geoid (1)

The Geoid is a surface of equal gravitational potential as would, for example, be characterised by the interface between to inviscid fluids (ie. the mean elevation of sea surface).

The Geoid is measured as the anomaly from a hypothetical reference spheroi

question : is there any correlation between the surface plates and the long-wavelneth geoid? (hint compare the hypsography of the topography with that of the geoid).