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| Titel |
Scaling and singularity characteristics of solar wind and magnetospheric fluctuations |
| VerfasserIn |
Z. Vörös, D. Jankovičová, P. Kovács |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 9, no. 2 ; Nr. 9, no. 2, S.149-162 |
| Datensatznummer |
250006697
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| Publikation (Nr.) |
 copernicus.org/npg-9-149-2002.pdf |
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| Zusammenfassung |
| Preliminary results
are presented which suggest that scaling and singularity characteristics
of solar wind and ground-based magnetic fluctuations appear to be a
significant component in the solar wind-magnetosphere interaction
processes. Of key importance is the intermittence of the "magnetic
turbulence" as seen in ground-based and solar wind magnetic data. The
methods used in this paper (estimation of flatness and multifractal
spectra) are commonly used in the studies of fluid or MHD turbulence. The
results show that single observatory characteristics of magnetic
fluctuations are different from those of the multi-observatory AE-index.
In both data sets, however, the influence of the solar wind fluctuations
is recognizable. The correlation between the scaling/singularity features
of solar wind magnetic fluctuations and the corresponding geomagnetic
response is demonstrated in a number of cases. The results are also
discussed in terms of patchy reconnection processes in the magnetopause
and forced and/or self-organized criticality (F/SOC) of internal
magnetosphere dynamics. |
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