Merged aeroradiometric data for Alaska: A web site for distribution of gridded data and plot files
R. W. Saltus, F. E. Riggle, B. T. Clark, P. L. Hill
1999, Open-File Report 99-16
The National Uranium Resource Evaluation (NURE) program was conducted by the U.S. Government between 1974 and 1983. The NURE program was administered by the Grand Junction, CO, office of the Department of Energy. The program included airborne gamma-ray spectrometry and magnetic data collection as well as extensive geochemical sample collection...
Geologic map of the Hart Peak quadrangle, California and Nevada: A digital database
Jane E. Nielson, Ryan D. Turner, David R. Bedford
1999, Open-File Report 99-34
The Hart Peak 1:24,000-scale quadrangle is located about 12 km southwest of Searchlight, Nevada, comprehending the eastern part of the Castle Peaks, California, and most of the Castle Mountains and the northwestern part of the Piute Range, in California and Nevada. The Castle Peaks area constitutes the northeasternmost part of...
Determination of chemical-constituent loads during base-flow and storm-runoff conditions near historical mines in Prospect Gulch, upper Animas River watershed, southwestern Colorado
Laurie Wirt, K.J. Leib, D. J. Bove, M.A. Mast, J. B. Evans, G.P. Meeker
1999, Open-File Report 99-159
Prospect Gulch is a major source of iron, aluminum, zinc, and other metals to Cement Creek. Information is needed to prioritize remediation and develop strategies for cleanup of historical abandoned mine sites in Prospect Gulch. Chemical-constituent loads were determined in Prospect Gulch, a high-elevation alpine stream in southwestern Colorado that is affected by natural...
Geologic map of the East of Grotto Hills quadrangle, California: A digital database
Jane E. Nielson, David R. Bedford
1999, Open-File Report 99-35
The East of Grotto Hills 1:24,000-scale quadrangle of California lies west of the Colorado River about 30 km southwest of Searchlight, Nevada, near the boundary between the northern and southern parts of the Basin and Range Province. The quadrangle includes the eastern margin of Lanfair Valley, the southernmost part of...
Trends in base flows and extreme flows in the Beaver Kill Basin, Catskill Mountains, New York, 1915-94
Barry P. Baldigo
1999, Open-File Report 98-65
Long-term records from five streamflow-gaging stations within and near the 300-square mile Beaver Kill Basin were analyzed to determine whether construction and presence of New York State Route 17 (NY 17), which was completed in the late 1960's, could have altered hydrologic processes in the basin and thereby adversely affected...
Documentation for HYDMOD; a program for extracting and processing time-series data from the U.S. Geological Survey's modular three-dimensional finite-difference ground-water flow model
Randall T. Hanson, Stanley A. Leake
1999, Open-File Report 98-564
This report presents a FORTRAN computer program that generates simulated time-series data as output from the U.S. Geological Survey Modular Finite-Difference Ground-Water Flow Model at user-specified point locations or a collection of points that compose a profile through the modeled region. The program can save time-series data at user-specified locations...
Pool 13 drawdown: Predicting success rates and affected areas
James T. Rogala, Joseph H. Wlosinski, Kevin J. Landwehr
1999, Long Term Resource Monitoring Program Technical Report 99-T002
The likelihood of 1- or 2-foot drawdowns, and the area affected by such alternative drawdowns, was estimated for Pool 13 on the Upper Mississippi River. Minimum water surface (elevation) requirements were compared to computed water surface profiles to determine a critical low flow that would allow a navigation channel 400...
Vegetative resistance to flow in south Florida: Summary of vegetation sampling at sites NESRS3 and P33, Shark River Slough, November, 1996
Virginia Carter, Justin T. Reel, Nancy B. Rybicki, Henry A. Ruhl, Patricia T. Gammon, Jonathan K. Lee
1999, Open-File Report 99-218
The U.S. Geological Survey is one of many agencies participating in the effort to restore the South Florida Everglades. We are sampling and characterizing the vegetation at selected sites in the Everglades as part of a study to quantify vegetative flow resistance. The objectives of the vegetation sampling are (1)...
Vegetative resistance to flow in South Florida: Summary of vegetation sampling at sites NESRS3 and P33, Shark River Slough, April 1996
Virginia Carter, Henry A. Ruhl, Nancy B. Rybicki, Justin T. Reel, Patricia T. Gammon
1999, Open-File Report 99-187
The U.S. Geological Survey is one of many agencies participating in the effort to restore the south Florida Everglades. We are sampling and characterizing the vegetation at selected sites in the Everglades as part of a study to quantify vegetative flow resistance. The objectives of the vegetative sampling are (1)...
Results of time-domain electromagnetic soundings in Everglades National Park, Florida
D.V. Fitterman, Maria Deszcz-Pan, C.E. Stoddard
1999, Open-File Report 99-426
This report describes the collection, processing, and interpretation of time-domain electromagnetic soundings from Everglades National Park. The results are used to locate the extent of seawater intrusion in the Biscayne aquifer and to map the base of the Biscayne aquifer in regions where well coverage is sparse. The data show...
Ground-water flow paths and traveltime to three small embayments within the Peconic Estuary, eastern Suffolk County, New York
Christopher Schubert
1999, Water-Resources Investigations Report 98-4181
The Peconic Estuary, at the eastern end of Long Island, has been plagued by a recurrent algal bloom that has caused the severe decline of local marine resources. Although the onset, duration, and cessation of the bloom remain unpredictable, ground-water discharge has been shown to affect surface-water quality in the...
Development of a comprehensive watershed model applied to study stream yield under drought conditions
S.P. Perkins, M. Sophocleous
1999, Groundwater (37) 418-426
We developed a model code to simulate a watershed's hydrology and the hydraulic response of an interconnected stream-aquifer system, and applied the model code to the Lower Republican River Basin in Kansas. The model code links two well-known computer programs: MODFLOW (modular 3-D flow...
Volcanogenic Sulfur on Earth and Io: Composition and Spectroscopy
J.S. Kargel, P. Delmelle, D.B. Nash
1999, Icarus (142) 249-280
The causes of Io's variegated surface, especially the roles of sulfur, and the geochemical history of sulfur compounds on Io are not well understood. Suspecting that minor impurities in sulfur might be important, we have investigated the major and trace element chemistry and spectroscopic reflectance of natural sulfur from a...
Estimation of potential runoff-contributing areas in the Kansas-Lower Republican River basin, Kansas
Kyle E. Juracek
1999, Water-Resources Investigations Report 99-4089
Digital soils and topographic data were used to estimate and compare potential runoff-contributing areas for 19 selected subbasins representing soil, slope, and runoff variability within the Kansas-Lower Republican (KLR) River Basin. Potential runoff-contributing areas were estimated separately and collectively for the processes of infiltration-excess and saturation-excess overland flow using a...
The effect of temperature on experimental and natural chemical weathering rates of granitoid rocks
A. F. White, A.E. Blum, T.D. Bullen, D.V. Vivit, M. Schulz, J. Fitzpatrick
1999, Geochimica et Cosmochimica Acta (63) 3277-3291
The effects of climatic temperature variations (5-35??C) on chemical weathering are investigated both experimentally using flow-through columns containing fresh and weathered granitoid rocks and for natural granitoid weathering in watersheds based on annual solute discharge. Although experimental Na and Si effluent concentrations are significantly higher in the fresh relative to...
Isotopic composition of water in a deep unsaturated zone beside a radioactive-waste disposal area near Beatty, Nevada
David A. Stonestrom, David E. Prudic, Robert G. Striegl
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
The isotopic composition of water in deep unsaturated zones is of interest because it provides information relevant to hydrologic processes and contaminant migration. Profiles of oxygen-18 (18O), deuterium (D), and tritium (3H) from a 110-meter deep unsaturated zone, together with data on the isotopic composition of ground water...
Overview of research on water, gas, and radionuclide transport at the Amargosa Desert Research Site, Nevada: A section in U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Brian J. Andraski, David A. Stonestrom
David W. Morganwalp, Herbert T. Buxton, editor(s)
1999, Report, U.S. Geological Survey Toxic Substances Hydrology Program: Proceedings of the technical meeting, Charleston, South Carolina, March 8-12, 1999: Volume 3 (Part C) (WRI 99-4018C)
Studies at the U.S. Geological Survey Amargosa Desert Research Site have focused on characterizing factors and processes that control transport and fate of contaminants in arid environments. This paper summarizes research results that have been published through 1998. Results have improved understanding of water and gas movement through a thick...
Carboniferous and older carbonate rocks: Lithofacies, extent, and reservoir quality: Chapter CC in The oil and gas resource potential of the Arctic National Wildlife Refuge 1002 area, Alaska
Julie A. Dumoulin
1999, Open-File Report 98-34-CC
Carboniferous and older carbonate rocks are potential hydrocarbon reservoir facies for four plays in the 1002 area of the Arctic National Wildlife Refuge. These rocks include several units in the pre-Carboniferous basement and the Carboniferous Lisburne Group. Data from exploratory wells west of the 1002 area, outcrops south of the...
Relations of surface-water quality to streamflow in the Atlantic Coastal, lower Delaware River, and Delaware Bay basins, New Jersey, water years 1976-93
Kathryn Hunchak-Kariouk, Debra E. Buxton, R. Edward Hickman
1999, Water-Resources Investigations Report 98-4244
Relations of water quality to streamflow were determined for 18 water-quality constituents at 28 surface-water-quality stations within the drainage area of the Atlantic Coastal, lower Delaware River, and Delaware Bay Basins for water years 1976-93. Surface-water-quality and streamflow data were evaluated for trends (through time) in constituent concentrations during high...
Complex effusive events at Kilauea as documented by the GOES satellite and remote video cameras
A.J.L. Harris, C.R. Thornber
1999, Bulletin of Volcanology (61) 382-395
GOES provides thermal data for all of the Hawaiian volcanoes once every 15 min. We show how volcanic radiance time series produced from this data stream can be used as a simple measure of effusive activity. Two types of radiance trends in these time series can be used to monitor...
Upper Klamath Lake Basin nutrient-loading study: Assessment of historic flows in the Williamson and Sprague rivers
John C. Risley, Antonius Laenen
1999, Water-Resources Investigations Report 98-4198
The Williamson River Basin, located in south-central Oregon, has a drainage area of approximately 3,000 square miles. The Sprague River, which flows into the Williamson River Basin, has a drainage area of 1,580 square miles. Together, the Williamson and Sprague Rivers supply about one-half of the inflow to Upper Klamath...
Oxygen isotopes of dissolved sulfate as a tool to distinguish natural and mining-related dissolved constituents
Winfield G. Wright, D. Kirk Nordstrom
1999, Report
Natural and mining-related dissolved-constituent concentrations need to be distinguished in a watershed affected by abandoned mines to prioritize subbasins for remediation and to assist with the establishment of water-quality standards. The oxygen isotopes of dissolved sulfate can be used to distinguish between natural and mining-related sources of dissolved constituents. Several...
Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States
Joseph S. Duval, Frederic E. Riggle
1999, Data Series 31
This publication contains images for the conterminous U.S. generated from geophysical data, software for displaying and analyzing the images, and software for displaying and examining the profile data from the aerial surveys flown as part of the National Uranium Resource Evaluation (NURE) Program of the U.S. Department of Energy. The...
Induced infiltration from the Rockaway River and water chemistry in a stratified-drift aquifer at Dover, New Jersey, with a section on modeling ground-water flow in the Rockaway River Valley
Joel E. Dysart, Stephen J. Rheaume, Angelo L. Kontis
1999, Water-Resources Investigations Report 96-4068
The vertical hydraulic conductivity per unit thickness (streambed leakance) of unconsolidated sediment immediately beneath the channel of the Rockaway River near a municipal well field at Dover, N.J., is between 0.2 and 0.6 feet per day per foot and is probably near the low end of this range. This estimate...
Water Resources Data Minnesota Water Year 1998
Water Resources Division, U.S. Geological Survey
1999, Water Data Report MN-98-1
Water Resources Division of the U.S. Geological Survey (USGS), in cooperation with State agencies, obtains a large amount of data pertaining to the water resources of Minnesota each water year. These data, accumulated during many years, constitute a valuable data base for developing an improved understanding of the water resources...
