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Federal
Shuttle Radar Topography Mission 1 Arc-Second Digital Terrain Elevation Data - Global - National Geospatial Data Asset (NGDA) NGDA
Department of the Interior —
The Shuttle Radar Topography Mission (SRTM) was a partnership between NASA and the National Geospatial-Intelligence Agency (NGA). Flown aboard the NASA Space Shuttle... -
Federal
Global Topographic 30 Arc-Second Digital Elevation Model: Released 1996
Department of the Interior —
'GTOPO30 is a global digital elevation model (DEM) with a horizontal grid spacing of 30 arc seconds (approximately 1 kilometer). GTOPO30 was derived from several... -
Federal
Digital Elevation Model (DEM) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- North America
Department of the Interior —
This dataset contains the Digital Elevation Model (DEM) for North America from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The DEM data were... -
Federal
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Greenland
Department of the Interior —
This dataset contains the Compound Topographic Index (CTI) for Greenland from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The HDMA database... -
Federal
Processing units used in developing the raster layers for the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Europe
Department of the Interior —
This dataset contains the processing units for the European continent from the Hydrological Derivatives for Modeling and Analysis (HDMA) database. The HDMA database... -
Federal
Flow Accumulation from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Europe
Department of the Interior —
This dataset contains the Flow Accumulation (FA) for Europe from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were developed and... -
Federal
Elevation-bathymetry models for the Lake Superior region
Department of the Interior —
New land-bathymetry and land-lake surface elevation models were produced for the Lake Superior region. The models combine Shuttle Radar Topography Mission (SRTM)... -
Federal
Hydrologic Derivatives for Modeling and Applications (HDMA) database
Department of the Interior —
The Hydrologic Derivatives for Modeling and Analysis (HDMA) database provides comprehensive and consistent global coverage of raster and vector topographically... -
Federal
Processing unit used in developing the raster layers for the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa
Department of the Interior —
This dataset contains the processing units for the African continent from the Hydrological Derivatives for Modeling and Analysis (HDMA) database. The HDMA database... -
Federal
Streams layers from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa
Department of the Interior —
This dataset contains the streams derived from the Digital Elevation Model (DEM) for the African continent from the Hydrological Derivatives for Modeling and Analysis... -
Federal
Compound Topographic Index (CTI) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Europe
Department of the Interior —
This dataset contains the Compound Topographic Index (CTI) for Europe from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were... -
Federal
Catchments layers from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Europe
Department of the Interior —
This dataset contains the catchments derived from the Digital Elevation Model (DEM) for the European continent from the Hydrological Derivatives for Modeling and... -
Federal
Digital Elevation Model (DEM) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Europe
Department of the Interior —
This dataset contains the Digital Elevation Model (DEM) for Europe from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were developed... -
Federal
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Asia
Department of the Interior —
This contains the Asian portion of the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The HDMA database provides comprehensive and consistent... -
Federal
Vertical Land Change, Chippewa, Eau Claire, Jackson, Monroe, Trempealeau, and Wood Counties, Wisconsin
Department of the Interior —
The vertical land change activity focuses on the detection, analysis, and explanation of topographic change. These detection techniques include both quantitative... -
Federal
Vertical Land Change, Itasca and St. Louis Counties, Minnesota
Department of the Interior —
The vertical land change activity focuses on the detection, analysis, and explanation of topographic change. These detection techniques include both quantitative... -
Federal
Flow Accumulation (FA) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa
Department of the Interior —
This dataset contains the Flow Accumulation (FA) for Africa from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The FA data were developed and... -
Federal
Flow accumulation from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Asia
Department of the Interior —
This dataset contains the Flow Accumulation (FA) grid for the Asian continent from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The DEM data... -
Federal
Sentinel-2 ACOLITE-DSF Aquatic Reflectance for the Conterminous United States (updated 2025-09-30)
Department of the Interior —
This dynamic data release presents an aquatic reflectance product with 20-meter spatial resolution derived from Sentinel-2 satellite imagery for the conterminous... -
Federal
Streams layers from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Asia
Department of the Interior —
This dataset contains the streams derived from the Digital Elevation Model (DEM) for the Asian continent from the Hydrological Derivatives for Modeling and Analysis...