DEVELOPMENT OF REAL-TIME FORECASTING SYSTEM FOR WATER QUALITY MANAGEMENT OF LAKE SHINJI

Abstract

To get useful information about the optimal operation of a water purification device, we developed a real-time water quality forecasting system for Lake Shinji. The system is mainly composed of two parts: 1) three-dimensional hydrodynamic model with aquatic ecology model (Fantom3D-AED) and 2) database system where open-source data through web servers are automatically stored. We used a small purification system called DoDAS that uses ozonation technique. After validating the model for Lake Shinji, we performed water quality simulations with DoDAS operation. The results supplied useful information about the effects of the device operation. Moreover, we added a function to forecast waves in the lake to avoid boat accident by strong winds and wave, which are not predicted by the government.