Landslide Exposure Mapping Using GIS Utilization

Abstract

There are various methods that had been implemented by many researchers in the previous studies regarding to the monitoring of landslides. At present, is it possible to predict the location of potential landslide occurrence. However, there limitations and constraints in methods that are being implemented and consequently better methods are necessary to improve the monitoring of landslides. Most of the methods discussed cannot be implemented in areas that are inaccessible and dangerous taking as example steep slopes nearby a highway. In addition, monitoring of slopes using existing methods require extensive manpower in the study area, the period of time to obtain complete information is quite long and the total budget is high. Therefore, in order to effectively address the concerns mentioned above, this research study proposes a novel method of monitoring landslides by Close Range Photogrammetry (CRP) as a platform for collecting data especially in areas that are not accessible. Finally, the slope profile depicting soil displacement and physical changes is extracted and analyzed using the DEM covering the potential landslide area. The information is obtained through accurate assessment and used to create a 3D model which would be used for monitoring technique applications. The landslide can be detected by calculation of two different epoch data achieved from Digital Elevation Model (DEM) generation. The paper focuses on observations of the studied area based on DEM area and volume generated from 3D surface analysis.