Water resources system study using mathematical modeling for flood and drought problems reduction

Abstract

Two case studies are proposed for water resources system study using mathematical modeling for flood and draught problems reduction. The first one is the Chi basin, while the second case is the Chao Phraya-Meklong basin. The mathematical models which had been developed, namely: The effective rainfall model and irrigation demand model for rice and other crops growing. Model for calculation of on farm water requirement. Some field data had been collected for model calibration. But more field data collection are still needed for model calibration. The forecast of weekly water scheduling model is still lack of implementation in large river basin. The models to be developed are: the model to forecast the inflow into the reservoir and the model to forecast side flow or uncontrol flow in the river system. If more field data are monitored for model calibration, the forecast of weekly water scheduling model together with irrigation demand model and the new development models can be implemented in large river basins. It is believed that flood and drought problems in these river basins can be managed.