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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Geochemical and isotopic data for soils and sediments from the Clear Lake drainage basin, Lake County, California (ver. 2.0, August 2025) Geochemical and isotopic data for soils and sediments from the Clear Lake drainage basin, Lake County, California (ver. 2.0, August 2025)
This dataset includes geochemical, isotopic, and particle-size data for soil and sediment samples collected at approximately 500 sites in the Clear Lake drainage basin, Lake County, California, between November 2021 and December 2023. Data are also reported for ten soil samples collected during October 2018 soon after the Ranch Fire in the upper Scotts Creek watershed. Samples of lakebed...
Digitized and Derivative Potentiometric Surface Datasets for the Mississippi River Valley Alluvial Aquifer Extent of Eastern Arkansas, Predevelopment to 2008 Digitized and Derivative Potentiometric Surface Datasets for the Mississippi River Valley Alluvial Aquifer Extent of Eastern Arkansas, Predevelopment to 2008
The Mississippi River Valley alluvial aquifer (MRVA) in eastern Arkansas is a major source of groundwater for public, industrial, agricultural, and aquaculture uses. Estimated withdrawals from the MRVA increased from 1,063 million gallons per day in 1965 (Halberg and Stephens, 1966) to 7,252 million gallons per day in 2005 (Holland, 2007). Potentiometric-surface maps, which represent the...
National-scale dataset of strontium isotope compositions in environmental materials for the United States National-scale dataset of strontium isotope compositions in environmental materials for the United States
This database contains published strontium isotopic ratios (87Sr/86Sr) and associated sample collection data for strontium dissolved in environmental waters for the United States (conterminous, Hawaii, Alaska, and coastal seawater). Samples included in this version were collected and analyzed between 1963 to 2022.
Chirp Sub-Bottom Profile Geophysical Data Collected in 2024 Offshore of Breton Island, Louisiana Chirp Sub-Bottom Profile Geophysical Data Collected in 2024 Offshore of Breton Island, Louisiana
As part of the Breton Island Post Construction Monitoring project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore geophysical survey in August 2024 to map the borrow site created during the Breton Island, Louisiana (LA) restoration effort that began in December 2020. The restoration effort was part of the Deepwater...
Salinity and Temperature Data for South Florida Estuarine Mollusks (1994-present) Salinity and Temperature Data for South Florida Estuarine Mollusks (1994-present)
The Salinity and Temperature Data for South Florida Estuarine Mollusks (1994-present) database contains salinity and temperature readings from modern monitoring sites where live mollusks were observed during fieldwork performed from 1994 to present, salinity and temperature summary statistical data for each species, and location information about the sites where the monitoring data were...
Gage Height, Turbidity, and Acoustic Backscatter Data Collected During Experimental Sediment Release from Willwood Dam on the Shoshone River in Park County, Wyoming, April 11-13, 2023 Gage Height, Turbidity, and Acoustic Backscatter Data Collected During Experimental Sediment Release from Willwood Dam on the Shoshone River in Park County, Wyoming, April 11-13, 2023
The Willwood Working Group Two of Wyoming conducted an experimental sediment release from Willwood Dam from April 11-13, 2023. The experiment involved opening sluice gates at the base of Willwood Dam to draw down the dam pool which created energy to mobilize sediment deposits behind the dam. The U.S. Bureau of Reclamation released up to 4,000 cubic feet per second from Buffalo Bill Dam...