Research on Modeling for the Pollutant Dispersion of the Middle and Lower Reaches of the Yellow River

The unpredictable water pollution incident of the Yellow River Basin is an important part of the emergency work. Based on the Saint-venant equation set, a 1-D pollutant dispersion model is built for the middle and lower reaches of the Yellow River. It calibrates key parameters with the valley characteristics, rapidly and effectively achieves the forecasting of pollutant dispersion using implicit finite difference scheme in this paper. The model can maximize the information obtained from the available data and adapt to the fast evolution of the river bed as well as other external changes. The experimental results show that the model provides a strong support for relevant decision makers with high usability and reliability.