Extreme cycles of motion of the earth's pole

Details Extreme cycles of motion of the earth's pole Extreme cycles of motion of the earth's pole

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984sva....28..698k&link_type=abstract

(Astronomicheskii Zhurnal, vol. 61, Nov.-Dec. 1984, p. 1192-1197) Soviet Astronomy (ISSN 0038-5301), vol. 28, Nov.-Dec. 1984, p.

Astronomy and Astrophysics

Astronomy

Extremum Values, Polar Coordinates, Polar Wandering (Geology), Secular Variations, Amplitude Distribution Analysis, Climatology, Earth Rotation, Relaxation Time, Resonance, Spectrum Analysis

Scientific paper

Extreme cycles of the Chandler motion of the earth's pole are investigated. It is established that these cycles consist of growth and damping phases. The parameters characterizing the resonance mechanism of excitation of the motion of the earth's pole differ considerably from cycle to cycle, while the parameters of the damping phases are practically constant. This indicates the unsteadiness of the excitation mechanism and the constancy of the process of relaxation of the motion of the earth's pole. The results obtained can be used in geophysics and, in particular, in meteorology to study large-scale, long-period phenomena of atmospheric dynamics through the use of the connection between seasonal movements of air masses and the earth's rotation.

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