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Temporal Variations in Sea Surface Topography and Dynamics of the Earth's Inertia Ellipsoid |
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| Authors: | Bur?a Milan Kouba Jan Raděj Karel True Scott A Vatrt Viliam Vojtí?ková Marie |
| Institution: | (1) Astronomical Institute, Czech Academy of Sciences of the Czech Republic, Prague, Czech Republic;(2) Geodetic Survey Division, Natural Resources Canada, Ottawa, Canada;(3) Topographical Service of the Army of the Czech Republic, Topographical Institute VTOPU, Dobru ka, Czech Republic;(4) National Image and Mapping Agency, St. Louis, MO, 63118-3399, U.S.A. |
| Abstract: | Temporal variations in the nine elements of the Earth's inertia ellipsoid due to sea surface topography dynamics were derived from TOPEX/POSEIDON altimeter data 1993 - 1996. The variations amount to about 10 mm in the position of the center of the Earth's inertia ellipsoid (E i ), 0.15' in the polar axis direction of E i and to about 0.0003 in the denominator of its polar flattening. The approach used is based on the temporal variations of distortions computed by means of the geopotential model EGM96 which is used as reference. |
| Keywords: | SST satellite altimetry dynamics inertia tensor |
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