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| Titel |
Flash floods and debris flow in the city area of Messina, north-east part of Sicily, Italy in October 2009: the case of the Giampilieri catchment |
| VerfasserIn |
G. T. Aronica, G. Brigandí, N. Morey |
| 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 ; 12, no. 5 ; Nr. 12, no. 5 (2012-05-07), S.1295-1309 |
| Datensatznummer |
250010798
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| Publikation (Nr.) |
 copernicus.org/nhess-12-1295-2012.pdf |
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| Zusammenfassung |
| This paper concerns the analysis of the 1 October 2009 flash flood
and debris flow event caused by a very intense rainfall concentrated over
the Messina area. The storm caused severe flash floods in many villages
around the city of Messina, such as Giampilieri, Scaletta Zanclea, Altolia
Superiore and Molino, with 38 casualties and significant damages to property,
buildings, roads and bridges estimated close to 550 million Euro. The main
focus of this work is to perform a post event analysis, putting together
available meteorological and hydrological data in order to get better
insight into temporal and spatial variability of the rain storm, the soil
moisture conditions and the consequent flash flood in the Giampilieri
catchment. The event was investigated using observed data from a raingauge
network. Statistical analysis using GEV distribution was performed and
rainfall return period (storm severity) was estimated. Further, measured
rainfall data and rainfall-runoff modelling were used to estimate soil
moisture conditions, to analyse the hydrological behaviour and to
reconstruct flood hydrograph. With the help of GIS technology and
particularly spatial analysis, the volume of debris which has gone down into
the Giampilieri village was also calculated. GIS maps with landslide and
material deposit areas were produced and analysed. |
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