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| Titel |
Nonlinear analysis of magnetospheric data Part II. Dynamical characteristics of the AE index time series and comparison with nonlinear surrogate data |
| VerfasserIn |
G. P. Pavlos, D. Kugiumtzis, M. A. Athanasiu, N. Hatzigeorgiu, D. Diamantidis, E. T. Sarris |
| 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 ; 6, no. 2 ; Nr. 6, no. 2, S.79-98 |
| Datensatznummer |
250003393
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| Publikation (Nr.) |
 copernicus.org/npg-6-79-1999.pdf |
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| Zusammenfassung |
| In this study we have used dynamical characteristies such as
Lyapunov exponents, nonlinear dynamic models and mutual information for the nonlinear
analysis of the magnetospheric AE index time series. Similarly with the geometrical
characteristic studied in Pavlos et al. (1999b), we have found significant differences
between the original time series and its surrogate data. These results also suggest the
rejection of the null hypothesis that the AE index belongs to the family of stochastic
linear signals undergoing a static nonlinear distortion. Finally, we believe that these
results support the hypothesis of nonlinearity and chaos for the magnetospheric dynamics. |
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