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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Mission Area Publications
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Filter Total Items: 171158
Bayesian spatio-temporal survival analysis for all types of censoring with application to a wildlife disease study
In this article, we consider modeling arbitrarily censored survival data with spatio-temporal covariates. We demonstrate that under the piecewise constant hazard function, the likelihood for uncensored or right-censored subjects is proportional to the likelihood of multiple conditionally independent Poisson random variables. To address left- or interval-censored subjects, we propose to impute the
Authors
Kehui Yao, Jun Zhu, Daniel J. O'Brien, Daniel P. Walsh
Sacramento River nutrient change study
The Sacramento River Nutrient Change Study (SRiNCS) was developed with input from multiple stakeholders in the Delta Regional Monitoring Program, as well as the State Water Contractors. We tracked the effects of changes in nutrient loading resulting from a short-term wastewater hold at the Sacramento River Wastewater Treatment Plant (SRWTP). In the summer of 2019, scheduled wastewater effluent hol
Authors
Lisa Thompson, Timothy D. Mussen, Michael Cook, Justin Nordin, James Noss, Ursula Bigler, Srividhya Ramamoorthy, Gry Mine Berg, Sara Driscoll, Clifton Herrmann, Wim J. Kimmerer, Toni Ignoffo, Tamara E. C. Kraus, Joseph K. Fackrell, Brian Bergamaschi, Marianne Guerin, Richard Rachiele
Rare earth element sources, end-use demand trends, and hydrometallurgical separations
Rare earth elements are increasing in demand due to the movement towards electrification. In particular, there is a growing need for high performance rare earth permanent magnets for motors and generators used to convert electrical energy to mechanical energy, and vice versa. Current trends in rare earth demand are reviewed and discussed as the specific rare earth metal demand can influence the ch
Authors
James Vaughan, Vitor L. Gontijo, Rick Valenta, Elisa Alonso
Living with wildfire in Genesee Fire Protection District, Jefferson County, Colorado: 2022 data report
Genesee Fire Protection District (GFPD) and members of the Board contacted the Wildfire Research Center (WiRē) early in 2021. GFPD serves a community of approximately 1,500 homes and 3,600 residents. The community borders the south side of I-70 and runs south up varied topography with varied vegetation to approximately 8,000 feet of elevation and is considered to be at extremely high risk of wildf
Authors
Hannah Brenkert-Smith, Dorie Dalton, Jason Puffett, Patricia A. Champ, Christopher M. Barth, James Meldrum, Colleen Donovan, Carolyn Wagner, Julia Goolsby, Chiara Forrester
The During Nearshore Event Experiment (DUNEX): A collaborative coastal community experiment to address coastal resilience
The During Nearshore Event Experiment (DUNEX) was a large-scale coastal field effort focused on improving understanding of during-storm nearshore processes to ultimately develop predictive technologies, engineering solutions, and actions to enhance coastal resilience. The experiments were conducted on the North Carolina coast by a multidisciplinary group of over 30 research scientists from 18 acad
Authors
Jessamin A. Straub, Mary A. Cialone, Britt Raubenheimer, Jenna A. Brown, Nicole Elko, Katherine L. Brodie
Towards improved code-based performance objectives for liquefaction hazard analysis
Ground failure due to liquefaction in loose sand deposits poses substantial risks to the built environment, and has caused significant damage in past earthquakes to a wide range of infrastructure. Advances in liquefaction hazard analysis in practice have largely stagnated in recent years; the state of practice remains rooted in simplified procedures that ignore considerable uncertainties in liquef
Authors
Andrew James Makdisi, Steven L. Kramer
CONUS404: The NCAR-USGS 4-km long-term regional hydroclimate reanalysis over the CONUS
A unique, high-resolution, hydroclimate reanalysis, 40-plus-year (October 1979–September 2021), 4 km (named as CONUS404), has been created using the Weather Research and Forecasting Model by dynamically downscaling of the fifth-generation European Centre for Medium-Range Weather Forecasts (ECMWF) atmospheric reanalysis of the global climate dataset (ERA5) over the conterminous United States. The p
Authors
R. M. Rasmussen, F. Chen, C. H. Liu, K. Ikeda, A. Prein, J. Kim, T. Schneider, A. Dai, D. Gochis, A. Dugger, Y. Zhang, A. Jaye, J. Dudhia, C. He, M. Harrold, L. Xue, S. Chen, A. Newman, E. Dougherty, R. Abolafia-Rozenzweig, N. Lybarger, Roland J. Viger, David P. Lesmes, Katherine Skalak, John Brakebill, Donald Walter Cline, Krista A. Dunne, K. Rasmussen, G. Miguez-Macho
A summary of grizzly bear distribution in Montana: Application of consistent methods in 2022
No abstract available.
Authors
Cecily M. Costello, J. Dellinger, Jennifer Fortin-Noreus, Mark A. Haroldson, Wayne F. Kasworm, J. E. Tiesberg, Frank T. van Manen
Intraspecific trait variability facilitates tree species persistence along riparian forest edges in Southern Amazonia
Tropical forest fragmentation from agricultural expansion alters the microclimatic conditions of the remaining forests, with effects on vegetation structure and function. However, little is known about how the functional trait variability within and among tree species in fragmented landscapes influence and facilitate species’ persistence in these new environmental conditions. Here, we assessed pot
Authors
Leonardo Maracahipes-Santos, Divino Vicente Silvério, Leandro Maracahipes, Marcia N. Macedo, Eddie Lenza, Kathi Jo Jankowski, Michelle Wong, Antônio Carlos Silveiro da Silva, Christopher Neill, Giselda Durigan, Paulo Brando
A review of geology and mining in the Marble Mountains, southeastern California
Mining in the Marble Mountains of southeastern California was active in the earliest 1900s and gradually declined to very few active mines by 1959. Most mining consisted of hard-rock prospects and mines, with a few soft-rock prospects and one mine. The Marble Mountains are a 10 km by 30 km, gently NE-dipping dipping structural block composed of Proterozoic plutonic and metamorphic rocks, Paleozoic
Authors
David C. Buesch, Bruce W. Bridenbecker
A Great Escape: Resource availability and density-dependence shape population dynamics along trailing range edges
Populations along geographical range limits are often exposed to unsuitable climate and low resource availability relative to core populations. As such, there has been a renewed focus on understanding the factors that determine range limits to better predict how species will respond to global change. Using recent theory on range limits and classical understanding of density dependence, we evaluate
Authors
Alexej Sirén, Marketa Zimova, Chris Sutherland, John T. Finn, Jillian R. Kilborn, Rachel M. Cliché, Leighlan S. Prout, L. Scott Mills, Toni Lyn Morelli
Evaluation of alternative groundwater-withdrawal scenarios on water levels in Kingsbury Pond, upper Charles River Basin, eastern Massachusetts
Kingsbury Pond is a glacial kettle pond in the town of Norfolk, Massachusetts, in the Mill River Basin, which is part of the Upper Charles River Basin in eastern Massachusetts. The pond is hydraulically connected to the surrounding groundwater-flow system, and water levels in the pond fluctuate in response to recharge to the aquifer from precipitation and wastewater return flows through septic sys
Authors
Paul M. Barlow, Paul J. Friesz, Jeffrey R. Barbaro