*Smith Leknettip¹、Sakonvan Chawchai¹、Montri Choowong¹、Daniela Mueller²、Alexander Fülling²、Frank Preusser² (1.Morphology of Earth Surface and Advanced Geohazards in Southeast Asia Center of Excellence (MESA CE), Department of Geology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand、2.Institute of Earth and Environmental Sciences, University of Freiburg, Freiburg, Germany)