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

Figure 9

Flood forecast variability expressed by coefficient of variation 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.