Differences between Mean Sea Levels for the Pacific, Atlantic and Indian Oceans From Topex/Poseidon Altimetry

Geopotential values ―W of the mean equipotential surfaces representing the mean ocean topography were computed on the basis of four years (1993 - 1996) TOPEX/POSEIDON altimeter data: ―W = 62 636 854.10m2s−2for the Pacific (P), ―W = 62 636 858.20m2s−2for the Atlantic (A), ―W = 62 636 856.28m2s−2for the Indian (I) Oceans. The corresponding mean separations between the ocean levels were obtained as follows: A − P = − 42 cm, I− P = − 22 cm, I − A = 20 cm, the rms errors came out at about 0.3 cm. No sea surface topography model was used in the solution.