Monitoring landslides dynamics using multitemporal terrestrial laser scanning data

ABSTRACT Landslide is one of the major natural hazards. It is difficult not only to get the integrated and accurate landslide datum but also to monitor and predict the landslide. This paper pres ents a case study on the use of terrestrial laser scanner (TLS) for monitoring landslides in Jingyang, Shanxi, China. The TLS points cloud obtained in the study area is processed by existing software, and the experimental results show that TLS is an effective way in monitoring of landslides. Keywords: terrestrial laser scanner, landslide, points cloud, data processing, deformation monitoring 1. INTRODUCTION Landslides are one of the most widespread geological hazards on Earth, responsible for hundreds of deaths and billions of dollars in property damage per year. Landslides commonly occur with other natural disasters (e.g., earth-quakes, floods) and leave the landscape prone to sedimentation, erosion, and further mass wasting. Remote Sensing, Global Positioning System (GPS), and Geographic Information System s (GIS) are now mature technologies that can be used to monitor landslides and landslide-prone areas with greater accuracy than could be accomplished previously with field reconnaissance alone