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| Titel |
Atmospheric patterns for heavy rain events in the Balearic Islands |
| VerfasserIn |
A. Lana, J. Campins, A. Genovés, A. Jansa |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Mediterranean storms and extreme events in an era of climate change ; Nr. 12 (2007-06-28), S.27-32 |
| Datensatznummer |
250010354
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| Publikation (Nr.) |
 copernicus.org/adgeo-12-27-2007.pdf |
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| Zusammenfassung |
The Balearic Islands, as well as other Mediterranean regions, are occasionally affected
by heavy rain events, which can produce numerous damages. This study contributes to
improve the understanding of the dynamical mechanisms that produce heavy rain events
by means of a classification of their related atmospheric patterns.
Heavy rainfall dataset for the Balearic Islands and some gridded atmospheric
parameters, derived from the HIRLAM-INM-0.5° analyses, were the data used in this
study. Heavy rain events were recorded at a set of pluviometric stations along the Balearics
for a period of 9 years, from June 1995 to May 2004. The 1000 hPa and 500 hPa
geopotential heights (hereafter φ1000 and φ500),
as well as the 850 hPa temperature (T850) were the fields utilized
in the classification.
By means of a principal components analysis (PCA) the number of variables was reduced.
The cluster analysis (CA) was then applied on those new variables and eight atmospheric
patterns were finally obtained. Most of the patterns showed a strong relationship between
heavy rain events and cyclones. |
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