Global Multi-Resolution Topography (GMRT) v2.2 released!

04-2012: The new GMRT release includes shipboard bathymetry data from an 41 additional cruises, and extends the 100-m resolution coverage primarily in the Southern and Pacific Oceans. GMRT is the default basemap in GeoMapApp and can also be accessed through our online create maps and grids tool. Bathymetry data from GMRT is also incorporated in the Google Earth basemap.