Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Effects of hypoxic exposure on survival of larval grass carp (Ctenopharyngodon idella) Effects of hypoxic exposure on survival of larval grass carp (Ctenopharyngodon idella)
We determined the effects of hypoxia exposure on grass carp larvae survival within certain developmental periods. Our goal was to establish a baseline lethal DO concentration based on both time of exposure and water temperature. In 2023 we used 6 different low dissolved oxygen concentrations (0.2, 0.4, 0.6, 0.8, 1.0 and 1.2 mg/L plus a control of 7.0 mg/L) to test survival during short...
Digital data for a 3D geologic model of the Michigan Basin region, Illinois, Indiana, Michigan, Ohio, and Wisconsin, USA (ver. 2.0, February 2026) Digital data for a 3D geologic model of the Michigan Basin region, Illinois, Indiana, Michigan, Ohio, and Wisconsin, USA (ver. 2.0, February 2026)
This digital GIS dataset and accompanying nonspatial files synthesize model outputs from a regional-scale volumetric 3D geologic model that portrays the generalized subsurface geology of the Michigan Basin region of Michigan, Wisconsin, Illinois, Indiana, and Ohio. The intent of this product is to rapidly and efficiently synthesize large quantities of geologic data from a wide variety of...
Atmospheric fallout radionuclide data and geochemical data for soil cores from four uranium mine sites, Mohave County, Arizona, April 2022 Atmospheric fallout radionuclide data and geochemical data for soil cores from four uranium mine sites, Mohave County, Arizona, April 2022
The data represent sediment depth profiles of gamma-emitting radionuclides and major, minor, and trace elements in native soil locations around four mineralized sites in Mohave County, Arizona. The four sites represent breccia pipe uranium deposits in the Grand Canyon Region in various lifecycle stages of mining: EZ2 complex (exploration), Arizona 1 mine (standby), Pinenut mine (closed...
Chesapeake Bay Land Use/Land Cover (LULC) Database 2024 Edition Chesapeake Bay Land Use/Land Cover (LULC) Database 2024 Edition
The Chesapeake Bay Land Use/Land Cover (LULC) Database facilitates the characterization of the landscape over time for three discrete time periods at 1-meter spatial resolution. The database was developed by Chesapeake Conservancy (CC) in cooperation with the University of Vermont’s Spatial Analysis Laboratory and U.S. Geological Survey (USGS) as part of a 6-year Cooperative Agreement...
Uncrewed Aircraft System (UAS) imagery and data products from a multiscale remote sensing field campaign at a biocrust monitoring site located near Castle Valley, Utah in February 2022 Uncrewed Aircraft System (UAS) imagery and data products from a multiscale remote sensing field campaign at a biocrust monitoring site located near Castle Valley, Utah in February 2022
In February 2022, the U.S. Geological Survey (USGS) National Uncrewed Systems Office (NUSO) conducted uncrewed aircraft systems (UAS) remote sensing flights to support biological soil crust (biocrust) research at an experiment site located near Castle Valley, Utah. Researchers at the USGS Southwest Biological Science Center have managed this site for over 50 years to study the effects of
Per- and polyfluoroalkyl substances (PFAS) measured in the coastal waters around Oahu, Hawai'i in 2019 and 2020 using passive samplers Per- and polyfluoroalkyl substances (PFAS) measured in the coastal waters around Oahu, Hawai'i in 2019 and 2020 using passive samplers
Concentrations of a group of per- and polyfluoroalkyl substances (PFAS) were measured in coastal waters around the island of Oahu, Hawai'i in 2019 and 2020 to provide a measure of exposure to resident fish species commonly harvested for human consumption. These contaminants were sampled using the polar organic chemical integrative sampler (POCIS) which allows for the determination of the...