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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Data to Support the Evaluation of Alternative Coatings for USGS Water-Quality Samplers Data to Support the Evaluation of Alternative Coatings for USGS Water-Quality Samplers
A series of blank samples were analyzed as part of a study to evaluate alternative coatings for USGS water-quality samplers. The open-file report to be published in association with this data is titled "Evaluation of Alternative Coatings for U.S. Geological Survey Water-Quality Samplers" (Thornton, 2025) and includes further details of the study. The five coating options evaluated were...
Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2023 Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2023
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed were calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2023. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted...
Juvenile carp survival rates relative to season, habitat and predator species combinations in experimental pond exposures Juvenile carp survival rates relative to season, habitat and predator species combinations in experimental pond exposures
Prey survival rates relative to season, habitat and species of predator from eighteen two-week experiments, from April-October in 2015 and 2016, that were conducted in experimental ponds with differing habitats of artificial structure, vegetation, or no habitat combinations.
Paired Watershed and Characteristic Trait Data for the Los Planes Basin Research Ranch Watersheds: U.S. Geological Survey Data Release Paired Watershed and Characteristic Trait Data for the Los Planes Basin Research Ranch Watersheds: U.S. Geological Survey Data Release
Watershed pairing is an approach used to assess effects of restoration on a landscape by comparing conditions across a treatment watershed and a control watershed, and then quantifying the differences. When the watersheds are statistically paired, the control watershed can serve as a baseline of conditions compared to the treatment watershed. We apply a watershed pairing analysis across...
High-resolution orthoimagery and digital surface models of Fern Ridge Lake, Oregon, during annual low pool, January and February, 2023 High-resolution orthoimagery and digital surface models of Fern Ridge Lake, Oregon, during annual low pool, January and February, 2023
In cooperation with the U.S. Army Corps of Engineers (USACE), the U.S. Geological Survey (USGS) deployed ground control points and coordinated aerial photograph acquisition of Fern Ridge Lake, a multi-purpose reservoir in western Oregon impounded by the 13-m tall Fern Ridge Dam. Aerial photographs were acquired by the Civil Air Patrol (CAP) during winter 2023 when water levels were at or...
Data release for New evidence for eolian activity and mammoths on Santa Rosa Island prior to the Last Glacial Maximum Data release for New evidence for eolian activity and mammoths on Santa Rosa Island prior to the Last Glacial Maximum
Sea-level fluctuations due to the growth and decay of continental ice sheets of the Quaternary exert a strong influence on geologic processes along coastlines. The California Channel Islands are no exception to this, and many studies have been conducted that focus on the extremes of these glacial-interglacial cycles, such as the last glacial period (marine isotope stage [MIS] 2) and the...