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http://dx.doi.org/10.21729/ksds.2019.12.3.1

Simulation of the Debris Flow Diffusion in the Mountainous Watershed Using 3D Terrain Data  

Oh, Chae-Yeon (Graduate School of Disaster Prevention, Kangwon National University)
Jun, Kye-Won (Graduate School of Disaster Prevention, Kangwon National University)
Publication Information
Journal of Korean Society of Disaster and Security / v.12, no.3, 2019 , pp. 1-11 More about this Journal
Abstract
This study selected the national park area of Mt. Seorak in Inje-gun, Gangwon-do, where a lot of debris flow occurred due to the heavy rainfall and conducted a field survey. In addition, topographic spatial data were constructed using the GIS technique to analyze watershed characteristics. For the construction of terrain data after the disaster, the debris flow occurrence section was scanned and the 3D topographic data was constructed using the terrestrial LiDAR. LiDAR terrain data are compared to digital maps(before disaster) to assess precision and topographic data before and after the disaster were compared and analyzed. Debris flow diffusion area was calculated using FLO-2D model and compared debris flow occurred section.
Keywords
Heavy rainfall; Debris flow; Terrestrial LiDAR; FLO-2D model;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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