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Observations of Luni-Solar and Free Core Nutation
Published online by Cambridge University Press: 12 April 2016
Abstract
An analysis of the differences between observed nutation angles and the 1980 IAU Nutation Theory shows the existence of currently unmodeled effects. An empirical set of corrections to the 1980 IAU Nutation Theory is presented and compared with current geophysical models. A prograde periodic variation (period ≈ 420 days), which may be related to the theoretical free core nutation, is apparently seen.
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- Part 2. Poster Papers
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- Copyright © United States Naval Observatory 1991
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