Diurnal and subdiurnal luni-solar nutations: comparisons and effects |
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| Authors: | M Folgueira CH Bizouard J Souchay |
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| Institution: | (1) Royal Observatory of Belgium, B 1180 Bruxelles, Belgium, e-mail |
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| Abstract: | We present a comparison of the diurnal and subdiurnal terms of the three last theories of rigid Earth's rotation: SMART97, RDAN97 and REN 2000. For a better interpretation of the observations, we characterize their contribution to the polar motion and we estimate the non-rigid effects, which are at the level of a few microarcseconds. |
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| Keywords: | short period nutations polar motion Earth orientation parameters |
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