Debris flows are rapidly flowing masses of water mixed with soil and gravel from landslides which are caused by typhoons or rainstorms. The combination of Korea's mountain dominated topography (70%) and seasonal heavy rains and typhoons causes landslides and large-scale debris flows from June to August. These phenomena often cause property damage and casualties that amount up to 20% of total annual disaster fatalities. The key point to predicting debris flow is to understand its movement mechanism, erosion, and deposition. In order to achieve a more accurate estimation of debris flow path and damage, this study incorporates quantitative analysis of high resolution LiDAR DEM (GSD 10cm) to delineate geomorphic and topographic changes induced by Jinbu real scale debris flow test. 2) Department of Civil Engineering, Gangneung-Wonju National University (E-mail: swl@gwnu.ac.kr) 3) Department of Civil Engineering, Gangneung-Wonju National University (E-mail: paik@gwnu.ac.kr) 4) Department of Civil Engineering, Gangneung-Wonju National University (E-mail: yune@gwnu.ac.kr) 5) Corresponding Author, Member, Department of Civil Engineering, Gangneung-Wonju National University (E-mail: ghkim@gwnu.ac.kr) This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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