Other
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....4466b&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #4466
Other
Scientific paper
TIME VARIATIONS OF GEOPOTENTIAL, GRAVITY AND VERTICAL CRUSTAL DEFORMATIONS: NATURE AND UNITY OF CYCLICITIES Yu.V.Barkin Sternberg Astronomical Institute, Moscow, Russia, barkin@sai.msu.ru Gravitational action of the Moon and the Sun on the Earth generates very big additional mechanical forces and moments of the interaction of its neighboring shells (liquid core, mantle and another layers) and produces cyclic perturbations of the tensional state of the shells, their deformations, small relative translational displacements and small relative rotational oscillations of the shells, redistribution of the plastic and fluid masses and others. These additional forces and moments of the cyclic celestial-mechanical nature produce deformations of the all layers of the Earth and organize and control practically all natural processes. In given report we analyze these forces and moments caused by the Moon attraction. We have shown that they are conditionally periodic functions of time with definite basis of frequencies, which are some combinations of the frequencies of perturbations in the Moon orbital motion. Very important conclusion follows from our approach - natural processes are controlled and dictated by pointed mechanism and are subjected by cyclic variations with general for all processes base of frequencies. The fundamental basis of frequencies was established in result of theoretical study of the gravitational interaction of the Earth’s core and mantle with the Moon and the Sun and in result of analysis of observed variations of the many natural processes [1]. Predicted periods of variations of the natural processes were conformed by last results of the spectral analysis of gravity at Moscow fidicial station and by similar studies of the Earth rotation, vertical crustul deformations [2]. In particular periods, amplitudes (in a few microGal) and phases for about 20 harmonics of gravity variations were discovered in result of spectral analysis of the absolute gravimetry measurements. Interannual periods (in years): 1.03 (1.02), 1.58 (1.62), 2.49 (2.49), 6.00 (5.97), 10.7 (10.9) and short periods (in days): 7.31 (7.24), 8.40 (8.58), 12.4 (12.1), 15.7 (15.9), 16.1 (---), 40.2 (40.4), 58.4 (60.1), 62.1, 80.4 (80.4), 138.8 (140), 160.7 (161), 179.0 (183), 233.8 (---), 237.4 (237), 288.6 (285). Predicted periods of variations are pointed in parenthesis. The work was accepted and financed by RFBR grant 02-05-64176 and by grant SAB2000-0235 of Ministry of Education of Spain. Referenses. [1] Barkin Yu.V. (2002) Explanation of the endogenous activity of the planets and satellites and its cyclicity. Izvestia of RANS. Section of Earth sciences, Issue 9. Moscow, VINITI. [2] Kaftan V.I. (2002) Gravity variation at the Moscow fiducial station. EUREF Publication No. 10. Frankfurt am Main. pp. 293-296.
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