Geology and UAV-based for landslide risk area mapping of Kampung Penduk, Jeli, Kelantan

Malaysia as one of the tropical countries has frequently faced landslide hazard. One of the most frequent landslide areas of landslides occurrence in Malaysia is along Jeli-Gerik Highway. Therefore, it is important to understand the general geology surrounding the area and identify the landslide prone area to avoid or minimize the effect of landslide hazard. Kampung Penduk is a small village in Jeli district near the boundaries of Perak and Kelantan. Kampung Penduk is located alongside Jeli-Gerik Highway. The geological information specifically in the study area is insufficient because previous study around the study area only cover the lithology and structure around the study area. An updated geological map of the study area in scale 1:25,000 was produced from the geological mapping conducted. This research also present an integrated approach for mapping and analyzing spatial features of a landslide from remote sensing image and UAV technology. In order to assess the capabilities of UAV in landslide hazard mapping, digital photogrammetric products such as orthophotos, Digital Elevation Models and 3D Image based on landslide risk area along Jeli-Gerik Highway were produced. Landslide risk area map was also generated by using data such as elevation, slope angle and aspect of the landslide area which can be categorized into very low, low, moderate, high and very high. Hence, the identification of landslide-prone area is essential for carrying out quicker and safer mitigation programs. Both geological map and landslide risk area map are important for hazard management and future strategic planning to minimize the risk of landslide hazard in the study area.