Tides for a convective Earth

Details Tides for a convective Earth Tides for a convective Earth

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999jgr...104.1035d&link_type=abstract

Journal of Geophysical Research, Volume 104, Issue B1, p. 1035-1058

Physics

51

Geodesy And Gravity: Tides-Earth, Geodesy And Gravity: Earth'S Interior-Dynamics, Geodesy And Gravity: Planetary Geodesy And Gravity, Geodesy And Gravity: Terrestrial Reference Systems

Scientific paper

In this paper we give values of the tidal gravimetric factor as well as of the Love numbers for the tidal surface displacement and for the tidal mass redistribution potential that are consistent with the presently adopted definitions. We present analytical expressions for these quantities and compute numerical values for two rotating, nonspherical Earth models. In the first model the Earth is everywhere in hydrostatic equilibrium, and the inner core and mantle are both elastic. In the second model the Earth is ellipsoidal with an inelastic mantle and with a nonhydrostatic initial state for which the effects of mantle convection and its associated boundary deformations are considered. This latter model is constrained to reproduce the observed free core nutation period and global Earth dynamical flattening.

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