Publications
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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Glass electron microprobe analyses methods, precision and accuracy for tephra studies in Alaska Glass electron microprobe analyses methods, precision and accuracy for tephra studies in Alaska
No abstract available.
Authors
Matthew W. Loewen, Kristi L. Wallace, Jordan Edward Lubbers, Dawn Catherine Sweeney Ruth, Pavel Izbekov, Jessica Larsen, Nathan Graham
Annotated bibliography of scientific research on greater sage-grouse published from October 2019 to July 2022 Annotated bibliography of scientific research on greater sage-grouse published from October 2019 to July 2022
Integrating recent scientific knowledge into management decisions supports effective natural resource management and can lead to better resource outcomes. However, finding and accessing scientific knowledge can be time consuming and costly. To assist in this process, the U.S. Geological Survey (USGS) created a series of annotated bibliographies on topics of management concern for western...
Authors
Elisabeth C. Teige, Logan M. Maxwell, Samuel E. Jordan, Tait K. Rutherford, Emma I. Dietrich, Ella M. Samuel, Alexandra L. Stoneburner, Nathan J. Kleist, Jennifer K. Meineke, Lea B. Selby, Alison C. Foster, Sarah K. Carter
A global long-term daily reanalysis of reference evapotranspiration for drought and food-security monitoring A global long-term daily reanalysis of reference evapotranspiration for drought and food-security monitoring
NOAA has developed a global reference evapotranspiration (ET0) reanalysis using the UN Food and Agriculture Organization formulation (FAO-56) of the Penman-Monteith equation forced by MERRA phase 2 (MERRA2) meteorological and radiative drivers. The NOAA ET0 reanalysis is provided daily from January 1, 1980 to the near-present at a resolution of 0.5° latitude × 0.625° longitude. The...
Authors
Mike Hobbins, Timen Jansma, Daniel Sarmiento, Amy McNally, Tamuka Magadzire, Harikishan Jayanthi, Will Turner, Andrew Hoell, Greg Husak, Gabriel B. Senay, Olena Boiko, Michael Budde, Pamella Magone, Candida Dewes
Intestinal lesions and parasites associated with senescence and prespawn mortality in Chinook Salmon (Oncorhynchus tshawytscha) Intestinal lesions and parasites associated with senescence and prespawn mortality in Chinook Salmon (Oncorhynchus tshawytscha)
Prespawn mortality (PSM) presents a major problem for the recovery of spring Chinook Salmon (Oncorhynchus tshawytscha) populations. In the Willamette River, Oregon, PSM exceeds 90% in some years but factors explaining it are not well understood. We examined intestinal tissue samples using histological slides from over 783 spring Chinook Salmon collected between 2009 and 2021, which...
Authors
S. Nervino, T. Polley, James T. Peterson, C.B. Schreck, M.L. Kent, J.D. Alexander
Effect of feeding history on metabolic rate of largemouth bass (Micropterus nigricans): implications for bioenergetics models Effect of feeding history on metabolic rate of largemouth bass (Micropterus nigricans): implications for bioenergetics models
Metabolic rate is a key parameter in fish energy budgets that strongly influences the output of bioenergetics models. In this study, we tested the hypothesis that metabolic rate varies with growth history of age-1 largemouth bass Micropterus nigricans Cuvier, 1828. Two groups of fish were fed alternating maintenance or ad libitum rations of fathead minnow Pimephales promelas Rafinesque...
Authors
Steven H. Ranney, Steven R. Chipps, David H. Wahl
Monitoring population-level foraging distribution of a marine migratory species from land: Strengths and weaknesses of the isotopic approach on the Northwest Atlantic loggerhead turtle aggregation Monitoring population-level foraging distribution of a marine migratory species from land: Strengths and weaknesses of the isotopic approach on the Northwest Atlantic loggerhead turtle aggregation
Assessing the linkage between breeding and non-breeding areas has important implications for understanding the fundamental biology of and conserving animal species. This is a challenging task for marine species, and in sea turtles a combination of stable isotope analysis (SIA) and satellite telemetry has been increasingly used. The Northwest Atlantic (NWA) loggerhead (Caretta caretta)...
Authors
Simona A. Ceriani, Susan Murasko, David S. Addison, David Anderson, Greg Curry, Nicole A. Desjardin, Scott F. Eastman, Daniel R. Evans, Nancy Evou, Mariana M.P.B. Fuentes, Matthew H. Godfrey, Kristen Hart, Paul Hillbrand, Sarah E. Hirsch, Cody R. Mott, Katherine L. Mansfield, Kristen T. Mazzarella, Sarah V. Norris, S. Michelle Pate, Katrina F. Phillips, Kirt W. Rusenko, Brian M. Shamblin, Amber Stevenson, Kelly A. Sloan, Anton D. Tucker, Ryan C. Welsh, Paolo Casale
Mountain glaciers influence biogeochemical and ecological characteristics of high-elevation lakes across the northern Rocky Mountains, USA Mountain glaciers influence biogeochemical and ecological characteristics of high-elevation lakes across the northern Rocky Mountains, USA
Mountain glaciers are retreating rapidly due to climate change, leading to the formation of downstream lakes. However, little is known about the physical and biogeochemical conditions in these lakes across a range of glacial influence. We surveyed alpine lakes fed by both glacial and snowpack meltwaters and those fed by snowpack alone to compare nutrient concentrations, stoichiometry...
Authors
Joseph Vanderwall, Clint C. Muhlfeld, Tyler Tappenback, Joe Giersch, Ze Ren, Jim Elser
Going with the floe: Sea-ice movement affects distance and destination during Adélie penguin winter movements Going with the floe: Sea-ice movement affects distance and destination during Adélie penguin winter movements
Seasonal migration, driven by shifts in annual climate cycles and resources, is a key part of the life history and ecology of species across taxonomic groups. By influencing the amount of energy needed to move, external forces such as wind and ocean currents are often key drivers of migratory pathways exposing individuals to varying resources, environmental conditions, and competition...
Authors
Dennis Jongsomjit, Amelie Lescroël, Annie Schmidt, Simeon Lisovski, David G. Ainley, Ellen Hines, Megan Elrod, Katie M. Dugger, Grant Ballard
Multiple-well monitoring site adjacent to the Elk Hills Oil Field, Kern County, California Multiple-well monitoring site adjacent to the Elk Hills Oil Field, Kern County, California
Introduction The Elk Hills Oil Field is one of the many fields selected for regional groundwater mapping and monitoring by the California State Water Resources Control Board as part of the Oil and Gas Regional Monitoring Program (California State Water Resources Control Board, 2015, 2022b; U.S. Geological Survey, 2022a). The U.S. Geological Survey (USGS), in cooperation with the...
Authors
Rhett R. Everett, Janice M. Gillespie, Mackenzie M. Shepherd, Andrew Y. Morita, Maryanne Bobbitt, Christopher A. Kohel, John G. Warden
Bathymetric, hydrodynamic, biological, and water-quality characteristics of a nearshore area of the Laguna Madre near South Padre Island, Texas, 2021–22 Bathymetric, hydrodynamic, biological, and water-quality characteristics of a nearshore area of the Laguna Madre near South Padre Island, Texas, 2021–22
A variety of data were collected by the U.S. Geological Survey, in cooperation with the City of South Padre Island, to better understand the physical and biological habitat in Tompkins Channel and adjacent seagrass beds in the lower Laguna Madre, Texas, where the construction of berms has been proposed in the City of South Padre Island’s Shoreline Master Plan. These berms would be used...
Authors
Stephen P. Opsahl, Julio Ines Beltran, Darwin J. Ockerman
An agricultural package for MODFLOW 6 using the Application Programming Interface An agricultural package for MODFLOW 6 using the Application Programming Interface
An agricultural water use package has been developed for MODFLOW 6 using the MODFLOW Application Programming Interface (API). The MODFLOW API Agricultural Water Use Package (API-Ag) was based on the approach to simulate irrigation demand in the MODFLOW-NWT and GSFLOW Agricultural Water Use (AG) Package. The API-Ag Package differs from the previous approach by implementing new features...
Authors
Joshua Larsen, Christian D. Langevin, Joseph D. Hughes, Richard G. Niswonger
Using high-frequency monitoring data to quantify city-wide suspended-sediment load and evaluate TMDL goals Using high-frequency monitoring data to quantify city-wide suspended-sediment load and evaluate TMDL goals
Excess sediment is a common reason water bodies in the USA become listed as impaired resulting in total maximum daily loads (TMDL) that require municipalities to invest millions of dollars annually on management practices aimed at reducing suspended-sediment loads (SSLs), yet monitoring data are rarely used to quantify SSLs and track TMDL progress. A monitoring network was created to...
Authors
Samuel Adam Miller, James S. Webber, John D. Jastram, Marcus F Aguilar