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Reports

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.

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Determination of antimycin–a in a liquid formulation by high performance liquid chromatography–mass spectrometry Determination of antimycin–a in a liquid formulation by high performance liquid chromatography–mass spectrometry

Pesticide formulations containing the active ingredient antimycin–a (ANT–A) have been used by fisheries and aquaculture managers for several decades to remove nuisance fish species. Analytical methods for measuring ANT–A during pesticide treatments have been done using high performance liquid chromatography (HPLC) paired with multiple detection methods (for example, electrochemical...
Authors
Gavin N. Saari, J. Nolan Steiner, Bryan Lada, Nadia Carmosini
By
Ecosystems Mission Area, Upper Midwest Environmental Sciences Center

High-Flow Experimental Outcomes to Inform Everglades Restoration, 2010–22 High-Flow Experimental Outcomes to Inform Everglades Restoration, 2010–22

The Decompartmentalization Physical Model (DPM) was an experimental facility in the central Everglades operated between 2010 and 2022 to release high flows through a levee-enclosed area of degraded ridge and slough wetland that had been isolated from flow for sixty years. The purpose of DPM experimental program was to make measurements before, during, and after seasonal high-flow...
Authors
Judson W. Harvey, Jay Choi, Laurel Larsen, Katherine Skalak, Morgan Maglio, Katherine Quion, Tzu-Yao Lin, Allison Swartz, Jesus Gomez-Velez, Noah Schmadel
By
Water Resources Mission Area

The U.S. Geological Survey National Water Quality Network—Surface Water—2023 The U.S. Geological Survey National Water Quality Network—Surface Water—2023

The U.S. Geological Survey (USGS) National Water Quality Network for surface water (NWQN-SW) was established in 2013 to develop long-term, comparable assessments of surface-water quality in support of national, regional, state, and local needs related to water-quality management and policy. Waterquality samples are collected at each site and measured for a variety of parameters. In 2023...
Authors
Melissa L. Riskin
By
Water Resources Mission Area

U.S. Geological Survey Groundwater Climate Response Network—2023 U.S. Geological Survey Groundwater Climate Response Network—2023

As of October 2023, the U.S. Geological Survey (USGS) operated more than 660 sites across the United States and its territories as part of the Groundwater Climate Response Network (CRN). The CRN is comprised of wells and springs selected to monitor the effects of climate variability, such as droughts, on groundwater levels and spring discharge nationwide. The CRN includes more than 550...
Authors
Jason Fine, Rodney R. Caldwell
By
Water Resources Mission Area

Federal lands greenhouse gas emissions and sequestration in the United States: Estimates for 2005–22 Federal lands greenhouse gas emissions and sequestration in the United States: Estimates for 2005–22

In 2016, the Secretary of the U.S. Department of the Interior requested that the U.S. Geological Survey (USGS) produce a publicly available and annually updated database of estimated greenhouse gas emissions associated with the extraction and use of fossil fuels from Federal lands. The first report in this series included emissions estimates from 2005 to 2014 and were reported for 29...
Authors
Matthew D. Merrill, Benjamin M. Sleeter, Philip A. Freeman
By
Energy Resources Program, Geology, Energy & Minerals Science Center, Western Geographic Science Center

Water-quality comparisons in the Greater Mooses Tooth unit of the National Petroleum Reserve in Alaska, 2010 and 2023 Water-quality comparisons in the Greater Mooses Tooth unit of the National Petroleum Reserve in Alaska, 2010 and 2023

The United States has long held oil reserves in the National Petroleum Reserve in Alaska (NPR–A), but oil production did not begin until 2015. The waters of the NPR–A are generally considered “pristine,” but water quality has not been characterized temporally or spatially in a rigorous manner. In 2010 and 2023, the U.S. Geological Survey, in cooperation with the Bureau of Land Management
Authors
Brent M. Hall
By
Water Resources Mission Area, Central Plains Water Science Center
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