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Improved Analytic Nutation Model
1988
Symposium - International astronomical union
Models describing earth's nutations can be separated into two major components, plus several small perturbations, of which ocean tides and solid friction are the most significant. The primary element of a successful model is an accurate rigid earth nutation theory. The effect of mantle elasticity and differential nutation of the fluid core is then obtained as a correction factor which multiplies the rigid body result. Wahr's (1981) theory is certainly the most sophisticated elastodynamic
doi:10.1017/s0074180900135077
fatcat:3hv2k6ao35dnlcku26nhymspem