Abstract
The low-lying coastal area of Korea has often been damaged by storm surge and corresponding inundation as the approach of strong typhoons repeated every year. In this study, a systematic investigation of storm surge impact to the coasts of Korea peninsula has been conducted using the unstructured grid model, FVCOM. The model was applied to simulate the storm surge and corresponding inundation. Observations of surge and inland flooding data were used to validate the model with satisfactory results. The results of inundation simulations in this study showed correspondence with not only observed inundation area but also inundation depth to prove its ability as an inundation prediction model. And virtual inundation scenarios with enhanced tidal conditions were simulated to evaluate the possible maximum storm surge and inundation height. The simulation results for these scenarios are approximately 84~134 cm sea levels rising cases compared to typhoon MAEMI(2003)`s observation of surge and inland flooding. The possible inundation height was shown up to 4m in Masan and 1~2 m in Busan, Yeosu. The product of this study could be applied to coastal inundation prediction system and hazard mapping.
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