-
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
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
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
U.S. national categorical mapping of building heights by block group from Shuttle Radar Topography Mission data
Department of the Interior —
This dataset is a categorical mapping of estimated mean building heights, by Census block group, in shapefile format for the conterminous United States. The data were... -
Federal
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa
Department of the Interior —
This dataset contains the African continent from the Hydrological Derivatives for Modeling and Analysis (HDMA) database. The HDMA database provides comprehensive and... -
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
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
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
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
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
Slope from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- Africa
Department of the Interior —
This dataset contains the slope for Africa from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The slope data were developed and distributed by... -
Federal
Digital Elevation Model (DEM) from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- South America
Department of the Interior —
This dataset contains the Digital Elevation Model (DEM) for South America from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were... -
Federal
Flow direction from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- South America
Department of the Interior —
This dataset contains the Flow Direction (FD) for South America from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The data were developed and... -
Federal
Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- North America
Department of the Interior —
This contains the North American portion of the Hydrologic Derivatives for Modeling and Analysis (HDMA) database. The HDMA database provides comprehensive and... -
Federal
Streams layers from the Hydrologic Derivatives for Modeling and Analysis (HDMA) database -- South America
Department of the Interior —
This dataset contains the streams derived from the Digital Elevation Model (DEM) for the South American continent from the Hydrological Derivatives for Modeling and... -
Federal
Topographic Position Index (TPI) derived from Shuttle Radar Topography Mission (SRTM) elevation interpolated at 1 km resolution across the Appalachian Landscape Conservation Coopertive (LCC) region
Department of the Interior —
The data contained in this file is one of several datasets produced in support of the project entitled “Classification and Mapping of Cave and Karst Resources” for... -
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
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... -
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
Sentinel-2 ACOLITE-DSF Aquatic Reflectance for the Conterminous United States (updated 2025-09-21)
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...