Manifestation of Singlets of the Basic Spheroidal Mode of the Earth 0S2 in Geomagnetic Variations
- Authors: Spivak A.A.1
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Affiliations:
- Institute of Geosphere Dynamics
- Issue: Vol 481, No 2 (2018)
- Pages: 1066-1069
- Section: Geophysics
- URL: https://journals.rcsi.science/1028-334X/article/view/193876
- DOI: https://doi.org/10.1134/S1028334X18080226
- ID: 193876
Cite item
Abstract
The results of instrumental observations have shown that the spectra of geomagnetic variations exhibit a quasi-harmonic component, the frequency of which is close to the basic spheroidal mode of the Earth 0S2. In periods 15 days long after three large earthquakes and in the absence of strong magnetic disturbances, the fine structure of this mode in geomagnetic variations is identified in the form of singlets. The frequencies of these singlets are similar to the theoretical values calculated using an ideal elastic isotropic model of the Earth of spherical symmetric form without its rotation.
About the authors
A. A. Spivak
Institute of Geosphere Dynamics
Author for correspondence.
Email: spivak@idg.chph.ras.ru
Russian Federation, Moscow, 119334