The Japan Aerospace Exploration Agency (JAXA) releases the global digital surface model (DSM) dataset with a horizontal resolution of approx. 30-meter mesh (1 arcsec) free of charge. The dataset has been compiled with images acquired by the Advanced Land Observing Satellite "DAICHI" (ALOS).
This web application enables the investigation into a collection of Arctic DEMs. These are primarily created by the Polar Geospatial Center covering the majority of the Arctic. These are preliminary datasets and have yet to be cleaned up and corrected. Additionally large collections of Multispectral Landsat data collected for the Arctic are also accessible. These services are temporal and the app provides tools to review how Arctic has changed over time.
The 3D Elevation Program (3DEP) initiative is being developed to respond to growing needs for high-quality topographic data and for a wide range of other three-dimensional representations of the Nation's natural and constructed features.
8-meter resolution digital elevation model covering 98% of the continent of Antarctica.
The release of this DEM provides access to detailed maps of Antarctica’s terrain.
REMA is available for download as mosaic tiles (8 meter posting for most areas, 2 meter posting for rock outcrops and other areas of interest) and 2 meter posting strips. GIS data in the form of shapefiles provides an index file for identifying strips segments.
"TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurements) is an Earth observation radar mission that consists of a SAR interferometer built by two almost identical satellites flying in close formation. With a typical separation between the satellites of 120m to 500m a global Digital Elevation Model (DEM) has been generated."
TanDEM-X 12m (0.4 arcsec) DEM
For the DEM as well as for the 7 information layers quicklooks in a GeoTIFF (*.tif) raster format are provided, associated with a KML file for inspection in Google Earth. Additional quicklook raster files with a legend and a map border in PNG (*.png), but without an associated KML file, are available as well.
The Shuttle Radar Topography Mission (SRTM) was flown aboard the space shuttle Endeavour February 11-22, 2000. The National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency (NGA) participated in an international project to acquire radar data which were used to create the first near-global set of land elevations.