TY - JOUR
T1 - An optimal scenario for the emergency solution to protect Hanoi Capital from the Red River floodwater using Van Coc Lake
AU - Sai, Hong Anh
AU - Tabata, Toshinori
AU - Hiramatsu, Kazuaki
AU - Harada, Masayoshi
AU - Luong, Ngoc Chung
N1 - Funding Information:
The authors appreciate the funding support of JSPS KAKENHI Grant Number 18H03968 and 17K15347. The authors also thank Mr. Le Viet Son of the Institute of Water Resources Planning, Ministry of Agriculture and Rural Development, Vietnam for providing the topographic data and the observed profiles in the Red River.
Funding Information:
The authors appreciate the funding support of JSPS KAKENHI Grant Number 18H03968 and 17K15347. The authors also thank Mr. Le Viet Son of the Institute of Water Resources Planning, Ministry of Agriculture and Rural Development, Vietnam for providing the topographic data and the observed profiles in the Red River.
Publisher Copyright:
© 2020 The Authors. Journal of Flood Risk Management published by Chartered Institution of Water and Environmental Management and John Wiley & Sons Ltd.
PY - 2020/12
Y1 - 2020/12
N2 - The Red River dike system was built, and an emergency solution was implemented to protect Hanoi Capital city from flood disasters. In the solution, floodwater from the Red River is discharged through the Van Coc Gate, with an overflow point into Van Coc Lake, and is drained downstream through the Day Weir. However, an optimal scenario for the operating procedure of the emergency solution, based on a comprehensive evaluation of the flood risk level from the Red River to the residential areas located outside the protected areas of the dike system, has not been adequately addressed to date. In this study, we employed the latest digital elevation map in a high spatial resolution for the first time, and a two-dimensional depth-integrated hydrodynamic model was utilised to obtain the optimal operation for the emergency solution. The optimal scenario was determined to minimise the flood risk level to the residential areas and optimise the inflow discharge at the Van Coc Gate and the overflow point, and the outflow discharge at the Day Weir for ensuring the safety of the operating system. This study lays a promising foundation for designing risk-reduction strategies in Hanoi Capital.
AB - The Red River dike system was built, and an emergency solution was implemented to protect Hanoi Capital city from flood disasters. In the solution, floodwater from the Red River is discharged through the Van Coc Gate, with an overflow point into Van Coc Lake, and is drained downstream through the Day Weir. However, an optimal scenario for the operating procedure of the emergency solution, based on a comprehensive evaluation of the flood risk level from the Red River to the residential areas located outside the protected areas of the dike system, has not been adequately addressed to date. In this study, we employed the latest digital elevation map in a high spatial resolution for the first time, and a two-dimensional depth-integrated hydrodynamic model was utilised to obtain the optimal operation for the emergency solution. The optimal scenario was determined to minimise the flood risk level to the residential areas and optimise the inflow discharge at the Van Coc Gate and the overflow point, and the outflow discharge at the Day Weir for ensuring the safety of the operating system. This study lays a promising foundation for designing risk-reduction strategies in Hanoi Capital.
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U2 - 10.1111/jfr3.12661
DO - 10.1111/jfr3.12661
M3 - Article
AN - SCOPUS:85090064613
VL - 13
JO - Journal of Flood Risk Management
JF - Journal of Flood Risk Management
SN - 1753-318X
IS - 4
M1 - e12661
ER -