Comments on 'Polar motions excited by a convecting viscous mantle'

Details Comments on 'Polar motions excited by a convecting viscous mantle' Comments on 'Polar motions excited by a convecting viscous mantle'

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.2495r&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 22, p. 2495-2496

Physics

1

Earth Rotation, Mass Distribution, Perturbation Theory, Polar Wandering (Geology), Angular Momentum, Earth Mantle, Geodesy, Liouville Equations

Scientific paper

In the last few years there has been a renewed interest in the problem of true polar wander (TPW) induced by slowly varying mass redistribution. Moser et al., (1992) disagrees with our own results, Ricard et. al. (1992) on three different points: (1) The amplitude of the non-diagonal inertia perturbations that should be considered; (2) The importance of a possible relative angular momentum carried by the mantle; and (3) The rotational equations for the Earth. In this comment, we want to briefly restate the basic equations and to discuss the three points of disagreements.

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