Variations in Earth Rotation - Couverture rigide

Couverture rigide

ISBN 10 : 0875904599 ISBN 13 : 9780875904597

Editeur : American Geophysical Union, 1991

Synopsis

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 59. As part of the Nineteenth General Assembly of The International Union of Geodesy and Geophysics Symposium (IUGG) in Vancouver, Canada, Union Symposium U4, "Variations in Earth Rotation" was held August 18-19 1987. The Convenor was Dennis D. McCarthy, U.S. Naval Observatory with P. Paquet, Observatoire Royal de Belgique and M. G. Rochester, St. Johns University serving as co-convernors. In a session on internal structure of the Earth papers dealt with the geophysical effects on Earth rotation parameters. Mantle anelasticity increases the free core nutation (FCN) period by a few days. The period of the FCN and the amplitudes of the main nutation components are sensitive to the ellipticity of the core?]mantle boundary (CMB), and a non-hydrostatic increase of 400m in the flattening of the CMB is a possible explanation of the discrepancies from theory. An alternative suggestion rests on the subseismic description of the nutation spectrum of the stratified liquid core. Evidently new models will have to take into account contributions from the oceans, mantle anelasticity, non-hydrostatic pre-stress, CMB topography and internal core structure.

Détails de l'édition

• Éditeur: American Geophysical Union
• Date d'édition: 1991
• Langue: anglais
• ISBN 10: 0875904599
• ISBN 13: 9780875904597
• Reliure: Relié
• Numéro d'édition: 1
• Nombre de pages: 205
• Éditeur: McCarthy Dennis D, Carter William E
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible