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| Titel |
Atmospheric teleconnection patterns and eddy kinetic energy content: wavelet analysis |
| VerfasserIn |
V. N. Khokhlov, A. V. Glushkov, I. A. Tsenenko |
| 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. 3 ; Nr. 11, no. 3 (2004-06-18), S.295-301 |
| Datensatznummer |
250009234
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| Publikation (Nr.) |
 copernicus.org/npg-11-295-2004.pdf |
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| Zusammenfassung |
| In this paper, we employ a non-decimated wavelet decomposition to analyse
long-term variations of the teleconnection pattern monthly indices (the
North Atlantic Oscillation and the Southern Oscillation) and the
relationship of these variations with eddy kinetic energy contents
(KE) in the atmosphere of mid-latitudes and tropics. Major advantage of
using this tool is to isolate short- and long-term components of
fluctuations. Such analysis allows revealing basic periodic behaviours for
the North Atlantic Oscillations (NAO) indices such as the 4-8-year and the
natural change of dominant phase. The main results can be posed as follows.
First, if the phases of North Atlantic and Southern Oscillations vary
synchronously with the 4-8-year period then the relationship between the
variations of the NAO indices and the KE contents is the most
appreciable. Second, if the NAO phase tends to abrupt changes then the
impact of these variations on the eddy kinetic energy contents in both
mid-latitudes and tropics is more significant than for the durational
dominance of certain phase. |
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