GIS Based Determination of Landslide Location

This paper discusses about the Landslide Hazard Assessment (LHA) conducted on Cameron Highlands for October 2013. This site is identified as one of the very susceptible to landslides. In tropical countries such as Malaysia, rainfall is considered as the triggering factor of a landslide. Therefore, the information was obtained from rainfall station gauges to be used in Geographical Information System (GIS) by Kriging interpolation method. The variables including slope, slope aspect, curvature, land use land cover (LULC), elevation, distance from road, distance from river/lake and distance from lineament were used in the GIS system. The system managed to identify few areas that are highly susceptible to landslide using rainfall data on 23rd October 2013. However, it did not manage to identify the area that had mudflow reported on that day with the Landslide Hazard Zonation (LHZ) map produced. This paper provides recommendations to be done in future work in order to obtain more accurate results.
Keywords: Landslide Hazard Assessment; GIS; rainfall interpolation; Cameron Highlands; weighted overlay