Nghiên cứu đánh giá ảnh hưởng của sự thay đổi thảm phủ đến tình hình lũ, ngập lụt cho thành phố Cao Bằng

Abstract

In recent years, floods, flooding in Cao Bang city occurred frequently, causing great damage to people and property. There may be several causes of floods, such as unsecured flood prevention and protection systems, abnormal rains due to the impact of climate change, changing the surface of the carpet (both quantity and quality), development of infrastructure works in the basin ... and also unknown causes. Analyzing and evaluating these factors will be the basis for identifying the main causes of current and future flooding in the study areas. In this article, the research team used IFAS open distributed hydrological model to determine the flow rate as input to the combined 1-dimensional and 2-dimensional combined mathematical model MIKE FLOOD to determine the depth of inundation and flooding area for Cao Bang city corresponding to the land cover change scenario. The results from the models will be analyzed and evaluated as a scientific basis to propose response and relief plans to prevent and minimize damage caused by floods, ensuring sustainable socio-economic development and natural environment for the locality.