Abstract
In the framework of the restricted three-body problem, a celestial–mechanical model of the steady-state Chandler wobble of the Earth pole is proposed. The contribution of the astronomical and geophysical disturbances to the observed Earth pole oscillations is discussed based on the processing of IERS observations of the Earth pole motion, NCEP/NCAR geophysical data of the atmospheric circulation, and NASA/JPL angular momentum of the ocean. The directions of the axes x′, y′ corresponding to 50° of west longitude and 40° of east longitude, respectively, are found in the projection, onto which its coordinates have the maximum and minimum intensities of perturbed oscillations. The Earth pole oscillatory process that is in-phase with the lunar orbit precessional motion is studied, and the contribution of moving media to this process is discussed.
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This work was carried out within the basic part of the state task of the Ministry of Education and Science of the Russian Federation (project no. 721).
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Krylov, S.S., Perepelkin, V.V., Filippova, A.S. (2021). Astronomical and Geophysical Factors of the Perturbed Chandler Wobble of the Earth Pole. In: Jain, L.C., Favorskaya, M.N., Nikitin, I.S., Reviznikov, D.L. (eds) Applied Mathematics and Computational Mechanics for Smart Applications. Smart Innovation, Systems and Technologies, vol 217. Springer, Singapore. https://doi.org/10.1007/978-981-33-4826-4_15
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