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| Titel |
A proposal for a methodological approach to the characterisation of Widespread Landslide Events: an application to Southern Italy |
| VerfasserIn |
G. Gullà, T. Caloiero, R. Coscarelli, O. Petrucci |
| 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. 1 ; Nr. 12, no. 1 (2012-01-17), S.165-173 |
| Datensatznummer |
250010414
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| Publikation (Nr.) |
 copernicus.org/nhess-12-165-2012.pdf |
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| Zusammenfassung |
This paper presents a methodological approach to both identifying and
characterising Widespread Landslide Events (WLE), defined as the occurrence
of several landslides through wide areas (thousands of square kilometres).
This approach is based on a comparative analysis of two historical
databases: a rainfall database and a landslide database, both concerning the
same period.
This methodology was tested on Calabria (Southern Italy) by analysing a
period of more than 80 yr. The data allowed the individuation of 25 WLEs
generated by the following: (a) a single rainfall event (RE), (b) a few
distinct but temporarily close REs, or (c) several consecutive REs occurring
over a period of up to two months. An empirical curve, obtained by
interpolating the number of landslides occurred during the WLEs and the
average values of cumulative rainfall that triggered them enables the
individuation of the relationship between rainfall and number of landslides.
The proposed methodological approach can be used wherever historical series
of both rainfall and landslides are available. The results can be useful for
monitoring the development of events and for the planning of emergency
management. |
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