8th IGRSM International Conference and Exhibition on Geospatial & Remote Sensing | |
Mapping of post-event earthquake induced landslides in Sg. Mesilou using LiDAR | |
地球科学;计算机科学 | |
Yusoff, Habibah Hanan Mat^1 ; Razak, Khamarrul Azahari^1,2 ; Yuen, Florence^1 ; Harun, Afifi^3 ; Talib, Jasmi^4 ; Mohamad, Zakaria^5 ; Ramli, Zamri^6 ; Razab, Razain Abd^7 | |
UTM RAZAK School of Engineering and Advanced Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur | |
54100, Malaysia^1 | |
Disaster Preparedness and Prevention Center, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur | |
54100, Malaysia^2 | |
Faculty of Architecture, Planning and Surveying, Universiti Teknologi MARA, Malaysia^3 | |
Faculty of Geosciences and Petroleum Engineering, Universiti Teknologi Petronas, Malaysia^4 | |
Southeast Asia Disaster Prevention and Research Initiative (SEADPRI), Universiti Kebangsaan Malaysia, UKM Bangi, Selangor | |
43600, Malaysia^5 | |
Technical Services Section, Minerals and Geoscience Department Malaysia, Ministry of Natural Resources and Environment, Malaysia^6 | |
BUMITOUCHplmc Sdn. Bhd., Tower Block, Bangunan PERKIM Jalan Ipoh, Kuala Lumpur, Malaysia^7 | |
关键词: Active tectonics; Complementary tools; Complex environments; Earthquake-induced landslides; Hazard and risk assessments; Landslide inventories; Natural disasters; Shallow landslide; | |
Others : https://iopscience.iop.org/article/10.1088/1755-1315/37/1/012068/pdf DOI : 10.1088/1755-1315/37/1/012068 |
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学科分类:计算机科学(综合) | |
来源: IOP | |
【 摘 要 】
Earthquake is a common natural disaster in active tectonic regions. The disaster can induce cascading disasters such as debris flow, mudflow and reactivated old landslides. M 6.0 Ranau earthquake dated on June 05, 2015 coupling with intense and prolonged rainfall caused several mass movements such as debris flow, deep-seated and shallow landslides in Mesilou, Sabah. This study aims at providing a better insight into the use of advanced LiDAR mapping technology for recognizing landslide induced by earthquakes particularly in a vegetated terrain, assessing post event hazard and analyzing its distribution for hazard zonation. We developed the landslide inventory using LiDAR-derived visual analysis method and validated in the field. A landslide inventory map improved with the support of LiDAR derivative data. Finally, landslide inventory was analysed by emphasizing its distribution and density in such a way that it provides clues of risky zone as a result of debris flow. We recommend that mitigation action and risk reduction should be taken place at a transport zone of the channel compared to other zones. This study indicates that modern airborne LiDAR can be a good complementary tool for improving landslide inventory in a complex environment, and an effective tool for rapid regional hazard and risk assessment in the tropics.
【 预 览 】
Files | Size | Format | View |
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Mapping of post-event earthquake induced landslides in Sg. Mesilou using LiDAR | 3098KB | download |