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Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Sources and risk factors for nitrate, pathogens, and fecal contamination of private wells in rural southwestern Wisconsin, USA Sources and risk factors for nitrate, pathogens, and fecal contamination of private wells in rural southwestern Wisconsin, USA

Household well water can be degraded by contaminants from the land's surface, but private well owners lack means to protect the source water from neighboring disturbances. Rural residents of southwestern Wisconsin, USA, rely on private well water, and the combination of land use and fractured carbonate bedrock makes groundwater vulnerable to contamination. To identify the extent, sources...
Authors
Joel P. Stokdyk, Aaron D. Firnstahl, Kenneth Bradbury, Maureen A. Muldoon, Burney Kieke Jr., Mark A. Borchardt
By
Upper Midwest Water Science Center, Laboratory for Infectious Disease and the Environment

Nonstationary flood frequency analysis using regression in the north-central United States Nonstationary flood frequency analysis using regression in the north-central United States

Traditional flood frequency methods assume that the statistical properties of peak streamflow do not change with time and may not be appropriate for many areas in the north-central United States. This study examines a nonstationary flood frequency analysis method that uses ordinary least squares linear regression to estimate flood magnitudes at U.S. Geological Survey streamgages that...
Authors
Sara B. Levin
By
Upper Midwest Water Science Center

The crystalline silica respiratory hazard from rhyolitic lava dome eruptions in New Zealand's Taupo Volcanic Zone: A case study from the 1315 CE Kaharoa eruption The crystalline silica respiratory hazard from rhyolitic lava dome eruptions in New Zealand's Taupo Volcanic Zone: A case study from the 1315 CE Kaharoa eruption

The rhyolitic Kaharoa 1315 CE eruption was a complex, long-lived event from Tarawera volcano, New Zealand. Explosive phases were followed by around 5 years of lava dome extrusion and collapse which produced block-and-ash flows (BAF). Lava domes generate crystalline silica in the form of cristobalite, and rhyolitic magmas often contain quartz phenocrysts. Fine-grained ash containing...
Authors
Claire J. Horwell, Helen M. Emerson, Paul Ashwell, David Damby, Steve Self, Claire Nattrass, Rebecca J. Carey, Bruce F. Houghton
By
Volcano Hazards Program, Volcano Science Center

Status and trends of the Lake Huron prey fish community, 1976-2024 Status and trends of the Lake Huron prey fish community, 1976-2024

The U. S. Geological Survey-Great Lakes Science Center has monitored annual changes in the offshore (depth > 9m) prey fish community of Lake Huron since 1973. Monitoring of prey fish populations in Lake Huron is based on a bottom trawl survey that targets demersal species (i.e., those predominantly or intermittently associated with the lake bottom) and an acoustic-midwater trawl survey...
Authors
Darryl W. Hondorp, Robin L. DeBruyne, Cory Brant, Peter C. Esselman, Timothy P. O’Brien
By
Ecosystems Mission Area, Great Lakes Science Center

Airborne geophysical analysis to decipher salinization for coastal Louisiana Airborne geophysical analysis to decipher salinization for coastal Louisiana

Coastal Louisiana is known for saltwater intrusion that threatens wetlands, aquifers, and rivers. However, the extent of saltwater intrusion is not well understood. This study develops an innovative framework with airborne electromagnetic (AEM) data to map chloride concentration distributions for wetlands in the Mississippi River deltaic plain and Chenier plain as well as for the...
Authors
Michael Attia, Frank T.-C. Tsai, Shuo Yang, Burke J. Minsley, Wade Kress
By
Geology, Geophysics, and Geochemistry Science Center

U.S. Geological Survey Colorado River Basin science and technology collaboration meetings on drought (2021)—Synthesis of findings U.S. Geological Survey Colorado River Basin science and technology collaboration meetings on drought (2021)—Synthesis of findings

Ongoing, prolonged, and severe drought and water overuse during the first two decades of the 21st century have reduced water supplies of the Colorado River Basin, with effects cascading to ecosystems and human communities throughout the basin. In June and July 2021, the U.S. Geological Survey (USGS) Colorado River Basin Actionable and Strategic Integrated Science and Technology...
Authors
Adrian Pierre-Frederic Monroe, Jason S. Alexander, Eric D. Anderson, Patrick J. Anderson, William J. Andrews, Jessica M. Driscoll, Rebecca J. Frus, Joseph A. Hevesi, Daniel K. Jones, Kathryn A. Thomas, Anne C. Tillery, Alicia A. Torregrosa, Katharine G. Dahm
By
Ecosystems Mission Area, Fort Collins Science Center, Colorado River Basin: Actionable and Strategic Integrated Science and Technology, Drought
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