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Study on the Terrestrial LiDAR Topographic Data Construction for Mountainous Disaster Hazard Analysis
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 Title & Authors
Study on the Terrestrial LiDAR Topographic Data Construction for Mountainous Disaster Hazard Analysis
Jun, Kye Won; Oh, Chae Yeon;
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 Abstract
Mountainous disasters such as landslides and debris flow are difficult to forecast. Debris flow in particular often flows along the valley until it reaches the road or residential area, causing casualties and huge damages. In this study, the researchers selected Seoraksan National Park area located at Inje County (Inje-gun), Gangwon Province-where many mountainous disasters occur due to localized torrential downpours-for the damage reduction and cause analysis of the area experiencing frequent mountainous disasters every year. Then, the researchers conducted the field study and constructed geospatial information data by GIS method to analyze the characteristics of the disaster-occurring area. Also, to extract more precise geographic parameters, the researchers scanned debris flow triggering area through terrestrial LiDAR and constructed 3D geographical data. LiDAR geographical data was then compared with the existing numerical map to evaluate its precision and made the comparative analysis with the geographic data before and after the disaster occurrence. In the future, it will be utilized as basic data for risk analysis of mountainous disaster or disaster reduction measures through a fine-grid topographical map.
 Keywords
landslide;debris flow;mountainous disaster;seorak national park;LiDAR;GIS;
 Language
Korean
 Cited by
 References
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