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Global Topography dataset information page
|Bathymetry and topography of the world|
Statement: Global estimated bathymetric and integrated bathy-topo relief models; 1 minute (~2 km) and 30 arc-second (~1 km) cell sizes
Abstract: Global ocean bathymetry estimated from sea-surface satellite altimetry (Geosat and ERS-1) measurements and constrained by ship depth measurements.
|Data format:||GeoTIFF, ASCII|
|Data resolution:||1 arc-minute (~2 km) and 30 arc-second (~1 km) cell sizes (horizontal)|
|Datum:||WGS 84 geographic (horizontal); sea level (vertical)|
Spatial data coverage: Global (72N to 72S)
Temporal data coverage: Time averaged
Time period covered:
- 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.