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| Titel |
Multifractality and intermittency in the solar wind |
| VerfasserIn |
W. M. Macek |
| 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 ; 14, no. 6 ; Nr. 14, no. 6 (2007-11-16), S.695-700 |
| Datensatznummer |
250012305
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| Publikation (Nr.) |
 copernicus.org/npg-14-695-2007.pdf |
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| Zusammenfassung |
| Within the complex dynamics
of the solar wind's fluctuating plasma parameters,
there is a detectable, hidden order
described by a chaotic strange attractor
which has a multifractal structure.
The multifractal spectrum has been investigated
using Voyager (magnetic field) data in the outer heliosphere
and using Helios (plasma) data in the inner heliosphere.
We have also analyzed the spectrum for the solar wind attractor.
The spectrum is found to be consistent with that for the multifractal measure
of the self-similar one-scale weighted Cantor set
with two parameters describing uniform compression and
natural invariant probability measure of the attractor of the system.
In order to further quantify the multifractality,
we also consider a generalized weighted Cantor set
with two different scales describing nonuniform compression.
We investigate the resulting multifractal spectrum depending on
two scaling parameters and one probability measure parameter,
especially for asymmetric scaling.
We hope that this generalized model will also be a useful tool
for analysis of intermittent turbulence in space plasmas. |
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