| Title |
Water Quality Forecasting of the River Applying Ensemble Streamflow Prediction |
| Authors |
안정민 ( Jung Min Ahn ) ; 류경식 ( Kyong Sik Ryoo ) ; 류시완 ( Si Wan Lyu ) ; 이상진 ( Sang Jin Lee ) |
| Keywords |
Ensemble Stream Prediction; ESP; Qual2E; Streamflow Synthesis and Reservoir Regulation; SSARR; System coupled operation; Water quality forecasting |
| Abstract |
Accurate predictions about the water quality of a river have great importance in identifying in-stream flow and water supply requirements and solving relevant environmental problems. In this study, the effect of water release from upstream dam on the downstream water quality has been investigated by applying a hydological model combined with QUAL2E to Geum River basin. The ESP (Ensemble Stream Prediction) method, which has been validated and verified by lots of researchers, was used to predict reservoir and tributary inflow. The input parameters for a combined model to predict both hydrological characteristics and water quality were identified and optimized. In order to verify the model performance, the simulated result at Gongju station, located at the downstream from Daecheong Dam, has been compared with measured data in 2008. As a result, it was found that the proposed model simulates well the values of BOD, T-N, and T-P with an acceptable reliability. |