Development and Evaluation of a Hydrometeorological Forecasting System Using the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) Model

Table 3

Statistical indices of forecasts averaged over the entire domain.

Element	Forecast test	Observation	CC	RMSE	STD
					Forecast	Observation
Precipitation	24 h forecast	ERA5	0.28	1.24 mm/h	1.15 mm/h	0.82 mm/h
		CLDAS	0.23	1.53 mm/h	−	1.18 mm/h
	48 h forecast	ERA5	0.16	1.35 mm/h	1.25 mm/h	−
		CLDAS	0.18	1.65 mm/h	−	−
	72 h forecast	ERA5	0.12	1.34 mm/h	1.15 mm/h	−
		CLDAS	0.07	1.64 mm/h	−	−
2 m air temperature	24 h forecast	ERA5	0.62	1.02 K	1.03 K	1.20 K
		CLDAS	0.59	1.00 K	−	1.28 K
	48 h forecast	ERA5	0.56	1.06 K	0.93 K	−
		CLDAS	0.54	1.06 K	−	−
	72 h forecast	ERA5	0.49	1.11 K	0.90 K	−
		CLDAS	0.48	1.12 K	−	−

CC: correlation coefficient; ; x_mi and x_oi are the simulated and observed hourly precipitation, respectively, or 2 m air temperature in the time i; and n is the number of hours. RMSE: Root Mean Square Error; . STD: standard deviation; .