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Vörös et al. 1998
Vörös, Z., Kovács, P., Juhász, Á., Körmendi, A. and Green, A.W. (1998). Scaling laws from geomagnetic time series. Geophysical Research Letters 25: doi: 10.1029/98GL01910. issn: 0094-8276.

The notion of extended self-similarity (ESS) is applied here for the X-component time series of geomagnetic field fluctuations. Plotting nth order structure functions against the fourth order structure function we show that low-frequency geomagnetic fluctuations up to the order n=10 follow the same scaling laws as MHD fluctuations in solar wind, however, for higher frequencies (f>1/5[h>) a clear departure from the expected universality is observed for n>6. ESS does not allow to make an unambiguous statement about the non triviality of scaling laws in geomagnetic turbulence. However, we suggest to use higher order moments as promising diagnostic tools for mapping the contributions of various remote magnetospheric sources to local observatory data. ¿ 1998 American Geophysical Union

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Abstract

Keywords
Magnetospheric Physics, General or miscellaneous
Journal
Geophysical Research Letters
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Publisher
American Geophysical Union
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