USGS Publications

狠狠噜天天噜日日噜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: 166,028
Year Published: 2020

狠狠噜天天噜日日噜Yosemite National Park, located in the central part of California’s Sierra Nevada mountains, is a glacially carved landscape filled with iconic rock formations such as Cathedral Peak, El Capitan, and Half Dome. Igneous rocks, consisting primarily of variations of granite, granodiorite, and tonalite, make up the majority of the bedrock geology and...

Collins, Brian D.; Sandrone, Federica; Gastaldo, Laurent; Stock, Greg M.; Jaboyedoff, Michel
Collins, B.D., Sandstrone, F., Gastaldo, L., Stock, G.M., and Jaboyedoff, M., 2020, Rock strength properties of granitic rocks in Yosemite Valley, Yosemite National Park, California: U.S. Geological Survey Data Series 1126, 158 p.,

Year Published: 2020

Prior to emergence as fry, salmonid embryos incubating within gravel nests called “redds” are vulnerable to substrate mobilization and lowering of the streambed, a process termed “streambed scour,” during floods. Water managers regulating discharge in salmonid-bearing rivers need information about the magnitude of discharge during which the scour...

Gendaszek, Andrew S.; Ablow, Elizabeth; Marks, Derek
Gendaszek, A.S., Ablow, E., and Marks, D., 2020, Streambed scour of salmon (Oncorhynchus spp.) and steelhead (Oncorhynchus mykiss) redds in the South Fork Tolt River, King County, Washington: U.S. Geological Survey Scientific Investigations Report 2020–5044, 20 p.,

Year Published: 2020

狠狠噜天天噜日日噜Most wildlife biologists, technicians, and veterinarians complete their tasks safely and uneventfully every day. However, some significant risks exist in this line of work, and injuries, illnesses, and accidental deaths among wildlife workers do occur. Aviation accidents (airplane and helicopter), drownings, and car and truck accidents are the...

Richgels, Katherine L. D.; Gibbs, Samantha E.J.; Wild, Margaret A.; Taylor, Tegwin; Buttke, Danielle
Taylor, T., and Buttke, D., 2020, Safe work practices for working with wildlife: U.S. Geological Survey Techniques and Methods, book 15, chap. C2, 26 p.,

Year Published: 2020

Structured decision making is a systematic, transparent process for improving the quality of complex decisions by identifying measurable management objectives and feasible management actions; predicting the potential consequences of management actions relative to the stated objectives; and selecting a course of action that maximizes the total...

Neckles, Hilary A.; Lyons, James E.; Nagel, Jessica L.; Adamowicz, Susan C.; Mikula, Toni; Braudis, Brian; Hanlon, Heidi
Neckles, H.A., Lyons, J.E., Nagel, J.L., Adamowicz, S.C., Mikula, T., Braudis, B., and Hanlon, H., 2020, Optimization of tidal marsh management at the Cape May and Supawna Meadows National Wildlife Refuges, New Jersey, through use of structured decision making: U.S. Geological Survey Open-File Report 2020–1055, 41 p.,

Year Published: 2020

狠狠噜天天噜日日噜This report provides an overview of model-based climate science in a risk management context. In addition, it summarizes how the U.S. Geological Survey (USGS) will continue to follow best scientific practices and when and how the results of this research will be delivered to the U.S. Department of the Interior (DOI) and other stakeholders to...

Terando, Adam; Reidmiller, David; Hostetler, Steven W.; Littell, Jeremy S.; Beard, T. Douglas; Weiskopf, Sarah R.; Belnap, Jayne; Plumlee, Geoffrey S.
Attribution: , Environmental Health
Terando, A., Reidmiller, D., Hostetler, S.W., Littell, J.S., Beard, T.D., Jr., Weiskopf, S.R., Belnap, J., and Plumlee, G.S., 2020, Using information from global climate models to inform policymaking—The role of the U.S. Geological Survey: U.S. Geological Survey Open-File Report 2020–1058, 25 p.,

Year Published: 2020

狠狠噜天天噜日日噜The novel β-coronavirus, SARS-CoV-2, may pose a threat to North American bat populations if bats are exposed to the virus through interaction with humans, if the virus can subsequently infect bats and be transmitted among them, and if the virus causes morbidity or mortality in bats. Further, if SARS-CoV-2 became established in bat populations, it...

Runge, Michael C.; Campbell Grant, Evan H.; Coleman, Jeremy T. H.; Reichard, Jonathan D.; Gibbs, Samantha E. J.; Cryan, Paul M.; Olival, Kevin J.; Walsh, Daniel P.; Blehert, David S.; Hopkins, M. Camille; Sleeman, Jonathan M.
Runge, M.C., Grant, E.H.C., Coleman, J.T.H., Reichard, J.D., Gibbs, S.E.J., Cryan, P.M., Olival, K.J., Walsh, D.P., Blehert, D.S., Hopkins, M.C., and Sleeman, J.M., 2020, Assessing the risks posed by SARS-CoV-2 in and via North American bats—Decision framing and rapid risk assessment: U.S. Geological Survey Open-File Report 2020–1060, 43 p.,

Year Published: 2020

The Kansas River provides drinking water for multiple cities in northeastern Kansas and is used for recreational purposes. Thus, improving the scientific knowledge of streamflow velocities and traveltimes will greatly aid in water-treatment plans and response to critical events and threats to water supplies. Dye-tracer studies are usually done to...

Davis, Chantelle A.; Lukasz, Bradley S.; May, Madison R.
Davis, C.A., Lukasz, B.S., and May, M.R., 2020, Dye-tracing plan for verifying the Kansas River time-of-travel model: U.S. Geological Survey Open-File Report 2020–1039, 10 p.,

Year Published: 2020

This paper outlines the development and demonstration of a new tool, TOUGH2–ChemPlugin (T2CPI) for predicting rock–water–CO2 interaction following injection of supercritical CO2 into a heterogeneous carbonate system. Specifically, modeling capabilities of TOUGH2, which examines multiphase flow and supercritical CO2 behavior, were...

Kumar, Ram; Roberts-Ashby, Tina L.; Berger, Peter M.; Cunningham, Jeffrey A.; Kumar, Ram; Blondes, Madalyn S.

Year Published: 2020

狠狠噜天天噜日日噜Evaluation of the diagnostic sensitivity (DSe) and specificity (DSp) of tests for infectious diseases in wild animals is challenging. The purpose of this review was to identify current gaps in test validation studies for infectious diseases in wild mammals. First, we conducted a systematic literature review of test validation studies for OIE-...

Beibei, Jia; Colling, David; Stallknecht, David E.; Blehert, David S.; Bingham, John; Crossley, Beate; Eagles, Debbie; Gardner, Ian A

Year Published: 2020

The U.S. Geological Survey’s Precipitation-Runoff Modeling System (PRMS) is widely used to simulate the effects of climate, topography, land cover, and soils on landscape-level hydrologic response and streamflow. This study developed, calibrated, and assessed a PRMS model that simulates near-native or naturalized streamflow conditions in the Upper...

Chavarria, Shaleene B.; Moeser, C. David; Douglas-Mankin, Kyle R.
Chavarria, S.B., Moeser, C.D., and Douglas-Mankin, K.R., 2020, Application of the Precipitation-Runoff Modeling System (PRMS) to simulate near-native streamflow in the Upper Rio Grande Basin: U.S. Geological Survey Scientific Investigations Report 2020–5026, 38 p.,

Year Published: 2020

Keys to Chestnut-collared Longspur (Calcarius ornatus) management are providing and maintaining native pastures with fairly short overall vegetation and sparse litter accumulation but with areas of taller and denser vegetation and accumulated litter for nesting, and tailoring grazing intensity to local conditions. Chestnut-collared Longspurs have...

Shaffer, Jill A.; Igl, Lawrence D.; Johnson, Douglas H.; Sondreal, Marriah L.; Goldade, Christopher M.; Nenneman, Melvin P.; Wooten, Travis L.; Euliss, Betty R.
Shaffer, J.A., Igl, L.D., Johnson, D.H., Sondreal, M.L., Goldade, C.M., Nenneman, M.P., Wooten, T.L., and Euliss, B.R., 2020, The effects of management practices on grassland birds—Chestnut-collared Longspur (Calcarius ornatus), chap. X of Johnson, D.H., Igl, L.D., Shaffer, J.A., and DeLong, J.P., eds., The effects of management practices on grassland birds: U.S. Geological Survey Professional Paper 1842, 23 p.,

Year Published: 2020

Microscopic solid bitumen is a petrographically-defined secondary organic matter residue produced during petroleum generation and subsequent oil transformation. The presence of solid bitumen impacts many reservoir properties including porosity, permeability, and hydrocarbon generation and storage, amongst others. Furthermore, solid bitumen...

Jubb, Aaron M.; Birdwell, Justin E.; Hackley, Paul C.; Hatcherian, Javin J.; Qu, Jing