TY - GEN
T1 - Inland flooding responses to the inclusion of estuarine discharges in the storm surge modelling
AU - Son, Sangyoung
AU - Lee, Chilwoo
N1 - Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(2017R1D1A1B03031262) and by a grant [MOIS-DP-2015-03] through the Disaster and Safety Management Institute funded by Ministry of the Interior and Safety of Korean government.
Publisher Copyright:
Copyright © 2018 by the International Society of Offshore and Polar Engineers (ISOPE)
PY - 2018
Y1 - 2018
N2 - In this study, we conducted storm surge inundation modeling considering estuarine discharge from heavy rainfall during storm events. As the tropical cyclone involves storm surge and heavy rainfall, it causes more complex damages in low-lying coastal city with the estuarine discharge. We combined Delft-3D, hydrodynamics model with HEC-HMS, hydrology model in order to simulate storm surge inundation in low-lying coastal city during a tropical cyclone. In the coupled model, we calculated runoff caused by rainfall using HEC-HMS and utilized it as river boundary condition. Also, we considered tide motion using TPXO 7.2 model and calculated typhoon's wind field with Holland's model. As a result, during the tropical cyclone there wasn't any significant difference in sea level rise. However, the inclusion of river flow resulted in large difference with respect to inundation. In addition, we can confirm that maximum inundation depth and inundation area calculated by the model considering river flow are in more agreement with real observation. From the results, we can conclude that maximum inundation depth and inundation area due to tropical cyclone are significantly influenced by river flow in coastal cities with river inflow.
AB - In this study, we conducted storm surge inundation modeling considering estuarine discharge from heavy rainfall during storm events. As the tropical cyclone involves storm surge and heavy rainfall, it causes more complex damages in low-lying coastal city with the estuarine discharge. We combined Delft-3D, hydrodynamics model with HEC-HMS, hydrology model in order to simulate storm surge inundation in low-lying coastal city during a tropical cyclone. In the coupled model, we calculated runoff caused by rainfall using HEC-HMS and utilized it as river boundary condition. Also, we considered tide motion using TPXO 7.2 model and calculated typhoon's wind field with Holland's model. As a result, during the tropical cyclone there wasn't any significant difference in sea level rise. However, the inclusion of river flow resulted in large difference with respect to inundation. In addition, we can confirm that maximum inundation depth and inundation area calculated by the model considering river flow are in more agreement with real observation. From the results, we can conclude that maximum inundation depth and inundation area due to tropical cyclone are significantly influenced by river flow in coastal cities with river inflow.
KW - Delft-3D
KW - HEC-HMS
KW - Riverine Flow
KW - Storm Surge
UR - http://www.scopus.com/inward/record.url?scp=85053459563&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85053459563
SN - 9781880653876
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 459
EP - 464
BT - Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
PB - International Society of Offshore and Polar Engineers
T2 - 28th International Ocean and Polar Engineering Conference, ISOPE 2018
Y2 - 10 June 2018 through 15 June 2018
ER -