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Page 1661, results 41501 - 41525

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Design of Manning's-roughness-coefficient study in New York State
William F. Coon
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
Field-collected hydraulic data can be used to compute roughness coefficients for channels with different hydraulic characteristics. Suggested criteria for the design of a roughness-coefficient study include: (1) location of the study reach close to an established streamflow-monitoring site with a stable high-flow stage-to-discharge relation; (2) uniform hydraulic conditions within, and...
Crude-oil spill research project near Bemidji, Minnesota - Bibliography, 1984-1994
S. E. Smith, M. F. Hult
1994, Open-File Report 93-373
The U.S. Geological Survey began a research project at the site of a crude-oil spill near Bemidji, Minnesota in 1983. The project is part of the U.S. Geological Survey's Toxic Substances Hydrology Program. The objectives of research at the site are to obtain an understanding of the mobilization, transport, and...
White sturgeon spawning and rearing habitat in the lower Columbia River
Michael J. Parsley, Lance G. Beckman
1994, North American Journal of Fisheries Management (14) 812-827
Estimates of spawning habitat for white sturgeons Acipenser transmontanus in the tailraces of the four dams on the lower 470 km of the Columbia River were obtained by using the Physical Habitat Simulation System of the U.S. Fish and Wildlife Service's Instream Flow Incremental Methodology to identify areas with suitable...
A bibliography of "Dreissena polymorpha in European and Russian waters: 1964-1993"
Don W. Schloesser, Abraham bij de Vaate, Ann Zimmerman
1994, Journal of Shellfish Research (13) 243-267
A bibliography of over 1000 papers on the biology, impacts, and control of the zebra mussel (Dreissena polymorpha) in European and Russian waters is compiled to aid scientists and managers in addressing this species of economic and ecological importance. The bibliography primarily includes publications between the early 1960s and early...
Water-resources investigations in Wisconsin
D. E. Maertz
1994, Open-File Report 94-321
The statewide average precipitation of 38.79 inches for the 1993 water year was 122 percent of the normal annual precipitation of 31.77 inches for water years 1961-90. Average precipitation values ranged from 103 percent of normal in northwestern Wisconsin to 150 percent of normal in southwestern Wisconsin (Pamela Naber Knox,...
Determination of traveltime in the Delaware River, Hancock, New York, to the Delaware Water Gap by use of a conservative dye tracer
K. E. White, T.W. Kratzer
1994, Water-Resources Investigations Report 93-4203
Traveltime of a soluble substance was determined for a 120-mile reach of the Delaware River from the confluence of the East Branch Delaware River and the West Branch Delaware River at Hancock, N.Y. to the Delaware Water Gap. Dye studies were conducted at the 85-95 percent and the 25-30 percent...
Verification of a national water data base using a geographic information system
H.E. Harrison
1994, Open-File Report 94-51
The National Water Data Exchange (NAWDEX) was developed to assist users of water-resource data in the identification, location, and acquisition of data. The Master Water Data Index (MWDI) of NAWDEX currently indexes the data collected by 423 organizations from nearly 500,000 sites throughout the United Stales. The utilization of new...
Total water withdrawals in Mississippi, 1990
P.M. Johnson
1994, Open-File Report 93-375
During 1990, the amount of water withdrawn from ground- and surface-water sources in Mississippi was about 3,600 Mgal/d (million gallons per day). Of this amount, 91 percent, or 3,300 Mgal/d, was withdrawn from freshwater sources. Of the total freshwater withdrawals, about 82 percent, or 2,700 Mgal/d, was withdrawn from ground-water...
Effects of agricultural land-management practices on water quality in northeastern Guilford County, North Carolina, 1985-90
D.A. Harned
1994, Open-File Report 94-60
The effects of different agricultural land-management practices on sediment, nutrients, and selected pesticides in surface water, and on nutrients and pesticides in ground water were studied in four small basins in the Piedmont of North Carolina. The basins included two adjacent basins in row-crop fields, a mixed land-use basin, and...
Plan of study to determine the effect of changes in herbicide use on herbicide concentrations in Midwestern streams, 1989-94
Donald A. Goolsby, Laurie L. Boyer, William A. Battaglin
1994, Open-File Report 94-347
An approach was developed to determine if recent changes in the use of herbicides has affected herbicide concentrations in Midwestern streams. This approach also provides a plan to determine if the abnormally high rainfall and flooding in 1993 has an effect on nitrate concentrations in 1994 in streams that flooded...
Selected ground-water data for Yucca Mountain region, southern Nevada and eastern California, through December 1992
Richard J. La Camera, Craig L. Westenburg
1994, Open-File Report 94-54
Tne U.S. Geological Survey. in support of the U.S. Department of Energy, Yucca Mountain Site- Characterization Project, collects, compiles, and summarizes water-resource data in the Yucca Mountain region. The data are collected to document the historical and current condition of ground-water resources, to detect and document changes in those resources...
Methods for estimating streamflow at mountain fronts in southern New Mexico
S. D. Waltemeyer
1994, Water-Resources Investigations Report 93-4213
The infiltration of streamflow is potential recharge to alluvial-basin aquifers at or near mountain fronts in southern New Mexico. Data for 13 streamflow-gaging stations were used to determine a relation between mean annual stream- flow and basin and climatic conditions. Regression analysis was used to develop an equation that can...
Measurements of leakage from Lake Michigan through three control structures near Chicago, Illinois, April-October 1993
K. A. Oberg, A.R. Schmidt
1994, Water-Resources Investigations Report 94-4112
A total of 213 measurements of leakage were made at three control structures near Chicago, Ill.--the Chicago River Controlling Works (CRCW), Thomas J. O'Brien Lock and Dam (O'Brien), and Wilmette Pumping Station (Wilmette)--using acoustic Doppler current profilers (ADCP's) and dye-dilution techniques. The CRCW consists of the Chicago Lock and two...
Effect of the restricted use of phosphate detergent and upgraded wastewater-treatment facilities of water quality in the Chattahoochee River near Atlanta, Georgia
D. J. Wangsness, E. A. Frick, G. R. Buell, J.C. DeVivo
1994, Open-File Report 94-99
Data compiled for the six largest waste-water treatment facilities in Metropolitan Atlanta, Georgia, indicate about an 83-percent reduction in the phosphorus load discharged to the Chattahoochee River from 1988 to 1993 because of restricted use of phosphate detergents and upgraded treatment of municipal wastewater. This reduction resulted in about a...
Factors affecting accuracy of slope-area discharge determination of the September 1992 flood in Raven Fork, Western North Carolina
W. Harold Eddins, Thomas J. Zembrzuski Jr.
1994, Conference Paper, Proceedings - National Conference on Hydraulic Engineering
For the flood of September 10, 1992, in Raven Fork, Swain County, North Carolina, a peak discharge of 460 cubic meters per second was computed by using the slope-area method. Accuracy of this determination depends on suitability of the selected reach and, in particular, selection of Manning's roughness coefficients, interpretation...
Water resources data, Florida, water year 1993; Volume 3A. Southwest Florida surface water
J.E. Coffin, W.L. Fletcher
1994, Water Data Report FL-93-3A
The Water Resources Division of the U.S. Geological Survey, in cooperation with local, State, and Federal agencies, obtains a large amount of data pertaining to the water resources of Florida each water year. These data, accumulated during many water years, constitute a valuable data base for developing an improved understanding...