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Amplitude—frequency analysis of Chandler oscillations of the Earth’s pole |
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| Authors: | Yu G Markov V V Perepyolkin I N Sinitsyn E R Korepanov Hoang Tho Shi |
| Institution: | (1) Moscow Aviation Institute, Volokolamskoe sh. 4, Moscow, 125993, Russia;(2) Institute of Informatics Problems, Russian Academy of Sciences, ul. Vavilova 44, Moscow, 117333, Russia;(3) Moscow Physical and Technical Institute, ul. Kerchenskaya 1A, corp. 1, Moscow, 117303, Russia |
| Abstract: | An approximate nonlinear spectral-correlation model of fluctuations of the amplitude—frequency characteristics of the Chandler self-excited oscillations of the Earth’s pole is considered. The sensitivity of the model parameters to the asymmetry and anisotropy of fluctuation-dissipative moments of forces and to the effect of harmonic gravitation-tidal moments of forces is studied at Chandler frequency and frequencies close to it. The results of analytical and statistical modeling of the stability of the amplitude—frequency characteristics are presented. The influence of fluctuation disturbances of the white noise type on spectral-correlation characteristics of the oscillations is investigated. |
| Keywords: | 91 10 Nj |
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