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Gridded Terrain and Bathymetry Products

Read terrain data in DTED, ETOPO, GTOPO30, SATBATH, SDTS DEM, or USGS DEM formats


demdataui UI for selecting digital elevation data
dted Read U.S. Department of Defense Digital Terrain Elevation Data (DTED)
dteds DTED filenames for latitude-longitude quadrangle
etopo Read gridded global relief data (ETOPO products)
etopo5 Read global 5-min digital terrain data
globedem Read Global Land One-km Base Elevation (GLOBE) data
globedems GLOBE data filenames for latitude-longitude quadrangle
gtopo30 Read 30-arc-second global digital elevation data (GTOPO30)
gtopo30s GTOPO30 data filenames for latitude-longitude quadrangle
satbath Read 2-minute terrain/bathymetry from Smith and Sandwell
tbase Read 5-minute global terrain elevations from TerrainBase
usgs24kdem Read USGS 7.5 minute (30 meter or 10 meter) Digital Elevation Models
usgsdem Read USGS 1-degree (3-arc-second) Digital Elevation Model
usgsdems USGS 1-degree (3-arc-sec) DEM filenames for latitude-longitude quadrangle

Examples and How To

Digital Terrain Elevation Data from NGA

Nearly all published terrain elevation data is in the form of data grids.

Digital Elevation Model Files from USGS

The United States Geological Survey (USGS) has prepared terrain data grids for the U.S.


Reading Elevation Data Interactively

Using the dteds, dted, and demdataui functions

Determining What Elevation Data Exists for a Region

Several Mapping Toolbox™ functions and a GUI help you identify file names for and manage digital elevation model data for areas of interest.

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