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| Titel |
Letter to the editor: Are the North Atlantic Oscillation and the Southern Oscillation related in any time-scale? |
| VerfasserIn |
R. García, P. Ribera, L. Gimenoo, E. Hernández |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 18, no. 2 ; Nr. 18, no. 2, S.247-251 |
| Datensatznummer |
250013913
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| Publikation (Nr.) |
 copernicus.org/angeo-18-247-2000.pdf |
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| Zusammenfassung |
The North Atlantic Oscillation (NAO) and the
Southern Oscillation (SO) are compared from the standpoint of a possible common
temporal scale of oscillation. To do this a cross-spectrum of the temporal
series of NAO and SO indices was determined, finding a significant common
oscillation of 6-8 years. To assure this finding, both series were decomposed in
their main oscillations using singular spectrum analysis (SSA). Resulting
reconstructed series of 6-8 years oscillation were then cross-correlated
without and with pre-whitened, the latter being significant. The main conclusion
is a possible relationship between a common oscillation of 6-8 years' that
represents about 20% of the SO variance and about 25% of the NAO variance.
Key words: Meteorology and atmospheric dynamics (climatology;
ocean-atmosphere interactions) |
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