Appendix

The discharge time series for the all forecasting days (1st, 3rd, 5th, 10th 15th) are plotted and shown here in Figs.A1, A2, A3 and A4. Figs. A1 and A2 represents the change in runoff for all forecasting days during EnKFsfc run for normal streamflow and log transformed streamflow respectively. Figs. A3and A4 represents the change in runoff for all forecasting days during EnKFefc run for streamflow and log transformed streamflow respectively.

These log transformed streamflow hydrographs are given to clearly observe the model performance during low flows for all forecasting days in different model runs.

Fig. A1: Comparison of SWAT model performance for changes in runoff for all forecasting days during EnKFsfc run.

Fig. A2: Comparison of SWAT model performance for changes in log transformed runoff for all forecasting days during EnKFsfc run.

Fig. A3: Comparison of SWAT model performance for changes in runoff for all forecasting days during EnKFefc run.

Fig. A4: Comparison of SWAT model performance for changes in log transformed runoff for all forecasting days during EnKFefc run.