Atmospheric excitation of polar motion |
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| Authors: | Wei Chen Wenbin Shen Xiaowei Dong |
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| Institution: | (1) Kanalpromenade 3, 14513 Teltow, Germany |
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| Abstract: | The polar motion excited by the fluctuation of global atmospheric angular momentum (AAM) is investigated. Based on the global
AAM data, numerical results demonstrate that the fluctuation of AAM can excite the seasonal wobbles (e.g., the 18-month wobble)
and the Chandler wobble, which agree well with previous studies. In addition, by filtering the dominant low frequency components,
some distinct polar wobbles corresponding to some great diurnal and semi-diurnal atmospheric tides are found. |
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| Keywords: | polar motion atmospheric excitation 18-month wobble Chandler wobble atmospheric tides |
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