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| Titel |
Asymmetric multifractal model for solar wind intermittent turbulence |
| VerfasserIn |
A. Szczepaniak, 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 ; 15, no. 4 ; Nr. 15, no. 4 (2008-07-30), S.615-620 |
| Datensatznummer |
250012714
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| Publikation (Nr.) |
 copernicus.org/npg-15-615-2008.pdf |
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| Zusammenfassung |
| We consider nonuniform energy transfer rate for
solar wind turbulence depending on the solar cycle activity.
To achieve this purpose we determine the generalized dimensions and
singularity spectra for the experimental data of the solar wind
measured in situ by Advanced Composition Explorer spacecraft
during solar maximum (2001) and minimum (2006) at 1 AU.
By determining the asymmetric singularity spectra
we confirm the multifractal nature of different states of the solar wind.
Moreover, for explanation of this asymmetry we propose
a generalization of the usual so-called p-model,
which involves eddies of different sizes for the turbulent cascade.
Naturally, this generalization takes into account two different
scaling parameters for sizes of eddies and
one probability measure parameter,
describing how the energy is transferred to smaller eddies.
We show that the proposed model properly describes
multifractality of the solar wind plasma. |
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