Preliminary study on Coupling numerical model of hydrology and hydrodynamics for The Typical Area of Pearl River Delta

Abstract

The implementation of the national strategy of Guangdong, Hong Kong and Macao Great Bay Area has put forward higher requirements for flood control and security in the Pearl River Delta. In this paper, region protected by Zhongshan and Zhuhai dike, which is the Qianshan River Basin, is selected as the typical area of Pearl River Delta. The flood control security of this regional is affected by flood upstream, local rainstorm and tidal level downstream. For this region, a coupled hydrological and hydrodynamic model is built and the model parameters are calibrated by measured data in June 2008 and verified by measured data in July 2012. The calculated results match well with measured data and meet the precision requirement. This research established foundation to study flood control and security in Guangdong, Hong Kong and Macao Great Bay Area.