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Bathymetry and topography of the world +
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21:24:33, 9 February 2010 +
Modeled +
WGS 84 geographic (horizontal); sea level (vertical) +
1 arc-minute (~2 km) and 30 arc-second (~1 km) cell sizes (horizontal) +
Global (72N to 72S) +
Time averaged +
Global ocean bathymetry estimated from sea-surface satellite altimetry (Geosat and ERS-1) measurements and constrained by ship depth measurements. +
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. +
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16:37:56, 11 March 2025 +
Global estimated bathymetric and integrated bathy-topo relief models; 1 minute (~2 km) and 30 arc-second (~1 km) cell sizes +
GMT/Postscript +
Image:Global topography.png +
