Short period tidal variations of earth rotation

Details Short period tidal variations of earth rotation Short period tidal variations of earth rotation

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ang....37..213y&link_type=abstract

(Association Internationale de Geodesie and COSPAR, Symposium International sur la Geodesie Spatiale et ses Applications, Cannes

Statistics

Applications

2

Earth Rotation, Earth Tides, Lunar Rangefinding, Moments Of Inertia, Periodic Variations, Earth Core, Laser Range Finders, Oceans, Radar Signatures

Scientific paper

It is explained that the tidal deformation of the earth's polar moment of inertia by the moon and sun cause periodic variations in rotation. The short period oscillations give rise to a meter-sized, diurnal signature in the lunar laser ranging data obtained at McDonald Observatory. A solution is given for the scale parameter k/C at fortnightly and monthly tidal frequencies. The results are compared with those obtained by other investigators and with a theoretical estimate which includes the effect of oceans and a decoupled fluid core.

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