Impact Assessment of Uncertainty Propagation of Ensemble NWP Rainfall to Flood Forecasting with Catchment Scale

Figure 12

Flood forecast variability expressed by RMSE with catchment scale and characteristic. Red, blue, and gray points represent the small catchment (<200 km²), medium catchment (200~1000 km²), and large catchment (>1000 km²), respectively. And we also divided catchment characteristics into 2 types, mountainous area (>800 m, big point) and flat area (<800 m, small point) considering average elevation (800 m) of the 33 subcatchments.