Author(s): Serene Hui Xin Tay; Dieu Huong Trinh; Mengyu Wang; Vladan Babovic; Seng Keat Ooi
Linked Author(s): Seng Keat Ooi, Vladan Babovic, Mengyu Wang
Keywords: Singapore; Johor; Hydrological model; River discharge
Abstract: Since its colonial period, Singapore has been one of the busiest ports in the world. In addition to port operations, Singapore has also been expanding other industries and building facilities and infrastructure near its coast. These coastal facilities are heavily dependent on sea water for different purposes such as cooling and desalination. Therefore coastal water quality management is becoming one of Singapore’s national interests. One of the tools to help achieving this is a predictive numerical model that can provide spatial and temporal information of hydrodynamics and water quality in operational forecast mode. The hydrography of Singapore coastal waters is characterized by the narrow Johor Strait in the north separates Singapore Island from Malaysia Peninsular and the relatively wider Singapore Strait in the south links South China Sea and Indian Ocean via Malacca Strait. A well represented baroclinic flow condition with accurate vertical stratification structure is a pre-requisite to a good water quality model in Singapore coastal waters. In order to properly describe this baroclinic effect in a hydrodynamic model during operational forecast, high temporal resolution of river discharge information is vital. Therefore this paper presents a hydrological catchment model covering Singapore Island and Southern Johor State to estimate hourly river discharge into both straits of Johor and Singapore.
Year: 2018