NDLI: Wavelet analysis of geomagnetic field data

Content Provider	Springer Nature Link
Author	Mandrikova, O. V. Bogdav, V. V. Solov’ev, I. S.
Copyright Year	2013
Abstract	Variations in geomagnetic field data at different spectral frequencies and with different periods are observed during increased geomagnetic activity. The formed local structures depend on the field disturbance and contain information on the magnetic storm intensity and character of development. Numerical solutions and algorithms based on wavelet transforms, which make it possible to “automatically” detect periods of increased geomagnetic activity and identify and analyze the structures forming this process, have been proposed in order to study the time characteristics of geomagnetic field variations, using the H component as an example. The separated components, characterizing disturbances, make it possible to estimate variations in the field energy characteristics. An analysis of the constructed wavelet images makes it possible to trace the dynamics of variations in the H component the day before and during a magnetic storm.
Starting Page	268
Ending Page	273
Page Count	6
File Format	PDF
ISSN	00167932
Journal	Geomagnetism and Aeronomy
Volume Number	53
Issue Number	2
e-ISSN	1555645X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2013-03-26
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geophysics Space and Planetary Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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Wavelet analysis of geomagnetic field data