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.
Filter Total Items: 16219
Data and Model Archive for Simulations of Seawater Restoration on Diked Salt Marshes Data and Model Archive for Simulations of Seawater Restoration on Diked Salt Marshes
This dataset and model archive provides geochemical modeling input and selected output data used in simulations of seawater restoration on historically diked salt marshes. Biogeochemical changes resulting from seawater reintroduction were simulated using the computer program PHREEQC (Parkhurst and Appelo, 2013) to help support efforts to restore tidal flow and associated estuarine...
Salinas Valley Hydrologic System: Land Use Data Salinas Valley Hydrologic System: Land Use Data
This digital dataset contains the land use data used for both the Salinas Valley Hydrologic Models (SVHM): the Salinas Valley Watershed Model (SVWM), the Salinas Valley Integrated Hydrologic Model (SVIHM), and Salinas Valley Operational Model (SVOM)). Land use data were compiled from available state, local, and federal datasets. Available multi-year composite land use data were...
Salinas Valley Watershed Model: Application of Hydrologic Simulation Program-FORTRAN (HSPF) Salinas Valley Watershed Model: Application of Hydrologic Simulation Program-FORTRAN (HSPF)
This model archive contains the datasets, procedures, and necessary program code used to describe the Salinas Valley Watershed Model (SVWM). The SVWM simulates the daily historical water balance and hydrologic conditions for the Salinas Valley study area including the many un-gaged tributary subdrainages in the rugged and mountainous upland areas surrounding flat-lying valley lowlands...
Select Borehole Data for the East Mesa area and vicinity, Imperial County, CA Select Borehole Data for the East Mesa area and vicinity, Imperial County, CA
This data release provides borehole location and lithology information from selected boreholes in the East Mesa and surrounding areas of Imperial County, California. The area of focus includes parts of the Imperial, Ogilby, and Amos Valley groundwater basins. The purpose of the study is to estimate the future Total Dissolved Solids (TDS) concentration in groundwater pumped by the LCWPS...
Bathymetric data for Selected Resacas in the Brownsville, Texas area, September 2021 through April 2023 Bathymetric data for Selected Resacas in the Brownsville, Texas area, September 2021 through April 2023
The U.S. Geological Survey, in cooperation with the City of Brownsville, Texas, collected bathymetric data for selected resacas (former distributary channels and oxbow lakes of the Rio Grande that are now cut off from the river) in the Brownsville, Texas area during September 2021 through April 2023. Bathymetric survey points were collected using real-time network Global Navigation...
USGS 3D Hydrography Program (3DHP) Data Collaboration Announcement Projects from Fiscal Year 2024 to Present (ver. 2.0, December 2025) USGS 3D Hydrography Program (3DHP) Data Collaboration Announcement Projects from Fiscal Year 2024 to Present (ver. 2.0, December 2025)
These data depicts 3D Hydrography Program (3DHP) Data Collaboration Announcement (DCA) hydrography data acquisition projects from federal fiscal year (FY) 2024 to present. The DCA provides a mechanism for partnering with the USGS and other Federal agencies to acquire high-quality hydrography data to provide the Nation with high-resolution hydrographic products to support a broad array of
Chronic wasting disease (CWD) survey by hunters in Massachusetts in early 2023. Chronic wasting disease (CWD) survey by hunters in Massachusetts in early 2023.
We implemented an online survey questionnaire for adult Massachusetts licensed hunters in December 2022-February 2023 using the Qualtrics survey platform (Qualtrics, Provo, UT). The online survey covers a number of topics related to chronic wasting disease (CWD) such as knowledge, risk perception, management acceptability, hunting behavior, channel use, and trust in different sources. Of...
Long-term monotonic trends in aquifer and regional groundwater metrics in the United States through 2020 Long-term monotonic trends in aquifer and regional groundwater metrics in the United States through 2020
The U.S. Geological Survey (USGS) Water Resources Mission Area (WMA) is working to address a need to understand where the Nation is experiencing water shortages or surpluses relative to the demand by delivering routine assessments of water supply and demand. A key part of these national assessments is identifying long-term trends in water availability, including groundwater and surface...
Data for the report Evapotranspiration from the Lower Walker River Basin, West-Central Nevada, Water Years 2005–07 Data for the report Evapotranspiration from the Lower Walker River Basin, West-Central Nevada, Water Years 2005–07
This vector data set represents the evapotranspiration (ET) discharge quantification area polygon in the lower Walker River basin.
Particle size distribution of MIS 5a aeolianites across windward islands of the Bahamas (Great Abaco, Eleuthera, San Salvador, and Long Island) (ver. 1.1, May 2025) Particle size distribution of MIS 5a aeolianites across windward islands of the Bahamas (Great Abaco, Eleuthera, San Salvador, and Long Island) (ver. 1.1, May 2025)
Recent Quaternary carbonate island sediment preservation along low-latitude coastal regions, such as in the Bahamas, contain sediment sourced from adjacent marine environments during interglacial intervals. During these interglacial intervals, denoted by odd-numbered Marine Isotope Stages (e.g., MIS 1, 3, 5), sea levels are at a highstand relative to glacial periods (e.g., MIS 2, 4, 6)...
DESIS and PRISMA spectral library of agricultural crops in California's Central Valley in the 2021 Growing Season DESIS and PRISMA spectral library of agricultural crops in California's Central Valley in the 2021 Growing Season
Here we provide Germany’s Deutsches Zentrum fu¨r Luft- und Raumfahrt (DLR) Earth Sensing Imaging Spectrometer (DESIS) and Italy’s ASI’s PRecursore IperSpettrale della Missione Applicativa (PRISMA) Derived Spectral Library of Agricultural Crops for California. It was developed using DESIS and PRISMA hyperspectral data acquired in August 2021 near Fresno, CA. The 4-bin DESIS image has 60...
Digital Representation of Isopach Maps for Selected Geologic Periods from an Atlas Published by Sloss and others (1960) Digital Representation of Isopach Maps for Selected Geologic Periods from an Atlas Published by Sloss and others (1960)
Information of hydrogeologic and geologic importance from the book, "Lithofacies Maps: An Atlas of the United States and Southern Canada" (Sloss and others, 1960) detailing geologic periods, including the Cambrian, Ordovician, Silurian, and Devonian were digitized from scanned maps. Isopach contours were captured and, along with Geologic Map of North America (GMNA) information (Garrity...