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Astrometric and space-geodetic observations of polar wander

Vondrák, Jan; Gross, Richard S.

Optical astrometric measurements of star positions taken during the past century have been recently re-reduced using the final Hipparcos star catalog in order to determine variations in the mean location of the Earth's rotation pole with respect to the Earth's crust. This newly available polar motion series, which is the longest homogeneous polar …