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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.

Filter Total Items: 175939

Quantifying southern sea otter (Enhydra lutris nereis) reactions to a quadcopter drone in central California Quantifying southern sea otter (Enhydra lutris nereis) reactions to a quadcopter drone in central California

Drones are useful for wildlife research and management, but they can cause disturbance and harassment to wildlife. Sea otters (Enhydra lutris) are candidates for drone-based observation and monitoring but are vulnerable to disturbance. No studies have evaluated drone effects on sea otter behavior, but based on prior disturbance studies, we hypothesized: (1) sea otters would exhibit...
Authors
Colleen Young, Julie L. Yee, Gena Bentall, Michelle M. Staedler, Lilian P. Carswell, Margaret Daly

VegET evapotranspiration for Africa: Continental-scale simulation, multi-product evaluation, and drought assessment VegET evapotranspiration for Africa: Continental-scale simulation, multi-product evaluation, and drought assessment

Study regionContinental Africa, encompassing diverse climatic zones—tropical, arid, and temperate—and spanning major transboundary river basins such as the Nile, Niger, Congo, Volta, and Zambezi River Basins. The region exhibits pronounced hydroclimatic gradients and heterogeneous land use systems ranging from rainfed croplands and rangelands to dense tropical forests and irrigated...
Authors
Komlavi Akpoti, Naga Manohar Velpuri, Mansoor Leh, Stefanie Kagone, Kirubel Mekonnen, Afua Owusu, Mulugeta Tadesse, Paranamana T. Prabhath, Lahiru Madushanka, Tharindu Perera, Gabriel Edwin Lee Parrish, Vinay Nangia, Souleymane Sy, Jan Bliefernicht, Samuel Guug, Abdulkarim Seid, Gabriel B. Senay

Evaluation of stream capture related to groundwater pumping, middle Humboldt River Basin, Nevada Evaluation of stream capture related to groundwater pumping, middle Humboldt River Basin, Nevada

Historical, future, and potential stream capture from groundwater pumping in the middle Humboldt River Basin (MHRB), Nevada, is estimated using a calibrated numerical groundwater flow model. The model was developed to estimate (1) stream capture, which is the change in flux between the groundwater system and the Humboldt River and tributaries, and (2) change in streamflow, which is the...
Authors
Kyle W. Davis, William G. Eldridge, Kip K. Allander, David E. Prudic, Murphy A. Gardner, Michael T. Pavelko, Cara A. Nadler

Predictable seismic cycles result from structural rupture barriers on oceanic transform faults Predictable seismic cycles result from structural rupture barriers on oceanic transform faults

Earthquakes of magnitude (M) >5.5 on oceanic transform faults (OTFs) repeatedly rupture the same locked patches, sometimes quasiperiodically. These patches are separated by “barriers” that halt earthquake propagation and slip mostly aseismically. However, the physical processes governing this systematic behavior remain unclear. We analyzed two barriers along the Gofar transform fault...
Authors
Jianhua Gong, Wenyuan Fan, Jeffrey J. McGuire, Mark D. Behn, Jessica M. Warren, Emily Roland, M. S. Boettcher, J. A. Collins, Y. Liu, C. R. German

Syn-magmatic subsidence during the early stages of continental rifting in the Mesoproterozoic—A reanalysis of legacy data for the Midcontinent Rift, western Lake Superior Syn-magmatic subsidence during the early stages of continental rifting in the Mesoproterozoic—A reanalysis of legacy data for the Midcontinent Rift, western Lake Superior

The Midcontinent Rift system (ca. 1.1 Ga) is a 2000-km-long series of elongated volcanic and sedimentary troughs and associated intrusive centers exposed chiefly in the Lake Superior region of North America. The rift system represents a long history of intense magmatism and subsequent sedimentation that was arrested by far-field tectonic events before sea-floor spreading was established...
Authors
V. J. Grauch, Laurel G. Woodruff, Samuel J. Heller, Esther K. Stewart

Practical guidance for engaging end-users and experts in developing scientific tools Practical guidance for engaging end-users and experts in developing scientific tools

This report provides actionable guidance for scientists developing scientific tools that inform on-the-ground decision making. Scientific tools, in the context of this report, are technology or protocols that help practitioners collect and analyze their own data, and information products and web tools that practitioners could use to inform decisions. Engaging end-users and fellow experts...
Authors
Kaylin R. Clements, James J. English, Emily J. Wilkins, Megan A. Moore, Rudy Schuster
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