snowmelt events in agricultural watersheds

    Science.gov (United States)

    Danz, Mari E.; Corsi, Steven; Brooks, Wesley R.; Bannerman, Roger T.

    2013-01-01

    Understanding the response of total suspended solids (TSS) and total phosphorus (TP) to influential weather and watershed variables is critical in the development of sediment and nutrient reduction plans. In this study, rainfall and snowmelt event loadings of TSS and TP were analyzed for eight agricultural watersheds in Wisconsin, with areas ranging from 14 to 110 km2 and having four to twelve years of data available. The data showed that a small number of rainfall and snowmelt runoff events accounted for the majority of total event loading. The largest 10% of the loading events for each watershed accounted for 73–97% of the total TSS load and 64–88% of the total TP load. More than half of the total annual TSS load was transported during a single event for each watershed at least one of the monitored years. Rainfall and snowmelt events were both influential contributors of TSS and TP loading. TSS loading contributions were greater from rainfall events at five watersheds, from snowmelt events at two watersheds, and nearly equal at one watershed. The TP loading contributions were greater from rainfall events at three watersheds, from snowmelt events at two watersheds and nearly equal at three watersheds. Stepwise multivariate regression models for TSS and TP event loadings were developed separately for rainfall and snowmelt runoff events for each individual watershed and for all watersheds combined by using a suite of precipitation, melt, temperature, seasonality, and watershed characteristics as predictors. All individual models and the combined model for rainfall events resulted in two common predictors as most influential for TSS and TP. These included rainfall depth and the antecedent baseflow. Using these two predictors alone resulted in an R2 greater than 0.7 in all but three individual models and 0.61 or greater for all individual models. The combined model yielded an R2 of 0.66 for TSS and 0.59 for TP. Neither the individual nor the combined models were

  3. Comparison of Hydrologic Dynamics in Forested and Agricultural Sub-watersheds of a Large Mixed-use Prairie Watershed

    Science.gov (United States)

    Petzold, H.; Ali, G.

    2013-12-01

    The natural history of the Prairies includes the large-scale human modification of landscape biology and hydrology from first settlement to present. Forested land has been and continues to be lost and runoff is increasingly artificially drained in this intensively managed region. The impact of such modifications on hydrological dynamics has yet to be understood in such a way that measurable landscape alterations (i.e., area of forest loss, hydraulic capacity of artificial surface drains) can be linked to quantifiable alterations in event storm hydrographs or hydrological regimes. Here we focused on a large mixed-used watershed to compare the hydrological dynamics of forested sub-watersheds to those of neighboring deforested agricultural sub-watersheds within a similar geologic and pedologic setting. The chosen study site, the Catfish Creek watershed (CCW), drains a 600 km2 area located approximately 90 km north-east of Winnipeg (Manitoba, Canada) and has been extensively impacted by human activities including the continued clearing of forested land for cultivation. It is characterized as a low-relief, agro-forested watershed (~45% forest, ~40% crops, ~10% swamp, ~5% other). Surface runoff is managed in part by a network of artificial drains in both the forested and cultivated portions of this watershed. The lower CCW is naturally-vegetated by parkland forest and swamp. The eastern edge of the upper watershed is also forested and of greater relative relief; while to the west the landscape is dominated by intensive, large-scale agricultural operations on a near level landscape. Detailed topographic information was collected in 1 m LiDAR survey of the area. Through the spring of 2013, CCW was instrumented with thirteen water level recorders (15-minute frequency) and five weather stations (1-minute frequency) to monitor the precipitation-runoff dynamics from spring thaw to winter freeze-up. Water level gauging stations, 12 located in-stream and 1 located in swampland

  4. Importance of plan curvature in watershed modeling

    Science.gov (United States)

    Boll, J.; Ribail, J.; Zhao, M.

    2016-12-01

    A hillslope's hydrologic response to precipitation events is largely controlled by the topographic features of a given hillslope, specifically the profile and plan curvature. Many models simplify hillslope topography and ignore the curvature properties, and some use alternate measures such as a topographic index or the hillslope width function. Models that ignore curvature properties may be calibrated to produce the statistically acceptable integrated response of runoff at a watershed outlet, but incorporating these properties is necessary to model accurately hydrologic processes such as surface flow, erosion, subsurface lateral flow, location of runoff generation and drainage response. In this study, we evaluated the sensitivity of rainfall-runoff modelling to profile and plan curvature in two models. In the first model, the Water Erosion Prediction Project (WEPP) model, hillslope uses a representative width to the hillslope by dividing the drainage area by the average surface channel length. Profile curvature is preserved with a limited spatial resolution due to the number of overland flow elements. In the second model, the distributed Soil Moisture Routing (SMR) model, the geographic information system uses the D8 algorithm to capture profile and plan curvature. Sensitivity to topographic features was tested for three profile curvatures (convex, concave, straight) combined with three plan curvatures (diverging, converging, uniform) resulting in a total of nine hillslopes. Each hillslope was subjected to different rainfall events to detect threshold behavior for when topographic features cannot be ignored. Our findings indicate that concave and convex plan curvature need to be included when subsurface flow processes are the dominant flow process for surface flow runoff generation. We present thresholds for acceptable cases when profile and plan curvature can be simplified in larger spatial hydrologic units.

  5. Grays River Watershed and Biological Assessment, 2006 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    May, Christopher; Geist, David [Pacific Northwest National Laboratory

    2007-04-01

    The Grays River Watershed and Biological Assessment was funded to address degradation and loss of spawning habitat for chum salmon (Onchorhynchus keta) and fall Chinook salmon (Onchoryhnchus tshawytscha). In 1999, the National Marine Fisheries Service listed lower Columbia River chum salmon as a threatened Evolutionarily Significant Unit (ESU) under the Endangered Species Act of 1973 (ESA). The Grays River watershed is one of two remaining significant chum salmon spawning locations in this ESU. Runs of Grays River chum and Chinook salmon have declined significantly during the past century, largely because of damage to spawning habitat associated with timber harvest and agriculture in the watershed. In addition, approximately 20-25% of the then-remaining chum salmon spawning habitat was lost during a 1999 channel avulsion that destroyed an important artificial spawning channel operated by the Washington Department of Fish and Wildlife (WDFW). Although the lack of stable, high-quality spawning habitat is considered the primary physical limitation on Grays River chum salmon production today, few data are available to guide watershed management and channel restoration activities. The objectives of the Grays River Watershed and Biological Assessment project were to (1) perform a comprehensive watershed and biological analysis, including hydrologic, geomorphic, and ecological assessments; (2) develop a prioritized list of actions that protect and restore critical chum and Chinook salmon spawning habitat in the Grays River based on comprehensive geomorphic, hydrologic, and stream channel assessments; and (3) gain a better understanding of chum and Chinook salmon habitat requirements and survival within the lower Columbia River and the Grays River. The watershed-based approach to river ecosystem restoration relies on a conceptual framework that describes general relationships between natural landscape characteristics, watershed-scale habitat-forming processes, aquatic

  6. Grays River Watershed and Biological Assessment Final Report 2006.

    Energy Technology Data Exchange (ETDEWEB)

    May, Christopher W.; McGrath, Kathleen E.; Geist, David R. [Pacific Northwest National Laboratory; Abbe, Timothy; Barton, Chase [Herrera Environmental Consultants, Inc.

    2008-02-04

    The Grays River Watershed and Biological Assessment was funded to address degradation and loss of spawning habitat for chum salmon (Onchorhynchus keta) and fall Chinook salmon (Onchoryhnchus tshawytscha). In 1999, the National Marine Fisheries Service listed lower Columbia River chum salmon as a threatened Evolutionarily Significant Unit (ESU) under the Endangered Species Act of 1973 (ESA). The Grays River watershed is one of two remaining significant chum salmon spawning locations in this ESU. Runs of Grays River chum and Chinook salmon have declined significantly during the past century, largely because of damage to spawning habitat associated with timber harvest and agriculture in the watershed. In addition, approximately 20-25% of the then-remaining chum salmon spawning habitat was lost during a 1999 channel avulsion that destroyed an important artificial spawning channel operated by the Washington Department of Fish and Wildlife (WDFW). Although the lack of stable, high-quality spawning habitat is considered the primary physical limitation on Grays River chum salmon production today, few data are available to guide watershed management and channel restoration activities. The objectives of the Grays River Watershed and Biological Assessment project were to (1) perform a comprehensive watershed and biological analysis, including hydrologic, geomorphic, and ecological assessments; (2) develop a prioritized list of actions that protect and restore critical chum and Chinook salmon spawning habitat in the Grays River based on comprehensive geomorphic, hydrologic, and stream channel assessments; and (3) gain a better understanding of chum and Chinook salmon habitat requirements and survival within the lower Columbia River and the Grays River. The watershed-based approach to river ecosystem restoration relies on a conceptual framework that describes general relationships between natural landscape characteristics, watershed-scale habitat-forming processes, aquatic

  7. Land degradation and integrated watershed management in India

    Directory of Open Access Journals (Sweden)

    Suraj Bhan

    2013-06-01

    Government of India has launched various centre-sector, state-sector and foreign aided schemes for prevention of land degradation, reclamation of special problem areas for ensuring productivity of the land, preservation of land resources and improvement of ecology and environment. These schemes are being implemented on watershed basis in rainfed areas. Soil conservation measures and reclamation of degraded lands are decided considering the land capability and land uses. The efforts made so far resulted in enhancement of agricultural production and productivity of lands, increase in employment generation, improving the environment of the areas and socio-economic upgradation of the people. Integrated watershed management approach has been adopted as a key national strategy for sustainable development of rural areas. This has been proved by conducting monitoring and impact evaluation studies of the integrated watershed projects by external agencies.

  8. Watershed land use effects on lake water quality in Denmark

    DEFF Research Database (Denmark)

    Nielsen, Anders; Trolle, Dennis; Søndergaard, Martin

    2012-01-01

    in the watershed. When examining the effect of different near-freshwater land zones in contrast to the entire watershed, relationships generally improved with size of zone (25, 50, 100, 200, and 400 m from the edge of lake and streams) but were by far strongest using the entire watershed. The proportion......Mitigating nutrient losses from anthropogenic nonpoint sources is today of particular importance for improving the water quality of numerous freshwater lakes worldwide. Several empirical relationships between land use and in-lake water quality variables have been developed, but they are often weak......, which can in part be attributed to lack of detailed information about land use activities or point sources. We examined a comprehensive data set comprising land use data, point-source information, and in-lake water quality for 414 Danish lakes. By excluding point-source-influenced lakes (n = 210...

  9. A Cosmic Watershed: the WVF Void Detection Technique

    CERN Document Server

    Platen, Erwin; Jones, Bernard J T

    2007-01-01

    On megaparsec scales the Universe is permeated by an intricate filigree of clusters, filaments, sheets and voids, the Cosmic Web. For the understanding of its dynamical and hierarchical history it is crucial to identify objectively its complex morphological components. One of the most characteristic aspects is that of the dominant underdense Voids, the product of a hierarchical process driven by the collapse of minor voids in addition to the merging of large ones. In this study we present an objective void finder technique which involves a minimum of assumptions about the scale, structure and shape of voids. Our void finding method, the Watershed Void Finder (WVF), is based upon the Watershed Transform, a well-known technique for the segmentation of images. Importantly, the technique has the potential to trace the existing manifestations of a void hierarchy. The basic watershed transform is augmented by a variety of correction procedures to remove spurious structure resulting from sampling noise. This study c...

  10. Best Management Practices in the CEAP Goodwater Creek Watershed: What, Where, Why, and How Much?

    Science.gov (United States)

    Continuation of conservation funding may depend upon demonstration that past funded projects have contributed to improvement of water quality or reduction of pollutant loadings from agricultural sources. In the Goodwater Creek watershed, a 7,250 ha sub-watershed of the Mark Twain Lake watershed in N...

  11. LAND USE AND WATERSHED HEALTH IN THE UNITED STATES: AN EMPIRICAL ASSESSMENT

    OpenAIRE

    2004-01-01

    This nation-scale, watershed-level analysis focuses on the major trends and the spatial pattern of land use and the impact on watershed health. We estimate a simultaneous equation system to analyze the impact of land use on aquatic health in watersheds across the United States.

  12. The development and use of best practices in forest watersheds using GIS and simulation models

    Science.gov (United States)

    Steven G. McNulty; Ge Sun

    1998-01-01

    Forest watersheds provide timber and water, wildlife and fisheries habitat, and recreational opportunities. However, not an entire watershed is equally suited for each activity. Steeper slopes may be better left forested and used for wildlife habitat, while more gentle slopes of the watershed could be used for timber production. Logging steep slopes can lead to soil...

  13. A review of theoretical frameworks applicable for designing agricultural watershed restoration projects

    Science.gov (United States)

    Agricultural watershed restoration is the process of assisting the recovery of ecosystem structure and/or function within watersheds that have been degraded and damaged by agriculture. Unfortunately, agricultural watershed restoration is the rare exception within the Midwestern United States despit...

  14. Physiography, geology, and land cover of four watersheds in Eastern Puerto Rico

    Science.gov (United States)

    S.F. Murphy; R.F. Stallard; M.C. Larsen; W.A. Gould

    2012-01-01

    Four watersheds with differing geology and land cover in eastern Puerto Rico have been studied on a long-term basis by the U.S. Geological Survey to evaluate water, energy, and biogeochemical budgets. These watersheds are typical of tropical, island-arc settings found in many parts of the world. Two watersheds are located on coarse-grained granitic rocks that weather...

  15. Watershed Management Optimization Support Tool (WMOST) v2: User Manual and Case Studies

    Science.gov (United States)

    The Watershed Management Optimization Support Tool (WMOST) is a decision support tool that evaluates the relative cost-effectiveness of management practices at the local or watershed scale. WMOST models the environmental effects and costs of management decisions in a watershed c...

  16. Interdisciplinary Watershed Studies Provide Science-Society Links

    Science.gov (United States)

    Chambers, R. M.; Hancock, G. S.; Swaddle, J. P.; Hicks, R. L.; Roberts, J. T.

    2005-12-01

    Environmental issues typically occur at the intersection of traditional disciplines such as biology, geology, economics, public policy, and sociology, but many undergraduate students possess neither the tools nor the required interdisciplinary skills to effectively work together to address these complex issues. Our REU program--Interdisciplinary Watershed Studies at the College of William and Mary--with its common watershed theme, improves our students' independence as scientists, increases environmental science literacy across disciplines, and contributes to the educational development of undergraduates as environmental spokespersons. The cohort of students work with W&M faculty mentors on aquatic and associated upland habitats under increasing pressures from urbanization, posing questions integrated across disciplines to address relevant management issues identified by local government agencies and NGOs. Investigations of current hydrogeologic and ecological status in watersheds are completed by analyzing riparian corridor impacts associated with channel incision, stormwater management effectiveness, spatial variation in water quality, lake-wide budgets for water, sediment and nutrients, and population/community structure in aquatic and terrestrial portions of the watershed. Because the status of any watershed system is the result of historical changes in land use, sociologic and economic surveys of residents' perception of development, environmental protection and water and property rights are used to determine the current direction and strength of population and market forcing functions. Students work on each other's projects and develop an understanding of research approaches among fields. In addition to presenting their work at scientific conferences, many students give presentations at local meetings and agency workshops to enhance science-society links. Watershed analysis provides a comprehensive approach to environmental instruction that strengthens the

  17. Mapping technological and biophysical capacities of watersheds to regulate floods

    Science.gov (United States)

    Mogollon, Beatriz; Villamagna, Amy M.; Frimpong, Emmanuel A.; Angermeier, Paul

    2016-01-01

    Flood regulation is a widely valued and studied service provided by watersheds. Flood regulation benefits people directly by decreasing the socio-economic costs of flooding and indirectly by its positive impacts on cultural (e.g., fishing) and provisioning (e.g., water supply) ecosystem services. Like other regulating ecosystem services (e.g., pollination, water purification), flood regulation is often enhanced or replaced by technology, but the relative efficacy of natural versus technological features in controlling floods has scarcely been examined. In an effort to assess flood regulation capacity for selected urban watersheds in the southeastern United States, we: (1) used long-term flood records to assess relative influence of technological and biophysical indicators on flood magnitude and duration, (2) compared the widely used runoff curve number (RCN) approach for assessing the biophysical capacity to regulate floods to an alternative approach that acknowledges land cover and soil properties separately, and (3) mapped technological and biophysical flood regulation capacities based on indicator importance-values derived for flood magnitude and duration. We found that watersheds with high biophysical (via the alternative approach) and technological capacities lengthened the duration and lowered the peak of floods. We found the RCN approach yielded results opposite that expected, possibly because it confounds soil and land cover processes, particularly in urban landscapes, while our alternative approach coherently separates these processes. Mapping biophysical (via the alternative approach) and technological capacities revealed great differences among watersheds. Our study improves on previous mapping of flood regulation by (1) incorporating technological capacity, (2) providing high spatial resolution (i.e., 10-m pixel) maps of watershed capacities, and (3) deriving importance-values for selected landscape indicators. By accounting for technology that enhances

  18. Hydrologic response to stormwater control measures in urban watersheds

    Science.gov (United States)

    Bell, Colin D.; McMillan, Sara K.; Clinton, Sandra M.; Jefferson, Anne J.

    2016-10-01

    Stormwater control measures (SCMs) are designed to mitigate deleterious effects of urbanization on river networks, but our ability to predict the cumulative effect of multiple SCMs at watershed scales is limited. The most widely used metric to quantify impacts of urban development, total imperviousness (TI), does not contain information about the extent of stormwater control. We analyzed the discharge records of 16 urban watersheds in Charlotte, NC spanning a range of TI (4.1-54%) and area mitigated with SCMs (1.3-89%). We then tested multiple watershed metrics that quantify the degree of urban impact and SCM mitigation to determine which best predicted hydrologic response across sites. At the event time scale, linear models showed TI to be the best predictor of both peak unit discharge and rainfall-runoff ratios across a range of storm sizes. TI was also a strong driver of both a watershed's capacity to buffer small (e.g., 1-10 mm) rain events, and the relationship between peak discharge and precipitation once that buffering capacity is exceeded. Metrics containing information about SCMs did not appear as primary predictors of event hydrologic response, suggesting that the level of SCM mitigation in many urban watersheds is insufficient to influence hydrologic response. Over annual timescales, impervious surfaces unmitigated by SCMs and tree coverage were best correlated with streamflow flashiness and water yield, respectively. The shift in controls from the event scale to the annual scale has important implications for water resource management, suggesting that overall limitation of watershed imperviousness rather than partial mitigation by SCMs may be necessary to alleviate the hydrologic impacts of urbanization.

  19. Hydrologic calibration of paired watersheds using a MOSUM approach

    Directory of Open Access Journals (Sweden)

    H. Ssegane

    2015-01-01

    Full Text Available Paired watershed studies have historically been used to quantify hydrologic effects of land use and management practices by concurrently monitoring two neighboring watersheds (a control and a treatment during the calibration (pre-treatment and post-treatment periods. This study characterizes seasonal water table and flow response to rainfall during the calibration period and tests a change detection technique of moving sums of recursive residuals (MOSUM to select calibration periods for each control-treatment watershed pair when the regression coefficients for daily water table elevation (WTE were most stable to reduce regression model uncertainty. The control and treatment watersheds included 1–3 year intensively managed loblolly pine (Pinus taeda L. with natural understory, same age loblolly pine intercropped with switchgrass (Panicum virgatum, 14–15 year thinned loblolly pine with natural understory (control, and switchgrass only. Although monitoring during the calibration period spanned 2009 to 2012, silvicultural operational practices that occurred during this period such as harvesting of existing stand and site preparation for pine and switchgrass establishment may have acted as external factors, potentially shifting hydrologic calibration relationships between control and treatment watersheds. Results indicated that MOSUM was able to detect significant changes in regression parameters for WTE due to silvicultural operations. This approach also minimized uncertainty of calibration relationships which could otherwise mask marginal treatment effects. All calibration relationships developed using this MOSUM method were quantifiable, strong, and consistent with Nash–Sutcliffe Efficiency (NSE greater than 0.97 for WTE and NSE greater than 0.92 for daily flow, indicating its applicability for choosing calibration periods of paired watershed studies.

  20. Watershed management in South Asia: A synoptic review

    Science.gov (United States)

    Ratna Reddy, V.; Saharawat, Yashpal Singh; George, Biju

    2017-08-01

    Watershed management (WSM) is the most widely adopted technology in developed as well as developing countries due to its suitability across climatic conditions. Watershed technology is suitable to protect and enhance soil fertility, which is deteriorating at an alarming rate with agricultural intensification in high as well as low rainfall regions. Of late, WSM is considered as an effective poverty alleviation intervention in the rain fed regions in countries like India. This paper aims at providing a basic watershed policy and implementation framework based on a critical review of experiences of WSM initiatives across South Asia. The purpose is to provide cross learnings within South Asia and other developing countries (especially Africa) that are embarking on WSM in recent years. Countries in the region accord differential policy priority and are at different levels of institutional arrangements for implementing WSM programmes. The implementation of watershed interventions is neither scientific nor comprehensive in all the countries limiting the effectiveness (impacts). Implementation of the programmes for enhancing the livelihoods of the communities need to strengthen both technical and institutional aspects. While countries like India and Nepal are yet to strengthen the technical aspects in terms of integrating hydrogeology and biophysical aspects into watershed design, others need to look at these aspects as they move towards strengthening the watershed institutions. Another important challenge in all the countries is regarding the distribution of benefits. Due to the existing property rights in land and water resources coupled with the agrarian structure and uneven distribution and geometry of aquifers access to sub-surface water resources is unevenly distributed across households. Though most of the countries are moving towards incorporating livelihoods components in order to ensure benefits to all sections of the community, not much is done in terms of

  1. Statistical approach for the estimation of watershed scale nitrate export: a case study from Melen watershed of Turkey

    Directory of Open Access Journals (Sweden)

    Akiner Muhammed Ernur

    2016-06-01

    Full Text Available Nutrient pollution such as nitrate (NO3− can cause water quality degradation in rivers used as a source of drinking water. This situation raises the question of how the nutrients have moved depending on many factors such as land use and anthropogenic sources. Researchers developed several nutrient export coefficient models depending on the aforementioned factors. To this purpose, statistical data including a number of factors such as historical water quality and land use data for the Melen Watershed were used. Nitrate export coefficients are estimates of the total load or mass of nitrate (NO3− exported from a watershed standardized to unit area and unit time (e.g. kg/km2/day. In this study, nitrate export coefficients for the Melen Watershed were determined using the model that covers the Frequentist and Bayesian approaches. River retention coefficient was determined and introduced into the model as an important variable.

  2. Supplement Analysis for the Watershed Management Program EIS - John Day Watershed Restoration Program

    Energy Technology Data Exchange (ETDEWEB)

    N/A

    2004-08-04

    The Bonneville Power Administration (BPA) is proposing to fund the John Day Watershed Restoration Program, which includes projects to improve watershed conditions, resulting in improved fish and wildlife habitat. The project was planned and coordinated by the Confederated Tribes of the Warm Springs through the John Day Basin Office in Prairie City, Oregon. A variety of activities will be implemented, described below. The project will involve the installation of four permanent lay flat diversions (structures) to replace temporary diversions. Two structures would be constructed in Beech Creek, one in Little Beech Creek and one in the John Day River. The structures will replace temporary pushup dams, which were constructed annually of various materials. Installation of the permanent diversion structures eliminates the stream-disturbing activities associated with annual installation of temporary structures. They also will enable fish passage in all flow conditions, an improvement over the temporary structures which can obstruct fish passage under some conditions. Five scour chains will be installed in six sites within the John Day River. The chains will be 3 feet long and consist of 1/4 inch chain. They will be buried within the streambed to monitor the movement of material in the streambed. Other activities that will be implemented include: Installation of off-site water systems in areas where fencing and revegetation projects are implemented, in order to restrict livestock access to waterways; construction of facilities to return irrigation flows to the Johns Day River, including the installation of pipe to replace failing drains or return ditches; installation of pumps to replace temporary diversions; and removal of junipers from approximately 500 acres per year by hand felling.

  3. Natalia Álvarez Méndez, Ana Abello Verano y Sergio Fernández Martínez (coords.), Territorios de la imaginación. Poéticas ficcionales de lo insólito en España y México, Universidad de León, León, 2016. ISBN: 978-84-9773-760-9.

    OpenAIRE

    Gutiérrez Campelo, María

    2016-01-01

    Obra ressenyada: Natalia ÁLVAREZ MÉNDEZ, Ana ABELLO VERANO y Sergio FERNÁNDEZ MARTÍNEZ (coords.), Territorios de la imaginación. Poéticas ficcionales de lo insólito en España y México. León: Universidad de León, 2016.

  4. The Challenging Topics and Future Directions of the Research in Limnology and Watershed Sciences

    Institute of Scientific and Technical Information of China (English)

    LengShuying; YangGuishan; LiuZhengwen; WuRuijin; SongChangqing

    2003-01-01

    Based on reviewing the problems in limnology and watershed sciences in meeting the national demands and the development of theories and methodology, this paper proposed some challeng-ing topics to the sciences, covering the process of lake evolution and the quantitative analysis of hu-man impacts, in-lake nutrient cycling an biogeo-chemical process, the process and mechanisms of material flow in lake-watershed system, digital watershed and the modeling of the surface pro-cess of lake-watershed, and ecosystem health and scientific management of lake- watershed.

  5. Environmental Sensitive Areas (ESAs) changes in the Canyoles river watershed in Eastern Spain since the European Common Agriculture Policies (CAP) implementation

    Science.gov (United States)

    Ángel González Peñaloza, Félix; Cerdà, Artemi

    2014-05-01

    The Enviromental Sensitive Areas (ESAs) approach to study the Land Degradation is a methodology developed by professor Costas Kosmas et al., (1999) to map environmental sensitive areas and then the impact of Land Degradation and desertification on Mediterranean Type Ecosystems (Salvati et al., 2013). This methodology has been applied mainly to the Mediterranean Belt (Lavado Contador et al., 2009), but other authors adapted the methodology to other climatic regions (Izzo et al., 2013). The ESAs methodology allows mapping changes in the distribution of the sensitive areas to Desertification as a consequence of biophysical or human chances. In the Mediterranean countries of Europe, especially Spain, suffered a dramatic change due to the application of the European Common Agricultural Policies (CAP) after 1992. The objective of the CAP was to implemented policies to improve the environmental conditions of agricultural land. This target is especially relevant in Mediterranean areas of Spain, mainly the South and the East of the country. An Environmental Sensitive Area (ESAs) model (Kosmas et al., 2009) was implemented using Geographical Information System (GIS) tools, to identify, assess, monitor and map the levels of sensitivity to land degradation in the Canyoles river watershed, which is a representative landscape of the Mediterranean belt in Eastern Spain The results show that it was found that after the implementation of CAP, the most sensitive areas have expanded. This increase in degraded areas is driven by the expansion of commercial and chemically managed crops that increased the soil erosion (Cerdà et al., 2009) and that few soil conservation strategies were applied (Giménez Morera et al., 2010). Another factor that triggered Desertification processes is the increase in the recurrencesof forest fires as a consequence of land abandonment (Cerdà and Lasanta, 2005; Cerdà and Doerr, 2007). This contributed to an increase of scrubland. Our research show an

  6. Sub-watershed prioritization based on sediment yield using game theory

    Science.gov (United States)

    Adhami, Maryam; Sadeghi, Seyed Hamidreza

    2016-10-01

    The proper placement of soil and water conservation measures cannot be designated due to lack of appropriate technical prioritization of different areas of a watershed. Therefore, quantifying soil erosion hazard and spatial prioritization of sub-watersheds would aid in better watershed management planning. Although, many approaches have been applied to prioritize sub-watersheds, but still the efficient techniques like game theory have not been practically applied to prioritize sub-watersheds. The present study therefore has used the game theory to prioritize sub-watersheds in Gorganroud and Qareh Sou watersheds in Golestan Province, northern Iran. Towards this goal, 38 independent factors were classified in seven components using Principal Component Analysis (PCA) method with one representative variable in each component. The Condorcet method used for prioritization of effective variables indicated that the percent of forestry lands (52 scores) and discharge with 10 years of return period (32 scores) were respectively the most and the least effective variables on sediment yield. The Fallback bargaining and the Borda Scoring algorithms were also selected to prioritize study sub-watersheds based on weighted grades of total score for each variable. Accordingly, the aforesaid algorithms classified sub-watersheds in three categories. Comparison of results similarly introduced Galikesh, Qazaqli, Gonbad, Siyah Ab and Tamar as first ranked sub-watersheds with the worth condition, Tangrah and Naharkhoran as second priority and eventually Pole Ordougah as sub-watershed with the lowest priority.

  7. Hydrosedimentological modeling of watershed in southeast Brazil, using SWAT

    Directory of Open Access Journals (Sweden)

    Maria Lúcia Calijuri

    2010-08-01

    Full Text Available The quantitative evaluation of soil loss due to erosion, of water loss and of load sediments that reach water bodies is fundamental to the environmental planning of a watershed, contributing to the process of decision for best options for soil tillage and water quality maintenance. Estimates of these data have been accomplished throughout the world using empiric or conceptual models. Besides being economically viable in scenarios development, environmental models may contribute to the location of critical areas, leading to emergency contention operations caused by erosive processes. Among these models, we highlight the SWAT (Soil and Water Assessment Tool which was applied in São Bartolomeu watershed, located in the Zona da Mata, Minas Gerais state, southeastern Brazil, to identify areas of greater sensitivity to erosion considering the soil type and land use. To validate the model, 10 experimental plots were installed in the dominant crops of the watershed between 2006 and 2008, for monitoring the runoff and soil losses under natural rainfall. Field results and simulations showed the SWAT efficiency for sediment yield and soil losses estimations, as they are influenced by factors such as soil moisture, rainfall intensity, soil type and land use (dominated by Oxisols, Ultisols, Inceptisols and Entisols. These losses can be reduced significantly by improving crops management of. A simulation scenario replacing pastures cover by Eucalyptus was introduced, which significantly reduced soil loss in many parts of the watershed.

  8. Exact and approximate computations of watersheds on triangulated terrains

    DEFF Research Database (Denmark)

    Tsirogiannis, Konstantinos; de Berg, Mark

    2011-01-01

    computations and the computation of an intermediate structure called the strip map. • Using our exact algorithm as a point of reference, we evaluate the quality of several existing heuristics for computing watersheds. We also investigate hybrid methods, which use heuristics in a first phase of the algorithm...

  9. Spatial Decision Assistance of Watershed Sedimentation (SDAS: Development and Application

    Directory of Open Access Journals (Sweden)

    Poerbandono

    2014-04-01

    Full Text Available This paper discusses the development and application of a spatial tool for erosion modeling named Spatial Decision Assistance of Watershed Sedimentation (SDAS. SDAS computes export (yield of sediment from watershed as product of erosion rate and sediment delivery ratio (SDR. The erosion rate is calculated for each raster grid according to a digital elevation model, soil, rain fall depth, and land cover data using the Universal Soil Loss Equation. SDR calculation is carried out for each spatial unit. A spatial unit is the smallest sub-watershed considered in the model and generated according to the TauDEM algorithm. The size of one spatial unit is assigned by the user as the minimum number of raster grids. SDR is inversely proportional to sediment resident time and controlled by rainfall, slope, soil, and land cover. Application of SDAS is demonstrated in this paper by simulating the spatial distribution of the annual sediment yield across the Citarum watershed in the northwest of Java, Indonesia. SDAS calibration was carried out based on sediment discharge observations from the upper catchment. We considered factors for hillslope flow depth and for actual and effective rainfall duration to fit the computed sediment yield to the observed sediment discharge. The computed sediment yield agreed with the observation data with a 7% mean relative accuracy.

  10. Variation in Soil Enzyme Activities in a Temperate Agroforestry Watershed

    Science.gov (United States)

    Integration of agroforestry and grass buffers into row crop watersheds improves overall environmental quality, including soil quality. The objective of this study was to examine management and landscape effects on soil carbon, soil nitrogen, microbial diversity, enzyme activity, and DNA concentrati...

  11. Modeling subsurface contaminant reactions and transport at the watershed scale

    Energy Technology Data Exchange (ETDEWEB)

    Gwo, J.P.; Jardine, P.M.; D`Azevedo, E.F. [Oak Ridge National Lab., TN (United States); Wilson, G.V. [Desert Research Inst., Las Vegas, NV (United States). Water Resources Center

    1997-12-01

    The objectives of this research are: (1) to numerically examine the multiscale effects of physical and chemical mass transfer processes on watershed scale, variably saturated subsurface contaminant transport, and (2) to conduct numerical simulations on watershed scale reactive solute transport and evaluate their implications to uncertainty characterization and cost benefit analysis. Concurrent physical and chemical nonequilibrium caused by inter aggregate gradients of pressure head and solute concentration and intra-aggregate geochemical and microbiological processes, respectively, may arise at various scales and flowpaths. To this date, experimental investigations of these complex processes at watershed scale remain a challenge and numerical studies are often needed for guidance of water resources management and decision making. This research integrates the knowledge bases developed during previous experimental and numerical investigations at a proposed waste disposal site at the Oak Ridge National Laboratory to study the concurrent effects of physical and chemical nonequilibrium. Comparison of numerical results with field data indicates that: (1) multiregion, preferential flow and solute transport exist under partially saturated condition and can be confirmed theoretically, and that (2) mass transfer between pore regions is an important process influencing contaminant movement in the subsurface. Simulations of watershed scale, multi species reactive solute transport suggest that dominance of geochemistry and hydrodynamics may occur simultaneously at different locales and influence the movement of one species relative to another. Execution times on the simulations of the reactive solute transport model also indicate that the model is ready to assist the selection of important parameters for site characterization.

  12. Pataha Creek Model Watershed : 1998 Habitat Conservation Projects.

    Energy Technology Data Exchange (ETDEWEB)

    Bartels, Duane G.

    1999-12-01

    The projects outlined in detail on the attached project reports are a few of the many projects implemented in the Pataha Creek Model Watershed since it was selected as a model in 1993. 1998 was a year where a focused effort was made to work on the upland conservation practices to reduce the sedimentation into Pataha Creek.

  13. Priority River Metrics for Residents of an Urbanized Arid Watershed

    Science.gov (United States)

    What indicators to use is a persistent question in river and stream assessment and management. We employ qualitative research techniques to identify features of rivers and streams important to the general public in an urbanized watershed of the Southwestern U.S. Transcriptions an...

  14. Watershed management and sustainable development: Lessons learned and future directions

    Science.gov (United States)

    Karlyn Eckman; Hans M. Gregerson; Allen L. Lundgren

    2000-01-01

    Fundamental belief underlying the direction and content of this paper is that the paradigms of land and water management evolving into the 21st century increasingly favor a watershed focused approach. Underlying that approach is an appreciation of the processes of sustainable development and resource use. The increasing recognition that sustainable development and...

  15. Urban/rural connections: the New York City watershed

    Science.gov (United States)

    The Cannonsville Reservoir, which was placed in service in 1964, is a major component of the unfiltered New York City water supply system. This year, the Watershed Agricultural Program marks a 17-year history of collaboration among producers, the Natural Resources Conservation Service (NRCS), the De...

  16. EAARL topography-Potato Creek watershed, Georgia, 2010

    Science.gov (United States)

    Bonisteel-Cormier, J.M.; Nayegandhi, Amar; Fredericks, Xan; Jones, J.W.; Wright, C.W.; Brock, J.C.; Nagle, D.B.

    2011-01-01

    This DVD contains lidar-derived first-surface (FS) and bare-earth (BE) topography GIS datasets of a portion of the Potato Creek watershed in the Apalachicola-Chattahoochee-Flint River basin, Georgia. These datasets were acquired on February 27, 2010.

  17. Watershed management and organizational dynamics: nationwide findings and regional variation.

    Science.gov (United States)

    Clark, Brad T; Burkardt, Nina; King, Dawn

    2005-08-01

    Recent attention has focused on resource management initiatives at the watershed scale with emphasis on collaborative, locally driven, and decentralized institutional arrangements. Existing literature on limited selections of well-established watershed-based organizations has provided valuable insights. The current research extends this focus by including a broad survey of watershed organizations from across the United States as a means to estimate a national portrait. Organizational characteristics include year of formation, membership size and composition, budget, guiding principles, and mechanisms of decision-making. These characteristics and the issue concerns of organizations are expected to vary with respect to location. Because this research focuses on organizations that are place based and stakeholder driven, the forces driving them are expected to differ across regions of the country. On this basis of location, we suggest basic elements for a regional assessment of watershed organizations to channel future research and to better approximate the organizational dynamics, issue concerns, and information needs unique to organizations across the country. At the broadest level, the identification of regional patterns or organizational similarities may facilitate the linkage among organizations to coordinate their actions at the much broader river basin or ecosystem scale.

  18. URBAN STREAM BURIAL INCREASES WATERSHED-SCALE NITRATE EXPORT

    Science.gov (United States)

    Nitrogen (N) uptake in streams is an important ecosystem service that may be affected by the widespread burial of streams in stormwater pipes in urban watersheds. We predicted that stream burial reduces the capacity of streams to remove nitrate (NO3-) from the water column by in...

  19. A planning approach for agricultural watersheds using precision conservation

    Science.gov (United States)

    This brief article, written for a non-technical audience, discusses a recently-developed approach for watershed planning and nutrient reduction. The approach can help local stakeholders identify conservation practices that are locally preferred and determine how those practices can be distributed ac...

  20. Statistical investigations into indicator bacteria concentrations in Houston metropolitan watersheds.

    Science.gov (United States)

    Desai, Anuradha M; Rifai, Hanadi; Helfer, Emil; Moreno, Norma; Stein, Ron

    2010-04-01

    Bacterial pollution in the Houston metropolitan area (Texas) watersheds was studied using statistical methods to determine the Escherichia coli levels and causes of their spatial and temporal variability. Houston bayous generally exhibit elevated E. coli concentrations. The more urban watersheds had higher concentration ranges and geometric means and had more spatial variation with higher overall ranges at downstream monitoring stations. They also were less sensitive to temperature variations and more strongly influenced by rainfall events. The median flow in the more urban bayous is predominantly wastewater. Frequent rainfall in the region, combined with relatively long travel times in the bayous, results in elevated bacterial levels in the bayous. Multiple regression models using water quality parameters were more representative on the segment level and not at the watershed level and may not be useful for predictions that rely on conventional water quality measures, particularly in urban watersheds, such as those studied here. Cluster analysis for the segments resulted in two distinct clusters differentiated by their developed land-use, population density, domestic animal density, and grassy land-use.

  1. Evapotranspiration and runoff in a forest watershed, western Japan

    Science.gov (United States)

    Shimizu, A.; Shimizu, T.; Miyabuchi, Y.; Ogawa, Y.

    2003-10-01

    Both water and heat balances were studied in a conifer plantation watershed in south-west Japan, within the warm-temperate East Asia monsoon area. Forest cover in the watershed consists mainly of Japanese cedar (Cryptomeria japonica) and Japanese cypress (Chamaecyparis obtusa) plantations. Precipitation and runoff have been observed since 1991, so evapotranspiration can be compared with the water balance. Two meteorological observation towers were built to monitor evapotranspiration in the watershed. The annual average precipitation, amount of runoff and losses were 2166, 1243 and 923 mm, respectively. The evapotranspiration (latent heat flux) agreed well with the water balance losses. The average annual evapotranspiration at the tower built in the centre of the watershed was 902 mm; evapotranspiration at the other tower, further upslope, was 875 mm. The observed evapotranspiration was 39% to 40% of the average precipitation (2166 mm). The mean net radiation was c. 2·6 GJ m-2 year-1, and is considered a representative value of the net radiation (Rn) in coniferous plantations in this region. This region is classified in the humid zone based on the ratio of net radiation (Rn) to the energy required to evaporate the rainfall (R). The mean annual evaporation of canopy-intercepted water was 356 mm or about 15% of the average precipitation. Copyright

  2. Big Bayou Creek and Little Bayou Creek Watershed Monitoring Program

    Energy Technology Data Exchange (ETDEWEB)

    Kszos, L.A.; Peterson, M.J.; Ryon; Smith, J.G.

    1999-03-01

    Biological monitoring of Little Bayou and Big Bayou creeks, which border the Paducah Site, has been conducted since 1987. Biological monitoring was conducted by University of Kentucky from 1987 to 1991 and by staff of the Environmental Sciences Division (ESD) at Oak Ridge National Laboratory (ORNL) from 1991 through March 1999. In March 1998, renewed Kentucky Pollutant Discharge Elimination System (KPDES) permits were issued to the US Department of Energy (DOE) and US Enrichment Corporation. The renewed DOE permit requires that a watershed monitoring program be developed for the Paducah Site within 90 days of the effective date of the renewed permit. This plan outlines the sampling and analysis that will be conducted for the watershed monitoring program. The objectives of the watershed monitoring are to (1) determine whether discharges from the Paducah Site and the Solid Waste Management Units (SWMUs) associated with the Paducah Site are adversely affecting instream fauna, (2) assess the ecological health of Little Bayou and Big Bayou creeks, (3) assess the degree to which abatement actions ecologically benefit Big Bayou Creek and Little Bayou Creek, (4) provide guidance for remediation, (5) provide an evaluation of changes in potential human health concerns, and (6) provide data which could be used to assess the impact of inadvertent spills or fish kill. According to the cleanup will result in these watersheds [Big Bayou and Little Bayou creeks] achieving compliance with the applicable water quality criteria.

  3. Post-disturbance sediment recovery: Implications for watershed resilience

    Science.gov (United States)

    Sara L. Rathburn; Scott M. Shahverdian; Sandra E. Ryan

    2017-01-01

    Sediment recovery following disturbances is a measure of the time required to attain pre-disturbance sediment fluxes. Insight into the controls on recovery processes and pathways builds understanding of geomorphic resilience.We assess post-disturbance sediment recovery in three small (1.5-100 km2), largely unaltered watersheds within the northern Colorado...

  4. Dynamic phosphorus budget for lake-watershed ecosystems

    Institute of Scientific and Technical Information of China (English)

    LIU Yong; GUO Huai-cheng; WANG Li-jing; DAI Yong-li; ZHANG Xiu-min; LI Zi-hai; HE Bin

    2006-01-01

    Lake eutrophication caused by excess phosphorus (P) loading from point sources (PS) and nonpoint sources (NPS) is a persistent and serious ecological problem in China. A phosphorus budget, based on material flow analysis(MFA) and system dynamic(SD), is proposed and applied for the agriculture-dominated Qionghai Lake watershed located in southwestern China. The MFA-SD approach will not only cover the transporting process of P in the lake-watershed ecosystems, but also can deal with the changes of P budget due to the dynamics of watershed. P inflows include the fertilizer for agricultural croplands, soil losses, domestic sewage discharges, and the atmospheric disposition such as precipitation and dust sinking. Outflows are consisted of hydrologic export, water resources development, fishery and aquatic plants harvesting. The internal P recycling processes are also considered in this paper.From 1988 to 2015, the total P inflows for Lake Qionghai are in a rapid increase from 35.65 to 78.73 t/a, which results in the rising of P concentration in the lake. Among the total P load 2015, agricultural loss and domestic sewage account for 70.60% and 17.27%respectively, directly related to the rapid social-economic development and the swift urbanization. Future management programs designed to reduce P inputs must be put into practices in the coming years to ensure the ecosystem health in the watershed.

  5. Integrating contributing areas and indexing phosphorus loss from agricultural watersheds

    Science.gov (United States)

    Most states in the U.S. have adopted P Indexing to guide P-based management of agricultural fields by identifying the relative risk of P loss at farm and watershed scales. To a large extent, this risk is based on hydrologic principles whereby frequently occurring storms have a given potential to in...

  6. URBAN STREAM BURIAL INCREASES WATERSHED-SCALE NITRATE EXPORT

    Science.gov (United States)

    Nitrogen (N) uptake in streams is an important ecosystem service that may be affected by the widespread burial of streams in stormwater pipes in urban watersheds. We predicted that stream burial reduces the capacity of streams to remove nitrate (NO3-) from the water column by in...

  7. Imperial Contradictions: Is the Valley a Watershed, Region, or Cyborg?

    Science.gov (United States)

    Rudy, Alan P.

    2005-01-01

    Is California's Imperial Valley a watershed? If so, at what level and by what topographic logic? Is it a region? If so, at what level and by what geographic logic? Are its boundaries natural, political, or multivalent on different scales? In short, this essay looks at the special (re)production of environmental conditions within a cyborg world.…

  8. Modeling subsurface contaminant reactions and transport at the watershed scale

    Energy Technology Data Exchange (ETDEWEB)

    Gwo, J.P.; Jardine, P.M.; D`Azevedo, E.F. [Oak Ridge National Lab., TN (United States); Wilson, G.V. [Desert Research Inst., Las Vegas, NV (United States). Water Resources Center

    1997-12-01

    The objectives of this research are: (1) to numerically examine the multiscale effects of physical and chemical mass transfer processes on watershed scale, variably saturated subsurface contaminant transport, and (2) to conduct numerical simulations on watershed scale reactive solute transport and evaluate their implications to uncertainty characterization and cost benefit analysis. Concurrent physical and chemical nonequilibrium caused by inter aggregate gradients of pressure head and solute concentration and intra-aggregate geochemical and microbiological processes, respectively, may arise at various scales and flowpaths. To this date, experimental investigations of these complex processes at watershed scale remain a challenge and numerical studies are often needed for guidance of water resources management and decision making. This research integrates the knowledge bases developed during previous experimental and numerical investigations at a proposed waste disposal site at the Oak Ridge National Laboratory to study the concurrent effects of physical and chemical nonequilibrium. Comparison of numerical results with field data indicates that: (1) multiregion, preferential flow and solute transport exist under partially saturated condition and can be confirmed theoretically, and that (2) mass transfer between pore regions is an important process influencing contaminant movement in the subsurface. Simulations of watershed scale, multi species reactive solute transport suggest that dominance of geochemistry and hydrodynamics may occur simultaneously at different locales and influence the movement of one species relative to another. Execution times on the simulations of the reactive solute transport model also indicate that the model is ready to assist the selection of important parameters for site characterization.

  9. Critical sampling points methodology: case studies of geographically diverse watersheds.

    Science.gov (United States)

    Strobl, Robert O; Robillard, Paul D; Debels, Patrick

    2007-06-01

    Only with a properly designed water quality monitoring network can data be collected that can lead to accurate information extraction. One of the main components of water quality monitoring network design is the allocation of sampling locations. For this purpose, a design methodology, called critical sampling points (CSP), has been developed for the determination of the critical sampling locations in small, rural watersheds with regard to total phosphorus (TP) load pollution. It considers hydrologic, topographic, soil, vegetative, and land use factors. The objective of the monitoring network design in this methodology is to identify the stream locations which receive the greatest TP loads from the upstream portions of a watershed. The CSP methodology has been translated into a model, called water quality monitoring station analysis (WQMSA), which integrates a geographic information system (GIS) for the handling of the spatial aspect of the data, a hydrologic/water quality simulation model for TP load estimation, and fuzzy logic for improved input data representation. In addition, the methodology was purposely designed to be useful in diverse rural watersheds, independent of geographic location. Three watershed case studies in Pennsylvania, Amazonian Ecuador, and central Chile were examined. Each case study offered a different degree of data availability. It was demonstrated that the developed methodology could be successfully used in all three case studies. The case studies suggest that the CSP methodology, in form of the WQMSA model, has potential in applications world-wide.

  10. Doble difusión a partir de mediciones de microestructura en los canales Martínez y Baker, Patagonia chilena central (47,85°S

    Directory of Open Access Journals (Sweden)

    Iván Pérez-Santos

    2013-03-01

    Full Text Available Con un microperfilador SCAMP (Self Contained Autonomous MicroProfile se detectó un proceso de Doble Difusión Convectiva (DDC, en los canales Martínez y Baker de la Patagonia central, Chile. Este perfilador midió temperatura y salinidad en la columna de agua con una resolución del orden de milímetros. El muestreo se efectuó en diciembre 2011, en 19 estaciones oceanográficas de ~55 m de profundidad. Los registros del microperfilador permitieron detectar la formación de escaleras termohalinas que caracterizan la formación de la DDC. Por medio del ángulo de Turner se confirmó que debajo de una capa superficial fuertemente estratificada (7-10 m se registraron eventos de DDC a profundidades entre 15 y 45 m. La DDC fue débil en la mayoría de los registros pero se evidenciaron eventos fuertes entre 15 y 40 m. En la capa subsuperficial, su origen se debió al intercalamiento de las masas aguas estuarinas (aguas frías y menos saladas encima de las oceánicas (aguas más cálidas y saladas, mientras que en la superficie la interacción océano-atmósfera favoreció su ocurrencia. La DDC en conjunto con el viento, las mareas y las ondas internas, puede constituir un mecanismo importante para la mezcla vertical, influenciando los flujos de calor, el hábitat de las especies marinas en estas profundidades y la exportación de carbono hacia los sedimentos.

  11. Aluminum availability in forest floor of two acidified mountain watersheds

    Science.gov (United States)

    Kaåa, Jiří; Tahovská, Karolina

    2010-05-01

    We measured seasonal variability of soil chemistry in upper organic soil horizons (O and A) in watersheds of two acidified mountain lakes, Plešné (PL) and Čertovo (CT) in Bohemian Forest (Czech Republic). Both the localities are acidified, PL watershed recently undergoes strong changes due to bark beetle infestation followed by forest dieback. Soils were sampled in 6-week period during the years 2008 - 2009. The aim of the study was to investigate changes in Al availability in upper organic soil horizons during year together with changes in nutrient availability and transformations. We observed significant seasonal variability in concentration of water extractable Al (AlH2O) and exchangeable Al (AlEX, determined as 1M KCl extractable). Concentrations of AlH2O, which represents quickly releasable form of Al, varied between 0.5 - 2.7 mg kg-1and 0.5 - 4.4 mg kg-1in the PL - O and PL - A horizons, respectively, and between 0.4 - 1.4 and 0.6 - 3.5 mg kg-1in the CT - O and CT - A horizons, respectively. Concentrations of AlH2O in PL watershed compared to AlH2O concentrations in CT watershed were higher, despite higher soil pH values there. The main peaks of AlH2O concentrations were observed during the winters, while the concentrations were lowest during the springs and the falls. The major part (>90%) of AlH2O was the organically bound Al. Concentrations of AlEX, representing potentially toxic Al form, were approximately 2 - 3 orders of magnitude higher compared to AlH2O concentrations, and were consistently lower in PL watershed. In H2O extracts, we observed dramatic increase of available P concentrations in upper organic horizons in PL watershed after elevated litter fall associated with forest dieback. In parallel we also observed changes in nitrogen chemistry, especially significant increase of NH4-N concentrations in both the horizons. Both the changes in P and N availability in the PL watershed are probably connected with the forest dieback. (For more details

  12. Effects of urbanization on groundwater evolution in an urbanizing watershed

    Science.gov (United States)

    Reyes, D.; Banner, J. L.; Bendik, N.

    2011-12-01

    The Jollyville Plateau Salamander (Eurycea tonkawae), a candidate species for listing under the Endangered Species Act, is endemic to springs and caves within the Bull Creek Watershed of Austin, Texas. Rapid urbanization endangers known populations of this salamander. Conservation strategies lack information on the extent of groundwater contamination from anthropogenic sources in this karst watershed. Spring water was analyzed for strontium (Sr) isotopes and major ions from sites classified as "urban" or "rural" based on impervious cover estimates. Previous studies have shown that the 87Sr/86Sr value of municipal water is significantly higher than values for natural streamwater, which are similar to those for the Cretaceous limestone bedrock of the region's watersheds. We investigate the application of this relationship to understanding the effects of urbanization on groundwater quality. The use of Sr isotopes as hydrochemical tracers is complemented by major ion concentrations, specifically the dominant ions in natural groundwater (Ca and HCO3) and the ions associated with the addition of wastewater (Na and Cl). To identify high priority salamander-inhabited springs for water quality remediation, we explore the processes controlling the chemical evolution of groundwater such as municipal water inputs, groundwater-soil interactions, and solution/dissolution reactions. 87Sr/86Sr values for water samples from within the watershed range from 0.70760 to 0.70875, the highest values corresponding to sites located in the urbanized areas of the watershed. Analyses of the covariation of Sr isotopes with major ion concentrations help elucidate controls on spring water evolution. Springs located in rural portions of the watershed have low 87Sr/86Sr, high concentrations of Ca and HCO3, and low concentrations of Na and Cl. This is consistent with small inputs of municipal water. Three springs located in urban portions of the watershed have high 87Sr/86Sr, low Ca and HCO3, and

  13. El espejismo nacional-socialista. La relación entre dos catedráticos de Prehistoria, Oswald Menghin y Julio Martínez Santa-Olalla (1935-1952

    Directory of Open Access Journals (Sweden)

    Mederos Martín, Alfredo

    2014-12-01

    , Claudio Sanchez-Albornoz. Menghin was not permitted to give lectures until 1953, and only consolidated his position when his criminal trial was cancelled in December 1956. In 1957 at the age of 69, he obtained the position of Acting Professor of Prehistory at the National University of La Plata. In 1958, Menghin was appointed Professor in General and Old World Prehistory at the University of Buenos Aires, where he retired in 1968, aged 80.Oswald Menghin, Catedrático de Prehistoria del Hombre de la Universidad de Viena entre 1922-1945, fue partidario de la unidad de Austria con Alemania y simpatizante con ideas del NSDAP sobre la necesidad de evitar una mezcla racial entre arios y judíos. Durante su etapa como Catedrático-Residente en la Universidad de Fouad en El Cairo entre 1930-1933, por contacto con Hermann Junker, radicalizó sus puntos de vista y redactó su libro Espíritu y sangre. Principios básicos de raza, lengua, cultura y nación. Su etapa como Rector en el curso 1935-1936 le catapultó a la política como miembro del consejo directivo del partido fascista austriaco, Vaterländische Front, entre 1936-1937 y su posterior nombramiento como Ministro de Educación entre marzo y mayo de 1938, justo después de la invasión de Hitler de Austria. Siendo Ministro, solicitó su ingreso en el NSDAP, que no se aceptó hasta junio de 1940, por su pertenencia previa a organizaciones católicas secretas. Menghin entró en contacto con Martínez Santa-Olalla, después de la celebración del Jubileo del Instituto de Morfología Cultural de Frankfurt en junio y julio de 1938. A raíz de una estancia de investigación de Almagro Basch en Alemania y Austria en enero y febrero de 1942, y la posterior visita a Barcelona de Menghin en junio de 1942, optó por distanciarse de Martínez Santa-Olalla, no visitando Madrid, cortando la relación epistolar e informando negativamente sobre él a las SS-Ahnenerbe. Prisionero en dos campos de concentración norteamericanos entre mayo de

  14. Headwater management alters sources, flowpaths, and fluxes of water, carbon, and nitrogen in urban watersheds

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    Pennino, M. J.; Kaushal, S.; Mayer, P. M.; Welty, C.; Miller, A. J.

    2012-12-01

    Increased urbanization has altered watershed hydrology and increased nutrient pollution, leading to eutrophication and hypoxia in downstream coastal ecosystems. Due to urban stream degradation, there have been efforts to restore streams and reduce peak-flow discharges and contaminant export through stormwater management and stream restoration. However, there have been relatively few studies comparing watershed scale impacts of contrasting headwater management practices on sources and fluxes of water, carbon, and nutrients across space and time. In this study we compared sources and fluxes of water, carbon (C), and nitrogen (N) along 4 watersheds of contrasting headwater management: 2 urban degraded watersheds with minimal or no stormwater management and 2 managed urban watersheds with stormwater controls and stream restoration. Surface water samples were collected biweekly at USGS gauging stations located within each watershed over 2 years. Spatially, watersheds were sampled longitudinally during 4 seasons. Sources of water, nitrate, and carbon were investigated using isotopic and spectroscopic tracer techniques. Indicator anions (F-, Cl-, I-, SO42-) were also used to trace anthropogenic vs. natural water sources. Hydrologic flowpaths (groundwater vs. overland flow) were assessed with longitudinal synoptic surveys using stable water isotopes of H and O. Annual fluxes of water, C, and N, were estimated using the USGS program LOADEST. H and O isotope data showed that the source of stream water is primarily groundwater during summer months, with greater contributions from stormflow during winter months for all 4 watersheds. Elevated levels of indicator anions (F-, Cl-, I-, SO42-) as well as greater "pulses" of C and N over time in the degraded vs. managed watersheds indicate potential sewage sources due to leaky sanitary sewers and greater stormdrain inputs. Unlike the managed watersheds where hydrologic flowpaths were from groundwater in headwaters, the longitudinal

  15. Export and Metabolism of Carbon in Urban Watersheds: Climate Implications

    Science.gov (United States)

    Smith, R. M.; Kaushal, S.

    2014-12-01

    Rivers export and transform globally-significant quantities of carbon from watersheds to coastal ecosystems. Urbanization and climate change influence these fluxes by altering the hydrologic regime, water temperature, and anthropogenic sources of organic matter. Here, we quantify export and metabolism of carbon in highly urbanized, coastal watersheds, and evaluate the importance of physical drivers linked to climate and land use. Using a combination of discrete-samples, continuous water quality sensors, lab experiments, and modeling, we quantified rates of DOC, DIC, and CO2 export as well as changes in DOC quality and in-stream metabolism in four highly developed watersheds of the Chesapeake Bay over three years. Annual DOC and DIC exports from the four watersheds varied from 9 to 23 and 19 to 59 Kg ha-1yr-1 respectively. The range of daily CO2 concentrations was 0.01 to 2.6mg L-1, equivalent to between 0.37 and 53% of daily DOC export across all streams and dates. All sites were net-heterotrophic for the majority of the year (NEP0) during spring and early summer. There was a significant (P<0.05) relationship between gross primary production and ecosystem respiration, suggesting that autotrophic respiration is an important fraction of ER, and labile algal biomass may influence oxygen demand downstream. Our results suggest that urban watersheds can export significant amounts of DOC, DIC, and CO2 to coastal zones. The influence of urbanization on coastal water quality and greenhouse gases may be exacerbated by climate change as temperatures and storm frequency continue to rise.

  16. Baseline Profile of Soil Samples from Upian River Watershed

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    Wilanfranco Caballero TAYONE

    2014-06-01

    Full Text Available The Mines and Geosciences Bureau (MGB in the Philippines is currently mapping out the entire Davao City Watershed Area (DCWA. There are 8 major watershed areas within DCWA that has been identified by the MGB and the largest is the Davao River Watershed Area (DRWA. A smaller sub-watershed within DRWA, the Upian River Watershed Area (URWA, was proposed of which its boundary and soil profile is yet to be established. This study focused on the analyses of the soil samples from URWA. The results for pH, organic matter, cation exchange capacity, N, P, K, Ca and Mg were then compared to the Bureau of Soil standard for its fertility rating. Analysis of lead (Pb was also included as a pollutant indicator for possible soil contamination. There are 4 sampling sites with unfavorable ratings for pH, 3 for both organic matter and phosphorus, and 2 stations for both nitrogen and calcium. Fertility rating is generally good for cation exchange capacity, potassium and magnesium. The Bureau of Soil has no existing standards for micronutrients. However, all sampling sites were found to be too low with micronutrients according to Gershuny and Smillie. No indication of lead contamination or pollution on all sites as far as natural levels of lead in surface soil is concerned. This study will provide baseline information that is useful to all stakeholders, to the people living near the area, farmers, planners, and resource managers. This can also provide inputs to key government agencies in the Philippines like the Department of Environment and Natural Resources (DENR and the City Planning Office of Davao in formulating policies for sustainable management of the resource upon implementation of their programs and projects. Without the aforementioned information, planners would have difficulty in predicting the impact or recommend best management strategies for a specific land use.

  17. Nitrogen sink in a small forested watershed of subtropical China

    Institute of Scientific and Technical Information of China (English)

    Laiming Huang; Jinling Yang; Ganlin Zhang

    2011-01-01

    Global nitrogen (N) emission and deposition have been increased rapidly due to massive mobilization of N which may have longreaching impacts on ecosystems. Many agricultural and forest ecosystems have been identified as secondary N sources. In the present study, the input-output budget of inorganic N in a small forested watershed of subtropical China was investigated. Inorganic N wet deposition and discharge by stream water were monitored from March, 2007 to February, 2009. The concentrations and fluxes of inorganic N in wet precipitation and stream water and net retention of N were calculated. Global N input by dry deposition and biological fixation and N output by denitrification for forested watersheds elsewhere were reported as references to evaluate whether the studied forested watershed is a source or a sink for N. The results show that the inorganic N output by the stream water is mainly caused by NO3--N even though the input is dominated by NH4+-N. The mean flux of inorganic N input by wet precipitation and output by stream water is 1.672 and 0.537 g N/(m2·yr), respectively, which indicates that most of inorganic N input is retained in the forested watershed. Net retention of inorganic N reaches 1.135 g N/(m2·yr) considering wet precipitation as the main input and stream water as the main output. If N input by dry deposition and biological fixation and output by denitrification are taken into account, this subtropical forested watershed currently acts as a considerable sink for N, with a net sink ranging from 1.309 to 1.913 g N/(m2·yr)which may enhance carbon sequestration of the terrestrial ecosystem.

  18. Nitrogen sink in a small forested watershed of subtropical China.

    Science.gov (United States)

    Huang, Laiming; Yang, Jinling; Zhang, Ganlin

    2011-01-01

    Global nitrogen (N) emission and deposition have been increased rapidly due to massive mobilization of N which may have long-reaching impacts on ecosystems. Many agricultural and forest ecosystems have been identified as secondary N sources. In the present study, the input-output budget of inorganic N in a small forested watershed of subtropical China was investigated. Inorganic N wet deposition and discharge by stream water were monitored from March, 2007 to February, 2009. The concentrations and fluxes of inorganic N in wet precipitation and stream water and net retention of N were calculated. Global N input by dry deposition and biological fixation and N output by denitrification for forested watersheds elsewhere were reported as references to evaluate whether the studied forested watershed is a source or a sink for N. The results show that the inorganic N output by the stream water is mainly caused by NO3(-)-N even though the input is dominated by NH4(+)-N. The mean flux of inorganic N input by wet precipitation and output by stream water is 1.672 and 0.537 g N/(m2 x yr), respectively, which indicates that most of inorganic N input is retained in the forested watershed. Net retention of inorganic N reaches 1.135 g N/(m2 x yr) considering wet precipitation as the main input and stream water as the main output. If N input by dry deposition and biological fixation and output by denitrification are taken into account, this subtropical forested watershed currently acts as a considerable sink for N, with a net sink ranging from 1.309 to 1.913 g N/(m2 x yr) which may enhance carbon sequestration of the terrestrial ecosystem.

  19. Efficiency of Evolutionary Algorithms for Calibration of Watershed Models

    Science.gov (United States)

    Ahmadi, M.; Arabi, M.

    2009-12-01

    Since the promulgation of the Clean Water Act in the U.S. and other similar legislations around the world over the past three decades, watershed management programs have focused on the nexus of pollution prevention and mitigation. In this context, hydrologic/water quality models have been increasingly embedded in the decision making process. Simulation models are now commonly used to investigate the hydrologic response of watershed systems under varying climatic and land use conditions, and also to study the fate and transport of contaminants at various spatiotemporal scales. Adequate calibration and corroboration of models for various outputs at varying scales is an essential component of watershed modeling. The parameter estimation process could be challenging when multiple objectives are important. For example, improving streamflow predictions of the model at a stream location may result in degradation of model predictions for sediments and/or nutrient at the same location or other outlets. This paper aims to evaluate the applicability and efficiency of single and multi objective evolutionary algorithms for parameter estimation of complex watershed models. To this end, the Shuffled Complex Evolution (SCE-UA) algorithm, a single-objective genetic algorithm (GA), and a multi-objective genetic algorithm (i.e., NSGA-II) were reconciled with the Soil and Water Assessment Tool (SWAT) to calibrate the model at various locations within the Wildcat Creek Watershed, Indiana. The efficiency of these methods were investigated using different error statistics including root mean square error, coefficient of determination and Nash-Sutcliffe efficiency coefficient for the output variables as well as the baseflow component of the stream discharge. A sensitivity analysis was carried out to screening model parameters that bear significant uncertainties. Results indicated that while flow processes can be reasonably ascertained, parameterization of nutrient and pesticide processes

  20. Travel time analysis for a subsurface drained sub-watershed in Upper Big Walnut Creek Watershed, Ohio

    Science.gov (United States)

    Runoff travel time, which is a function of watershed and storm characteristics, is an important parameter affecting the prediction accuracy of hydrologic models. Although, time of concentration (tc) is a most widely used time parameter, it has multiple conceptual and computational definitions. Most ...