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dc.contributor.authorSchilirò, Luca
dc.contributor.authorCepeda Rivera, Jose Mauricio
dc.contributor.authorDevoli, Graziella
dc.contributor.authorPiciullo, Luca
dc.date.accessioned2021-10-12T08:29:10Z
dc.date.available2021-10-12T08:29:10Z
dc.date.created2021-01-21T10:29:21Z
dc.date.issued2021
dc.identifier.citationGeosciences. 2021, 11 (1), .
dc.identifier.issn2076-3263
dc.identifier.urihttps://hdl.handle.net/11250/2789183
dc.description.abstractIn Norway, shallow landslides are generally triggered by intense rainfall and/or snowmelt events. However, the interaction of hydrometeorological processes (e.g., precipitation and snowmelt) acting at different time scales, and the local variations of the terrain conditions (e.g., thickness of the surficial cover) are complex and often unknown. With the aim of better defining the triggering conditions of shallow landslides at a regional scale we used the physically based model TRIGRS (Transient Rainfall Infiltration and Grid-based Regional Slope stability) in an area located in upper Gudbrandsdalen valley in South-Eastern Norway. We performed numerical simulations to reconstruct two scenarios that triggered many landslides in the study area on 10 June 2011 and 22 May 2013. A large part of the work was dedicated to the parameterization of the numerical model. The initial soil-hydraulic conditions and the spatial variation of the surficial cover thickness have been evaluated applying different methods. To fully evaluate the accuracy of the model, ROC (Receiver Operating Characteristic) curves have been obtained comparing the safety factor maps with the source areas in the two periods of analysis. The results of the numerical simulations show the high susceptibility of the study area to the occurrence of shallow landslides and emphasize the importance of a proper model calibration for improving the reliability
dc.language.isoeng
dc.titleRegional Analyses of Rainfall-Induced Landslide Initiation in Upper Gudbrandsdalen (South-Eastern Norway) Using TRIGRS Model
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
dc.source.pagenumber15
dc.source.volume11
dc.source.journalGeosciences
dc.source.issue1
dc.identifier.doi10.3390/geosciences11010035
dc.identifier.cristin1876312
dc.relation.projectNorges forskningsråd: 237859
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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