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Geologic setting and water quality of selected basins in the active coal-mining areas of Ohio, 1989-91, with a summary of water quality for 1985-91
A. C. Sedam, D.S. Francy
1993, Water-Resources Investigations Report 93-4094
This report presents streamwater- and ground-water-quality data collected to characterize the baseline water quality for 21 drainage basins in the coal-mining region of eastern Ohio. The study area is mostly within the unglaciated part of eastern Ohio along the western edge of the Appalachian Plateaus Physiographic Province. The data collected...
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of low-level silver by graphite furnace atomic absorption spectrophotometry
D.L. Damrau
1993, Open-File Report 93-416
Increased awareness of the quality of water in the United States has led to the development of a method for determining low levels (0.2-5.0 microg/L) of silver in water samples. Use of graphite furnace atomic absorption spectrophotometry provides a sensitive, precise, and accurate method for determining low-level silver in samples...
Hydro-Climatic Data Network (HCDN) Streamflow Data Set, 1874-1988
James Richard Slack, Alan M. Lumb, Jurate Maciunas Landwehr
1993, Water-Resources Investigations Report 93-4076
The potential consequences of climate change to continental water resources are of great concern in the management of those resources. Critically important to society is what effect fluctuations in the prevailing climate may have on hydrologic conditions, such as the occurrence and magnitude of floods or droughts and the seasonal...
Simulating the variable-source-area concept of streamflow generation with the watershed model TOPMODEL
D.M. Wolock
1993, Water-Resources Investigations Report 93-4124
This report describes TOPMODEL, which is a physically based watershed model that simulates the variable-source-area concept of streamflow generation. The report describes the theoretical background, model equations, methods to determine parameter values, Fortran computer code, and an example interactive simulation. Using TOPMODEL requires specification of soils and topographic parameters, watershed...
Water quality of Corydon Reservoir before implementation of agricultural best-management practices in the basin, Wayne County, Iowa, September 1990 to September 1991
S. J. Kalkhoff
1993, Water-Resources Investigations Report 93-4099
A hydrologic investigation to define the water quality of Corydon Reservoir before implementation of agricultural best-management practices in the basin was conducted from September 1990 to September 1991. Runoff from the 1,680-acre basin is the primary source of water to the 58-acre reservoir. Current water quality of the reservoir is...
Map showing depth to basement in the deep-sea basins of the Pacific continental margin, Strait of Juan de Fuca to Cape Mendocino
J.V. Gardner, D.A. Cacchione, D.E. Drake, B. D. Edwards, M.E. Field, M. A. Hampton, Herman A. Karl, Neil H. Kenyon, D.G. Masson, D. S. McCulloch, M. S. Grim
1993, IMAP 2091-B
The U.S. Geological Survey conducted a series of cruises, EEZSCAN 84 (EEZ-SCAN 84 Scientific Staff, 1986), to collect reconnaissance data on the newly proclaimed Exclusive Economic Zone (EEZ), the area out to 200 nautical miles from the coastline of the United States. The cruises systematically surveyed the entire conterminous United...
Hydrologic and mass-movement hazards near McCarthy, Wrangell-St. Elias National Park and Preserve, Alaska
S. H. Jones, R. L. Glass
1993, Water-Resources Investigations Report 93-4078
At the confluence of McCarthy Creek and the Kennicott River, about 1 mile from the terminus of Kennicott Glacier, Alaska, McCarthy Creek and Kennicott River basins are prone to several natural hazards including floods; formation and failure of natural dams; stream erosion and sediment deposi- tion; snow avalanches; aufeis; and...