Deformation Processes in the Lithosphere Related to the Nonuniformity of the Earth’s Rotation

Milyukov, V.K.; Kravchyuk, V.K.; Mironov, A.P.; Latynina, L.A.

Авторы: Milyukov V.K., Kravchyuk V.K., Mironov A.P., Latynina L.A.
Журнал: Izvestiya. Physics of the Solid Earth
Том: 47
Номер: 3
Год издания: 2011
Издательство: Pleiades Publishing, Inc.
Местоположение издательства: New York, USA
Первая страница: 246
Последняя страница: 258
DOI: 10.1134/S1069351311020042
Аннотация: The series of observations conducted at the Baksan and Protvino deformation stations in the Northern Caucasus and the Central Russian Plain, respectively, and the length-of-day (LOD) data describing the variable rate of the Earth’s rotation are used to study the relation between the deformation processes in the lithosphere and the global geodynamics of the Earth over short time intervals. The methods applied are based on high-resolution spectral analysis, analysis of the coherence of the studied processes, and correlation analysis. A significant (95%) correlation is revealed between the local deformation fields at two remote observation stations, which proves the existence of a global component in the Earth’s deformation field that manifests itself at characteristic time intervals of up to 3–4 weeks. At the same level of significance, the correlation between the local deformation fields and variations in the rate of the Earth’s rotation has also been identified. It is shown that the found correlations in the tidal low-frequency range are caused by the direct impact of the long-period tidal loading (Mf and Mtm waves) on the lithosphere and the length-of-the-day (LOD). The global mechanisms giving rise to the correlation of these processes in the nontidal range require further study.
Добавил в систему: Миронов Алексей Павлович

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Deformation Processes in the Lithosphere Related to the Nonuniformity of the Earth’s Rotationстатья

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