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STUDY OF THE MULTIFRACTALITY OF GEOMAGNETIC VARIATIONS AT THE BELSK OBSERVATORY
- Authors: Riabova S.A.1,2
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Affiliations:
- Schmidt United Institute of Physics of the Earth of the Russian Academy of Sciences
- Sadovsky Institute of Geosphere Dynamics of Russian Academy of Sciences
- Issue: Vol 508, No 1 (2023)
- Pages: 93-97
- Section: GEOPHYSICS
- Submitted: 30.01.2025
- Published: 01.01.2023
- URL: https://permmedjournal.ru/2686-7397/article/view/649749
- DOI: https://doi.org/10.31857/S2686739722601892
- EDN: https://elibrary.ru/GGKHVH
- ID: 649749
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Abstract
The study of the dynamics of periodic variations with periods from 1 to 27 days using the wavelet transform and scaling analysis by the method of maxima of the modules of the wavelet transform coefficients is carried out using the results of instrumental observations of the geomagnetic field performed at the Belsk Central Geophysical Observatory in 2008 and 2018 (low solar activity) and in 2014 (high solar activity). A change in the intensity of periodic variations is established. Close to monofractal nature of diurnal geomagnetic variations is shown. The 27-day variation and its harmonics have a higher degree of multifractality during solar activity maximum compared to solar activity minimum.
About the authors
S. A. Riabova
Schmidt United Institute of Physics of the Earth of the Russian Academy of Sciences; Sadovsky Institute of Geosphere Dynamics of Russian Academy of Sciences
Author for correspondence.
Email: riabovasa@mail.ru
Russian, Moscow; Russian, Moscow
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