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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: 175538

Regional patterns in U.S. wildfire activity: The critical role of ignition sources Regional patterns in U.S. wildfire activity: The critical role of ignition sources

As extreme wildfires increase globally, understanding their causes is critical for effective management. While climate and housing growth are commonly linked to rising fire activity, the role of specific ignition sources—particularly human-caused—remains understudied. Analyzing a 79-year dataset (1940–2019) from U.S. Forest Service regions across the continental United States, we found...
Authors
Alexandra D. Syphard, Jon E. Keeley, Erin Conlisk, Mike Gough

Causal effects verses causal mechanisms: Two traditions with different requirements and contributions towards causal understanding Causal effects verses causal mechanisms: Two traditions with different requirements and contributions towards causal understanding

The scientific aspiration of building causal knowledge has received little explicit discussion in ecology despite its fundamental importance. When methods are described as ‘causal’, emphasis is increasingly placed on statistical techniques for isolating associations so as to quantify causal effects. In contrast, natural scientists have historically approached the pursuit of causal...
Authors
James Grace, Nick Huntington-Klein, E. William Schweiger, Melinda Martinez, Michael Osland, Laura C. Feher, Glenn R. Guntenspergen, Karen M. Thorne

Hydrogeologic framework and considerations for drilling and grouting of closed-loop geothermal bores in the Erie-Ontario Lowlands and Allegheny Plateau of New York State Hydrogeologic framework and considerations for drilling and grouting of closed-loop geothermal bores in the Erie-Ontario Lowlands and Allegheny Plateau of New York State

The hydrogeologic framework at closed-loop geothermal sites in the Erie-Ontario Lowlands and Allegheny Plateau of central and western New York is the result of the complex interaction of bedrock geology, glacial geology, and groundwater hydrology, and the occurrence of petroleum and gas. Considerations for closed-loop geothermal bore installation include the thickness and character of...
Authors
John H. Williams, William M. Kappel, Joshua C. Woda

Groundwater budget for the surficial aquifer surrounding Lake Nokomis, Minneapolis, Minnesota Groundwater budget for the surficial aquifer surrounding Lake Nokomis, Minneapolis, Minnesota

During prolonged periods of above-average precipitation, rising groundwater levels have the potential to cause damage to and interfere with underground infrastructure and building foundations. To understand the relations between precipitation and groundwater in the vicinity of Lake Nokomis, the U.S. Geological Survey, in collaboration with the University of Minnesota, quantified five...
Authors
Colin T. Livdahl

USGS Environmental Health Program—Per- and polyfluoroalkyl substances (PFAS) science activities [postcard] USGS Environmental Health Program—Per- and polyfluoroalkyl substances (PFAS) science activities [postcard]

Introduction The U.S. Geological Survey (USGS) Environmental Health Program conducts various activities related to PFAS (per- and polyfluoroalkyl substances) to understand their impacts on human health and the environment. Through these activities, the program aims to provide critical information and resources to address the challenges posed by PFAS contamination.
Authors
Deborah D. Iwanowicz

Simulated effects of future water availability and protected species habitat in a perennial wetland, Santa Barbara County, California Simulated effects of future water availability and protected species habitat in a perennial wetland, Santa Barbara County, California

This study evaluates the potential water availability in Barka Slough and the effects of changing hydrological conditions on the aquatic habitat of five protected species. Barka Slough is a historically perennial wetland at the downstream western end of the San Antonio Creek Valley watershed (SACVW). A previously published hydrologic model of the SACVW for 1948–2018 was extended to...
Authors
Geoffrey Cromwell, Daniel Philip Culling, Matthew J. Young, Joshua Larsen
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