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| Titel |
Toward an estimation of the relationship between cyclonic structures and damages at the ground in Europe |
| VerfasserIn |
F. Porcú, A. Carrassi |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 3 ; Nr. 9, no. 3 (2009-06-04), S.823-829 |
| Datensatznummer |
250006789
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| Publikation (Nr.) |
 copernicus.org/nhess-9-823-2009.pdf |
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| Zusammenfassung |
Cyclonic systems dominate European and Mediterranean meteorology throughout
the year and often induce severe weather in terms of heavy and/or
long-lasting precipitation with related phenomena such as strong winds and
lightning. Surface cyclonic structures are often related to well defined
precipitation patterns with different scales, duration and intensity.
Cyclones confined in the upper troposphere, usually referred to as cut off
low, may induce instability at lower levels and the development of
convective precipitation.
In this work the occurrence of cyclonic events (discriminated between
surface ones and cut-off lows) is analyzed and matched with an economic
losses database to highlight a relation between the atmospheric structures
and the impact on the social environment in terms of casualties and material
damages. The study focus on the continental Europe and, based on the ERA-40
reanalysis, two databases of surface cyclones and cut-off lows have been
constructed by means of automatic pattern recognition algorithms. The impact
on the local communities is estimated from an insurance company record,
which provides the location, date and type of the events, as well as related
losses in terms of damages and casualties. Results show the relatively high
impact of cyclonic structures on human life in Europe: most of the weather
induced damages occur close to a cyclonic center, especially during warm
months. Damages and human losses are more frequent from late summer to
January, and precipitation is the most relevant meteorological damaging
feature throughout the year. |
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