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Development of a procedure to estimate runoff and sediment transport in ephemeral streams

Description: A distributed hydrologic model for application on small, semiarid watersheds is developed. The distributed model incorporates simplified routing schemes to include the influence of transmission losses on runoff. A sediment transport model, by sediment size fractions, is developed to compute transport capacity and sediment yield in noncohesive, alluvial channels. Based on available information published in soils and topographic maps and on channel and bed sediment characteristics, the procedure … more
Date: January 1, 1982
Creator: Lane, L.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Walker Branch Watershed: site description and research scope

Description: Walker Branch Watershed is located on the Oak Ridge Reservation in the Ridge and Valley section of Tennessee. The watershed (97 ha consisting of 2 subwatersheds) is underlain by Knox Dolomite; soils formed over the dolomitic substrate are deep, well-drained Typic Paleudults. The watershed is forested. The overstory is predominantly oak-hickory with lesser amounts of pine and mesic hardwoods. The Walker Branch Watershed Project was initiated in 1967 to: relate the productivity and water quality … more
Date: January 1, 1977
Creator: Harris, W. F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Arctic hydrology and meteorology

Description: The behavior of arctic ecosystems is directly related to the ongoing physical processes of heat and mass transfer. Furthermore, this system undergoes very large fluctuations in the surface energy balance. The buffering effect of both snow and the surface organic soils can be seen by looking at the surface and 40 cm soil temperatures. The active layer, that surface zone above the permafrost table, is either continually freezing or thawing. A large percentage of energy into and out of a watershed… more
Date: January 1, 1988
Creator: Kane, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Limnological aspects of acid precipitation

Description: Lakes and streams in parts of Norway, Sweden, Canada, and the United States are being severely impacted by acidic precipitation. Scientists meeting at Sagamore, New York, agreed that this is the most serious limnological problem today. The factor responsible for determining the sensitivity of surface waters to acidification is alkalinity derived by weathering of soils and bedrock in the watershed. Acidification, defined as a reduction in alkalinity, can be quantified if preacidification alkalin… more
Date: January 1, 1978
Creator: Hendrey, G.R. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Arctic hydrology and meteorology

Description: During 1990, we have continued our meteorological and hydrologic data collection in support of our process-oriented research. The six years of data collected to data is unique in its scope and continuity in a North Hemisphere Arctic setting. This valuable data base has allowed us to further our understanding of the interconnections and interactions between the atmosphere/hydrosphere/biosphere/lithosphere. The increased understanding of the heat and mass transfer processes has allowed us to incr… more
Date: January 1, 1990
Creator: Kane, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Arctic hydrology and meteorology

Description: To date, five years of hydrologic and meteorologic data have been collected at Imnavait Creek near Toolik Lake, Alaska. This is the most complete set of field data of this type collected in the Arctic of North America. These data have been used in process-oriented research to increase our understanding of atmosphere/hydrosphere/biosphere/lithosphere interactions. Basically, we are monitoring heat and mass transfer between various spheres to quantify rates. These could be rates of mass movement … more
Date: January 1, 1989
Creator: Kane, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Panther Creek, Idaho, Habitat Rehabilitation, Final Report.

Description: The purpose of the project was to achieve full chinook salmon and steelhead trout production in the Panther Creek, Idaho, basin. Plans were developed to eliminate the sources of toxic effluent entering Panther Creek. Operation of a cobalt-copper mine since the 1930's has resulted in acid, metal-bearing drainage entering the watershed from underground workings and tailings piles. The report discusses plans for eliminating and/or treating the effluent to rehabilitate the water quality of Panther … more
Date: January 1, 1986
Creator: Reiser, Dudley W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual dynamics within the active layer

Description: We have continued our meteorological and hydrologic data collection in support of our process-oriented research. The six years of data collected to date is unique in its scope and continuity in a North Hemisphere Arctic setting. This valuable data base has allowed us to further our understanding of the interconnections and interactions between the atmosphere/hydrosphere/biosphere/lithosphere. The increased understanding of the heat and mass transfer processes has allowed us to increase our mode… more
Date: January 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Forecasting contaminant concentrations: Spills in the White Oak Creek Basin

Description: The Streamflow Synthesis and Reservoir Regulation (SSARR) model has been installed and sufficiently calibrated for use in managing accidental release of contaminants in surface waters of the White Oak Creek (WOC) watershed at ORNL. The model employs existing watershed conditions, hydrologic parameters representing basin response to precipitation, and a Quantitative Precipitation Forecast (QPF) to predict variable flow conditions throughout the basin. Natural runoff from each of the hydrological… more
Date: January 1, 1987
Creator: Borders, D.M.; Hyndman, D.W. & Huff, D.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Habitat Evaluation Procedures (HEP) Report; Iskuulpa Wildlife Mitigation and Watershed Project, Technical Report 1998-2003.

Description: U.S. Fish and Wildlife Service (USFWS) Habitat Evaluation Procedures (HEP) were used to determine the number of habitat units credited to evaluate lands acquired and leased in Eskuulpa Watershed, a Confederated Tribes of the Umatilla Indian Reservation watershed and wildlife mitigation project. The project is designed to partially credit habitat losses incurred by BPA for the construction of the John Day and McNary hydroelectric facilities on the Columbia River. Upland and riparian forest, upla… more
Date: January 1, 2003
Creator: Quaempts, Eric
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Integrated Status and Effectiveness Monitoring Program - Entiat River Snorkel Surveys and Rotary Screw Trap, 2007.

Description: The USFWS Mid-Columbia River Fishery Resource Office conducted snorkel surveys at 24 sites during the summer and fall periods of 2006 survey periods as part of the Integrated Status and Effectiveness Monitoring Program in the Entiat River. A total of 37,938 fish from 15 species/genera and an unknown category were enumerated. Chinook salmon were the overall most common fish observed and comprised 15% of fish enumerated followed by rainbow trout (10%) and mountain whitefish (7%). Day surveys were… more
Date: January 1, 2008
Creator: Nelle, R.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Habitat Evaluation Procedures (HEP) Report : Rainwater Wildlife Area, 1998-2001 Technical Report.

Description: The 8,768 acre Rainwater Wildlife Area was acquired in September 1998 by the Confederated Tribes of the Umatilla Indian Reservation (CTUIR) through an agreement with Bonneville Power Administration (BPA) to partially offset habitat losses associated with construction of the John Day and McNary hydroelectric facilities on the mainstem Columbia River. U.S. Fish and Wildlife Service (USFWS) Habitat Evaluation Procedures (HEP) were used to determine the number of habitat units credited to BPA for a… more
Date: January 1, 2004
Creator: Childs, Allen
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluation of an Unsuccessful Brook Trout Electrofishing Removal Project in a Small Rocky Mountain Stream.

Description: In the western United States, exotic brook trout Salvelinus fontinalis frequently have a deleterious effect on native salmonids, and biologists often attempt to remove brook trout from streams by means of electrofishing. Although the success of such projects typically is low, few studies have assessed the underlying mechanisms of failure, especially in terms of compensatory responses. A multiagency watershed advisory group (WAG) conducted a 3-year removal project to reduce brook trout and enhan… more
Date: January 26, 2006
Creator: Meyer, Kevin A.; Lamansky, Jr., James A. & Schill, Daniel J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Garfield County Habitat for Fall Chinook and Steelhead, Annual Report 2006.

Description: The objectives and tasks outlined in detail in this project report were implemented during calendar year 2006 in all the watersheds of Garfield County. The Pataha Creek Watershed was selected in 1993, along with the Tucannon and Asotin Creeks, as model watersheds by the Northwest Power and Conservation Council (NPCC). In the years since 1993, other watersheds in Garfield County have been designated as salmon bearing streams and have received numerous practices formerly just designated for the P… more
Date: January 1, 2007
Creator: Bartels, Duane
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Groundwater Availability Within the Salton Sea Basin Final Report

Description: It is widely recognized that increasing demands for water in Southern California are being affected by actions to reduce and redirect the amount of water imported from the Colorado River. In the Imperial Valley region, for example, import reductions will not only affect agricultural users but also could produce significant collateral impacts on the level and quality of water in the Salton Sea, its regional ecology, or even the long term air quality in the greater basin. The notion of using grou… more
Date: January 11, 2008
Creator: Tompson, A; Demir, Z; Moran, J; Mason, D; Wagoner, J; Kollet, S et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regulatory compliance issues related to the White Oak Creek Embayment time-critical removal action

Description: In September 1990, Martin Marietta Energy Systems (Energy Systems) discovered high levels of Cesium-137 ({sup 137}Cs) in surface sedimenus near the mouth of White Oak Creek Embayment (WOCE). White Oak Creek (WOC) receives surface water drainage from Oak Ridge National Laboratory. Since this discovery, the Department of Energy (DOE) and Energy Systems have pursued actions designed to stabilize the contaminated WOCE sediments under provisions of the Comprehensive Environmental Response, Compensat… more
Date: January 1, 1991
Creator: Leslie, M. (CDM Federal Programs Corp., Oak Ridge, TN (United States)) & Kimmel, B.L. (Oak Ridge National Lab., TN (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

California's forest resources. Preliminary assessment

Description: This Preliminary Assessment was prepared in response to the California Forest Resources Assessment and Policy Act of 1977 (FRAPA). This Act was passed to improve the information base upon which State resource administrators formulate forest policy. The Act provides for this report and a full assessment by 1987 and at five year intervals thereafter. Information is presented under the following chapter titles: introduction to the forest resources assessment program; the forest area: a general des… more
Date: January 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A combined GIS-HEC procedure for floodplain analyses

Description: The Hydrologic Engineering Center's Flood-Hydrograph (HEC-1) and Water Surface Profile (HEC-2) models are routinely used to define floodplain elevations. Detailed topographic data are commonly available from graphic information systems (GIS). These disjointed technologies can be combined if the GIS system has a drainage recognition capability. A conceptual procedure is suggested for incorporating this feature into the GIS framework so that cross- sectional information can be extracted and expor… more
Date: January 1, 1991
Creator: McLin, S.G. (Los Alamos National Lab., NM (United States)) & Fuller, G.W. (Autometric, Inc., Lakewood, CO (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Active layer hydrology for Imnavait Creek, Toolik, Alaska

Description: In the annual hydrologic cycle, snowmelt is the most significant event at Imnavait Creek located near Toolik Lake, Alaska. Precipitation that has accumulated for more than 6 months on the surface melts in a relatively short period of 7 to 10 days once sustained melting occurs. During the ablation period, runoff dominates the hydrologic cycle. Some meltwater goes to rewetting the organic soils in the active layer. The remainder is lost primarily because of evaporation, since transpiration is not… more
Date: January 1, 1986
Creator: Kane, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Savannah River Site environmental report for 1991. [Contains Glossary]

Description: This report describes environmental activities conducted on and in the vicinity of the Savannah River Site (SRS) in Aiken, S.C., from Jan. 1 to Dec. 31, 1991, with an update on compliance activities through April 1, 1992. The report is a single volume with a separate summary pamphlet highlighting the major findings for 1991. The report is divided into an executive summary and 14 chapters containing information on environmental compliance issues, environmental monitoring methods and programs, an… more
Date: January 1, 1991
Creator: Arnett, M. W.; Karapatakis, L. K.; Mamatey, A. R. & Todd, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dynamics of trace element export from a deciduous watershed, Walker Branch, Tennessee

Description: As part of an integrated study of trace contaminant behavior on a landscape scale, concentrations of several trace elements in both dissolved and particulate form were measured regularly in streamflow from Walker Branch Watershed during the period September 1975 to August 1976. In general Cd, Cu, and Cr were transported primarily in dissolved form, with the relative fraction in particulate form increasing during storms. Iron and Mn, responding to the high pH (approximately 8.0) and oxygenated c… more
Date: January 1, 1977
Creator: Turner, R. R.; Lindberg, S. E. & Talbot, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Lake Jackson watershed study: description of sites, methodology and scope of research. [Impact of urbanization on water quality and geochemistry of watershed of recreational lake in north Florida]

Description: The Lake Jackson watershed study was undertaken to quantify changes in water quality and geochemical exports resulting from urbanization within the 11,900 hectare watershed of a recreational lake in north Florida. Three subbasins of 430, 611, and 792 hectares in size and otherwise similar in all respects except land-use were instrumented for intensive hydrologic and chemical monitoring during a two-year period (June 1973--May 1976). Two of these subbasins offered considerable contrast in major … more
Date: January 1, 1977
Creator: Turner, R. R.; Burton, T. M. & Harriss, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Land and water resources for environmental research on Oak Ridge Reservation

Description: Resources for environmental research on the Oak Ridge Reservation are analogous to the highly complex, physical and engineering facilities of the Oak Ridge National Laboratory. Consequently, land and water resources have been committed to comprehensive research for the purpose of providing relevant, scientific insights on environmental problems associated with ERDA's programs. Diverse aquatic, terrestrial, and agricultural ecosystems are designated for short- and long-term research related to e… more
Date: January 1, 1977
Creator: Dahlman, R. C.; Kitchings, J. T. & Elwood, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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