Reports
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 84803
Sylvatic plague vaccine and management of prairie dogs Sylvatic plague vaccine and management of prairie dogs
Scientists at the USGS National Wildlife Health Center (NWHC), in collaboration with colleagues at the University of Wisconsin (UW), have developed a sylvatic plague vaccine that shows great promise in protecting prairie dogs against plague (Mencher and others, 2004; Rocke and others, 2010). Four species of prairie dogs reside in the United States and Canada, and all are highly...
Authors
Tonie E. Rocke
Evaluation of the relation between evapotranspiration and normalized difference vegetation index for downscaling the simplified surface energy balance model Evaluation of the relation between evapotranspiration and normalized difference vegetation index for downscaling the simplified surface energy balance model
The Simplified Surface Energy Balance (SSEB) model uses satellite imagery to estimate actual evapotranspiration (ETa) at 1-kilometer resolution. SSEB ETa is useful for estimating irrigation water use; however, resolution limitations restrict its use to regional scale applications. The U.S. Geological Survey investigated the downscaling potential of SSEB ETa from 1 kilometer to 250 meters...
Authors
Jonathan V. Haynes, Gabriel B. Senay
Groundwater quality in the Coastal Los Angeles Basin, California Groundwater quality in the Coastal Los Angeles Basin, California
The Coastal Los Angeles Basin study unit is approximately 860 square miles and consists of the Santa Monica, Hollywood, West Coast, Central, and Orange County Coastal Plain groundwater basins (California Department of Water Resources, 2003). The basins are bounded in part by faults, including the Newport-Inglewood fault zone, and are filled with Holocene-, Pleistocene-, and Pliocene-age...
Authors
Miranda S. Fram, Kenneth Belitz
Microgravity methods for characterization of groundwater-storage changes and aquifer properties in the karstic Madison aquifer in the Black Hills of South Dakota, 2009-12 Microgravity methods for characterization of groundwater-storage changes and aquifer properties in the karstic Madison aquifer in the Black Hills of South Dakota, 2009-12
A study of groundwater storage in the karstic Madison aquifer in the Black Hills of South Dakota using microgravity methods was conducted by the U.S. Geological Survey in cooperation with West Dakota Water Development District, South Dakota Department of Environment and Natural Resources, and Lawrence County. Microgravity measurements from 2009 to 2012 were used to investigate...
Authors
Karl R. Koth, Andrew J. Long
Simulation of groundwater and surface-water interaction and effects of pumping in a complex glacial-sediment aquifer, east central Massachusetts Simulation of groundwater and surface-water interaction and effects of pumping in a complex glacial-sediment aquifer, east central Massachusetts
The effects of groundwater pumping on surface-water features were evaluated by use of a numerical groundwater model developed for a complex glacial-sediment aquifer in northeastern Framingham, Massachusetts, and parts of surrounding towns. The aquifer is composed of sand, gravel, silt, and clay glacial-fill sediments up to 270 feet thick over an irregular fractured bedrock surface...
Authors
Jack R. Eggleston, Carl S. Carlson, Gillian M. Fairchild, Phillip J. Zarriello
Status of groundwater quality in the Coastal Los Angeles Basin, 2006-California GAMA Priority Basin Project Status of groundwater quality in the Coastal Los Angeles Basin, 2006-California GAMA Priority Basin Project
Groundwater quality in the approximately 860-square-mile (2,227-square-kilometer) Coastal Los Angeles Basin study unit (CLAB) was investigated as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study area is located in southern California in Los Angeles and Orange Counties. The GAMA Priority Basin Project is being conducted by...
Authors
Dara A. Goldrath, Miranda S. Fram, Michael Land, Kenneth Belitz
Streamflow gain and loss and water quality in the upper Nueces River Basin, south-central Texas, 2008-10 Streamflow gain and loss and water quality in the upper Nueces River Basin, south-central Texas, 2008-10
The U.S. Geological Survey-in cooperation with the U.S. Army Corps of Engineers, The Nature Conservancy, the Real Edwards Conservation and Reclamation District, and the Texas Parks and Wildlife Department-investigated streamflow gain and loss and water quality in the upper Nueces River Basin, south-central Texas, specifically in the watersheds of the West Nueces, Nueces, Dry Frio, Frio...
Authors
J. Ryan Banta, Rebecca B. Lambert, Richard N. Slattery, Darwin J. Ockerman
Assessment of groundwater, soil-gas, and soil contamination at the Vietnam Armor Training Facility, Fort Gordon, Georgia, 2009-2011 Assessment of groundwater, soil-gas, and soil contamination at the Vietnam Armor Training Facility, Fort Gordon, Georgia, 2009-2011
The U.S. Geological Survey, in cooperation with the U.S. Department of the Army Environmental and Natural Resources Management Office of the U.S. Army Signal Center and Fort Gordon, Georgia, assessed the groundwater, soil gas, and soil for contaminants at the Vietnam Armor Training Facility (VATF) at Fort Gordon, from October 2009 to September 2011. The assessment included the detection...
Authors
Wladmir B. Guimaraes, W. Fred Falls, Andral W. Caldwell, W. Hagan Ratliff, John B. Wellborn, James Landmeyer
Specific conductance measurements in central and western New York streams - A retrospective characterization Specific conductance measurements in central and western New York streams - A retrospective characterization
U.S. Geological Survey (USGS) Data Rescue Program funds were used to recover data from paper records for 139 streamgages across central and western New York State; 6,133 different streamflow measurement forms, collected between 1970-80, contained field water-quality measurements. The water-quality data were entered, reviewed, and uploaded into the USGS National Water Information System...
Authors
William M. Kappel, Gaylen J. Sinclair, James E. Reddy, David A. Eckhardt, M. Peter deVries, Margaret E. Phillips
Groundwater data for selected wells within the Eastern San Joaquin Groundwater Subbasin, California, 2003-8 Groundwater data for selected wells within the Eastern San Joaquin Groundwater Subbasin, California, 2003-8
Data were collected by the U.S. Geological Survey from 2003 through 2008 in the Eastern San Joaquin Groundwater Subbasin, 80 miles east of San Francisco, California, as part of a study of the increasing chloride concentrations in groundwater processes. Data collected include geologic, geophysical, chemical, and hydrologic data collected during and after the installation of five multiple...
Authors
Dennis A. Clark, John A. Izbicki, Loren F. Metzger, Rhett R. Everett, Gregory A. Smith, David R. O’Leary, Nicholas F. Teague, Matthew K. Burgess
Unsupervised classification of lidar-based vegetation structure metrics at Jean Lafitte National Historical Park and Preserve Unsupervised classification of lidar-based vegetation structure metrics at Jean Lafitte National Historical Park and Preserve
Traditional vegetation maps capture the horizontal distribution of various vegetation properties, for example, type, species and age/senescence, across a landscape. Ecologists have long known, however, that many important forest properties, for example, interior microclimate, carbon capacity, biomass and habitat suitability, are also dependent on the vertical arrangement of branches and...
Authors
Christine J. Kranenburg, Monica Palaseanu-Lovejoy, Amar Nayegandhi, John Brock, Robert Woodman
Water-level data for the Albuquerque Basin and adjacent areas, central New Mexico, period of record through September 30, 2011 Water-level data for the Albuquerque Basin and adjacent areas, central New Mexico, period of record through September 30, 2011
The Albuquerque Basin, located in central New Mexico, is about 100 miles long and 25–40 miles wide. The basin is defined as the extent of consolidated and unconsolidated deposits of Tertiary and Quaternary age that encompasses the structural Rio Grande Rift within the basin. Drinking-water supplies throughout the basin were obtained solely from groundwater resources until December 2008...
Authors
Joseph E. Beman