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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Surface and shallow subsurface thermal maturity data for the Arkoma basin, Ouachita Mountains, and Ozark dome region of the U.S.A. Surface and shallow subsurface thermal maturity data for the Arkoma basin, Ouachita Mountains, and Ozark dome region of the U.S.A.
Thermal maturity data (vitrinite reflectance (VRo)) from the Arkoma basin, Ouachita Mountains, and Ozark dome region of the U.S. Data were originally collected in graduate student theses and dissertations, and in a research consortia ca. 1980-1990 under the advisement and leadership of David Houseknecht during his time at University of Missouri. Location data were originally in Township...
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.
Supporting Datasets and R Code for Compound Flood Hazard Modeling in the New York - Long Island Sound Region Supporting Datasets and R Code for Compound Flood Hazard Modeling in the New York - Long Island Sound Region
This data release includes a shapefile of compound flood hazard scores and the associated input data, scripts, and a sample output file necessary for calculating rain-surge return period adjustments for Long Island Sound and its surrounding areas. The raw input data and imputation scripts are included in this data release and are located in the "Imputation and data compilation.zip"...
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...