Spatio-temporal cluster analysis of recent Italian landslides

Détails

ID Serval
serval:BIB_0F876F3E207F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Spatio-temporal cluster analysis of recent Italian landslides
Périodique
Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards
Auteur⸱e⸱s
Tonini M., Pecoraro G., Romailler K., Calvello M.
ISSN
1749-9518
1749-9526
Statut éditorial
Publié
Date de publication
22/12/2020
Peer-reviewed
Oui
Volume
16
Pages
1-19
Langue
anglais
Résumé
The present study addresses the pattern distribution of recent landslides in Italy. The main objective is the detection and mapping of spatio-temporal clusters of landslides that occurred in the period 2010–2017 in the country. To this aim, a subdivision of the national area into 158 warning zones, as identified by the 21 civil protection regional centres to deal with weather-induced hydro-geological hazards, is adopted. Information on landslides comes from FraneItalia, a geo-referenced catalogue developed consulting online news sources. Analyses are performed both at national scale and at a regional scale, focusing on the Campania region. The space–time permutation scan statistics model is applied to detect statistically significant clustering, accounting for the geographical spatial dimension and for the temporal dimension. Two types of analyses are performed: annual, considering each single year; and multi-annual, encompassing the entire 8-year study period. In both cases, spatio-temporal cluster analyses are able to detect areas and frame-periods characterised by relevant and recurrent landslide activity. Finally, the obtained results are compared with a standard landslide density map, highlighting the complementarity of the two approaches.
Mots-clé
FraneItalia, landslides, scan statistics, clusters, landslide recurrence
Création de la notice
05/01/2021 12:38
Dernière modification de la notice
03/02/2023 8:01
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