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Chandler oscillations of the Earth’s pole in the presence of fluctuational dissipative perturbations

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Abstract

Effects of fluctuational dissipative perturbations on the Earth’s polar motion due to random components of the centrifugal potential are studied using a numerical-analytical approach. A combined model for the polar fluctuations is used to take into account stochastic components of the polar tides. Fluctuations excited at frequencies close to the Chandler frequency are analyzed using observations of sea level and the gravitional acceleration. Equations describing the correlation characteristics of the polar motions are presented.

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Authors and Affiliations

  1. Moscow Institute of Aviation, Volokolamskoe sh. 4, Moscow, 125080, Russia

    Yu. G. Markov, V. V. Perepelkin & A. S. Filippova

  2. Institute of Astronomy, Russian Academy of Sciences, ul. Pyatnitskaya 48, Moscow, 109017, Russia

    L. V. Rykhlova

Authors
  1. Yu. G. Markov
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  2. V. V. Perepelkin
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  3. L. V. Rykhlova
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  4. A. S. Filippova
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Corresponding author

Correspondence to L. V. Rykhlova.

Additional information

Original Russian Text © Yu.G. Markov, V.V. Perepelkin, L.V. Rykhlova, A.S. Filippova, 2017, published in Astronomicheskii Zhurnal, 2017, Vol. 94, No. 2, pp. 174–182.

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Markov, Y.G., Perepelkin, V.V., Rykhlova, L.V. et al. Chandler oscillations of the Earth’s pole in the presence of fluctuational dissipative perturbations. Astron. Rep. 61, 160–168 (2017). https://doi.org/10.1134/S1063772917020020

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  • DOI: https://doi.org/10.1134/S1063772917020020

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