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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Filter Total Items: 175006
One-hundred fundamental, open questions to integrate methodological approaches in lake ice research One-hundred fundamental, open questions to integrate methodological approaches in lake ice research
The rate of technological innovation within aquatic sciences outpaces the collective ability of individual scientists within the field to make appropriate use of those technologies. The process of in situ lake sampling remains the primary choice to comprehensively understand an aquatic ecosystem at local scales; however, the impact of climate change on lakes necessitates the rapid...
Authors
Joshua Culpepper, Sapna Sharma, Grant Gunn, Madeline Magee, Michael Frederick Meyer, Eric Anderson, Christoper D. Arp, Sarah Cooley, Wayana Dolan, Hilary Dugan, Claude R. Duguay, Benjamin C. Jones, Georgiy Kirillin, Robert Ladwig, Matti Lepparanta, Di Long, John J. Magnuson, Tamlin Pavelsky, Sebastiano Piccolroaz, Dale M. Robertson, Bethel Steele, Manu Tom, Gesa A. Weyhenmeyer, R. Iesytn Woolway, Marguerite A. Xenopoulos, Xiao Yang
Reproductive characteristics and spawning potential ratio modeling of a vulnerable riverine specialist in the lower unchannelized Missouri River, USA Reproductive characteristics and spawning potential ratio modeling of a vulnerable riverine specialist in the lower unchannelized Missouri River, USA
Reproductive characteristics for populations of imperiled, non-game species are not regularly studied but may be important for identifying factors associated with their population sustainability. Understanding reproductive traits of vulnerable species, particularly long-lived species, may provide insight for implementing management actions to respond to potential overharvest. This study...
Authors
Lindsey A.P. LaBrie, Tanner L. Carlson, Jeff S. Wesner, Chelsey A. Pasbrig, Steven R. Chipps, Benjamin J. Schall
Occurrence of pesticides in Oregon coastal waters Occurrence of pesticides in Oregon coastal waters
Pesticides are used globally for a wide range of applications including agricultural, forestry, roadsides, freshwater systems, and personal use. While pesticides have ensured efficient crop production, they are frequently transported away from application sites and are found in almost all terrestrial and aquatic environments. Pesticides are frequently detected in watersheds and rivers...
Authors
Bria Bleil, Elise F. Granek, Michelle L. Hladik
Overview of The SCEC/USGS Community Stress Drop Validation Study using the 2019 Ridgecrest earthquake sequence Overview of The SCEC/USGS Community Stress Drop Validation Study using the 2019 Ridgecrest earthquake sequence
We present initial findings from the ongoing Community Stress Drop Validation Study to compare spectral stress‐drop estimates for earthquakes in the 2019 Ridgecrest, California, sequence. This study uses a unified dataset to independently estimate earthquake source parameters through various methods. Stress drop, which denotes the change in average shear stress along a fault during...
Authors
Rachel E. Abercrombie, Annemarie S. Baltay Sundstrom, Shanna Chu, Taka’aki Taira, Dino Bindi, Oliver S. Boyd, Xiaowei Chen, Elizabeth S. Cochran, Emma Devin, Douglas Dreger, William Ellsworth, Fan Wenyuan, Rebecca Harrington, Yihe Huang, Kilian Kemna, Meichen Liu, Adrien Oth, Grace Alexandra Parker, Colin Pennington, Matteo Picozzi, Christine J. Ruhl, Peter Shearer, Daniele Spallarossa, Daniel Trugman, Ian Vandevert, Qimin Wu, Clara Yoon, Ellen Yu, Gregory C. Beroza, Tom Eulenfeld, Trey Knudson, Kevin Mayeda, Paola Morasca, James S. Neely, Jorge I. Roman-Nieves, Claudio Satriano, Mariano Supino, William R. Walter, Ralph Archuleta, Gail Marie Atkinson, Giovanna Calderoni, Chen Ji, Hongfeng Yang, Jiewen Zhang
Maintaining frog monitoring and population on the Las Cienegas National Conservation Area Maintaining frog monitoring and population on the Las Cienegas National Conservation Area
This report summarizes and analyzes the data collected on the Chiricahua Leopard Frog (CLF) populations on the Las Ciénegas National Conservation Area (LCNCA) in southeast Arizona, U.S.A., during the reporting period covered under this funding agreement from September 2020 through October 2024 and place this analysis in historical context of the previous monitoring efforts. The major...
Authors
Javan Mathias Bauder, Chris L. Prewitt, David Hall
Introduction to the special section on improving measurements of earthquake source parameters Introduction to the special section on improving measurements of earthquake source parameters
Earthquake source parameters such as magnitude, seismic moment, source dimension, stress drop, and radiated energy are fundamental to understanding earthquake physics, and are also key ingredients in earthquake ground‐motion modeling, rupture simulation, and statistical seismology. However, the uncertainties in these parameters estimated from the radiated seismic wavefield are large due...
Authors
Annemarie S. Baltay Sundstrom, Rachel E. Abercrombie, Adrien Oth, Takahiko Uchide
Gillnet sampling methods for monitoring status and trends of Clear Lake Hitch in Clear Lake, Lake County, California Gillnet sampling methods for monitoring status and trends of Clear Lake Hitch in Clear Lake, Lake County, California
The Clear Lake Hitch (Lavinia exilicauda chi) is a minnow endemic to Clear Lake, Lake County, California. This species is listed as a threatened species under the California Endangered Species Act and has been petitioned for listing under the United States Endangered Species Act. In 2017, the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service, initiated a...
Authors
Frederick Feyrer, Matthew J. Young, Brock Huntsman, Veronica Violette, Justin K. Clause, Jordan Buxton, Danielle Palm, Marissa L. Wulff, Jeff Gronemyer, Luis Santana
Utility of a swath laser rangefinder for characterizing mass movement flow depth and landslide initiation Utility of a swath laser rangefinder for characterizing mass movement flow depth and landslide initiation
Mass movements such as debris flows and landslides are some of the deadliest and most destructive natural hazards occurring mostly in alpine and volcanic settings. With ever-growing populations located downslope from known debris flow channels, early warning systems can help prevent loss of life. Geophysical and technological advances have improved monitoring and detection capabilities...
Authors
Maciej Obryk, Emily Christina Bedinger, Alexandra M. Iezzi, Emily H Bryant, Kate E. Allstadt, David L. George, Benjamin B. Mirus
An early Holocene wet period in the southwestern United States An early Holocene wet period in the southwestern United States
Multiple generations of spring-fed streams traversed ∼800 km2 of the Las Vegas Valley in southern Nevada between ca. 10.9 ka and 8.5 ka, depositing an extensive tufa network. The scale of this network and diversity of tufa morphologies is novel in North America and offers an opportunity to obtain quantitative paleoclimate data for the region during the early Holocene. We determined...
Authors
Kathleen B. Springer, Adam M. Hudson, Jeffrey S. Pigati, Katharine W. Huntington, Andrew J. Schauer
Spatially explicit capture-mark-recapture to evaluate demographic status of the Louisiana black bear Spatially explicit capture-mark-recapture to evaluate demographic status of the Louisiana black bear
Louisiana black bears (Ursus americanus luteolus) occur in semi-isolated fragments of bottomland hardwood forest in the lower Mississippi Alluvial Valley and were listed as threatened under the United States Endangered Species Act in 1992. A population viability analysis based on radio-telemetry and capture-mark-recapture (CMR) data collected from 2002 to 2012 revealed that the...
Authors
Joseph D. Clark, Heidi L. Adams, Ben Augustine, John R. Berry, Dustin Champagne, Maria Davidson, John Hanks, Jared S. Laufenberg, Sean M. Murphy
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
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