The earth's precession and nutations in geological epochs

Details The earth's precession and nutations in geological epochs The earth's precession and nutations in geological epochs

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985baicz..36..139b&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 36, May 1985, p. 139-141.

Astronomy and Astrophysics

Astronomy

2

Earth Rotation, Geodynamics, Nutation, Precession, Secular Variations, Angular Momentum, Flattening, Hydrostatic Pressure, Inertia, Polar Wandering (Geology), Pressure Distribution

Scientific paper

On the basis of the observed secular variations in the Earth's rotation and its principal moments of inertia, a rough estimate of the amplitudes and periods of the Earth's precession-nutation motions during the last 106years has been carried out. It is assumed that the volume as well as the total mass of the Earth have been preserved during the period given. The Earth's polar flattening might be larger in the past as well as the departures from the hydrostatic equilibrium state.

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