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: 84640
The 3D Elevation Program: summary for Illinois The 3D Elevation Program: summary for Illinois
Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Illinois, elevation data are critical for flood risk management, water supply and quality, infrastructure and construction management, agriculture and precision farming, and other business...
Authors
William J. Carswell
Archive of single-beam bathymetry data collected from select areas in Weeks Bay and Weeks Bayou, southwest Louisiana, January 2013 Archive of single-beam bathymetry data collected from select areas in Weeks Bay and Weeks Bayou, southwest Louisiana, January 2013
A team of scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, collected 92 line-kilometers of dual-frequency single-beam bathymetry data in the tidal creeks, bayous, and coastal areas near Weeks Bay, southwest Louisiana. Limited bathymetry data exist for these tidally and meteorologically influenced shallow-water estuarine environments. In order...
Authors
Nancy T. DeWitt, Christopher D. Reich, Christopher G. Smith, Billy J. Reynolds
Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River: annual report 2011 Ecological requirements for pallid sturgeon reproduction and recruitment in the Missouri River: annual report 2011
The Comprehensive Sturgeon Research Project is a multiyear, multiagency collaborative research framework developed to provide information to support pallid sturgeon recovery and Missouri River management decisions. The project strategy integrates field and laboratory studies of sturgeon reproductive ecology, early life history, habitat requirements, and physiology. The project scope of...
Authors
Aaron J. DeLonay, Robert B. Jacobson, Kimberly A. Chojnacki, Mandy L. Annis, P. J. Braaten, Caroline M. Elliott, D. B. Fuller, Justin D. Haas, Tyler M. Haddix, Hallie L.A. Ladd, Brandon J. McElroy, Gerald E. Mestl, Diana M. Papoulias, Jason C. Rhoten, Mark L. Wildhaber
Model documentation for relations between continuous real-time and discrete water-quality constituents in Indian Creek, Johnson County, Kansas, June 2004 through May 2013 Model documentation for relations between continuous real-time and discrete water-quality constituents in Indian Creek, Johnson County, Kansas, June 2004 through May 2013
Johnson County is the fastest growing county in Kansas, with a population of about 560,000 people in 2012. Urban growth and development can have substantial effects on water quality, and streams in Johnson County are affected by nonpoint-source pollutants from stormwater runoff and point-source discharges such as municipal wastewater effluent. Understanding of current (2014) water...
Authors
Mandy L. Stone, Jennifer L. Graham
Changing Arctic ecosystems: ecology of loons in a changing Arctic Changing Arctic ecosystems: ecology of loons in a changing Arctic
The U.S. Geological Survey (USGS) Changing Arctic Ecosystems (CAE) initiative informs key resource management decisions for Arctic Alaska by providing scientific information on current and future ecosystem response to a changing climate. From 2010 to 2014, a key study area for the USGS CAE initiative has been the Arctic Coastal Plain of northern Alaska. This region has experienced rapid...
Authors
Brian D. Uher-Koch, Joel A. Schmutz, Mary E. Whalen, John M. Pearce
Changing Arctic ecosystems: sea ice decline, permafrost thaw, and benefits for geese Changing Arctic ecosystems: sea ice decline, permafrost thaw, and benefits for geese
Through the Changing Arctic Ecosystems (CAE) initiative, the U.S. Geological Survey (USGS) strives to inform resource management decisions for Arctic Alaska by providing scientific information on current and future ecosystem response to a warming climate. A key area for the USGS CAE initiative has been the Arctic Coastal Plain of northern Alaska. This region has experienced a warming...
Authors
Paul L. Flint, Mary E. Whalen, John M. Pearce
Three-dimensional model of the hydrostratigraphy and structure of the area in and around the U.S. Army-Camp Stanley Storage Activity Area, northern Bexar County, Texas Three-dimensional model of the hydrostratigraphy and structure of the area in and around the U.S. Army-Camp Stanley Storage Activity Area, northern Bexar County, Texas
A three-dimensional model of the Camp Stanley Storage Activity area defines and illustrates the surface and subsurface hydrostratigraphic architecture of the military base and adjacent areas to the south and west using EarthVision software. The Camp Stanley model contains 11 hydrostratigraphic units in descending order: 1 model layer representing the Edwards aquifer; 1 model layer...
Authors
Michael P. Pantea, Charles D. Blome, Allan K. Clark
The Pedestrian Evacuation Analyst: geographic information systems software for modeling hazard evacuation potential The Pedestrian Evacuation Analyst: geographic information systems software for modeling hazard evacuation potential
Recent disasters such as the 2011 Tohoku, Japan, earthquake and tsunami; the 2013 Colorado floods; and the 2014 Oso, Washington, mudslide have raised awareness of catastrophic, sudden-onset hazards that arrive within minutes of the events that trigger them, such as local earthquakes or landslides. Due to the limited amount of time between generation and arrival of sudden-onset hazards...
Authors
Jeanne M. Jones, Peter Ng, Nathan J. Wood
Waterbird egg mercury concentrations in response to wetland restoration in south San Francisco Bay, California Waterbird egg mercury concentrations in response to wetland restoration in south San Francisco Bay, California
The conversion of 50–90 percent of 15,100 acres of former salt evaporation ponds to tidal marsh habitat in the south San Francisco Bay, California, is planned as part of the South Bay Salt Pond Restoration Project. This large-scale habitat restoration may change the bioavailability of methylmercury. The South Bay already is known to have high methylmercury concentrations, with...
Authors
Joshua T. Ackerman, Mark P. Herzog, Christopher A. Hartman, Trevor C. Watts, Jarred R. Barr
The 3D Elevation Program: summary for Arizona The 3D Elevation Program: summary for Arizona
Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Arizona, elevation data are critical for infrastructure and construction management, natural resources conservation, flood risk management, geologic resource assessment and hazard mitigation
Authors
William J. Carswell
Rancher and farmer quality of life in the midst of energy development in southwest Wyoming Rancher and farmer quality of life in the midst of energy development in southwest Wyoming
Quality of life (QOL) is usually defined as a person’s general well-being, and may include individual perceptions of a variety of factors such family, work, finances, local community services, community relationships, surrounding environment, and other important aspects of their life, ultimately leading to life satisfaction. Energy development can have an effect on QOL components for...
Authors
Leslie Allen, Jessica Montag, Katie Lyon, Suzanna Soileau, Rudy Schuster
Water-chemistry data collected in and near Kaloko-Honokohau National Historical Park, Hawaii, 2012–2014 Water-chemistry data collected in and near Kaloko-Honokohau National Historical Park, Hawaii, 2012–2014
Kaloko-Honokōhau National Historical Park (KAHO) on western Hawaiʻi was established in 1978 to preserve, interpret, and perpetuate traditional Native Hawaiian culture and activities, including the preservation of a variety of culturally and ecologically significant water resources that are vital to this mission. KAHO water bodies provide habitat for 1 threatened, 11 endangered, and 3...
Authors
Fred D. Tillman, Delwyn S. Oki, Adam G. Johnson