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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.
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Tribal engagement strategy of the South Central Climate Science Center, 2014 Tribal engagement strategy of the South Central Climate Science Center, 2014
The South Central Climate Science Center was established by the U.S. Department of the Interior in 2012 to increase understanding of climate change and coordinate an effective response to climate-change effects on Native American tribes and natural and cultural resources that the Department manages. The eight regional Climate Science Centers of the U.S. Department of the Interior work...
Authors
William J. Andrews, April Taylor, Kimberly T. Winton
Methods for estimating annual exceedance-probability discharges and largest recorded floods for unregulated streams in rural Missouri Methods for estimating annual exceedance-probability discharges and largest recorded floods for unregulated streams in rural Missouri
Regression analysis techniques were used to develop a set of equations for rural ungaged stream sites for estimating discharges with 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities, which are equivalent to annual flood-frequency recurrence intervals of 2, 5, 10, 25, 50, 100, 200, and 500 years, respectively. Basin and climatic characteristics were...
Authors
Rodney E. Southard, Andrea G. Veilleux
Post-Hurricane Sandy coastal oblique aerial photographs collected from Cape Lookout, North Carolina, to Montauk, New York, November 4-6, 2012 Post-Hurricane Sandy coastal oblique aerial photographs collected from Cape Lookout, North Carolina, to Montauk, New York, November 4-6, 2012
The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On November 4-6, 2012, approximately one week after the landfall of Hurricane Sandy, the USGS conducted an oblique aerial photographic survey from Cape Lookout, N.C., to Montauk, N.Y., aboard a Piper...
Authors
Karen L.M. Morgan, M. Dennis Krohn
Provisional maps of thermal areas in Yellowstone National Park, based on satellite thermal infrared imaging and field observations Provisional maps of thermal areas in Yellowstone National Park, based on satellite thermal infrared imaging and field observations
Maps that define the current distribution of geothermally heated ground are useful toward setting a baseline for thermal activity to better detect and understand future anomalous hydrothermal and (or) volcanic activity. Monitoring changes in the dynamic thermal areas also supports decisions regarding the development of Yellowstone National Park infrastructure, preservation and protection...
Authors
R. Greg Vaughan, Henry Heasler, Cheryl Jaworowski, Jacob B. Lowenstern, Laszlo P. Keszthelyi
Benthos and plankton community data for selected rivers and harbors along Wisconsin's Lake Michigan shoreline, 2012 Benthos and plankton community data for selected rivers and harbors along Wisconsin's Lake Michigan shoreline, 2012
Four river systems on the Wisconsin shoreline of Lake Michigan are designated Areas of Concern (AOCs) because of severe environmental degradation: the Lower Menominee River, Lower Green Bay and Fox River, Sheboygan River, and Milwaukee Estuary. Each AOC has one or more Beneficial Use Impairments (BUIs) that form the basis of the AOC designation and that must be remediated or otherwise...
Authors
Barbara C. Scudder Eikenberry, Amanda H. Bell, Daniel J. Burns, Hayley T. Olds
Magnetic resonance sounding survey data collected in the North Platte, Twin Platte, and South Platte Natural Resource Districts, Western Nebraska, Fall 2012 Magnetic resonance sounding survey data collected in the North Platte, Twin Platte, and South Platte Natural Resource Districts, Western Nebraska, Fall 2012
This report is a release of digital data and associated survey descriptions from a series of magnetic resonance soundings (MRS, also known as surface nuclear magnetic resonance) that was conducted during October and November of 2012 in areas of western Nebraska as part of a cooperative hydrologic study by the North Platte Natural Resource District (NRD), South Platte NRD, Twin Platte NRD...
Authors
Mason A. Kass, Benjamin R. Bloss, Trevor P. Irons, James C. Cannia, Jared D. Abraham
Evidence of Absence software Evidence of Absence software
Evidence of Absence software (EoA) is a user-friendly application used for estimating bird and bat fatalities at wind farms and designing search protocols. The software is particularly useful in addressing whether the number of fatalities has exceeded a given threshold and what search parameters are needed to give assurance that thresholds were not exceeded. The software is applicable...
Authors
Daniel Dalthorp, Manuela M. P. Huso, David Dail, Jessica Kenyon
Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California: 2013 Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California: 2013
Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay, Calif. This report includes the data...
Authors
Jessica Dyke, Daniel J. Cain, Janet K. Thompson, Amy E. Kleckner, Francis Parcheso, Michelle I. Hornberger, Samuel N. Luoma
One-Water Hydrologic Flow Model (MODFLOW-OWHM) One-Water Hydrologic Flow Model (MODFLOW-OWHM)
The One-Water Hydrologic Flow Model (MF-OWHM) is a MODFLOW-based integrated hydrologic flow model (IHM) that is the most complete version, to date, of the MODFLOW family of hydrologic simulators needed for the analysis of a broad range of conjunctive-use issues. Conjunctive use is the combined use of groundwater and surface water. MF-OWHM allows the simulation, analysis, and management...
Authors
Randall T. Hanson, Scott E. Boyce, Wolfgang Schmid, Joseph D. Hughes, Steffen W. Mehl, Stanley A. Leake, Thomas Maddock, Richard G. Niswonger
Stream classification of the Apalachicola-Chattahoochee-Flint River System to support modeling of aquatic habitat response to climate change Stream classification of the Apalachicola-Chattahoochee-Flint River System to support modeling of aquatic habitat response to climate change
A stream classification and associated datasets were developed for the Apalachicola-Chattahoochee-Flint River Basin to support biological modeling of species response to climate change in the southeastern United States. The U.S. Geological Survey and the Department of the Interior’s National Climate Change and Wildlife Science Center established the Southeast Regional Assessment Project...
Authors
Caroline M. Elliott, Robert B. Jacobson, Mary Freeman
Integrated hydrologic model of Pajaro Valley, Santa Cruz and Monterey Counties, California Integrated hydrologic model of Pajaro Valley, Santa Cruz and Monterey Counties, California
Increasing population, agricultural development (including shifts to more water-intensive crops), and climate variability are placing increasingly larger demands on available groundwater resources in the Pajaro Valley, one of the most productive agricultural regions in the world. This study provided a refined conceptual model, geohydrologic framework, and integrated hydrologic model of...
Authors
Randall T. Hanson, Wolfgang Schmid, Claudia C. Faunt, Jonathan Lear, Brian Lockwood
Legacy data for a northern prairie grassland: Woodworth Study Area, North Dakota, 1963-89 Legacy data for a northern prairie grassland: Woodworth Study Area, North Dakota, 1963-89
Ecological data commonly become more valuable through time. Such legacy data provide baseline records of past biological, physical, and social information that provide historical perspective and are necessary for assessment of stasis or change. Legacy data collected at the Woodworth Study Area (WSA), a contiguous block of grasslands, croplands, and wetlands covering more than 1,000...
Authors
Shelby H. Williams, Jane E. Austin