| New Solution for the Earth’s Free Wobble and Its Geophysical Implications |
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| 基金项目： | Supported by the Special Project Fund of State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (China);;the Engagement Fund of Outstanding Doctoral Dissertation of Wuhan University (No.22);;the Ph.D. Candidates Self-research (including 1+4) Program of Wu-han Unversity in 2008 (No.49);;the Open Fund of Key Laboratory of Geospace Environment and Geodesy, Ministry of Education,China (No.08-02-02) |
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| 摘 要： | In this paper, the theory of the free wobble of the triaxial Earth is developed and new conclusions are drawn: the Euler period should be actually expressed by the first kind of complete elliptic integral; the trace of the free polar motion is elliptic and the orientations of its semi-minor and major axes are approximately parallel to the Earth’s principal axes A and B, respectively. In addition, the present theory shows that there is a mechanism of frequency-amplitude modulation in the Chandler wobble, whi...
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