Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.7609s&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 89, Sept. 10, 1984, p. 7609-7620.
Physics
40
Earth Rotation, Mathematical Models, Polar Wandering (Geology), Asymptotic Methods, Deformation, Earth Mantle, Liouville Equations, Viscosity
Scientific paper
The present investigation is concerned with the theoretical development of a uniformly valid solution for describing the polar motion of a layered viscoelastic earth. The investigation has the objective to clarify certain issues and to develop systematically the theoretical procedures which are necessary for a complete understanding of the polar wander phenomena. Attention is given to a complete solution of linearized Liouville equations for polar wander, a classification of the rotational spectral responses for all models, the instantaneous speed of polar wander, the asymptotic solution for a homogeneous model, the averaged velocity of truncated models, the averaged polar speeds for the complete and the truncated models, and a time-dependent mean pole speed for the four-layer models.
Boschi Elisa
Sabadini Roberto
Yuen Dave A.
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