Sea surface and the Geoid


Outline

Early Maps of the Oceans
(figures from Columbia Earth Institute library http://www.earthinstitute.columbia.edu/library/MarieTharp.html) Sea surface gravity
(Figures from the National Geophysical Data Center: http://www.ngdc.noaa.gov/mgg/bathymetry/predicted/explore.HTML) The Geoid Who cares about the Geoid?