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Second Tesseral Harmonic Torque Due to the DynamicS of the Oceanic Surface Layer as Detected by TOPEX/POSEIDON Altimetry 1993-2000 |
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| Authors: | M Bur?a S Kenyon J Kouba Z ?íma V Vatrt V Vítek M Vojtí?ková |
| Institution: | (1) Astronomical Institute, Acad. Sci. Czech Rep., Bo ní II/1401, 141 31 Prague 4, Czech Republic bursa@ig.cas.cz;(2) National Geospatial-Intelligence Agency, St. Louis, MO 63118-3399, USA kenyons@nga.mil;(3) Geodetic Survey Division, Natural Resources Canada (NRCan), 615 Booth Street, Ottawa, Canada, K1A 0E9 kouba@geod.nrcan.gc.ca;(4) Astronomical Institute, Acad. Sci. Czech Rep., Boní II/1401, 141 31 Prague 4, Czech Republic sima@ig.cas.cz;(5) Military Geography and Hydrometeorology Office, Czech Armed Forces, 518 16 Dobruska, Czech Republic vatrt@vghur.army.cz;(6) Lipnická 1219, 396 01 Humpolec, Czech Republic;(7) Military Geography and Hydrometeorology Office, Czech Armed Forces, 518 16 Dobruska, Czech Republic marie.vojtiskova@vghur.army.cz |
| Abstract: | Estimates of the second tesseral torque due to the variations in the radial space position of the mean ocean surface as monitored by TOPEX/POSEIDON altimeter system are derived. The magnitude of the studied torque may be compared to the tidal torque and to the tesseral torque caused by deformations due to the Earth s rotation. However, such torque estimates strongly depend on the thickness of the ocean surface layer adopted in the spherical model of which the dynamics is believed to be responsible for the derived torque. The dependence on the thickness is discussed. |
| Keywords: | ocean surface layer variations tesseral torque T/P altimetry |
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