Chandler Wobble and Free Core Nutation: Theory and Features

Being a torque free motion of the rotating Earth, Chandler wobble is the major component in the Earth’s polar motion with amplitude about 0.05-0.2 arcsec and period about 430-435 days. Free core nutation, also called nearly diurnal free wobble, exists due to the elliptical core-mantle boundary in th...

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Bibliographic Details
Main Authors: Sungho Na, Kyoung-Min Roh, Jungho Cho
Format: Article
Language:English
Published: Korean Space Science Society (KSSS) 2019-03-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:https://doi.org/10.5140/JASS.2019.36.1.11