3.2. Water quality modeling
In this study, the WASP modeling was performed for time-variable
river water quality simulation. Table 5 shows the parameters
and input values used in the WASP modeling. Figs. 6–8 present the
comparisons of observed BOD, NH3–N, and DO data and time-variable
simulated results at different water sampling stations in 2011.
The WASP modeling performed a good match compared to the observed
data. Results suggest that the monthly BOD and NH3–N loadings
were affected by the flows and agricultural activities.