Other
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009acasn..50..170m&link_type=abstract
Acta Astronomica Sinica, vol. 50, no. 2, p. 170-179
Other
Earth, Astrometry: Earth Rotation
Scientific paper
The global oceans play important roles in Chandler Wobble excitation other than the atmosphere. This study investigate systemically the excitations of the Chandler Wobble by the Pacific, Indian and Atlantic Oceans, based on the output data of ocean current velocity field and ocean bottom pressure field from the ocean circulation model of the ``Estimating the Circulation and Climate of the Ocean (ECCO)'' during 1980-2005. The result shows that the three oceans make different contributions to Chandler Wobble excitation. The mean energy of Chandler Wobble excitation by the Pacific Ocean is the highest one among three oceans and it can provide about 22.2% of the observed mean energy of the Chandler Wobble excitation. The Indian and Atlantic contributions are about 12.7% and 7.1% of the observed mean energy of the Chandler Wobble excitation respectively. The strong 1982-1983 ENSO phenomena may increase the mean energy of the Chandler Wobble excitation by the Pacific Ocean significantly.
Chen Jing-Ling
Liao De-Chun
Ma Jian
Zhou Yan-Hong
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