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Page 2146, results 53626 - 53650

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Not all publications have extents, not all extents are completely accurate
Resistivity profiling for mapping gravel layers that may control contaminant migration at the Amargosa Desert Research Site, Nevada
Jeffrey E. Lucius, Jared D. Abraham, Bethany L. Burton
2008, Scientific Investigations Report 2008-5091
Gaseous contaminants, including CFC 113, chloroform, and tritiated compounds, move preferentially in unsaturated subsurface gravel layers away from disposal trenches at a closed low-level radioactive waste-disposal facility in the Amargosa Desert about 17 kilometers south of Beatty, Nevada. Two distinct gravel layers are involved in contaminant transport: a thin, shallow...
Geologic map of the Denver West 30' x 60' quadrangle, north-central Colorado
Karl S. Kellogg, Ralph R. Shroba, Bruce Bryant, Wayne R. Premo
2008, Scientific Investigations Map 3000
The Denver West quadrangle extends east-west across the entire axis of the Front Range, one of numerous uplifts in the Rocky Mountain region in which Precambrian rocks are exposed. The history of the basement rocks in the Denver West quadrangle is as old as 1,790 Ma. Along the east side...
Channel Evolution on the Lower Elwha River, Washington, 1939-2006
Amy E. Draut, Joshua B. Logan, Randall E. McCoy, Michael McHenry, Jonathan A. Warrick
2008, Scientific Investigations Report 2008-5127
Analyses of historical aerial photographs of the lower Elwha River, Clallam County, Washington, reveal rates and patterns of channel change in this dammed, anabranching river between 1939 and 2006. Absolute positional changes of the active-floodplain margins, which commonly exceeded 50 m over that interval, have exceeded 400 m locally. Annualized...
Regression Analysis of Stage Variability for West-Central Florida Lakes
Laura A. Sacks, Donald L. Ellison, Amy Swancar
2008, Scientific Investigations Report 2008-5147
The variability in a lake's stage depends upon many factors, including surface-water flows, meteorological conditions, and hydrogeologic characteristics near the lake. An understanding of the factors controlling lake-stage variability for a population of lakes may be helpful to water managers who set regulatory levels for lakes. The goal of this...
Potential effects of a scenario earthquake on the economy of southern California: Labor market exposure and sensitivity analysis to a magnitude 7.8 earthquake
Benson C. Sherrouse, D. J. Hester, Anne M. Wein
2008, Open-File Report 2008-1211
The Multi-Hazards Demonstration Project (MHDP) is a collaboration between the U.S. Geological Survey (USGS) and various partners from the public and private sectors and academia, meant to improve Southern California's resiliency to natural hazards (Jones and others, 2007). In support of the MHDP objectives, the ShakeOut Scenario was developed. It...
Water-chemistry data for selected springs, geysers, and streams in Yellowstone National Park, Wyoming, 2003-2005
James W. Ball, R. Blaine McCleskey, D. Kirk Nordstrom, JoAnn M. Holloway
2008, Open-File Report 2006-1339
Water analyses are reported for 157 samples collected from numerous hot springs, their overflow drainages, and Lemonade Creek in Yellowstone National Park (YNP) during 2003–2005. Water samples were collected and analyzed for major and trace constituents from ten areas of YNP including Terrace and Beryl Springs in the Gibbon Canyon...
Limnological Conditions in Lake William C. Bowen and Municipal Reservoir #1, Spartanburg County, South Carolina, August to September 2005, May 2006, and October 2006
Celeste A. Journey, Thomas A. Abrahamsen
2008, Open-File Report 2008-1268
The U.S. Geological Survey, in cooperation with the Spartanburg Water System, conducted three spatial surveys of the limnological conditions in Lake William C. Bowen (Lake Bowen) and Municipal Reservoir #1 (Reservoir #1), Spartanburg County, South Carolina, during August to September 2005, May 2006, and October 2006. The surveys were conducted...
Hydrochemical Regions of the Glacial Aquifer System, Northern United States, and Their Environmental and Water-Quality Characteristics
Terri Arnold, Kelly L. Warner, George E. Groschen, James P. Caldwell, Stephen J. Kalkhoff
2008, Scientific Investigations Report 2008-5015
The glacial aquifer system in the United States is a large (953,000 square miles) regional aquifer system of heterogeneous composition. As described in this report, the glacial aquifer system includes all unconsolidated geologic material above bedrock that lies on or north of the line of maximum glacial advance within the...
Total Mercury, Methylmercury, and Ancillary Water-Quality and Streamflow Data for Selected Streams in Oregon, Wisconsin, and Florida, 2002-06
Mark E. Brigham, Joseph W. Duris, Dennis A. Wentz, Daniel T. Button, Lia C. Chasar
2008, Data Series 341
Field and analytical methods, mercury and ancillary water-quality data, and associated quality-control data are reported for eight streams in Oregon, Wisconsin, and Florida from 2002 to 2006. The streams were sampled as part of a U.S. Geological Survey National Water-Quality Assessment Program study of mercury cycling, transport, and bioaccumulation in...
Bathymetric contour maps of lakes surveyed in Iowa in 2005
S. M. Linhart, K. D. Lund
2008, Scientific Investigations Map 3037
The U.S. Geological Survey, in cooperation with the Iowa Department of Natural Resources, conducted bathymetric surveys on seven lakes in Iowa during 2005 (Arrowhead Pond, Central Park Lake, Lake Keomah, Manteno Park Pond, Lake Miami, Springbrook Lake, and Yellow Smoke Lake). The surveys were conducted to provide the Iowa Department...
Shallow-conduit dynamics at Stromboli Volcano, Italy, imaged from waveform inversions
Bernard A. Chouet, Marcello Martini
2008, Geological Society of London Special Publications (307) 57-84
Modelling of Very-Long-Period (VLP) seismic data recorded during explosive activity at Stromboli in 1997 provides an image of the uppermost 1 km of its volcanic plumbing system. Two distinct dyke-like conduit structures are identified, each representative of explosive eruptions from two different vents located near the northern and southern perimeters...
Moderate Resolution Imaging Spectroradiometer (MODIS) Overview
Water Resources Division, U.S. Geological Survey
2008, Fact Sheet 2008-3061
The Moderate Resolution Imaging Spectroradiometer (MODIS) is an instrument that collects remotely sensed data used by scientists for monitoring, modeling, and assessing the effects of natural processes and human actions on the Earth's surface. The continual calibration of the MODIS instruments, the refinement of algorithms used to create higher-level products,...
Users Manual for the Geospatial Stream Flow Model (GeoSFM)
Guleid A. Artan, Kwabena Asante, Jodie Smith, Md Shahriar Pervez, Debbie Entenmann, James P. Verdin, James Rowland
2008, Open-File Report 2007-1440
The monitoring of wide-area hydrologic events requires the manipulation of large amounts of geospatial and time series data into concise information products that characterize the location and magnitude of the event. To perform these manipulations, scientists at the U.S. Geological Survey Center for Earth Resources Observation and Science (EROS), with...
White Sturgeon Passage at The Dalles Dam
Water Resources Division, U.S. Geological Survey
2008, Fact Sheet 2008-3081
Researchers at the USGS Western Fisheries Research Center's Columbia River Research Laboratory, working with the U.S. Army Corps of Engineers, sought to better understand upstream and downstream passage of white sturgeon at dams. A study at The Dalles Dam provided the opportunity to compare two fish ladders; one that passes...
Remote-controlled pan, tilt, zoom cameras at Kilauea and Mauna Loa Volcanoes, Hawai'i
Richard P. Hoblitt, Tim R. Orr, Frederic Castella, Peter F. Cervelli
2008, Scientific Investigations Report 2008-5129
Lists of important volcano-monitoring disciplines usually include seismology, geodesy, and gas geochemistry. Visual monitoring - the essence of volcanology - is usually not mentioned. Yet, observations of the outward appearance of a volcano provide data that is equally as important as that provided by the other disciplines. The eye was...
Amount and Percentage of Current Societal Assets in Areas on Kaua'i, Hawai'i, within the 1992 Hurricane 'Iniki Storm-Surge Inundation Zone
Nathan Wood
2008, Open-File Report 2008-1280
The Pacific Risk Management 'Ohana (PRiMO) is a network of partners and stakeholders involved in the development, delivery, and communication of risk management-related information, products, and services across the Pacific Ocean (National Oceanic and Atmospheric Administration Pacific Services Center, 2008). One PRiMO-related project is the NOAA National Climatic Data Center's...
Effectiveness of an alluvial wetland on improving ground-water quality in a municipal well field, Cedar Rapids, Iowa, 1998-2006
Douglas J. Schnoebelen
2008, Scientific Investigations Report 2008-5108
Nutrients and pesticides are water-quality topics of concern in Iowa. Nitrate concentrations in the Cedar River and other streams in Iowa are among the highest in the Nation. A 12-mile reach of the Cedar River upstream from Cedar Rapids, Iowa, is identified on the Total Maximum Daily Load list for...
Bank topography, bathymetry, and current velocity of the lower Elwha River, Clallam County, Washington, May 2006
Christopher A. Curran, Christopher P. Konrad, Randal L. Dinehart, Edward H. Moran
2008, Data Series 363
The removal of two dams from the mainstem of the Elwha River is expected to cause a broad range of changes to the river and nearby coastal ecosystem. The U.S. Geological Survey has documented aspects of the condition of the river to allow analysis of ecological responses to dam removal....
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Overview
Water Resources Division, U.S. Geological Survey
2008, Fact Sheet 2008-3066
The National Aeronautics and Space Administration (NASA) launched Terra, the Earth Observing System's (EOS) flagship satellite platform on December 18, 1999. The polar-orbiting Terra contains five remote sensing instruments, which enable the scientific study and analyses of global terrestrial processes and manifestations of global change. One of the five instruments...
Biogeochemical mechanisms of arsenic mobilization and sequestration
Kate M. Campbell, J. G. Hering
2008, Book chapter
This chapter contains sections titled:IntroductionSources of Arsenic in the EnvironmentRedox Cycling of ArsenicEffect of Organic Carbon on Arsenic CyclingArsenic Sequestration: Precipitation and AdsorptionArsenic Mobilization: Sediment Diagenesis and Reductive DissolutionCase Study: Haiwee ReservoirConclusionsReferences...
Land management in the Anthropocene: Is history still relevant?
Hugh D. Safford, Julio L. Betancourt, Gregory D. Hayward, John A. Wiens, Claudia M. Regan
2008, Conference Paper
Ecological restoration, conservation, and land management are often based on comparisons with reference sites or time periods, which are assumed to represent “natural” or “properly functioning” conditions. Such reference conditions can provide a vision of the conservation or management goal and a means to measure progress toward that vision. Although...
Characterization of Suspended-Sediment Loading to and from John Redmond Reservoir, East-Central Kansas, 2007-2008
Casey J. Lee, Patrick P. Rasmussen, Andrew C. Ziegler
2008, Scientific Investigations Report 2008-5123
Storage capacity in John Redmond Reservoir is being lost to sedimentation more rapidly than in other federal impoundments in Kansas. The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers, initiated a study to characterize suspended-sediment loading to and from John Redmond Reservoir from February 21, 2007,...
Effects of Potential Future Warming on Runoff in the Yakima River Basin, Washington
Mark C. Mastin
2008, Scientific Investigations Report 2008-5124
The Bureau of Reclamation has implemented a long-term planning study of potential water-storage alternatives in the Yakima River Basin, which includes planning for climate change effects on available water resources in the basin. Previously constructed watershed models for the Yakima River Basin were used to simulate changes in unregulated streamflow...