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Effects of Mantle Anelasticity on the Chandler Wobble

Published online by Cambridge University Press:  07 August 2017

Zhu Yaozhong
Zhu Yaozhong*
Affiliation:
Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan 430077, P. R. China

Abstract

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On the basis of the perturbation principles of the normal mode and Love numbers, the theoretical Q of the Chandler wobble is derived by assuming that the wobble energy is totally dissipated within the mantle and by using Zschau's mantle rheology model. The results show that mantle anelasticity is likely to be the most important dissipative source of the Chandler wobble energy, and the theoretical Chandler Q is 71. Finally, the parameter α of the absorption band model is calculated, and the applicability of the model is discussed as well.

Type
Impact on Geodynamics
Information
Symposium - International Astronomical Union , Volume 156: Developments in Astrometry and their Impacts on Astrophysics , 1993 , pp. 311 - 316
Copyright
Copyright © Kluwer 

References

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