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251 - 275 of 417 Items << < 6 7 8 9 10 11 12 13 14 15 > >>
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"May 19, 2004"
2004-05-19
2005-07-19 2005-06-30 |
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Process-based hydrological models have a long history dating back to the 1960s. Criticized by some as over-parameterized, overly complex, and difficult to use, a more nuanced view is that these tools are necessary in many situations and, in a...
2016-06-01
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Furrow irrigation is the dominant practice for irrigating row crops in the
western Treasure Valley region near Ontario, Oregon. Though improvements
have been made in management practices over the years, excessive runoff and
deep percolation are...
1995-06-09 (iso8601)
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This report presents a nested gauging study of streamflow variability from three
sub-catchments (150-200 ha in area) of the Burns Creek catchment (565 ha) in the Entiat
Experimental Forest of central Washington State. We test and reject the...
2007-03-23 (iso8601)
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EXECUTIVE SUMMARY
Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River systems. No bull trout have been observed...
1997-10-01
2007-12-12 2005-08-16 |
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Annual Program Summary and Monitoring Report - FY2004
Table of Contents
ANNUAL PROGRAM SUMMARY
1.0 Introduction 3
2.0 Summary of Accomplishments 3
3.0 Budget and Employment 6
4.0 Land Use Allocations within the Klamath Falls...
2024-05-03
2005-07-19 2005-04-14 |
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Water for new residential development in Lake Point (Tooele County), Utah may be supplied by public-supply wells completed in consolidated rock on the east side of Lake Point. Groundwater
flow models were developed to help understand the effect...
2024-05-03
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One of the most significant challenges faced by hydrogeologic modelers is the disparity between the spatial and
temporal scales at which fundamental flow, transport, and reaction processes can best be understood and quantified
(e.g., microscopic...
2015-01 (iso8601)
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Effective management of the water resources of the Mississippi Alluvial Plain in eastern Arkansas involves understanding the nature of existing problems, estimating total water demands, predicting how much of the total demand can be provided by...
1989-09-17
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Rigorous models for maximizing sustainable groundwater withdrawals may require more computer memory for their constraint set than is available. In some situations, alternative constraint formulations yield similar or identical answers resulting in...
1992-01-01
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While groundwater withdrawals in the Eastern Snake River Plain Aquifer increase, the number of recharge sources to the aquifer remains the same. These sources of recharge include precipitation, stream and river losses, irrigation percolation,...
2024-05-03
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The development of a mathematical model for study of water management and budget of the irrigated area of the Snake River Fan in eastern Idaho was initiated in May, 1970. The study was initiated to develop alternate management solutions for...
1972-05-01
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A theoretical equation was adapted and modified for a water-table aquifer to relate freshwater flow to the sea, geometry of the fresh water-sea water interface, and aquifer characteristics under dynamic equilibrium. Verification was obtained in...
2010-03-12
2010-03-12 1967-02-01 |
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Correspondence,
subject files, clippings, legislation files, reports, newsletters, meeting
minutes, legal case files, and other records of the Washington Environmental
Council, which works to protect and restore the environment in...
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-4-
to its plans, and if the works under Phase 1 are constructed immediately, the salinity would fluctuate permanently between 1,500 and 2,020 parts per million, as against the approximate 900 p.p.m. of the water delivered to Mexico at Morelos...
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Office of Environment Quality Control, Department of Health Grant/Contract No. T-377
2008-07-17
2008-07-17 1988-09-01 |
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Draft; Title from title screen (viewed on Mar. 17, 2006); "October 2005."; "EPA 841-B-05-005."; Includes bibliographical references
2008-01-23 2006-04-24 |
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Process-based hydrological models have a long history dating back to the 1960s. Criticized by some as over-parameterized, overly complex, and difficult to use, a more nuanced view is that these tools are necessary in many situations and, in a...
2016-06-01
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The roles of fabrics in subdrains are identified for normal
groundwater flow conditions to determine hydraulic and pore characteristics
necessary for design considerations. Two conditions are discussed:
(1) the fabric in direct contact with the...
1979-06-07 (iso8601)
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Current research indicates that the expansion of
western juniper can inhibit soil water retention, storage
and prolonged releases from watersheds. This phenomenon
is of great importance in eastern Oregon, as western
juniper is encroaching into...
2004-09-22 (iso8601)
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Artificial neural network (ANN) is considered to be a powerful tool for solving groundwater problems which require a large number of flow and contaminant transport (GFCT) simulations. Often, GFCT models are nonlinear, and they are difficult to...
1998-10-01
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-4- to its plans, and if the works under Phase 1 are constructed immediately, the salinity would fluctuate permanently between 1,500 and 2,020 parts per million, as against the approximate 900 p.p.m. of the water delivered to Mexico at Morelos...
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Non-beneficial consumptive use.-- Salvage of water through eradication of phreatophytes and other riparian vegetation is believed to be practicable and economical in certain parts of the region. However, few reliable data are available on the...
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We, the U.S. Fish and Wildlife Service (Service), designate critical habitat for the Klamath River and Columbia River populations of bull trout {Salvelinus confluentus) pursuant to the Endangered Species Act of 1973, as amended (Act). For the...
2004-10-06
2008-08-18 2005-06-23 |
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Rapid population and economic growth in Texas is accompanied by increased needs for water supply and flood control. Depleting groundwater reserves are resulting in an increased reliance on surface water. The rising cost of fossil fuel during the...
2007-11-30
2007-11-30 1985-11-01 |
