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On the Secular Motion of the Mean Pole

Published online by Cambridge University Press:  14 August 2015

Shigeru Yumi  and
Yasujiro Wakō
Shigeru Yumi
Affiliation:
International Latitude Observatory of Mizusawa, Japan
Yasujiro Wakō
Affiliation:
International Latitude Observatory of Mizusawa, Japan

Abstract

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Analyzing the notable increases in the residual latitudes of the five ILS stations, local drifts of −′0′.00156/year for Mizusawa and of +0′.00105/year for Ukiah were derived. Subtracting the apparent motion of the mean pole due to the local drifts, the secular motion of the mean pole is 0′′.00220/year in the direction 77°.7 W and this seems to be the real one.

RÉSUMÉ

En analysant les augmentations notables dans les latitudes résiduelles des cinq stations du SIL, on a déduit les dérives locales de − 0′′.00156/an pour Mizusawa et + 0′′.00105/an pour Ukiah. Si on soustrait le mouvement apparent du pole moyen qui est causé par les dérives locales, le mouvement séculaire du póle moyen est 0′′.00220/an dans la direction de 77°.7 W et il semble être le mouvement réel.

Type
Part II: Scientific Papers
Information
Symposium - International Astronomical Union , Volume 32: Continental Drift — Secular motion of the pole , 1968 , pp. 33 - 36
Copyright
Copyright © Reidel 1968 

References

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4. Yumi, S., Wakō, Y. (1966) Publ. int. Latit. Obs. Mizusawa, V, No. 2, 75–77.Google Scholar