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| Titel |
Enhanced Monte Carlo Singular System Analysis and detection of period 7.8 years oscillatory modes in the monthly NAO index and temperature records |
| VerfasserIn |
M. Paluš, D. Novotná |
| 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 ; 11, no. 5/6 ; Nr. 11, no. 5/6 (2004-12-21), S.721-729 |
| Datensatznummer |
250009000
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| Publikation (Nr.) |
 copernicus.org/npg-11-721-2004.pdf |
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| Zusammenfassung |
| An extension of the Monte Carlo Singular System
Analysis (MC SSA) is described, based on
evaluating and testing regularity of dynamics
of the SSA modes
against the colored noise null hypothesis, in addition to the test based
on variance (eigenvalues). The application of the regularity index,
computed from a coarse-grained estimation of mutual information,
enhances the test sensitivity and
reliability in detection of relatively more
regular dynamical modes than those obtained by decomposition
of colored noises,
in particular, in detection of irregular oscillations
embedded in red noise.
This enhanced MC SSA is successfully applied
in detection of period 7.8 years oscillatory modes in
records of monthly
average near-surface air temperature from several European
locations, as well as in the monthly North Atlantic Oscillation
index. |
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