A new investigation of the secular drift of the earth's pole

Details A new investigation of the secular drift of the earth's pole A new investigation of the secular drift of the earth's pole

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986acasn..27..352z&link_type=abstract

(Acta Astronomica Sinica, vol. 27, no. 4, 1986, p. 352-359) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 11, June 1

Computer Science

Numerical Analysis

Earth Surface, Geomagnetic Latitude, Magnetic Poles, Latitude Measurement, Numerical Analysis, Secular Variations

Scientific paper

The secular drift of the earth's pole was investigated on the basis of nine long series of latitude observations. It is shown that, in the present century, the earth's pole has been moving approximately along 70 deg W at a mean rate of 0.0016 arcsec/yr, much less than the 0.0035 arcsec/yr derived from the ILS sequence. In addition, relative to the Europe-Asia plate, the whole North American continent shows a northward drift of about 6 cm/yr. It is concluded that the Conventional Internal Origin is far from being fixed on the earth's surface and is not suitable as the origin of the Earth Reference System.

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