Mapping of Landslide Susceptibility Using Analytical Hierarchy Process in Sukamaju Area, Tenggarong Seberang, Regency of Kutai Kartanegara

International Conference on Geoscience

Syam, M.A.^1 ; Heryanto^1 ; Balfas, M.D.^1

Mulawarman University, Kuaro Street, Gn. Kelua, Samarinda

75119, Indonesia^1

关键词: AHP method;    Analytical Hierarchy Process;    Landslide susceptibility;    Landslide susceptibility mapping;    Normalized difference vegetation index datum;    Qualitative assessments;    Spatial analysis;    Topographic wetness index;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/279/1/012002/pdf
DOI  :  10.1088/1755-1315/279/1/012002

来源: IOP

【 摘 要 】

A landslides susceptibility mapping produced as a mitigation effort to reduce risk of landslide. Landslide susceptibility mapping aims to identify most susceptible area to landslide. Analytical Hierarchy Process (AHP) is quantitative method based on qualitative assessment to certain phenomena. This method was applied in Sukamaju area, Tenggarong Seberang, regency of Kutai Kartanegara to determine the weights of each data influencing landslise occured. Data were used to map susceptibility of landslide in study area are relief and slope data, detail geological and geomorphological map, topographic wetness index (TWI), and Normalized Difference Vegetation Index (NDVI) data. The data then were analyzed spatially using overlay function in ArcGIS 10.5 to produce susceptible area to landslide. Susceptibility of landslide in the study area consist of four classes, they are low, moderate, high, and very high. Generally, in the study area dominated by moderately susceptible to landslide by percentage of area 61.68%, low susceptibility about 28.28%, high susceptibility about 9.22%, and very high susceptibility about 0.92%. Very high susceptibility area is located in the eastern part of study area, geologically covered by sandstone form Pamaluan formation and denudational morphology.