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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

We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Filter Total Items: 175505

Simulated mean monthly groundwater-transported nitrogen loads in watersheds on the north shore of Long Island Sound, 1993–2022 Simulated mean monthly groundwater-transported nitrogen loads in watersheds on the north shore of Long Island Sound, 1993–2022

Elevated nitrogen loads are pervasive in the Long Island Sound, an estuary that receives freshwater and nutrients from both surface-water and groundwater discharge. Surface-water nitrogen loads to the Long Island Sound are relatively well characterized, but less is known about groundwater-transported nitrogen loads. Prior work on the northern shore of Long Island Sound (Connecticut and...
Authors
Janet R. Barclay, Madeleine J. Holland, John R. Mullaney
By
Water Resources Mission Area, New England Water Science Center, USGS Science in Long Island Sound and its Watershed

The value of hyperparameter optimization in phase-picking neural networks The value of hyperparameter optimization in phase-picking neural networks

The effectiveness of using neural networks for picking seismic phase arrival times has been demonstrated through several case studies, and seismic monitoring programs are starting to adopt the technology into their workflows. However, published models were designed and trained using rather arbitrary choices of hyperparameters, limiting their performance. In this study, we use phase picks...
Authors
Yongsoo Park, David R. Shelly
By
Geologic Hazards Science Center

Stream nitrate dynamics driven primarily by discharge and watershed physical and soil characteristics at intensively monitored sites: Insights from deep learning Stream nitrate dynamics driven primarily by discharge and watershed physical and soil characteristics at intensively monitored sites: Insights from deep learning

We developed a suite of models using deep learning to make hindcast predictions of the 7‐day average backward‐looking nitrate concentration at 46 predominantly agricultural sites across the midwestern and eastern United States. The models used daily observations of discharge and meteorological variables and watershed attributes describing anthropogenic modification to hydrology, nitrogen
Authors
Galen Gorski, Laurel Larsen, Jordan Wingenroth, Liang Zhang, Dino Bellugi, Alison P. Appling
By
Water Resources Mission Area

Groundwater quality near the Placerita Oil Field, California, 2018 Groundwater quality near the Placerita Oil Field, California, 2018

Groundwater-quality data and potential fluid-migration pathways near the Placerita Oil Field in Los Angeles County, California, were examined by the U.S. Geological Survey to determine if oil-field fluids (water and gas from oil-producing and non-producing zones) have mixed with groundwater resources. Six of the 13 new groundwater samples collected for this study contained petroleum...
Authors
Jennifer S. Stanton, Matthew K. Landon, David H. Shimabukuro, Justin T. Kulongoski, Andrew G. Hunt, Peter B. McMahon, Isabelle M. Cozzarelli, Robert Anders, Theron A. Sowers
By
Water Resources Mission Area, California Water Science Center, New England Water Science Center

A framework for estimating economic impacts of ecological restoration A framework for estimating economic impacts of ecological restoration

Ecological restoration projects are designed to improve natural and cultural resources. Spending on restoration also stimulates economic impacts to the restoration economy through the creation or support of jobs and business activity. This paper presents accessible methods for quantifying the economic impacts supported by restoration spending and is written to be a guide and toolbox for...
Authors
Catherine Cullinane Thomas, Christopher Huber, Kristin E. Skrabis, Timothy B. Hoelzle
By
Science and Decisions Center

Factors contributing to pesticide contamination in riverine systems: The role of wastewater and landscape sources Factors contributing to pesticide contamination in riverine systems: The role of wastewater and landscape sources

Wastewater treatment plant (WWTP) discharges can be a source of organic contaminants, including pesticides, to rivers. An integrated model was developed for the Potomac River watershed (PRW) to determine the amount of accumulated wastewater percentage of streamflow (ACCWW) and calculate predicted environmental concentrations (PECs) for 14 pesticides in non-tidal National Hydrography...
Authors
Samuel Adam Miller, Kaycee E. Faunce, Larry B. Barber, Jacob Fleck, Daniel Walter Burns, Jeramy Roland Jasmann, Michelle L. Hladik
By
Water Resources Mission Area, California Water Science Center, Chesapeake Bay Activities, Virginia and West Virginia Water Science Center
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