Factors influencing storm surges in the West Korean Bay of the Yellow Sea: a case study of typhoon Winnie, 1997

Coastal disasters due to storms and related prevention and prediction are key issues in coastal environmental management and planning. In the present study, the coupled storm surge–tide–wave model has been used for studying the effects of several factors on the storm surges in the West Korean Bay du...

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Bibliographic Details
Published in:Journal of coastal conservation 2020-12, Vol.24 (6), p.1-11, Article 67
Main Authors: Pak, Chun-Ok, Jo, Jong-Song, Choi, Ho-Jong, Ri, Du-Yon
Format: Article
Language:English
Subjects:
Barrages
Coastal management
Coastal Sciences
Disasters
Earth and Environmental Science
Environmental management
Estuaries
Estuarine dynamics
Flood predictions
Flooding
Geography
Hurricanes
Nature Conservation
Oceanography
Remote Sensing/Photogrammetry
River discharge
River flow
River forecasting
Rivers
Stations
Storm surges
Storms
Tidal waves
Typhoons
Water discharge
Water levels
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Summary:Coastal disasters due to storms and related prevention and prediction are key issues in coastal environmental management and planning. In the present study, the coupled storm surge–tide–wave model has been used for studying the effects of several factors on the storm surges in the West Korean Bay during the 1997 Winnie. The results have shown that the coupled model is capable of predicting the total water level under storm events with reasonable accuracy. The results have also shown that the river discharge plays an important role in the storm surge development. The peak surges at stations 1 and 2 located in the river estuaries were 0.2–1.5 m larger than those at the stations 3 and 4. Especially, the peak surge at the station 3 located in the Taedong River estuary was much smaller compared to those at the stations 1 and 2, due to the control of the river discharge by barrages such as the West Sea Barrage. The peak surge at the station 1 located in the Amrok River estuary was 12% larger than that at the station 2 located in the Chongchon River estuary, due to the considerable difference in the river discharges. In summary, our results have shown that integrating the coupled storm surge–tide–wave model technology with the real-time river discharge forecast is feasible for predicting the inundation under both storm surge and riverine floods for the West Korean Bay.
ISSN:1400-0350
1874-7841
DOI:10.1007/s11852-020-00785-1