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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Above-water hyperspectral field spectroscopy and associated water quality measurements in the Sacramento-San Joaquin Delta, California, collected in 2024 and 2025 Above-water hyperspectral field spectroscopy and associated water quality measurements in the Sacramento-San Joaquin Delta, California, collected in 2024 and 2025
Broad-area, high-resolution, boat-based water quality mapping surveys of the Sacramento-San Joaquin Delta (Delta) were conducted in June and September of 2024. Each survey was comprised of one day of high-resolution mapping. The regions covered included Discovery Bay and Old and Middle Rivers in the South Delta Tidal Transition Zone. On each day, the route of the mapping survey was...
Estimated crop irrigation water use withdrawals in Big Chino Groundwater Subbasin of the Verde River Groundwater Basin, Arizona for 2024 Estimated crop irrigation water use withdrawals in Big Chino Groundwater Subbasin of the Verde River Groundwater Basin, Arizona for 2024
Observations of irrigated agricultural land within the Big Chino Groundwater Subbasin of the Verde River Groundwater Basin in Arizona. Crops were verified in situ once in 2024 on Aug 14th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and supplemented...
Early to Mid-Pliocene Sedimentological Data from the Yorktown Formation, near Jamestown, Virginia Early to Mid-Pliocene Sedimentological Data from the Yorktown Formation, near Jamestown, Virginia
Data consists of grain size distribution by weight in grams of samples collected from the Yorktown Formation from various localities along the James River near Smithfield and Williamsburg, Virginia. In total, data from 34 samples are included in this dataset.
Soil depth layer for the Greater Everglades Soil depth layer for the Greater Everglades
The Everglades Vulnerability Analysis (EVA) is a series of connected, modular Bayesian networks that predict the response of several Everglades indicators of ecosystem health to changes in hydrology, salinity, and the landscape. We created a soil depth layer for use in the sawgrass peat module by using universal kriging to estimate soil depth at a 400-meter resolution for individual...
Cosmogenic Nuclide, Thermally Transferred Optically Stimulated Luminescence, and Paleomagnetic data from cave sediments from Fitton Cave, northern Arkansas Cosmogenic Nuclide, Thermally Transferred Optically Stimulated Luminescence, and Paleomagnetic data from cave sediments from Fitton Cave, northern Arkansas
This data release contains tabular data (comma-separated-value format) obtained for analyses of cosmogenic nuclides, thermally transferred optically stimulated luminescence, and paleomagnetism that were collected to constrain the age of sediments within Fitton Cave, Buffalo National River, north-central Arkansas.
Catch and mark-recapture data to estimate abundance of humpback chub Gila cypha in western Grand Canyon from 2010-2024 Catch and mark-recapture data to estimate abundance of humpback chub Gila cypha in western Grand Canyon from 2010-2024
This dataset describes the catch of humpback chub (Gila cypha) in baited hoop nets from humpback chub aggregations monitoring trips that occurred 2010-2024. Additionally, this data set includes tables that describe the number of captures and recaptures for repeat visits (i.e., mark-recapture) as well as categorical habitat scores from two experts assigned to the Colorado River in western...
Topographic and bathymetric data, aerial imagery, and GPS data collected during UxS operations at Marconi Beach, Cape Cod National Seashore, Massachusetts between September 2024 and March 2025 Topographic and bathymetric data, aerial imagery, and GPS data collected during UxS operations at Marconi Beach, Cape Cod National Seashore, Massachusetts between September 2024 and March 2025
Surveys with Uncrewed Systems (UxS) were used to collect remote sensing data at Marconi Beach on Cape Cod National Seashore, Wellfleet, Massachusetts after the area experienced multiple erosion events after fall storms in 2024 and the loss of National Park Service beach access stairs. The USGS has a stationary camera system (CoastCam) and meteorological station north of the parking lot...
Random Forest Regression Model Archive for Estimating Low-Streamflow Statistics at Ungaged Locations in New York, excluding Long Island Random Forest Regression Model Archive for Estimating Low-Streamflow Statistics at Ungaged Locations in New York, excluding Long Island
This USGS data release contains R models (R Core Team, 2020) for estimating 7Q10 and 30Q10 [lowest annual 7-day and 30-day average streamflow that occurs (on average) once every 10 years] statistics at ungaged locations in or adjacent to New York State excluding Long Island. Details on model development are available in Stagnitta and others (2025). basin_characteristics.csv - 224 basin...
Effect of PFAS Exposure on American Kestrels, Eastern Ecological Science Center, 2024 Effect of PFAS Exposure on American Kestrels, Eastern Ecological Science Center, 2024
Serum samples were collected from an American Kestrel colony at the U.S. Geological Survey (USGS) Eastern Ecological Science Center and analyzed for per- and polyfluoroalkyl substances (PFAS). The sampling effort was undertaken as part of a Strategic Environmental Research and Development Program (SERDP) funded project (ER22-3388) to study the exposure effect of PFAS on immunomodulation...
Feeding and Trophic Ecology of Invasive Blue Catfish Ictalurus furcatus in an Eastern shore tributary of the Chesapeake Bay Feeding and Trophic Ecology of Invasive Blue Catfish Ictalurus furcatus in an Eastern shore tributary of the Chesapeake Bay
This study investigates the feeding and trophic ecology of invasive Blue Catfish (Ictalurus furcatus) in the Nanticoke River watershed on the Chesapeake Bay’s Eastern Shore (Maryland, U.S.A). From a total of 1,032 stomach samples collected, a subset of 88 was analyzed using 18S and COI metabarcoding primers to enhance taxonomic resolution of prey items. USGS-generated genetic reference...
Geospatial Datasets of Factors Influencing Pluvial Flood Potential 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 Pluvial Flood Potential in Long Island, New York and Near Coastal Areas Surrounding Long Island Sound in New York, Connecticut, and Rhode Island
This data release provides spatial digital data for factors that influence pluvial flood hazard potential, including closed depressions, curve number, drainage networks, topographic slope, average annual rainfall, 1-hr and 24-hour 100-year return period rainfall accumulation, and locations of recorded floods. In addition, these flood influencing factors are summarized to a common 900...
Quantification of event sediment dynamics from 2007 to 2023 for statistical analyses and Machine Learning application in the Delaware and Illinois River Basins Quantification of event sediment dynamics from 2007 to 2023 for statistical analyses and Machine Learning application in the Delaware and Illinois River Basins
This Data Release contains four child items that represent sequential data processing and modeling steps. {Child Item 1} Data Preparation contains data inputs and processing steps for select sites in the Delaware and Illinois River Basins (DRB/IRB). This child item includes five sub folders: site info, streamflow and turbidity time-series, climatological information, basin shape...