GIS Supported Landslide Susceptibility Modeling at Regional Scale: An Expert-Based Fuzzy Weighting Method

ISPRS International Journal of Geo-Information

Christos Chalkias¹  Christos Polykretis¹  Maria Ferentinou² 

[1] Department of Geography, Harokopio University, El. Venizelou 70, Athens 17671,Greece;Department of Geological Sciences, University of KwaZulu-Natal, Westville, Private Bag X54001, South Africa;

关键词: landslide susceptibility modeling;    expert-based fuzzy weighting;    GIS;    Peloponnese;    Greece;   

DOI  :  10.3390/ijgi3020523

来源: DOAJ

【 摘 要 】

The main aim of this paper is landslide susceptibility assessment using fuzzy expert-based modeling. Factors that influence landslide occurrence, such as elevation, slope, aspect, lithology, land cover, precipitation and seismicity were considered.Expert-based fuzzy weighting (EFW) approach was used to combine these factors for landslide susceptibility mapping (Peloponnese,Greece). This method produced a landslide susceptibility map of the investigated area. The landslides under investigation have more or less same characteristics: lateral based and downslope shallow movement of soils or rocks. The validation of the model reveals, that predicted susceptibility levels are found to be in good agreement with the past landslide occurrences. Hence, the obtained landslide susceptibility map could be acceptable, for landslide hazard prevention and mitigation at regional scale.

【 授权许可】

Unknown