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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Understanding mechanisms for Brook Trout persistence in warming streams: what stream temperatures do fish actually experience? Understanding mechanisms for Brook Trout persistence in warming streams: what stream temperatures do fish actually experience?
As stream temperatures increase, cold water adapted brook trout populations are projected to decline. However, there are mechanisms brook trout can use to persist in warming streams. Those mechanisms include acclimation, adaptation, and utilizing cold water refugia in streams where thermal heterogeneity is high. Using implanted temperature recording tags, this study examines individual...
Groundwater-quality data in the Western Slope of the Sierra Nevada Domestic-Supply Aquifer Study Unit, 2024: Results from the California GAMA Priority Basin Project (ver. 1.2, March 2026) Groundwater-quality data in the Western Slope of the Sierra Nevada Domestic-Supply Aquifer Study Unit, 2024: Results from the California GAMA Priority Basin Project (ver. 1.2, March 2026)
The U.S. Geological Survey collected groundwater samples from 38 wells used for domestic and small system drinking water supplies in the south-central Sierra Nevada region, California in 2023 and 2024. The wells were sampled for the Western Slope of the Sierra Nevada domestic-supply aquifer study unit of the California Groundwater Ambient Monitoring and Assessment Program Priority Basin...
Global gray-sky dT (Version 2): inverse of the surface psychrometric constant parameter in the SSEBop evapotranspiration model Global gray-sky dT (Version 2): inverse of the surface psychrometric constant parameter in the SSEBop evapotranspiration model
The surface psychrometric constant (spc) is a key model parameter in actual evapotranspiration (ET) modeling using the Operational Simplified Surface Energy Balance (SSEBop) model for establishing model boundary limits for the dry/bare and wet/vegetated surface conditions. The inverse of the constant (1/spc) represents the temperature difference (dT) between the bare/dry surface and the...
Coastal Multibeam Bathymetry and Backscatter Data Collected in June 2024 From Wallops and Assawoman Islands, Virginia Coastal Multibeam Bathymetry and Backscatter Data Collected in June 2024 From Wallops and Assawoman Islands, Virginia
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS–SPCSMC), conducted a bathymetric survey near Wallops and Assawoman Islands, Virginia (VA). During this study, multibeam bathymetry data were collected aboard the Research Vessel (R/V) Sallenger from June 1-13, 2024, as a part of field activity number (FAN) 2024-310...
Tailwater time series and telemetry receiver range testing data for Kentucky Dam between 2021 and 2022 Tailwater time series and telemetry receiver range testing data for Kentucky Dam between 2021 and 2022
Invasive carp residency patterns in dam tailwaters are poorly understood. To better inform removal efforts in dam tailwaters, we examined multiple predictors of invasive carp residency in the Kentucky Dam tailwater between 2021 and 2022. This data release contains a time series dataset with daily counts and daily mean residence times of Silver Carp (Hypophthalmichthys molitrix) recorded...
Amphibian nighttime call data from Midwest ARMI surveys 2003-2008 (ver. 1.1, April 2026) Amphibian nighttime call data from Midwest ARMI surveys 2003-2008 (ver. 1.1, April 2026)
This dataset consists of raw survey data from nighttime call surveys for anurans collected as part of several separate projects from 2003 to 2008. Anuran communities were surveyed during the night using parabolic microphones or naked ear with multiple observers conducting surveys. Data are presented from each survey. First release: 2025 Revised: April 2026 (ver. 1.1)