EGM96: The NASA GSFC and NIMA Joint Geopotential Model

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Model validation using dynamic ocean topography comparisons

RMS Difference between ocean dynamic topography estimates using two years of TOPEX data with Geoid Undulation Models and that from the POCM_4B GCM Model. Values are calculated through orthonormal functions defined over the ocean to degree 14 and 24; from Rapp [1996].


Geopotential Model To Deg. 14
(cm)
To Deg. 24
(cm)
JGM-3/OSU91A 12.4 13.8
EGM96 9.6 11.2


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