Sediment deposition and erosion in south San Francisco Bay, California from 1956 to 2005
Bruce Jaffe, Amy C. Foxgrover
2006, Open-File Report 2006-1287
Sediment deposition and erosion in South San Francisco Bay from 1956 to 2005 was studied by comparing bathymetric surveys made in 1956, 1983, and 2005. From 1956 to 1983, the region was erosional. In contrast, from 1983 to 2005, the region was depositional. Analysis of subregions defined by depth, morphology...
Interferograms showing land subsidence and uplift in Las Vegas Valley, Nevada, 1992-99
Michael T. Pavelko, Jorn Hoffmann, Nancy A. Damar
2006, Scientific Investigations Report 2006-5218
The U.S. Geological Survey, in cooperation with the Nevada Department of Conservation and Natural Resources-Division of Water Resources and the Las Vegas Valley Water District, compiled 44 individual interferograms and 1 stacked interferogram comprising 29 satellite synthetic aperture radar acquisitions of Las Vegas Valley, Nevada, from 1992 to 1999. The...
Evaluation of well-purging effects on water-quality results for samples collected from the eastern Snake River Plain aquifer underlying the Idaho National Laboratory, Idaho
LeRoy L. Knobel
2006, Scientific Investigations Report 2006-5232
This report presents qualitative and quantitative comparisons of water-quality data from the Idaho National Laboratory, Idaho, to determine if the change from purging three wellbore volumes to one wellbore volume has a discernible effect on the comparability of the data. Historical water-quality data for 30 wells were visually compared to...
Hydrology, description of computer models, and evaluation of selected water-management alternatives in the San Bernardino area, California
Wesley R. Danskin, Kelly R. McPherson, Linda R. Woolfenden
2006, Open-File Report 2005-1278
The San Bernardino area of southern California has complex water-management issues. As an aid to local water managers, this report provides an integrated analysis of the surface-water and ground-water systems, documents ground-water flow and constrained optimization models, and provides seven examples using the models to better understand and manage water...
Results of analyses of the fungicide Chlorothalonil, its degradation products, and other selected pesticides at 22 surface-water sites in five Southern states, 2003-04
Elisabeth A. Scribner, James L. Orlando, William A. Battaglin, Mark W. Sandstrom, Kathryn Kuivila, Michael T. Meyer
2006, Open-File Report 2006-1207
In accordance with the mission of the U.S. Geological Survey (USGS) Toxic Substances Hydrology Program, a pesticide study was conducted during 2003–04 to determine the occurrence of the fungicide chlorothalonil and its degradation products at 22 surface-water sites in five Southern States. Water-quality samples were collected during the peanut-growing season...
Instream flow characterization of Upper Salmon River basin streams, central Idaho, 2005
Terry R. Maret, Jon Hortness, Douglas S. Ott
2006, Scientific Investigations Report 2006-5230
Anadromous fish populations in the Columbia River Basin have plummeted in the last 100 years. This severe decline led to Federal listing of Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) stocks as endangered or threatened under the Endangered Species Act (ESA) in the 1990s. Historically, the upper Salmon...
Preliminary integrated geologic map databases for the United States: Digital data for the generalized bedrock geologic map, Yukon Flats region, east-central Alaska
Alison B. Till, Julie A. Dumoulin, Jeffrey D. Phillips, Richard G. Stanley, Jessie Crews
2006, Open-File Report 2006-1304
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Water resources data, Florida, water year 2005Volume 2B: South Florida ground water
S. Prinos, R. Irvin, M. Byrne
2006, Water Data Report FL-05-2B
Water resources data for 2005 water year in Florida consists of continuous or daily discharge for 429 streams, periodic discharge for 9 streams, continuous or daily stage for 218 streams, periodic stage for 5 stream, peak discharge for 28 streams, and peak stage for 28 streams, continuous or daily elevations...
Concentrations, and estimated loads and yields of nutrients and suspended sediment in the Little River basin, Kentucky, 2003-04
Angela S. Crain
2006, Scientific Investigations Report 2006-5204
Nutrients, primarily nitrogen and phosphorus compounds, naturally occur but also are applied to land in the form of commercial fertilizers and livestock waste to enhance plant growth. Concentrations, estimated loads and yields, and sources of nitrite plus nitrate, total phosphorus, and orthophosphate were evaluated in streams of the Little River...
Audiomagnetotelluric data from Spring, Cave, and Coyote Spring Valleys, Nevada
Darcy McPhee, Bruce A. Chuchel, Louise Pellerin
2006, Open-File Report 2006-1164
Audiomagnetotelluric (AMT) data along four profiles in Spring, Cave, and Coyote Spring Valleys are presented here. The AMT method is used to estimate the electrical resistivity of the earth over depth ranges of a few meters to greater than one kilometer. This method is a valuable tool for revealing subsurface...
Invasive species and climate change
Beth A. Middleton
2006, Open-File Report 2006-1153
Invasive species challenge managers in their work of conserving and managing natural areas and are one of the most serious problems these managers face. Because invasive species are likely to spread in response to changes in climate, managers may need to change their approaches to invasive species management accordingly....
Thematic mapper-derived mineral distribution maps of Idaho, Nevada, and western Montana
Gary L. Raines
2006, Data Series 185
This report provides mineral distribution maps based on TM spectral information of minerals commonly associated with hydrothermal alteration in Nevada, Idaho, and western Montana. The product of the processing is provided as four ESRI GRID files with 30 m resolution by state. UTM Zone 11 projection is used for Nevada...
Base-flow yields of watersheds in the Berkeley County area, West Virginia
Ronald D. Evaldi, Katherine S. Paybins
2006, Data Series 216
Base-flow yields at approximately 50 percent of the annual mean ground-water recharge rate were estimated for watersheds in the Berkeley County area, W.Va. These base-flow yields were determined from two sets of discharge measurements made July 25-28, 2005, and May 4, 2006. Two sections of channel along Opequon Creek had...
Biomonitoring of Environmental Status and Trends (BEST) Program: Environmental contaminants, health indicators, and reproductive biomarkers in fish from the Colorado River basin
Jo Ellen Hinck, Vicki Blazer, Nancy D. Denslow, Timothy S. Gross, Kathy R. Echols, Anne P. Davis, Tom W. May, Carl E. Orazio, James J. Coyle, Donald E. Tillitt
2006, Scientific Investigations Report 2006-5163
Seven fish species were collected from 14 sites on rivers in the Colorado River Basin (CDRB) from August to October 2003. Spatial trends in the concentrations of accumulative contaminants were documented and contaminant effects on the fish were assessed. Sites were located on the mainstem of the Colorado River and...
Preliminary integrated geologic map databases for the United States: Digital data for the geology of southeast Alaska
George E. Gehrels, Henry C. Berg
2006, Open-File Report 2006-1290
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the lower Yukon River region, Alaska
Water Resources Division, U.S. Geological Survey
2006, Open-File Report 2006-1292
The growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance bedrock geologic map for the northern Alaska peninsula area, southwest Alaska
Water Resources Division, U.S. Geological Survey
2006, Open-File Report 2006-1303
he growth in the use of Geographic Information Systems (GIS) has highlighted the need for digital geologic maps that have been attributed with information about age and lithology. Such maps can be conveniently used to generate derivative maps for manifold special purposes such as mineral-resource assessment, metallogenic studies, tectonic studies,...
Evaluation of baseline ground-water conditions in the Mosteiros, Ribeira Paul, and Ribeira Fajã Basins, Republic of Cape Verde, West Africa, 2005-06
Victor M. Heilweil, John D. Earle, Jay R. Cederberg, Mickey M. Messer, Brent E. Jorgensen, Ingrid M. Verstraeten, Miguel A. Moura, Arrigo Querido, Spencer, Tatiana Osorio
2006, Scientific Investigations Report 2006-5207
This report documents current (2005-06) baseline ground-water conditions in three basins within the West African Republic of Cape Verde (Mosteiros on Fogo, Ribeira Paul on Santo Antão, and Ribeira Fajã on São Nicolau) based on existing data and additional data collected during this study. Ground-water conditions (indicators) include ground-water levels,...
Estimate of ground water in storage in the Great Lakes basin, United States, 2006
William F. Coon, Rodney A. Sheets
2006, Scientific Investigations Report 2006-5180
Hydrogeologic data from Regional Aquifer System Analyses (RASA) studies by the U.S. Geological Survey in the Great Lakes Basin, United States, during 1978-95, were compiled and used to estimate the total volume of water that is stored in the many aquifers of the basin. These studies focused on six regional...
An update of the distribution of selected radiochemical and chemical constituents in perched ground water, Idaho National Laboratory, Idaho, Emphasis 1999-2001
Linda C. Davis
2006, Scientific Investigations Report 2006-5236
Radiochemical and chemical wastes generated at facilities at the Idaho National Laboratory (INL) were discharged since 1952 to infiltration ponds at the Reactor Technology Complex (RTC) (known as the Test Reactor Area [TRA] until 2005), and the Idaho Nuclear Technology and Engineering Center (INTEC) and buried at the Radioactive Waste...
Preliminary volcano-hazard assessment for the Emmons Lake volcanic center, Alaska
Christopher Waythomas, Thomas P. Miller, Margaret T. Mangan
2006, Scientific Investigations Report 2006-5248
The Emmons Lake volcanic center is a large stratovolcano complex on the Alaska Peninsula near Cold Bay, Alaska. The volcanic center includes several ice- and snow-clad volcanoes within a nested caldera structure that hosts Emmons Lake and truncates a shield-like ancestral Mount Emmons edifice. From northeast to southwest, the main...
Tephra deposits for the past 2600 years from Irazú Volcano, Costa Rica: Chapter 12 in Volcanic hazards in Central America
S.K. Clark, M. K. Reagan, D.A. Trimble
William I. Rose, Gregg J.S. Bluth, Michael J. Carr, John W. Ewert, Lina C. Patino, James W. Vallance, editor(s)
2006, Report, Volcanic hazards in Central America: Geological Society of America Special Paper 412
No abstract available....
Volcanic hazards in Central America
William I. Rose, Gregg J.S. Bluth, Michael J. Carr, John W. Ewert, Lina C. Patino, James W. Vallance, editor(s)
2006, Report, Geological Society of America Special Paper 412
This volume is a sampling of current scientific work about volcanoes in Central America with specific application to hazards. The papers reflect a variety of international and interdisciplinary collaborations and employ new methods. The book will be of interest to a broad cross section of scientists, especially...
User's manual for the Graphical Constituent Loading Analysis System (GCLAS)
G. F. Koltun, Michael Eberle, J. R. Gray, G.D. Glysson
2006, Techniques and Methods 4-C1
This manual describes the Graphical Constituent Loading Analysis System (GCLAS), an interactive cross-platform program for computing the mass (load) and average concentration of a constituent that is transported in stream water over a period of time. GCLAS computes loads as a function of an equal-interval streamflow time series and an...
Historical record of Landsat global coverage
Samuel Goward, Terry Arvidson, Darrel Williams, John Faundeen, James Irons, Shannon Franks
2006, Photogrammetric Engineering and Remote Sensing (72) 1155-1169
The long-term, 34+ year record of global Landsat remote sensing data is a critical resource to study the Earth system and human impacts on this system. The National Satellite Land Remote Sensing Data Archive (NSLRSDA) is charged by public law to: “maintain a permanent, comprehensive Government archive of global Landsat...
