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Science Quality and Integrity

The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.

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Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 84733

The U.S. Geological Survey National Atmospheric Deposition Program, National Trends Network, 2023 The U.S. Geological Survey National Atmospheric Deposition Program, National Trends Network, 2023

The U.S. Geological Survey (USGS) has been a National Atmospheric Deposition Program (NADP) partner agency since 1981. NADP is composed of five atmospheric monitoring networks that verify Clean Air Act effectiveness and provide essential data to protect human health and preserve ecosystems for current and future generations. Stakeholders include land management agencies overseeing...
Authors
Ryan C. McCammon, Noel A. Deyette
By
Water Resources Mission Area

The U.S. Geological Survey National Water Quality Network—Groundwater, 2024 The U.S. Geological Survey National Water Quality Network—Groundwater, 2024

The U.S. Geological Survey (USGS) operates a National Water Quality Network (NWQN) to monitor trends in groundwater quality and assess emerging contaminants of concern. It is a “network of networks” with 81 subnetworks being sampled on a decadal time scale. Each year, 8 of the subnetworks are sampled. Subnetworks have 20–30 wells each and include studies of domestic supply wells or...
Authors
Bruce D. Lindsey, James A. Kingsbury, Leah Marissa Santangelo
By
Water Resources Mission Area

Analysis of summer water temperatures of the lower Virgin River near Mesquite, Nevada, 2019–21 Analysis of summer water temperatures of the lower Virgin River near Mesquite, Nevada, 2019–21

The lower Virgin River is a sandy, shallow reach of the Virgin River that flows from northern Arizona to Lake Mead in Nevada. The Virgin River hosts several native fish species, including two endangered fish, woundfin (Plagopterus argentissimu) and Virgin River chub (Gila seminuda). All native fish species in the lower Virgin River have experienced reductions in population sizes in the...
Authors
Katherine J. Earp
By
Nevada Water Science Center

Random forest regression models for estimating low-streamflow statistics at ungaged locations in New York, excluding Long Island Random forest regression models for estimating low-streamflow statistics at ungaged locations in New York, excluding Long Island

This report is currently being updated with re‑calibrated random‑forest models for StreamStats implementation. The basin‑characteristic inputs were modified to align with StreamStats requirements.Abstract Models to estimate low-streamflow statistics at ungaged locations in New York, excluding Long Island and including hydrologically connected basins from bordering States, were developed...
Authors
Timothy J. Stagnitta, Joshua Woda, Alexander P. Graziano
By
New York Water Science Center

Astronomical optical interferometry from the lunar surface: High sensitivity at sub-miliarcsecond scales Astronomical optical interferometry from the lunar surface: High sensitivity at sub-miliarcsecond scales

The lunar surface is a compelling opportunity for large, distributed optical facilities, with significant advantages over orbital facilities for high spatial resolution astrophysics. Serious development of mission concepts is timely because of the confluence of multiple compelling factors. First, lunar access technology is maturing rapidly, in the form of both US uncrewed and crewed...
Authors
G. T. van Belle, T. Boyajian, M. Creech-Eakman, J. Elliott, K. Ennico-Smith, D. Hillsberry, K. Hubbard, T. Ito, S. R. Kulkarni, C. Langford, L. Lee, D. Leisawitz, E. Mamajek, May Martin, T. Matsuo, D. Mawet, J. Monnier, J. Morse, D. Mozurkewich, P. Niles, M. Panning, Lori M. Pigue, A. Sanghi, G. Schaefer, J. Scott, S. B. Shaklan, L. Spencer, A. Tohuvavohu, P. Tuthill, K. Valenta, J. Wachs
By
Natural Hazards Mission Area, Astrogeology Science Center

White-nose syndrome surveillance and bat monitoring activities in North Coast and Cascades Network parks 2016–2024 White-nose syndrome surveillance and bat monitoring activities in North Coast and Cascades Network parks 2016–2024

Pseudogymnoascus destructans (Pd), the causative agent of white-nose syndrome (WNS) in bats, has caused serious declines in bat populations across North America. We conducted WNS surveillance in five different park units in the North Coast and Cascades Network (NCCN) from 2016 to 2024, following the initial detection of Pd and WNS in Washington State in 2016. We captured and swabbed bats...
Authors
Tara Chestnut, Jenny Urbina, Michael Elizabeth Hansen, Rebecca M. McCaffery, Dylan J. Rhea-Fournier, Jennifer Allen, Taal Levi
By
Ecosystems Mission Area, Forest and Rangeland Ecosystem Science Center
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