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The effect of zonal tides on the dynamical ellipticity of the Earth and its influence on the nutation

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Souchay, J. and Folgueira, Marta (1998) The effect of zonal tides on the dynamical ellipticity of the Earth and its influence on the nutation. Earth, Moon and Planets, 81 . pp. 201-216. ISSN 0167-9295

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Abstract

In this paper, the expressions of variations of the dynamical ellipticity and the principal moments of inertia due to the deformations produced by the zonal part of the tidal potential are obtained. Starting from these expressions, we have studied from equations related to Hamiltonian theory, their effects on the nutation and finally we have evaluated numerically such influences, with a level of truncation at 0.1 mu as. Thus we have shown that some coefficients are quite large with respect to the usual accuracy of up-to-date observations.


Item Type:Article
Uncontrolled Keywords:Dynamical ellipticity, Earth’s rotation, nutation, tides
Subjects:Sciences > Mathematics > Astronomy
ID Code:15401
Deposited On:30 May 2012 08:42
Last Modified:06 Sep 2018 14:59

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