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Landslide vulnerability assessment and zonation through ranking of causative parameters based on landslide density-derived statistical indicators / L. Sharma in Geocarto international, vol 26 n° 6 (October 2011)  

Public [article]  inGeocarto international > vol 26 n° 6 (October 2011) . - pp 491 - 504 Titre : Landslide vulnerability assessment and zonation through ranking of causative parameters based on landslide density-derived statistical indicators Type de document : Article/Communication Auteurs : L. Sharma, Auteur ; N. Patel, Auteur ; M. Ghose, Auteur ; P. Debnath, Auteur Année de publication : 2011 Article en page(s) : pp 491 - 504 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] données statistiques [Termes IGN] effondrement de terrain [Termes IGN] indice de risque [Termes IGN] risque naturel [Termes IGN] système d'information géographique [Termes IGN] vulnérabilité [Termes IGN] zone à risque Résumé : (Auteur) The research presented in this article is based on a new technique governed by three different statistical indicators determined for each causative parameter, viz. highest density, average density and coefficient of variation of landslides. Each of these indicators was assigned a rank value between 1 and 14 depending upon its variation among the 14 causative parameters. The aggregate of the three types of rank values estimate the total ranking value (TRV) for each causative parameter. The study area is divided into 78,256 spatial units and for each such spatial unit, the influence of the different causative parameters is determined as the product of the experts' weight of the associated sub-category and the TRV of the causative parameter that categorizes the study area into various zones. The efficacy of the proposed technique is demonstrated by the occurrence of significantly high prediction accuracy of 84%. Numéro de notice : A2011-403 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2011.598951 Date de publication en ligne : 01/08/2011 En ligne : https://doi.org/10.1080/10106049.2011.598951 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78076 [article]

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