Hydrology and management of Lakes Mead and Mohave within the Colorado River Basin: Chapter 3 in A synthesis of aquatic science for management of Lakes Mead and Mohave
G. Chris Holdren, Todd Tietjen, Kent Turner, Jennell M. Miller
2012, Circular 1381-3
The Colorado River Basin covers parts of seven States: Colorado, Wyoming, Utah, New Mexico, Nevada, Arizona, and California; at 1,450 mi (2,333.5 km) in length, the Colorado River is the seventh longest river in the United States (fig. 3-1). The Bureau of Reclamation has the responsibility for management of this...
Environmental setting of Lake Mead National Recreation Area: Chapter 2 in A synthesis of aquatic science for management of Lakes Mead and Mohave
Kent Turner, Michael R. Rosen, G. Chris Holdren, Steven L. Goodbred, David C. Twichell
2012, Circular 1381-2
Lakes Mead and Mohave provide opportunities for millions of regional, national, and international visitors to enjoy a wide array of water-based recreation in a spectacular desert setting. The national significance of the site’s recreational opportunities and scientific values led to its designation as the nation’s first National Recreation Area in...
Management implications of the science: Chapter 7 in A synthesis of aquatic science for management of Lakes Mead and Mohave
Kent Turner, Steven L. Goodbred, Michael R. Rosen, Jennell M. Miller
2012, Circular 1381-7
Lake Mead, particularly its Boulder Basin, is one of the most intensively monitored reservoirs in the United States. With its importance to societal needs and ecosystem benefits, interest in water quality and water resources of Lake Mead will remain high. A number of agencies have authorities and management interests in...
A synthesis of aquatic science for management of Lakes Mead and Mohave
Michael R. Rosen, Kent Turner, Steven L. Goodbred, Jennell M. Miller
2012, Circular 1381
Lakes Mead and Mohave, which are the centerpieces of Lake Mead National Recreation Area, provide many significant benefits that have made the modern development of the Southwestern United States possible. Lake Mead is the largest reservoir by volume in the nation and it supplies critical storage of water supplies for...
Wildlife and biological resources: Chapter 5 in A synthesis of aquatic science for management of Lakes Mead and Mohave
Sudeep Chandra, Scott R. Abella, Brandon A. Albrecht, Joseph G. Barnes, E. Cayenne Engel, Steven L. Goodbred, Paul B. Holden, Ron B. Kegerries, Jef R. Jaeger, Erik Orsak, Michael R. Rosen, Jon Sjöberg, Wai Hing Wong
2012, Circular 1381-5
The creation of Lakes Mead and Mohave drastically changed habitats originally found along their region of the historical Colorado River. While still continuing to provide habitat conditions that support a rich diversity of species within the water, along shorelines, and in adjacent drainage areas, the reservoirs contain organisms that are...
Introduction and summary of findings
Kent Turner, Michael R. Rosen, Steven L. Goodbred, Jennell M. Miller
2012, Circular 1381-1
Lakes Mead and Mohave, which are the centerpieces of Lake Mead National Recreation Area (LMNRA), provide many significant benefits that have made the modern development of the Southwestern United States possible. Lake Mead is the largest reservoir by volume in the nation and it supplies critical storage of water supplies...
Sampling history and 2009--2010 results for pesticides and inorganic constituents monitored by the Lake Wales Ridge Groundwater Network, central Florida
Anne F. Choquette, R. Scott Freiwald, Carol L. Kraft
2012, Open-File Report 2012-1231
The Lake Wales Ridge Monitoring (LWRM) Network was established to provide a long-term record of water quality of the surficial aquifer in one of the principal citrus-production areas of Florida. This region is underlain by sandy soils that contain minimal organic matter and are highly vulnerable to leaching of chemicals...
Methods to characterize environmental settings of stream and groundwater sampling sites for National Water-Quality Assessment
Naomi Nakagaki, Kerie J. Hitt, Curtis V. Price, James A. Falcone
2012, Scientific Investigations Report 2012-5194
Characterization of natural and anthropogenic features that define the environmental settings of sampling sites for streams and groundwater, including drainage basins and groundwater study areas, is an essential component of water-quality and ecological investigations being conducted as part of the U.S. Geological Survey's National Water-Quality Assessment program. Quantitative characterization of...
Sediment dynamics in the restored reach of the Kissimmee River Basin, Florida: A vast subtropical riparian wetland
E.R. Schenk, C.R. Hupp, A. Gellis
2012, River Research and Applications (28) 1753-1767
Historically, the Kissimmee River Basin consisted of a broad nearly annually inundated riparian wetland similar in character to tropical Southern Hemisphere large rivers. The river was channelized in the 1960s and 1970s, draining the wetland. The river is currently being restored with over 10 000 hectares of wetlands being reconnected to...
Geologic map of Three Sisters volcanic cluster, Cascade Range, Oregon
Wes Hildreth, Judy Fierstein, Andrew T. Calvert
2012, Scientific Investigations Map 3186
The cluster of glaciated stratovolcanoes called the Three Sisters—South Sister, Middle Sister, and North Sister—forms a spectacular 20-km-long reach along the crest of the Cascade Range in Oregon. The three eponymous stratocones, though contiguous and conventionally lumped sororally, could hardly display less family resemblance. North Sister (10,085 ft), a monotonously...
Low-flow frequency and flow duration of selected South Carolina streams in the Saluda, Congaree, and Edisto River basins through March 2009
Toby D. Feaster, Wladmir B. Guimaraes
2012, Open-File Report 2012-1253
Part of the mission of the South Carolina Department of Health and Environmental Control and the South Carolina Department of Natural Resources is to protect and preserve South Carolina's water resources. Doing so requires an ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina. A particular...
Evaluation of quality-control data collected by the U.S. Geological Survey for routine water-quality activities at the Idaho National Laboratory, Idaho, 1996–2001
Gordon W. Rattray
2012, Scientific Investigations Report 2012-5270
The U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collects surface water and groundwater samples at and near the Idaho National Laboratory as part of a routine, site-wide, water-quality monitoring program. Quality-control samples are collected as part of the program to ensure and document the quality of...
Comparison of two regression-based approaches for determining nutrient and sediment fluxes and trends in the Chesapeake Bay watershed
Douglas Moyer, Robert M. Hirsch, Kenneth Hyer
2012, Scientific Investigations Report 2012-5244
Nutrient and sediment fluxes and changes in fluxes over time are key indicators that water resource managers can use to assess the progress being made in improving the structure and function of the Chesapeake Bay ecosystem. The U.S. Geological Survey collects annual nutrient (nitrogen and phosphorus) and sediment flux data...
Implications of NGA for NEHRP site coefficients
Roger D. Borcherdt
2012, Open-File Report 2012-1269
Three proposals are provided to update tables 11.4-1 and 11.4-2 of Minimum Design Loads for Buildings and Other Structures (7-10), by the American Society of Civil Engineers (2010) (ASCE/SEI 7-10), with site coefficients implied directly by NGA (Next Generation Attenuation) ground motion prediction equations (GMPEs). Proposals include a recommendation to...
An economic value of remote-sensing information—Application to agricultural production and maintaining groundwater quality
William M. Forney, Ronald P. Raunikar, Richard L. Bernknopf, Shruti K. Mishra
2012, Professional Paper 1796
Does remote-sensing information provide economic benefits to society, and can a value be assigned to those benefits? Can resource management and policy decisions be better informed by coupling past and present Earth observations with groundwater nitrate measurements? Using an integrated assessment approach, the U.S. Geological Survey (USGS) applied an established...
Observations of ocean circulation and sediment transport experiment offshore of Fire Island, NY
Marinna A. Martini, John C. Warner, Brandy Armstrong, Jeffrey H. List, Ellyn Montgomery, Nicole Marshall
2012, Conference Paper, Proceedings of 2012 Oceans
Researchers from the U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center (WHCMSC), in collaboration with Coastal Carolina University (CCU) and University of South Carolina (USC), conducted a scientific field study to investigate the ocean circulation and sediment transport processes offshore of Fire Island, NY. Although the physical...
Landsat: building a strong future
Thomas R. Loveland, John L. Dwyer
2012, Remote Sensing of Environment (122) 22-29
Conceived in the 1960s, the Landsat program has experienced six successful missions that have contributed to an unprecedented 39-year record of Earth Observations that capture global land conditions and dynamics. Incremental improvements in imaging capabilities continue to improve the quality of Landsat science data, while ensuring continuity over the full...
U.S. Geological Survey, National Wildlife Health Center, 2011 report of selected wildlife diseases
David E. Green, Megan Hines, Robin E. Russell, Jonathan M. Sleeman
2012, Scientific Investigations Report 2012-5271
The National Wildlife Health Center (NWHC) was founded in 1975 to provide technical assistance in identifying, controlling, and preventing wildlife losses from diseases, conduct research to understand the impact of diseases on wildlife populations, and devise methods to more effectively manage these disease threats. The impetus behind the creation of...
Laboratory triggering of stick-slip events by oscillatory loading in the presence of pore fluid with implications for physics of tectonic tremor
Noel M. Bartlow, David A. Lockner, Nicholas M. Beeler
2012, Journal of Geophysical Research B: Solid Earth (117) 1-11
The physical mechanism by which the low-frequency earthquakes (LFEs) that make up portions of tectonic (also called non-volcanic) tremor are created is poorly understood. In many areas of the world, tectonic tremor and LFEs appear to be strongly tidally modulated, whereas ordinary earthquakes are not. Anomalous seismic wave speeds, interpreted...
Laboratory observations of fault strength in response to changes in normal stress
Brian D. Kilgore, Julian Lozos, Nicholas M. Beeler, David Oglesby
2012, Journal of Applied Mechanics (79) 031007
Changes in fault normal stress can either inhibit or promote rupture propagation, depending on the fault geometry and on how fault shear strength varies in response to the normal stress change. A better understanding of this dependence will lead to improved earthquake simulation techniques, and ultimately, improved earthquake hazard mitigation...
Groundwater quality in the Indian Wells Valley, California
Barbara J. Milby Dawson, Kenneth Belitz
2012, Fact Sheet 2012-3035
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to...
Groundwater quality in the Colorado River basins, California
Barbara J. Milby Dawson, Kenneth Belitz
2012, Fact Sheet 2012-3034
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to...
Status of groundwater quality in the California Desert Region, 2006-2008: California GAMA Priority Basin Project
Barbara J. Milby Dawson, Kenneth Belitz
2012, Scientific Investigations Report 2012-5040
Groundwater quality in six areas in the California Desert Region (Owens, Antelope, Mojave, Coachella, Colorado River, and Indian Wells) was investigated as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project is being conducted by the California State Water...
Groundwater quality in the Antelope Valley, California
Barbara J. Milby Dawson, Kenneth Belitz
2012, Fact Sheet 2012-3033
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to...
Groundwater quality in Coachella Valley, California
Barbara J. Milby Dawson, Kenneth Belitz
2012, Fact Sheet 2012-3098
Groundwater provides more than 40 percent of California’s drinking water. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State’s groundwater quality and increases public access to...
