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Analysis of recent polar motion data in view of excitation function and possible seismic causes

Published online by Cambridge University Press:  03 August 2017

H. Lenhardt  and
E. Groten
H. Lenhardt
Affiliation:
Institute of Physical Geodesy, Petersenstraße 13, 6100 Darmstadt, Germany
E. Groten
Affiliation:
Institute of Physical Geodesy, Petersenstraße 13, 6100 Darmstadt, Germany

Abstract

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Recent BIH-data from September 1979 - September 1986 have been deconvolved. The excitation function has been considered in detail and a spectral analysis indicates that there are atmospheric contributions; moreover, the September 19, 1985 Mexican Earthquake has been related to polar motion and a possible tidal triggering mechanism has been investigated.

Type
VI. Causes of Variations in Earth Rotation Parameters
Information
Symposium - International Astronomical Union , Volume 128: Earth's Rotation and Reference Frames for Geodesy and Geodynamics , 1988 , pp. 393 - 398
Copyright
Copyright © Reidel 1988 

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