A comparative study of the coordinates of the Earth's pole from 1900 to 1990

Details A comparative study of the coordinates of the Earth's pole from 1900 to 1990 A comparative study of the coordinates of the Earth's pole from 1900 to 1990

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999arep...43...59k&link_type=abstract

Astronomy Reports, Volume 43, Issue 1, January 1999, pp.59-63

Astronomy and Astrophysics

Astronomy

Scientific paper

Three series of coordinates for the Earth's pole covering the period from 1900 to 1990 are compared. The two most uniform and prolonged series (the `Kiev series' in the frame of the mean pole at the observation epoch and the series obtained by Yumi and Yokoyama in the CIO frame) are compared with polar coordinate data processed using a new global determination of the Earth orientation parameters. Periodogram and two-channel autoregression analyses did not reveal any significant discrepancies in the main periodic components in the coordinate series compared (the Chandler and annual components). The relative positions of the coordinate-frame origins were calculated before and after eliminating trends.

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