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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Quaternary ammonium compounds in wastewater treatment effluents from 2020 to 2021 Quaternary ammonium compounds in wastewater treatment effluents from 2020 to 2021
Quaternary ammonium compounds (QAC) are used in many commercial and household disinfection products. A method was developed to measure QAC occurrence in water discharged from three wastewater treatment plants during 2020 and 2021. Water samples (20 mL) were processed via solid phase extraction using weak cation exchange (WCX) cartridges (3 cc, 60 mg) and analyzed via liquid...
Multilevel Monitoring System (MLMS) datasets for wells in the U.S. Geological Survey - Idaho National Laboratory groundwater monitoring network Multilevel Monitoring System (MLMS) datasets for wells in the U.S. Geological Survey - Idaho National Laboratory groundwater monitoring network
A collection of analysis-ready Multilevel Monitoring System (MLMS) datasets for wells in the U.S. Geological Survey (USGS) aquifer-monitoring network, Idaho National Laboratory (INL), Idaho. Administered by the USGS INL Project Office in cooperation with the U.S. Department of Energy.
Weekly Changes of Exotic Annual Grasses (EAG) abundance in the Sagebrush Biome, USA, 2024 Weekly Changes of Exotic Annual Grasses (EAG) abundance in the Sagebrush Biome, USA, 2024
These datasets provide weekly differences of early estimates of 2024 fractional cover for exotic annual grass (EAG) that were released from April to late June. The EAG estimates were publicly released within 7-13 days of the latest satellite observation used for that version. Each weekly release contained five fractional cover maps along with their corresponding confidence maps for: 1) a...
Hydrogeologic framework top-surface altitude rasters for the Virginia Eastern Shore Hydrogeologic framework top-surface altitude rasters for the Virginia Eastern Shore
In support of a groundwater-flow model of the Virginia Eastern Shore, altitudes were determined for the tops of hydrogeologic surfaces, including incised paleochannel surfaces, that compose the framework within the model area. Rasters were generated from the altitude data for the tops of the surficial aquifer, upper confining unit, upper aquifer, middle confining unit, middle aquifer...
Estuarine Shoreline, Upland Boundary, and Marsh Habitat Change Analyses for the Point Aux Chenes and Grand Bay Estuary Systems, Mississippi and Alabama Estuarine Shoreline, Upland Boundary, and Marsh Habitat Change Analyses for the Point Aux Chenes and Grand Bay Estuary Systems, Mississippi and Alabama
Coastal marshes across the Northern Gulf of Mexico are critical ecosystems, providing wildlife habitat, nursery for many species of fish, a carbon sink, and protection of communities from storm surge, but are vulnerable to coastal hazards, such as wave attack, sea level rise, and subsidence. While many marshes accrete vertically to compensate for rising sea level, marsh loss can occur...
Data on the behavior of grass carp, silver carp, and bighead carp during laboratory exposures to the amino acids L-alanine, L-arginine, L-aspartic acid, and L-glutamic acid Data on the behavior of grass carp, silver carp, and bighead carp during laboratory exposures to the amino acids L-alanine, L-arginine, L-aspartic acid, and L-glutamic acid
These data pertain to behavior trials conducted on three different species of invasive carp in a laboratory setting between the dates of 29 April 2021 to 14 December 2021. The three species tested were grass carp (Ctenopharyngodon Idella), bighead carp (Hypophthalmichthys nobilis) and silver carp (H. molitrix). The amino acids L-alanine, L-arginine, L-aspartic acid, and L‑glutamic acid...