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Diurnal/semidiurnal oceanic tidal angular momentum : Topex/Poseidon models in comparison with Earth's rotation rate Public Deposited

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  • The oceanic tidal angular momentum (OTAM) has Been demonstrated to be the primary cause for the diurnal and semidiurnal variations in the Earth's rotational rate, or ∆UT1. Three ocean tide models derived from the Topex/Poseidon altimetry mission are employed to yield predictions of ∆UT1 for eight major diurnal/semidiurnal tides. The predictions are compared with geodetic determinations of ∆UT1 from the very-long- baseline interferometry data both for long-term observations and during intensive campaigns. The agreement is good, with discrepancies typically within 2-3 μs. Systematic discrepancies observed for the well-determined M₂ tide clearly reveal the contribution of the Earth's spin libration.
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  • Chao, B. F., Egbert, G. D., and Ray, R. D., Diurnal/semidiurnal oceanic tidal angular momentum: Topex/Poseidon models in comparison with Earth’s rotation rate, Geophys. Res. Lett., 22(15), 1995.
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  • description.provenance : Made available in DSpace on 2010-04-26T21:48:43Z (GMT). No. of bitstreams: 1 Chao et al GRL 1995.pdf: 419414 bytes, checksum: 1967d553aa6ac50e3eb16071e6bb36c8 (MD5) Previous issue date: 1995-08-01
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