STUDY ON FORECASTING TIDAL WATER LEVELS IN THE SAI GON DONG NAI RIVER FOR ASSESSMENT OF FLOOD IMPACTS IN HO CHI MINH CITY

Tóm tắt

In recent years, due to the impact of extreme weather, the evolution of rain and tides in Ho Chi Minh City (HCMC) has many changes. Particularly, rainfall and rainfall intensity have been increasing more and more, duration of rainfall has been longer and longer, the number of some heavy rains with a volume of 50 - 100 mm has been boosted, the high tide level on the river has also multipled in rencent year. As the result, the flooding situation of the city is heavily and seriously impacted, causing inevitable damage and challenges for the socio-economic activities of city people. Therefore, research on the impact of coastal water levels on flooding in the city is very necessary. In this paper, UTide software is applied to calculate and forecast tidal water levels along the coastal areas and inland stations of the Sai Gon River, thereby assessing the impacts of flooding due to high tides on HCMC with water level forecast results for 3 stations Nha B, Phu An and Vung Tau respectively 0.82, 0.83 and 0.97.