A GENERIC FRAMEWORK FOR ASSESSING URBAN FLOODING UNDER CLIMATE CHANGE IN VIET NAM: SYNTHESIZING KEY RESULTS FROM HA TINH, NINH THUAN AND BINH THUAN PROVINCES

  • Huynh Thi Lan Huong, Koos Neefjes, Nguyen Xuan Hien, Tran Van Tra, Dang Linh Chi, Duong Hong Nhung

Tóm tắt

Viet Nam is among the nations most severely affected by climate change. In a recent effort to respond to the adverse effects of climate change on urban flooding, the Technical Support Unit (TSU), ENABLE-Belgian Development Agency, the Viet Nam Institute of Meteorology, Hydrology and Climate Change, and other institutes have studied the impacts of climate change on urban flooding in the provinces of Ha Tinh, Ninh Thuan, and Binh Thuan. Through different studies, climate change impacts on urban flooding have been determined. These three studies provide a generic framework to determine climate change impacts on urban flooding. Firstly downscaling of climate change scenarios is used to determine climate variables within each region. Hydrological and hydraulics models are then utilize to drive the simulation of the rainfall-runoff process as well as the response of water level during flood events. Based on the modelling, structural and non-structural measures are proposed to reduce the impacts of flooding. In an additional effort, flood warning systems would also be installed to provide timely warning to the authorities as well as the people. The generic framework has been agreed through consultation workshops as well as training workshops from August 2018 to March 2019.

 

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2021-06-03