Saturday, October 21, 2006

FREE 30-arc-second elevation data

This site provides FREE 30-arc-second elevation data with bathymetry for the entire world. The data was created based on the SRTM-30 data set, then holes were filled with GTOPO-30 data and bathymetry from various sources was used to replace the ocean areas. This data consists of 33 files of global topography in the same format as the SRTM30 products distributed by the USGS EROS data center. The grid resolution is 30 second which is roughly one kilometer. see of jump to the FTP server at