Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloShallow landslide susceptibility assessment in granitic rocks using GIS-based statistical methods: the contribution of the weathering grade map
Anno di pubblicazione2018
Autore/iBorrelli, Luigi; Ciurleo, Mariantonetta; Gullà, Giovanni
Affiliazioni autoriNatl Res Council Italy; Univ Salerno
Autori CNR e affiliazioni
  • inglese
AbstractShallowlandslides(i.e.,slide,flow,andcomplex)arewidespreadaroundtheworld,affectingthesoilmantleandupperregolith as a result of the weathering of granitic bedrock, and periodically cause enormous social and economic damages. Shallow landslide hazards are predominantly due to the scarcity of warning signs during the pre-failure stage, high velocities reached in the postfailure phase, and an increase in mobilized volumes caused by the entrapment of material in the downhill path of the phenomena. Owing to the abovementioned aspects, susceptibility assessment of shallow landslides in weathered granitic rocks is a relevant issue for landuseplanninganddesignpurposes.Thisstudyproposesathreestepmethodologyforthesusceptibilityassessmentofthesephenomena. The methodology has been tested and validated at the 1:10,000 scaleovera30.4-km2areainsouthernItaly,whereweatheredgranitic rocks are periodically affected by shallow landslides. This methodology is divided into three successive steps: step 1 consists of database creation, with an emphasis on the weathering grade map (including five weathering classes, from class II to class VI, each one characterized by comparable mechanical behavior), and steps 2 and 3 focus respectively on susceptibility map calibration and validation through statistical analyses. The area under the ROC curve (AUC)showsvalues rangingfrom0.95instep 2 (calibration)to0.88 instep3(validation)andisatestamenttothegoodoverallpredictive accuracyofthemethodology.Theobtainedresultsdemonstrateboth the effectiveness and the consistency of the proposed methodology inperformingsusceptibilitymappingofshallowlandslidesinweathered granitic rocks, as well as the important role played by the weathering grade map.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da1143
Pagine a1144
Pagine totali2
RivistaLandslides (Berl., Print)
Attiva dal 2004
Editore: Springer - Berlin
Paese di pubblicazione: Germania
Lingua: inglese
ISSN: 1612-510X
Titolo chiave: Landslides (Berl., Print)
Titolo proprio: Landslides. (Berl., Print)
Titolo abbreviato: Landslides (Berl., Print)
Numero volume della rivista15
Fascicolo della rivista6
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000432127000007)
Parole chiaveGranitic rocks, Weathering grade map, Shallow landslides, Susceptibility, Statistical analysis, Calabria (Italy)
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Strutture CNR
  • IRPI — Istituto di ricerca per la protezione idrogeologica
Moduli/Attività/Sottoprogetti CNR
  • DTA.AD003.077.001 : Tipizzazione di eventi di dissesto idrogeologico
Progetti Europei-
Shallow landslide susceptibility assessment in granitic rocks using GIS-based statistical methods: the contribution of the weathering grade map (documento privato )
Descrizione: published version
Tipo documento: application/pdf