|
Titel |
Is the decadal variability in the tropical Atlantic a precursor to the NAO? |
VerfasserIn |
I. Wainer, J. Servain, G. Clauzet |
Medientyp |
Artikel
|
Sprache |
Englisch
|
ISSN |
0992-7689
|
Digitales Dokument |
URL |
Erschienen |
In: Annales Geophysicae ; 26, no. 12 ; Nr. 26, no. 12 (2008-12-12), S.4075-4080 |
Datensatznummer |
250016331
|
Publikation (Nr.) |
copernicus.org/angeo-26-4075-2008.pdf |
|
|
|
Zusammenfassung |
In the past two decades climate research in the tropical Atlantic with
respect to the inter-hemispheric gradient of sea surface temperature (SST)
emphasized the predominance of decadal-scale variability. Our results show
that this mode of variability is prevalent only for part of the last
130-years record (the 1880s, the 1920s and, especially, the 1970s). There
is a lag of a few months between the decadal variations of the
inter-hemispheric gradient of SST and the decadal variability of the North
Atlantic Oscillation (NAO). This seems to indicate that the 10-year
variability first develops in the tropics and then propagates polewards. The
inter-hemispheric gradient of SST mode should be thought as episodic and not
as a periodic oscillation. |
|
|
Teil von |
|
|
|
|
|
|