Open AccessOn the influence of the method for estimating the parameters of the pole tide on the amplitude of the steady motion of the Earth’s pole
Author(s) -
С. С. Крылов,
V. V. Perepelkin,
I. V. Skorobogatykh,
Zaw Aung Myo
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1925/1/012089
Subject(s) - speed wobble , polar motion , amplitude , inertia , position (finance) , geodesy , control theory (sociology) , disturbance (geology) , physics , work (physics) , magnitude (astronomy) , earth's rotation , mechanics , geology , mathematics , classical mechanics , optics , computer science , paleontology , artificial intelligence , economics , thermodynamics , astronomy , control (management) , finance
The steady-state Chandler wobble of the Earth’s pole is investigated for various choices of the pole tide model. The aim of the work is to estimate the parameters of the stationary Chandler wobble. The steady motion of the Earth’s pole is considered taking into account the pole tide, which depends both on the position and on the speed of the pole. The Chandler motion of the Earth’s pole is studied on the basis of the Euler-Liouville equations with a variable tensor of inertia. It is shown that both the choice of the pole tide model and the method of estimating the parameters of the chosen model significantly affect the parameters of the steady oscillatory process of the earth’s pole and the amplitude of the necessary disturbance to excite the observed Chandler wobble.