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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Morphometric parameters, median and maximum concentrations, and percentages of stream lengths through geologic units for 33 tributary drainage basins of the San Juan River watershed in the Four Corners region, United States Morphometric parameters, median and maximum concentrations, and percentages of stream lengths through geologic units for 33 tributary drainage basins of the San Juan River watershed in the Four Corners region, United States
This data release presents data and calculations for morphometric parameters, median and maximum unfiltered concentrations used in statistical analyses, and stream lengths through geologic units that contain elevated concentrations of constituents of concern used for the publication, "Morphometric and geologic characterization with statistical correlations for 33 tributary drainage...
Nearshore bathymetry at Point Barrow, Alaska, 2022 Nearshore bathymetry at Point Barrow, Alaska, 2022
This data release contains nearshore bathymetry measurements collected at Point Barrow, Alaska in July 2022. These data were collected as part of an effort to monitor and forecast coastal flooding and erosion. They are also intended for reuse by scientists, managers, and the general public.
Geochemical and mineralogical data for core and cuttings samples from wells in the Eocene Green River Formation, Uinta Basin, Utah Geochemical and mineralogical data for core and cuttings samples from wells in the Eocene Green River Formation, Uinta Basin, Utah
Bulk organic geochemical, major and trace element, and mineralogical data have been collected for core and cuttings samples of the Eocene Green River Formation from thirty-four wells in the Uinta Basin of Utah. The samples were collected from the U.S. Geological Survey Core Research Center in Denver, CO and the Utah Core Research Center in Salt Lake City, UT and represent multiple...
Data release for integrating remotely sensed surface water dynamics in hydrologic signature modeling Data release for integrating remotely sensed surface water dynamics in hydrologic signature modeling
Variability in river discharge, particularly very high flow and low flow conditions, has far-reaching environmental and economic consequences. The retention of water in surface storage, concentrated in lakes, ponds, wetlands, floodplains, and temporary water in flood prone areas, can potentially contribute to flow generation and flood regulation. However, the impact of surface water...
Determination of the concentration and activity of microcystin-LR and degradants after irradiation with 254 nm and 222 nm UV light with Protein phosphatase 2a inhibition assays and high-resolution mass spectrometry using isotope dilution Determination of the concentration and activity of microcystin-LR and degradants after irradiation with 254 nm and 222 nm UV light with Protein phosphatase 2a inhibition assays and high-resolution mass spectrometry using isotope dilution
Microcystin-LR (MC-LR), a cyanotoxin produced during some harmful algal blooms (HABs), can have negative impacts on water ecosystems. Current treatment methods have potential drawbacks: physical removal can cause cell lysis and toxin release, and chemical treatment can cause disinfection byproducts (DBPs). Ultraviolet C (UV-C) treatment can degrade cyanotoxins without producing...
Topobathymetric digital elevation models - coastal Alaska (ver. 2.0, March 2026) Topobathymetric digital elevation models - coastal Alaska (ver. 2.0, March 2026)
This data release consists of a series of seamless topobathymetric digital elevation models (TBDEMs) for coastal Alaskan communities. Each TBDEM was assembled from best available, multi-source topographic and bathymetric elevation data collected at the time of processing. These products were created to support the development of dynamic flood models, but are also intended for reuse by...