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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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Streamflow of 2014: Water year summary Streamflow of 2014: Water year summary
The maps and graphs in this summary describe streamflow conditions for water year 2014 (October 1, 2013, to September 30, 2014) in the context of the 85-year period from 1930 through 2014, unless otherwise noted. The illustrations are based on observed data from the U.S. Geological Survey’s (USGS) National Streamflow Information Program (NSIP) (http://water.usgs.gov/nsip/). The period...
Authors
Xiaodong Jian, David M. Wolock, Harry L. Jenter, Steve Brady
Streamflow, water quality, and constituent loads and yields, Scituate Reservoir drainage area, Rhode Island, water year 2013 Streamflow, water quality, and constituent loads and yields, Scituate Reservoir drainage area, Rhode Island, water year 2013
Streamflow and concentrations of sodium and chloride estimated from records of specific conductance were used to calculate loads of sodium and chloride during water year (WY) 2013 (October 1, 2012, through September 30, 2013) for tributaries to the Scituate Reservoir, Rhode Island. Streamflow and water-quality data used in the study were collected by the U.S. Geological Survey (USGS) or...
Authors
Kirk P. Smith
StreamStats in Georgia: A water-resources web application StreamStats in Georgia: A water-resources web application
Authors
Anthony J. Gotvald, Jonathan W. Musser
Strike-parallel and strike-normal coordinate system around geometrically complicated rupture traces: use by NGA-West2 and further improvements Strike-parallel and strike-normal coordinate system around geometrically complicated rupture traces: use by NGA-West2 and further improvements
We present a two-dimensional system of generalized coordinates for use with geometrically complex fault ruptures that are neither straight nor continuous. The coordinates are a generalization of the conventional strike-normal and strike-parallel coordinates of a single straight fault. The presented conventions and formulations are applicable to a single curved trace, as well as multiple...
Authors
Paul A. Spudich, Brian Chiou
Structure map of Mauritania (phase V, deliverables 52a and 52b) Structure map of Mauritania (phase V, deliverables 52a and 52b)
In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the geological and mineral exploration potential of the country. In 1999...
Authors
Dwight Bradley, John D. Horton, Holly A. Motts, Cliff D. Taylor
Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service Structured decision making for management of warm-water habitat for manatees. Final report to U.S. Fish and Wildlife Service
No abstract available.
Authors
Michael Kosempa, Julien Martin, Fred A. Johnson, Ron Mezich, Brad Stith, Charles J. Deutsch, Michelle Masi, Holly H. Edwards
Summarizing components of U.S. Department of the Interior vulnerability assessments to focus climate adaptation planning Summarizing components of U.S. Department of the Interior vulnerability assessments to focus climate adaptation planning
A secretarial order identified climate adaptation as a critical performance objective for future management of U.S. Department of the Interior (DOI) lands and resources in response to global change. Vulnerability assessments can inform climate adaptation planning by providing insight into what natural resources are most at risk and why. Three components of vulnerability—exposure...
Authors
Laura M. Thompson, Michelle D. Staudinger, Shawn L. Carter
Summary of hydrologic conditions in Kansas, water year 2014 Summary of hydrologic conditions in Kansas, water year 2014
The U.S. Geological Survey Kansas Water Science Center, in cooperation with Federal, State, and local agencies, maintains a long-term network of hydrologic monitoring gages in the State of Kansas. These include 206 real-time streamgages, 12 real-time reservoir-level monitoring stations, and 32 groundwater monitoring wells. These data and associated analyses, accumulated over time...
Authors
Andrew L. Robison
Summary of hydrologic modeling for the Delaware River Basin using the Water Availability Tool for Environmental Resources (WATER) Summary of hydrologic modeling for the Delaware River Basin using the Water Availability Tool for Environmental Resources (WATER)
The Water Availability Tool for Environmental Resources (WATER) is a decision support system for the nontidal part of the Delaware River Basin that provides a consistent and objective method of simulating streamflow under historical, forecasted, and managed conditions. In order to quantify the uncertainty associated with these simulations, however, streamflow and the associated...
Authors
Tanja N. Williamson, Jeremiah G. Lant, Peter R. Claggett, Elizabeth A. Nystrom, Paul C.D. Milly, Hugh L. Nelson, Scott A. Hoffman, Susan J. Colarullo, Jeffrey M. Fischer
Summary of oceanographic and water-quality measurements in Rachel Carson National Wildlife Refuge, Wells, Maine, in 2013 Summary of oceanographic and water-quality measurements in Rachel Carson National Wildlife Refuge, Wells, Maine, in 2013
Suspended-sediment transport is a critical element controlling the geomorphology of tidal wetland complexes. Wetlands rely on organic material and inorganic sediment deposition to maintain their elevation relative to sea level. The U.S. Geological Survey performed observational deployments to measure suspended-sediment concentration and water flow rates in the tidal channels of the...
Authors
Ellyn T. Montgomery, Neil K. Ganju, Patrick J. Dickhudt, Jonathan Borden, Marinna A. Martini, Sandra M. Brosnahan
Summary of oceanographic measurements for characterizing light attenuation and sediment resuspension in the Barnegat Bay-Little Egg Harbor Estuary, New Jersey, 2013 Summary of oceanographic measurements for characterizing light attenuation and sediment resuspension in the Barnegat Bay-Little Egg Harbor Estuary, New Jersey, 2013
The U.S. Geological Survey, in cooperation with the New Jersey Department of Environmental Protection, measured suspended-sediment concentrations, currents, waves, light attenuation, and a variety of other water-quality parameters in the summer of 2013 in Barnegat Bay-Little Egg Harbor, New Jersey. These measurements quantified light attenuation and sediment resuspension in three...
Authors
Patrick J. Dickhudt, Neil K. Ganju, Ellyn T. Montgomery