Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-26T03:24:05.666Z Has data issue: false hasContentIssue false
  • English
  • Français

On the Relative Motion of the Earth's Axis of Figure and the Pole of Rotation

Published online by Cambridge University Press:  14 August 2015

Angelo Poma  and
Edoardo Proverbio
Angelo Poma
Affiliation:
Stazione Astronomica Internazionale, Cagliari, Italy and Istituto di Astronomia dell'Università, Cagliari, Italy
Edoardo Proverbio
Affiliation:
Stazione Astronomica Internazionale, Cagliari, Italy and Istituto di Astronomia dell'Università, Cagliari, Italy

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The motion of the Earth's axis of inertia has been derived, taking elastic deformation into account, from the polar coordinates determined by the BIH for the period from 1962.0 to 1975.0. Characteristics of the motion of both the pole of inertia and the pole of rotation have been examined. The secular displacement of these poles relative to the pole defined by the low order harmonics C21, S21 determined from observations of satellites seems to confirm that the inertial reference axis has an apparent wandering motion within the deformable Earth.

Type
Part II: Polar Motion
Information
Symposium - International Astronomical Union , Volume 82: Time and the Earth's Rotation , 1979 , pp. 115 - 122
Copyright
Copyright © Reidel 1979 

References

Balmino, G., Reigber, C., and Moynot, B.: 1976, “Deutsche Geoadatische Kommission” Reihe A, Heft No. 86 Google Scholar
Dramba, C.: 1964, “Studii si Cercetari de Astronomie”, tome 9, No. 1.Google Scholar
Dramba, C.: 1976, “Rendiconti del Seminario della Facoltà di Scienze dell'Università di Cagliari”, Vol XLVI, pp. 273–280.Google Scholar
Dramba, C., and Stanila, G.: 1969, “Studii si Certari de Astronomie” tome 14, No. 1.Google Scholar
Gaposchkin, E.M.: 1968, “Proc. of the Symposium on Modern Questions of Celestial Mechanics”, Centro Internazionale Matematico Estivo.Google Scholar
Gaposchkin, E.M.: 1973, “Smithsonian Standard Earth III”, SAO Special report No. 353.Google Scholar
Melchior, P.: 1972, in Melchior, P. and Yumi, S. (eds.), “Rotation of the Earth”, IAU Symp. 48, pp. XI–XXII.Google Scholar
Munk, W.H., and MacDonald, G.J.F.: 1960, “The rotation of the Earth”, Cambridge Univ. Press, England.Google Scholar
Smith, D.E., Lerch, F.J., Marsh, J.G., Wagner, C.A., Kolenkiewicz, R., and Khan, M.A.: 1976, “J. Geophys. Res.”, 81, No. 5.Google Scholar
Volterra, V.: 1895, “Atti Accad. Torino”, 30, pp. 547–561.Google Scholar
Volterra, V.: 1898, “Acta Math.”, 22, pp. 201–357.Google Scholar
Wagner, C., Lerch, F.J., Brownd, J.E., and Richardson, J.A.: 1976, GSFC Report X-921-70-20.Google Scholar