| In the development of a water quality model for Big Sunflower River, the Water Quality Analysis Simulation-5 (WASP5) including the hydrodynamic program (DYNHYD5) and the water quality program (EUTRO5) was used. The model is calibrated to a set of field data acquired on Big Sunflower River, during October 19-23, 1997. Hydrodynamic data for the water quality model was generated through the application of DYNHYD5 along with HEC-2. The water quality constituents simulated by the model are carbonaceous biochemical oxygen demand, dissolved oxygen, ammonia nitrogen, nitrate nitrogen, organic nitrogen, total nitrogen, total phosphorus, and chlorophyll-a. The kinetics of major physical, chemical and biological processes which link these water quality constituents are modeled in each of the segments of a one-dimensional, vertically mixed system. Comparisons of the computed and observed data are made qualitatively by using spatial and temporal comparisons. The response of model predicted calculations is consistent with trends of the observed data ranges, but not with absolute values in all cases. |
