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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

Localization of spatiotemporally heterogeneous subsurface flows using autoencoder-based deep learning framework for time-lapse self-potential tomography Localization of spatiotemporally heterogeneous subsurface flows using autoencoder-based deep learning framework for time-lapse self-potential tomography

Self-potential (SP) monitoring has emerged as a valuable method for characterizing subsurface hydrogeological features and processes due to its sensitivity to fluid-induced electrokinetic effects. Despite advancements in SP inversion, challenges remain in imaging groundwater dynamics from SP activities due to complex hydrological settings and transient noise. In this study, a deep...
Authors
Huichao Yin, Scott Ikard, Dale F. Rucker, Scott C. Brooks, Zhenxue Dai, Mohamad Reza Soltanian, Kenneth C. Carroll

Neutron scattering reveals fractionation of natural gas mixtures in unconventional petroleum reservoir pores: Perspectives on energy resource recovery and storage Neutron scattering reveals fractionation of natural gas mixtures in unconventional petroleum reservoir pores: Perspectives on energy resource recovery and storage

In unconventional petroleum reservoirs hydrocarbon fluids are hosted by both mineral and organic matter pores. These pores can have diameters that range from microns to less than a single nanometer and, for unconventional reservoirs, there is evidence that small pores (
Authors
Aaron M. Jubb, Justin E. Birdwell, Leslie F. Ruppert, Martha Stokes, Ashton M. Wiens, Thomas Headen, Tristan G. A. Youngs

Improving offshore 3D splay fault geometries and slip histories using seismic data reprocessing and structural modeling Improving offshore 3D splay fault geometries and slip histories using seismic data reprocessing and structural modeling

The goal of this project as written in the CRESCENT seed grant proposal was as follows: 1) reprocess selected profiles along strike from 45° to 48°N from the CASIE21 crustal-scale seismic data to obtain higher-resolution and higher-quality imaging of the uppermost 1-2 km of the accretionary wedge; 2) convert high-resolution USGS sparker seismic data from the time to depth domain to...
Authors
Anna M. Ledeczi, Nathaniel C. Miller, Harold J. Tobin, Cailey B. Condit

Co-occurrence of pesticides and pharmaceuticals and personal care products (PPCPs) across Zostera marina (common eelgrass) communities Co-occurrence of pesticides and pharmaceuticals and personal care products (PPCPs) across Zostera marina (common eelgrass) communities

Anthropogenic pressures are driving changes in eelgrass communities, which are altering baseline conditions in estuarine environments. Field detections have validated the transport of land-sourced pollutants to aquatic systems; however, studies rarely sample concurrently for pesticides, and pharmaceuticals and personal care products (PPCPs) across environmental compartments. Moreover...
Authors
Alexandra G. Tissot, Janet C. Niessner, Elise F. Granek, Kimberly Brown, Michelle L. Hladik

Range-wide relative abundance of the Appalachian grizzled skipper (Pyrgus centaureae wyandot) in the Eastern United States Range-wide relative abundance of the Appalachian grizzled skipper (Pyrgus centaureae wyandot) in the Eastern United States

The U.S. Fish and Wildlife Service has designated the Pyrgus centaureae wyandot (Appalachian Grizzled Skipper [AGS]) to be at-risk, based on its declining populations and the lack of information on its status. The objective of this study was to complete range-wide surveys to locate extant AGS colonies and to quantify the number of AGS observed at each location. From 2021–24, 284 surveys...
Authors
Nimish B. Vyas, Jennifer Selfridge, David Cuthrell, Robert Somes, Erin White, Judith Ratcliffe, J. Merrill Lynch, Laurie Hamon, Eileen Wyza, Betsy Leppo, Pete Woods, Anthony Tur, Donovan Drummey, Kathryn Nolan, Ellison Orcutt, Andrew Rapp, Leah Card, Jakob Goldner, Susan Olcott

Effects of repeat prescribed burning in dry coniferous forests in national parks of California Effects of repeat prescribed burning in dry coniferous forests in national parks of California

Background Prescribed fire is a common approach to reduce fuels and mitigate fire hazards. The accumulation of live and dead fuels following initial treatment means that repeated application of prescribed fire could be used to maintain this benefit. However, the effect of repeated prescribed fires is not well documented in many dry coniferous forests in the western United States. Here...
Authors
Phillip J. van Mantgem, Micah C. Wright, Calvin A. Farris, Eamon Engber, Emma J. McClure, Anthony C. Caprio, MaryBeth Keifer
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