Data:Global Topography

Revision as of 17:41, 15 February 2010 by WikiSysop (talk | contribs)

Global Topography dataset information page

Short Description

Global topography.png
Topography of the world

Statement: Global Map of Sea Floor Topography Based on Satellite Altimetry & Ship Depth Soundings

Abstract: The presented global ocean bathymetry map is the most complete, high-resolution image of sea floor topography currently available (1997). The map was constructed by blending depth soundings collected from ships with detailed gravity anomaly information obtained from the Geosat and ERS-1 satellite altimetry missions. This combination of data yields a globally uniform level of resolution ideal for displaying major tectonic features, such as mid-ocean spreading ridges or fracture zones.

Data format

Data type: Topography
Data origin: Modeled
Data format: GeoTIFF, ASCII
Other format: GTM/Postscript
Data resolution: 1minute

Data Coverage

Spatial data coverage: Global (72N to 72S)
Temporal data coverage: Time snap shot
Time period covered:


Download data: html/mar topo.html
Data source: html/mar topo.html


  • Smith, W. H. F., and D. T. Sandwell, Global seafloor topography from satellite altimetry and ship depth soundings, Science, v. 277, p. 1957-1962, 26 Sept., 1997.