Bathymetry
- ETOPO2, a global database, with a horizontal grid spacing of 2 arc minutes (approximately 4km).
Warning: This map has geolocation errors, corrected in the next version. Do not use it anymore!
Source http://www.ngdc.noaa.gov/mgg/global/global.html
Download etopo2.nc.gz
- ETOPO2 v2 (2006), a global database, with a horizontal grid spacing of 2 arc-min (approximately 4km).
Update of the previous version ETOPO2, including correction of the geolocation of data.
Source http://www.ngdc.noaa.gov/mgg/global/global.html
Download ETOPO2v2c_i16.tgz
- ETOPO1 (2008), a global database, with a horizontal grid spacing of 1 arc-min (approximately 2km).
There are two versions: the "Ice Surface" version (tops of the Antarctic and Greenland ice sheets) and the "Bedrock" version (bedrock). As the previous versions ETOPO2 are "Ice Surface" data types, only the "Ice Surface" version is proposed here.
Source http://www.ngdc.noaa.gov/mgg/global/global.html
Download ETOPO1_Ice_c_i16.tgz
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