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Polyaromatic Hydrocarbon Data for Oil Samples from the Bemidji Oil Spill Research Site, 1987-2020 Polyaromatic Hydrocarbon Data for Oil Samples from the Bemidji Oil Spill Research Site, 1987-2020
The USGS is conducting a long-term study of a terrestrial crude oil spill that resulted from a ruptured pipeline in 1979. Samples of oil bailed from wells were analyzed for polyaromatic hydrocarbons by a commercial lab. A total of 32 samples were analyzed in three batches. A sample that serves as a surrogate for the original spilled oil was submitted with each batch. For each oil sample
High-resolution land cover mapping along the Atlantic and Gulf coasts to enhance hurricane coastal impact models High-resolution land cover mapping along the Atlantic and Gulf coasts to enhance hurricane coastal impact models
To enhance hurricane coastal impact models, we developed 1-m land cover maps for the coastal portions of states along the Gulf of America and Atlantic coasts using recent (2018–2020) high-resolution orthoimagery and moderate-resolution land cover maps. Our first step was to develop land cover maps with three classes (vegetated, unvegetated, water) using recently acquired 1-m orthoimagery...
Geospatial Datasets of Factors Influencing Groundwater Emergence Flood Hazard in Long Island, New York and near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island Geospatial Datasets of Factors Influencing Groundwater Emergence Flood Hazard in Long Island, New York and near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island
This data release contains raster datasets representing depth to water table, calculated from steady-state groundwater models developed by the U.S. Geological Survey (Jahn and others, 2024; Barclay and others, 2024). The depth to water table rasters are available at an approximate resolution of 10 meters. In addition, depth to water table, hydrologic soil types, and landcover are...
Geochemical, environmental, and quality assurance data for springs in eastern Oregon and northern Nevada Geochemical, environmental, and quality assurance data for springs in eastern Oregon and northern Nevada
This data release contains field and geochemical data, discharge measurements, and descriptive observations for 261 springs in eastern Oregon and northern Nevada. Data were collected during water years 2016–2023. The data release also includes quality assurance analyses and the results of a logistic model documented in the accompanying study report (Johnson, in review).
Contour Dataset of the Potentiometric Surfaces of Shallow and Deep Groundwater-Level Altitudes in the Walla Walla River Basin, Oregon and Washington, January–April 2021 Contour Dataset of the Potentiometric Surfaces of Shallow and Deep Groundwater-Level Altitudes in the Walla Walla River Basin, Oregon and Washington, January–April 2021
This dataset contains manually developed 50-, 100-, and 500-ft contours depicting shallow and deep potentiometric-surface maps for the Walla Walla River Basin aquifer system, Oregon and Washington. The potentiometric surfaces show altitude at the water-table throughout the region (shallow) and at which the water level would have risen in tightly-cased wells beneath the basin-fill...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region (ver 2.0, March 2026) Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, East Chenier Region (ver 2.0, March 2026)
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Acadiana Bays Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Benthic macroinfaunal community abundance, richness, and biomass data taken at the Mississippi barrier islands, 2010-2023 Benthic macroinfaunal community abundance, richness, and biomass data taken at the Mississippi barrier islands, 2010-2023
This dataset contains metrics of benthic assemblages taken before (pre) and after (post) barrier island restoration of the Mississippi Barrier Islands, which included sand placement on Cat and Ship Islands. The U.S. Fish and Wildlife Service considers the barrier islands along the Mississippi-Alabama coast as critical habitats for certain threated and endangered shorebird species...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Early Lafourche Delta Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, Early Lafourche Delta Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, West Chenier Region Louisiana Barrier Island Comprehensive Monitoring Program – 2021 habitat map, West Chenier Region
The Barrier Island Comprehensive Monitoring (BICM) program was developed by Louisiana’s Coastal Protection and Restoration Authority (CPRA) and is implemented as a component of the System Wide Assessment and Monitoring Program (SWAMP). The program uses both historical data and contemporary data collections to assess and monitor changes in the aerial and subaqueous extent of islands...
Prospectivity and Extractability Modeling of Ni-Co Laterite in the Josephine Peridotite, California and Oregon, USA, from Historical and Modern Sources Prospectivity and Extractability Modeling of Ni-Co Laterite in the Josephine Peridotite, California and Oregon, USA, from Historical and Modern Sources
This dataset consists of a 200m raster suitability model for the extraction of nickel laterite in the northern California/southern Oregon, USA region. The primary model is composited from three equally weighted submodels: the relative probability of nickel laterite to be present within the study area (prospectivity); environmental and legal considerations associated with traditional...
Inventory of fluvial erosion and debris-flow activity following the 2020 Dolan Fire, California Inventory of fluvial erosion and debris-flow activity following the 2020 Dolan Fire, California
This data release is a geospatial record of flooding and debris-flow activity following the 2020 Dolan Fire along the central California coast. The postfire hydrologic responses documented here (“Inventory.csv”) are associated with a January 27, 2021, atmospheric river storm that hosted a narrow cold-frontal rain band, which produced intense rainfall over the burned area. Each entry in...