 |
| Titel |
The use of historical data for the characterisation of multiple damaging hydrogeological events |
| VerfasserIn |
O. Petrucci, M. Polemio |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 3, no. 1/2 ; Nr. 3, no. 1/2, S.17-30 |
| Datensatznummer |
250000661
|
| Publikation (Nr.) |
 copernicus.org/nhess-3-17-2003.pdf |
|
|
|
|
|
| Zusammenfassung |
| Landslides, floods
and secondary floods (hereinafter called phenomena) triggered by rainfall
and causing extensive damage are reviewed in this paper. Damaging
Hydrogeological Events (DHEs) are defined as the occurrence of one or more
simultaneous aforementioned phenomena. A method for the characterisation
of DHEs based upon historic data is proposed. The method is aimed at
assessing DHE-related hazard in terms of recurrence, severity, damage, and
extent of the affected area. Using GIS, the DHEs historical and climatic
data collection, the geomorphological and hydrogeological characterisation
of the hit areas, the characterisation of induced damage, the evaluation
of triggering rainfall return period and critical duration of each DHE
were carried out.
The approach was applied to a test site in Southern
Italy (Calabria) for validation purposes. A database was set up including
data from 24 events which have occurred during an 80-year period. The
spatial distribution of phenomena was analysed together with the return
period of cumulative rainfall. The trend of the occurred phenomena was
also compared with the climatic trend. Four main types of Damaging
Hydrogeological Events were identified in the study area. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|