Research Article

Improving the Distributed Hydrological Model Performance in Upper Huai River Basin: Using Streamflow Observations to Update the Basin States via the Ensemble Kalman Filter

Figure 4

The NER (18) of the estimated streamflow for all subbasin outlets obtained by assimilating the streamflow observations at five interior gauges (DPL, CTG, ZGF, XX, and HC). The NER value at the subbasin outlet is displayed on the subbasin where it is located.