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http://dx.doi.org/10.21729/ksds.2021.14.4.9

Flood Runoff Computation for Mountainous Small Basins using WMS Model  

Chang, Hyung Joon (School of Civil Engineering, Chungbuk National University)
Lee, Jung Young (Analysis and Assessment Division, National Park Research Institute, Korea National Park Service)
Lee, Hyo Sang (School of Civil Engineering, Chungbuk National University)
Publication Information
Journal of Korean Society of Disaster and Security / v.14, no.4, 2021 , pp. 9-15 More about this Journal
Abstract
The frequency of flash floods in mountainous areas is increasing due to the abnormal weather that occurs increasingly in the recent, and it causes human and material damages is increasing. Various plans for disaster mitigation have been established, but artificial plans such as raising embankment and dredging operation are inappropriate for valleys and rivers in national parks that prioritize nature protection. In this study, flood risk assessment was conducted for Gyeryongsan National Park in Korea using the WMS (Watershed Modeling System)which is rainfall runoff model for valleys and rivers in the catchment. As the result, it was simulated that it is flooding in three sub-catchments (Jusukgol, Sutonggol, Dinghaksa) of a total in Gyeryongsan National Park when rainfall over the 50 years return period occurs, and it was confirmed that the risk of trails and facilities what visitors are using was high. The risk of trails in national parks was quantitatively presented through the results of this study, and we intend to present the safe management guidelines of national parks in the future.
Keywords
Ungauged catchments; Rainfall-runoff model; WMS; National park; Gyeryongsan;
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