Landslide Susceptibility Mapping (LSM) in Kelud Volcano Using Spatial Multi-Criteria Evaluation

11th Aceh International Workshop and Expo on Sustainable Tsunami Disaster Recovery

Bachri, Syamsul^1 ; Sumarmi^1 ; Yudha Irawan, Listyo^1 ; Utaya, Sugeng^1 ; Dwitri Nurdiansyah, Farizki^1 ; Erfika Nurjanah, Alif^1 ; Wahyu Ning Tyas, Lela^1 ; Amri Adillah, Akhmad^1 ; Setia Purnama, Denny^1

Department of Geography, State University of Malang, Jl. Semarang 05, Malang

65145, Indonesia^1

关键词: Environmental characteristic;    Landslide susceptibility mapping;    Multi-criteria evaluation;    Physical environments;    Remote sensing data;    Stream power index;    Topographic positions;    Topographic wetness index;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/273/1/012014/pdf
DOI  :  10.1088/1755-1315/273/1/012014

来源: IOP

【 摘 要 】

Mount Kelud eruption on February 2014 has a tremendous impact on the surrounding physical environment which ejected more than 200x106m3 of material. Thus, triggered secondary hazard such as landslides in the surrounding area. The purpose of this study is to map landslides susceptibility using Spatial Multi-Criteria Evaluation (SMCE) approach in Kelud mountainous area in particular within KRB 1 and 2. The identification of landslide occurrence was conducted based on remote sensing data and field observation along with four considerations criteria; topography, hydrology, soil, and environmental characteristics. Each factor then reduced into several sub-criteria such as slope, aspect, topographic position index, topographic wetness index, stream power index, rainfall, soil texture, soil structure, COLE index and land use. The SMCE method was also engaged with expert judgment provided by academic university' view and the BPBD agencies. The result showed that the river channel and surrounding areas categorized as landslide high prone area. Furthermore, eruption material found as the sources of landslides occurrences.