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Title: FINE STRUCTURE OF THE EARTH'S FUNDAMENTAL SPHEROIDAL MODE 0S2 IN GEOMAGNETIC VARIATIONS

FINE STRUCTURE OF THE EARTH'S FUNDAMENTAL SPHEROIDAL MODE 0S2 IN GEOMAGNETIC VARIATIONS
R. Svetlana;S. Alexander
1314-2704
English
18
1.1
As the initial data, we used the results of recording the Earth's magnetic field at the Geophysical observatory "Mikhnevo" of the Institute of Geospheres Dynamics (54.959?N, 37.766?E), carried out in the period 2010-2015. On the basis of the results of instrumental observations, it is shown that in the spectra of geomagnetic variations the quasiharmonic component is clearly distinguished, the frequency of which is close to the basic spheroidal mode of the Earth 0S2. In periods of 15 days after three major earthquakes, in the absence of strong magnetic disturbances, a fine structure of the 0S2 mode in the geomagnetic variations in the form of singlets is established. The established features of the spectrum of geomagnetic variations develop a new method for studying the deep structure of the Earth, the properties of internal geospheres, estimating the viscosity of the outer core of the Earth, describing the geomagnetic dynamo, developing new models of the motion of the inner core of the Earth, and the dynamics of current systems in the outer (liquid) core.
conference
18th International Multidisciplinary Scientific GeoConference SGEM 2018
18th International Multidisciplinary Scientific GeoConference SGEM 2018, 02-08 July, 2018
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
795-802
02-08 July, 2018
website
cdrom
100
Earth's free oscillations; splitting; singlet; geomagnetic field.

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