Analysis of daily latitude variations

Details Analysis of daily latitude variations Analysis of daily latitude variations

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978adlv.book.....g&link_type=abstract

Unknown

Physics

Data Reduction, Earth Rotation, Latitude Measurement, Oscillations, Polar Coordinates, Annual Variations, Axes Of Rotation, Earth Motion, International Cooperation

Scientific paper

The daily latitude measurements of the International polar motion service are analyzed. The results indicate that the annual polar oscillation is probably due to local phenomena with amplitudes varying from 0.05 to 0.15 min. Within the resolution of the residuals (150 cm), there is no indication of the sharp changes which might be associated with earthquake effects. Then, applying Schuster's test to a periodogram of the residuals indicates that there are probably several processes occurring at amplitudes between 0.007 and 0.03 min whose solution awaits a more precise measurement technique.

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