Smith and Sandwell Surface relief

Surface topography of the earth based on satellite and in situ measurements

Satellite and in situ measurements are combined to form a data set of the earth's surface relief. Note that ocean values are negative and orography over land is positive.

Reference: 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

Variables	altitude (m)
Zonal	Global by 1/30 deg
Meridional	70S to 70N by 1/30 deg
Vertical
Temporal
Static?	yes
Volume
Server	public:
Source	http://topex.ucsd.edu/marine_topo/mar_topo.html
Acquired	Jan 1, 2005
APDRC contact	Jim Potemra
Supplements