Analysis of global geomagnetic variability

Anh, Vo V., Yu, Zu-Guo, & Wanliss, James A. (2007) Analysis of global geomagnetic variability. Nonlinear Processes in Geophysics, 14(6), pp. 701-708.


The orthogonal field components from global INTERMAGNET magnetometer stations are studied via multifractal detrended fluctuation analysis to determine whether there are clear and consistent regional patterns in the behavior of the fluctuations. There are three distinct scaling regimes in the qth-order fluctuation function for each of the 24 stations studied covering Southwest North America, Northeast North America, Central Europe, Northern Europe, Australasia and Asia. There is a consistent break point at time scale around 23 h for all stations. The scaling exponents of the second-order fluctuation functions reflect the regional character of the stations, and can be used for station classification, and for possible regional models.

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15 citations in Scopus
15 citations in Web of Science®
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ID Code: 15056
Item Type: Journal Article
Refereed: Yes
Additional URLs:
ISSN: 1023-5809
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > STATISTICS (010400) > Stochastic Analysis and Modelling (010406)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 (The authors)
Copyright Statement: © Author(s) 2007. This work is licensed
under a Creative Commons Attribution 3.0 License -
Deposited On: 08 Oct 2008 00:00
Last Modified: 05 Mar 2015 23:57

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