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| Titel |
Links of the significant wave height distribution in the Mediterranean sea with the Northern Hemisphere teleconnection patterns |
| VerfasserIn |
P. Lionello, M. B. Galati |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: 9th EGU Plinius Conference on Mediterranean Storms (2007) ; Nr. 17 (2008-06-20), S.13-18 |
| Datensatznummer |
250013618
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| Publikation (Nr.) |
 copernicus.org/adgeo-17-13-2008.pdf |
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| Zusammenfassung |
This study analyzes the link between the SWH (Significant Wave Height)
distribution in the Mediterranean Sea during the second half of the 20th
century and the Northern Hemisphere SLP (Sea Level Pressure) teleconnection
patterns.
The SWH distribution is computed using the WAM (WAve Model) forced by the
surface wind fields provided by the ERA-40 reanalysis for the period
1958–2001. The time series of mid-latitude teleconnection patterns are
downloaded from the NOAA web site. This study shows that several
mid-latitude patterns are linked to the SWH field in the Mediterranean,
especially in its western part during the cold season: East Atlantic Pattern
(EA), Scandinavian Pattern (SCA), North Atlantic Oscillation (NAO), East
Atlantic/West Russia Pattern (EA/WR) and East Pacific/ North Pacific Pattern
(EP/NP). Though the East Atlantic pattern exerts the largest influence, it
is not sufficient to characterize the dominant variability. NAO, though
relevant, has an effect smaller than EA and comparable to other patterns.
Some link results from possibly spurious structures. Patterns which have a
very different global structure are associated to similar spatial features
of the wave variability in the Mediterranean Sea. These two problems are,
admittedly, shortcomings of this analysis, which shows the complexity of the
response of the Mediterranean SWH to global scale SLP teleconnection
patterns. |
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