Evaluation of the consistency of landslide susceptibility mapping: a case study from the Kankai watershed in east Nepal

Prabin Kayastha, Dhital Megh Raj, Florimond De Smedt

Onderzoeksoutput: Articlepeer review

38 Citaten (Scopus)

Samenvatting

GIS-based landslide susceptibility maps for the Kankai watershed in east Nepal are developed using the frequency ratio method and the multiple linear regression technique. The maps are derived from comparing observed landslides with possible causative factors: slope angle, slope aspect, slope curvature, relative relief, distance from drainage, land use, geology, distance from faults and mean annual rainfall. The consistency of the maps is evaluated using landslide density analysis, success rate analysis and spatially agreed area approach. The first two analyses produce almost identical quantitative results, whereas the last approach is able to reveal spatial differences between the maps and also to improve predictions in the agreed high landslide-susceptible area.
Originele taal-2English
Pagina's (van-tot)785-799
TijdschriftLandslides
Volume10
Nummer van het tijdschrift6
StatusPublished - dec 2013

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