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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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Use of a numerical groundwater-flow model and projected climate scenarios to simulate the effects of future climate conditions on base flow for reach 1 of the Washita River alluvial aquifer and Foss Reservoir storage, western Oklahoma Use of a numerical groundwater-flow model and projected climate scenarios to simulate the effects of future climate conditions on base flow for reach 1 of the Washita River alluvial aquifer and Foss Reservoir storage, western Oklahoma

To better understand the relation between climate variability and future groundwater resources in reach 1 of the Washita River alluvial aquifer and Foss Reservoir in western Oklahoma, the U.S. Geological Survey, in cooperation with the Bureau of Reclamation, used a previously published numerical groundwater-flow model and climate-model data to investigate changes in base flow and...
Authors
Laura G. Labriola, John H. Ellis, Subhrendu Gangopadhyay, Pierre-Emmanuel Kirstetter, Yang Hong
By
Oklahoma-Texas Water Science Center

Power analysis of water quality of standing water bodies in the Pacific Island Network, 2009–2017 Power analysis of water quality of standing water bodies in the Pacific Island Network, 2009–2017

The National Park Service (NPS) Inventory and Monitoring Division (IMD) aims to provide data on park ecosystems' health to guide management decisions. Since 2007, NPS IMD has monitored water quality in marine areas, streams, anchialine pools, wetlands, and lakes in the Pacific Island Network (PACN) national parks. To maintain long-term monitoring program efficiency, protocols are...
Authors
P. Marcos Gorresen, Richard J. Camp, David F Raikow
By
Ecosystems Mission Area, Pacific Island Ecosystems Research Center

Influence of stream temperature and human disturbance on prespawn mortality of Chinook Salmon in the Willamette River basin Influence of stream temperature and human disturbance on prespawn mortality of Chinook Salmon in the Willamette River basin

Objective Premature mortality of adult female Chinook Salmon Oncorhynchus tshawytscha is a major barrier to population recovery. The Willamette River basin, Oregon, typifies the problems that are faced by fishery managers in the Pacific Northwest (USA). Adult salmon are trapped and transported upstream of dams to access historical spawning grounds, but annual rates of prespawn mortality...
Authors
Katherine C. Carey, Michael L. Kent, Carl B. Schreck, Claire E. Couch, Luke Whitman, James T. Peterson
By
Cooperative Research Units

Cave climate 100 meters below the surface in the pseudokarst of the Kilauea Southwest Rift Zone, Hawaii Cave climate 100 meters below the surface in the pseudokarst of the Kilauea Southwest Rift Zone, Hawaii

Kīlauea volcano hosts numerous pit craters that are inferred to have formed in competent bedrock (lava flows with minor tephra and other sediments), including Wood Valley Pit Crater. The Wood Valley Pit Crater is a 50-meter-deep, nearly circular pit that includes access to a cave entrance, which provides an opportunity to monitor cave climate throughout a cave that is ordinarily...
Authors
Timothy N. Titus, Glen E. Cushing, Chris Okubo, Kaj E. Williams
By
Natural Hazards Mission Area, Astrogeology Science Center

Silver carp experience metabolic and behavioral changes when exposed to water from the Chicago Area Waterway Silver carp experience metabolic and behavioral changes when exposed to water from the Chicago Area Waterway

One of the hallmarks of invasive species is their propensity to spread. Removing an invasive species after establishment is virtually impossible, and so considerable effort is invested in preventing the range expansion of invaders. Silver carp (Hypophthalmichthys molitrix) were discovered in the Mississippi River in 1981 and have spread throughout the basin. Despite their propensity to...
Authors
Amy E. Schneider, Andrew J. Esbaugh, Aaron R. Cupp, C. D. Suski
By
Ecosystems Mission Area, Upper Midwest Environmental Sciences Center

The status and conservation needs of the Micronesian Megapode (Megapodius laperouse laperouse) across the Mariana archipelago The status and conservation needs of the Micronesian Megapode (Megapodius laperouse laperouse) across the Mariana archipelago

Context Accurate baseline data for wildlife populations are important to track trends of these populations over time and to identify threats to their long-term persistence. Aims We aimed to assess the status and distribution of the little studied megapode (Megapodius laperouse laperouse) across the Mariana Islands. Methods Using passive and call playback facilitated surveys in 2008...
Authors
Paul Radley, Richard J. Camp, Frederick A Amidon, Ann P. Marshall, P. Marcos Gorresen, Curt T. Kessler
By
Ecosystems Mission Area, Pacific Island Ecosystems Research Center
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