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: 84733
Modeling a 2- and 4-foot drawdown in the Link River to Keno Dam reach of the upper Klamath River, south-central Oregon Modeling a 2- and 4-foot drawdown in the Link River to Keno Dam reach of the upper Klamath River, south-central Oregon
Executive Summary The most upstream, pooled reach of the Klamath River in south-central Oregon, from Link River mouth to Keno Dam (Link-Keno), has a water-surface elevation that remains relatively constant throughout the year. Two model scenarios, using an existing two-dimensional hydrodynamic and water-quality model (CE-QUAL-W2), were constructed to examine the effects of lowering the...
Authors
Annett B. Sullivan, Stewart A. Rounds
Preparing for geophysical science on the surface of the moon enabled by Artemis Preparing for geophysical science on the surface of the moon enabled by Artemis
Geophysical methods have been extremely successful in identifying resources on Earth as they provide a means of characterizing and mapping the sub-surface using data gathered on and above the target structures. Geophysics on the Moon will be an important tool for identifying key targets for geological prospecting, scientific sampling, assessing hazards and risks to crew and...
Authors
Nicholas Schmerr, Jacob A. Richardson, R. Ghent, Matt Seigler, Molly Wasser, Patrick Wheeley, D. Buczkowski, Lynne Carter, Chuck Connor, Laura Connor, Jacob E. Bleacher, M. Fouch, D. Baker, T. Hurford, L. Jozwiak, Sarah Kruse, V. Lekic, A. Naids, Ryan Porter, L. Montesi, Derek Richardson, M. Elise Rumpf, J. Sunshine, Norbert Schorghofer, S. Goossens, Nicole Whelley, D. Wyrick, W. Zhu, Ernie Bell, J. DeMartini, D. Coan, D. Akin, Barbara Cohen, E. Mazarico, Clive Neal, M. Panning, Noah Petro, B. Strauss, Renee Weber, T. Glotch, A. Hendrix, A. Parker, Sarah Wright
U.S. Geological Survey science in support of the North American Bat Monitoring Program (NABat) U.S. Geological Survey science in support of the North American Bat Monitoring Program (NABat)
Bats make up one-fifth of all mammalian species worldwide and are found on every continent except Antarctica. They contribute to overall ecosystem health by suppressing pest insects and pollinating plants and spreading seeds. Eight North American bat species are listed as federally endangered or threatened, and more than one-half are of current conservation concern in the United States...
Authors
Brian E. Reichert, Suzanna C. Soileau
Assessment of soil and water resources in the Organ Mountains-Desert Peaks National Monument, New Mexico Assessment of soil and water resources in the Organ Mountains-Desert Peaks National Monument, New Mexico
The Organ Mountains-Desert Peaks National Monument (Monument) in southern New Mexico was established in 2014. Given anticipated future demands in the Monument for recreation, livestock grazing, and maintenance of rights-of-way (for example, pipelines and powerlines), the Bureau of Land Management (BLM) needs a better understanding of the current soil and water resources and how...
Authors
Johanna M. Blake, Aurelia C. Mitchell, Zachary M. Shephard, Grady Ball, Shaleene Chavarria, Kyle R. Douglas-Mankin
Final project memorandum: Southeast Climate Adaptation Science Center Project Final project memorandum: Southeast Climate Adaptation Science Center Project
Low-lying public lands along the northern Gulf of Mexico coast are vulnerable to sea-level rise. Coastal planners and resource managers in the region have requested customized information that can be used to concisely communicate local sea-level rise scenarios and identify potential impacts to the missions of management agencies. In this project, researchers worked with the Northern Gulf...
Authors
Michael Osland, Renee C. Collini
Local sea level rise information sheets for Texas, Louisiana, Mississippi, Alabama and Florida Local sea level rise information sheets for Texas, Louisiana, Mississippi, Alabama and Florida
Two Pagers for Federally Managed Lands The Northern Gulf of Mexico Sentinel Site Cooperative partnered with individuals at the U.S. Geological Survey’s Wetland and Aquatic Research Center and the U.S. Fish and Wildlife Service to produce customized two-pager information sheets for federal coastal refuges, parks, and reserves across the northern Gulf of Mexico (i.e., sea-level rise...
Authors
Bogdan Chivoiu, Michael J. Osland, Renee C. Collini, Sara Martin, John M. Tirpak, Benjamin Wilson
Multiple-well monitoring site adjacent to the Lost Hills oil field, Kern County, California Multiple-well monitoring site adjacent to the Lost Hills oil field, Kern County, California
The U.S. Geological Survey (USGS), in cooperation with the California State Water Resources Control Board, is evaluating several questions about oil and gas development and groundwater resources in California, including (1) the location of groundwater resources; (2) the proximity of oil and gas operations and groundwater and the geologic materials between them; (3) the location of...
Authors
Rhett R. Everett, Adam Kjos, Anthony A. Brown, Janice M. Gillespie, Peter B. McMahon
Stormwater quality of infrastructure elements in Rapid City, South Dakota, 2016–18 Stormwater quality of infrastructure elements in Rapid City, South Dakota, 2016–18
As runoff flows over the land or impervious surfaces (paved streets, parking lots, and building roofs), it accumulates debris, chemicals, sediment, and other contaminants that can adversely affect water quality if the runoff discharge remains untreated. Pathogens, commonly measured using fecal indicator bacteria such as Escherichia coli, enterococci, or fecal coliform, are the most...
Authors
Galen K. Hoogestraat
Hydrogeology and interactions of groundwater and surface water near Mill Creek and the Herring River, Wellfleet, Massachusetts, 2017–18 Hydrogeology and interactions of groundwater and surface water near Mill Creek and the Herring River, Wellfleet, Massachusetts, 2017–18
Groundwater levels and stream stage were monitored by the U.S. Geological Survey, in cooperation with the Friends of Herring River, at 19 sites in the Mill Creek Basin, a tributary of the Herring River in Wellfleet, Massachusetts, on outer Cape Cod, to provide baseline data prior to a proposed restoration of tidal flow to the Herring River estuary at the Cape Cod National Seashore. Tidal...
Authors
John R. Mullaney, Janet R. Barclay, Kaitlin L. Laabs, Katherine D. Lavallee
Spectral analysis to quantify the response of groundwater levels to precipitation — Northwestern United States Spectral analysis to quantify the response of groundwater levels to precipitation — Northwestern United States
Persistent atmospheric patterns that lead to wet and dry seasons and droughts over periods of months to decades and longer-term climate change over periods of decades to millennia affect groundwater resources. Changes in groundwater storage and the resulting groundwater discharge from most aquifers is relatively slow and steady compared to the variability of daily precipitation. The...
Authors
Andrew J. Long, Christopher P. Konrad
Getting to the core of the matter Getting to the core of the matter
The topic of carbon sequestration in coastal salt marshes can serve as the basis of an investigation story line with plenty of authentic relevance and drama! Consider establishing the context with students as an introduction to this lesson. Many resources for teaching about carbon uptake and sequestration in coastal wetlands can be found at the Bringing Wetlands to Market website. Some...
Authors
Meagan Gonneea Eagle
Potential groundwater recharge rates for two subsurface-drained agricultural fields, southeastern Minnesota, 2016–18 Potential groundwater recharge rates for two subsurface-drained agricultural fields, southeastern Minnesota, 2016–18
Subsurface drainage is used to efficiently drain saturated soils to support productive agriculture in poorly drained terrains. Although subsurface drainage alters the water balance for agricultural fields, its effect on groundwater resources and groundwater recharge is poorly understood. In Minnesota, subsurface drainage has begun to increase in southeastern Minnesota, even though this...
Authors
Erik A. Smith, Andrew M. Berg