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Polar motion excited by atmosphere and ocean in multi-frequency bands |
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| Authors: | Wei Chen Wenbin Shen |
| Affiliation: | CHEN Wei 1,2,SHEN Wenbin 1,3 1.Department of Geophysics,School of Geodesy , Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China 2.State Key Laboratory of Information Engineering in Surveying,Mapping , Remote Sensing,China 3.Key Laboratory of Geospace Environment , Geodesy,Ministry of Education,China |
| Abstract: | This research aims to study the influences of the atmospheric and oceanic excitations on polar motion.Power spectrum density analyses show that the efficiencies of the atmospheric and oceanic excitations differ not only at different frequencies but also in the retrograde and prograde components,but the sum of atmospheric and oceanic excitations shows the best agreement with the observed excitation. |
| Keywords: | polar motion atmospheric excitation oceanic excitation |
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