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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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Genetic population assignments of Atlantic sturgeon provided to National Marine Fisheries Service, 2022 Genetic population assignments of Atlantic sturgeon provided to National Marine Fisheries Service, 2022
Acipenser oxyrinchus oxyrinchus (Atlantic sturgeon) were once abundant and supported large-scale fisheries throughout much of the east coast of the United States. However, historic overharvest and habitat loss resulted in dramatic declines in abundance and eventual listing under the Endangered Species Act of the United States. As part of this listing, Atlantic sturgeon populations were...
Authors
Shannon L. White, Robin L. Johnson, Barbara A. Lubinski, Michael S. Eackles, David C. Kazyak
Improving the Midwest Climate Change Vulnerability Assessment Tool to support regional climate adaptation Improving the Midwest Climate Change Vulnerability Assessment Tool to support regional climate adaptation
An online climate vulnerability assessment dashboard was developed in 2021 through collaboration between U.S. Geological Survey (USGS) and U.S. Fish and Wildlife Service (FWS) to support regional climate adaptation efforts. The dashboard included 15 climate change impact metrics (five each from three categories: hydrology, precipitation, and temperature) and five metrics representing...
Authors
John T. Delaney, Kristen L. Bouska
Parameter estimation at the conterminous United States scale and streamflow routing enhancements for the National Hydrologic Model infrastructure application of the Precipitation-Runoff Modeling System (NHM-PRMS) Parameter estimation at the conterminous United States scale and streamflow routing enhancements for the National Hydrologic Model infrastructure application of the Precipitation-Runoff Modeling System (NHM-PRMS)
This report documents a three-part continental-scale calibration procedure and a new streamflow routing algorithm using the U.S. Geological Survey National Hydrologic Model (NHM) infrastructure along with an application of the Precipitation-Runoff Modeling System (PRMS). The traditional approach to hydrologic model calibration and evaluation, which relies on comparing observed and...
Authors
Lauren E. Hay, Jacob H. LaFontaine, Ashley E. Van Beusekom, Parker A. Norton, William H. Farmer, R. Steve Regan, Steven L. Markstrom, Jesse E. Dickinson
Calibrating optical turbidity measurements with suspended-sediment concentrations from the Herring River in Wellfleet, Massachusetts, from November 2018 to November 2019 Calibrating optical turbidity measurements with suspended-sediment concentrations from the Herring River in Wellfleet, Massachusetts, from November 2018 to November 2019
The sediment budget in the tidally restricted Herring River in Wellfleet, Massachusetts, must be quantified so restoration options for the river can be evaluated. Platforms equipped with optical turbidity sensors were deployed seaward and landward of the Herring River restriction to measure a time series of turbidity, from which a time series of suspended-sediment concentration (SSC) can...
Authors
Olivia A. De Meo, Neil K. Ganju, Robert D. Bales, Eric D. Marsjanik, Steven E. Suttles
Seismic images and subsurface structures of northeastern Edwards Air Force Base, Kern County, California Seismic images and subsurface structures of northeastern Edwards Air Force Base, Kern County, California
We used multi-component seismic data (including two-dimensional images of compressional-wave velocity [vP], shear-wave velocity [vS], the ratio of compressional-wave velocity to shear-wave velocity [vP/vS ratio], Poisson’s ratio [μ], and seismic reflections) along a transect across northeastern Edwards Air Force Base to investigate the upper few hundred meters of the subsurface. The...
Authors
Rufus D. Catchings, Mark R. Goldman, Joanne H. Chan, Robert R. Sickler, Coyn J. Criley
Assessing exposure of northern Utah communities to dust from the contaminated and dynamic Great Salt Lake playa Assessing exposure of northern Utah communities to dust from the contaminated and dynamic Great Salt Lake playa
No abstract available.
Authors
Annie L. Putman, Molly A. Blakowski, Morgan C. McDonnell, Destry N. DiViesti, Diego P. Fernandez, Patrick C. Longley, Daniel K. Jones