Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

46734 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 947, results 23651 - 23675

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Remote sensing characterization of the Animas River watershed, southwestern Colorado, by AVIRIS imaging spectroscopy
J.B. Dalton, D. J. Bove, C.S. Mladinich
2005, Scientific Investigations Report 2004-5203
Visible-wavelength and near-infrared image cubes of the Animas River watershed in southwestern Colorado have been acquired by the Jet Propulsion Laboratory's Airborne Visible and InfraRed Imaging Spectrometer (AVIRIS) instrument and processed using the U.S. Geological Survey Tetracorder v3.6a2 implementation. The Tetracorder expert system utilizes a spectral reference library containing more...
Hydrogeology and quality of ground water in the upper Arkansas River basin from Buena Vista to Salida, Colorado, 2000-2003
Kenneth R. Watts
2005, Scientific Investigations Report 2005-5179
The upper Arkansas River Basin between Buena Vista and Salida, Colorado, is a downfaulted basin, the Buena Vista-Salida structural basin, located between the Sawatch and Mosquito Ranges. The primary aquifers in the Buena Vista-Salida structural basin consist of poorly consolidated to unconsolidated Quaternary-age alluvial and glacial deposits and Tertiary-age basin-fill...
Water availability for the Western United States--Key scientific challenges
Mark Theodore Anderson, Lloyd H. Woosley Jr.
2005, Circular 1261
In the Western United States, the availability of water has become a serious concern for many communities and rural areas. Near population centers, surface-water supplies are fully appropriated, and many communities are dependent upon ground water drawn from storage, which is an unsustainable strategy. Water of acceptable quality is increasingly...
Occurrence of selected pharmaceutical and non-pharmaceutical compounds, and stable hydrogen and oxygen isotope ratios in a riverbank filtration study, Platte River, Nebraska, 2002 to 2005, Volume 2
J. R. Vogel, L. B. Barber, E. T. Furlong, T.B. Coplen, Ingrid M. Verstraeten, M. T. Meyer
2005, Data Series 141
This document is the second volume of a data series report that describes the data collected during a study conducted during 2001 through 2005 by the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and the City of Lincoln, at an established riverbank-filtration well field with horizontal...
Analysis of pesticides in surface water and sediment from Yolo Bypass, California, 2004-2005
Kelly L. Smalling, James L. Orlando, Kathryn Kuivila
2005, Scientific Investigations Report 2005-5220
Inputs to the Yolo Bypass are potential sources of pesticides that could impact critical life stages of native fish. To assess the direct inputs during inundation, pesticide concentrations were analyzed in water, in suspended and bed-sediment samples collected from six source watersheds to the Yolo Bypass, and from three sites...
Hydrogeologic setting and conceptual hydrologic model of the Spring Creek Basin, Centre County, Pennsylvania, June 2005
John W. Fulton, Edward H. Koerkle, Steven D. McAuley, Scott A. Hoffman, Linda F. Zarr
2005, Scientific Investigations Report 2005-5091
The Spring Creek Basin, Centre County, Pa., is experiencing some of the most rapid growth and development within the Commonwealth. This trend has resulted in land-use changes and increased water use, which will affect the quantity and quality of stormwater runoff, surface water, ground water, and aquatic resources within the...
40Ar/39Ar geochronology of hypabyssal igneous rocks in the Maranon Basin of Peru - A record of thermal history, structure, and alteration
L.M. Prueher, R. Erlich, L.W. Snee
2005, Scientific Investigations Report 2005-5132
Hypabyssal andesites and dacites from the Balsapuerto Dome in the Mara?on Basin of Peru record the thermal, tectonic, and alteration history of the area. The Mara?on Basin is one of 19 sub-Andean foreland basins. The hypabyssal rocks in the Balsapuerto Dome are one of four known occurrences of subvolcanic rocks...
Surface-Water and Ground-Water Resources of Kendall County, Illinois
Robert T. Kay, P.C. Mills, Jennifer L. Hogan, Terri Arnold
2005, Scientific Investigations Report 2005-5122
Water-supply needs in Kendall County, in northern Illinois, are met exclusively from ground water derived from glacial drift aquifers and bedrock aquifers open to Silurian, Ordovician, and Cambrian System units. As a result of population growth in Kendall County and the surrounding area, water use has increased from about 1.2...
Quantification of fish habitat in selected reaches of the Marmaton and Marais des Cygnes Rivers, Missouri
David C. Heimann, Joseph M. Richards, Shannon K. Brewer, Richard D. Norman
2005, Scientific Investigations Report 2005-5180
The U.S. Geological Survey, in cooperation with the Missouri Department of Conservation, undertook a study to quantify fish habitat by using relations between streamflow and the spatial and temporal distributions of fish habitat at five sites in the Marmaton and Marais des Cygnes Rivers in western Missouri. Twenty-six fish habitat...
Water-quality trend analysis and sampling design for streams in the Red River of the North Basin, Minnesota, North Dakota, and South Dakota, 1970-2001
Aldo V. Vecchia
2005, Scientific Investigations Report 2005-5224
The Bureau of Reclamation is considering several alternatives to meet the future municipal, rural, and industrial water-supply needs in the Red River of the North (Red River) Basin, and an environmental impact statement is being prepared to evaluate the potential effects of the various alternatives on the water quality and...
South San Francisco Bay tidal marsh vegetation and elevation surveys-Corkscrew Marsh, Bird Island, and Palo Alto Baylands, California, 1983
James L. Orlando, Judy Z. Drexler, Kent G. Dedrick
2005, Data Series 134
Changes in the topography and ecology of the San Francisco Bay Estuary ('Estuary') during the past 200 years have resulted in the loss of nearly 80 percent of the historical salt marsh in the region. Currently, numerous projects are being undertaken by federal, state, and local governments in an attempt...
Hydrologic response in karstic-ridge wetlands to rainfall and evapotranspiration, central Florida, 2001-2003
Leel Knowles Jr., G. G. Phelps, Sandra L. Kinnaman, Edward R. German
2005, Scientific Investigations Report 2005-5178
Two internally drained karstic wetlands in central Florida-Boggy Marsh at the Hilochee Wildlife Management Area and a large unnamed wetland at the Lyonia Preserve-were studied during 2001-03 to gain a better understanding of the net-recharge function that these wetlands provide, the significance of exchanges with ground water with regard to...
Characterization of dissolved and particulate natural organic matter (NOM) in Neversink Reservoir, New York
Robert L. Wershaw, Jerry A. Leenheer, Larry G. Cox
2005, Scientific Investigations Report 2005-5108
Natural organic matter (NOM) was isolated from the water of the Neversink Reservoir, part of the New York City water supply, located in the Catskill Mountains of New York. The NOM was fractionated into the following nine different fractions by the isolation procedure: (1) coarse particulates, (2) fine-particulate organics, (3)...
Assessment of a model of forest dynamics under contrasting climate and disturbance regimes in the Pacific Northwest [FORCLIM]
Richard T. Busing, Allen M. Solomon
2005, Scientific Investigations Report 2005-5242
An individual-based model of forest dynamics (FORCLIM) was tested for its ability to simulate forest composition and structure in the Pacific Northwest region of North America. Simulation results across gradients of climate and disturbance were compared to forest survey data from several vegetation zones in western Oregon. Modelled patterns of...
Occurrence and distribution of pesticide compounds in surface water of the Santa Ana basin, California, 1998-2001
Robert Kent, Kenneth Belitz, Andrea J. Altmann, Michael T. Wright, Gregory O. Mendez
2005, Scientific Investigations Report 2005-5203
A study of the occurrence and distribution of pesticide compounds in surface water of the highly urbanized Santa Ana Basin, California, was done as part of the U.S. Geological Survey's National Water-Quality Assessment Program (NAWQA). One-hundred and forty-eight samples were collected from 23 sites, and analyzed for pesticide compounds...
Calculation of area and volume for the south part of Great Salt Lake, Utah
Robert L. Baskin
2005, Open-File Report 2005-1327
The U.S. Geological Survey, in cooperation with the Utah Department of Natural Resources, Division of Wildlife Resources, collected bathymetric data for the south part of Great Salt Lake during 2002-04 using a single-beam, high-definition fathometer and real-time differential global positioning system. About 7.6 million depth measurements were collected along more...
Bathymetric map of the south part of Great Salt Lake, Utah, 2005
Robert L. Baskin, David V. Allen
2005, Scientific Investigations Map 2894
The U.S. Geological Survey, in cooperation with the Utah Department of Natural Resources, Division of Wildlife Resources, collected bathymetric data for the south part of Great Salt Lake during 2002–04 using a single beam, high-definition fathometer and real-time differential global positioning system. Approximately 7.6 million depth readings were collected along...
Age and quality of ground water and sources of nitrogen in the surficial aquifers in Pumpkin Creek Valley, western Nebraska, 2000
G. V. Steele, J. C. Cannia, S. S. Sibray, V. L. McGuire
2005, Scientific Investigations Report 2005-5157
Ground water is the source of drinking water for the residents of Pumpkin Creek Valley, western Nebraska. In this largely agricultural area, shallow aquifers potentially are susceptible to nitrate contamination. During the last 10 years, ground-water levels in the North Platte Natural Resources District have declined and contamination has become...