Regional climate models and bias correction methods for rainfall-runoff modeling in Katar watershed, Ethiopia

Environmental Systems Research

Table 7 Annual rainfall comparison of observed, three RCM outputs, and five BCMs

RCM	BCMs	Mean (mm)	SD (mm)	CV (–)	\({P}_{BIAS}\) (%)	RMSE (mm/year)	MAE (mm/year)	R² (–)
GERICS- MPI	Obser	864.62	69.26	8.01	–	–	–	–
	SIM	929.19	84.51	9.10	7.50	94.10	81.20	0.35
	LS	864.66	61.34	7.09	0.00	40.40	31.09	0.59
	LOCI	864.65	61.35	7.10	0.00	40.20	31.02	0.57
	PT	864.18	65.58	7.59	0.00	45.90	34.01	0.70
	DM	863.45	64.84	7.51	− 0.10	52.10	40.16	0.58
	ECDF	864.26	71.02	8.22	0.00	38.32	29.50	0.85
RAC4-NOAA-2G	Obser	864.62	69.26	8.01	–	–	–	–
	SIM	964.46	83.86	8.70	11.55	131.8	112.00	0.30
	LS	864.64	72.26	8.36	0.00	40.84	30.43	0.66
	LOCI	864.63	83.31	9.63	0.00	50.11	37.30	0.61
	PT	864.59	70.54	8.16	0.00	51.22	40.30	0.63
	DM	847.15	73.53	8.68	− 2.20	51.12	44.05	0.58
	ECDF	864.4	68.79	7.96	0.00	32.87	26.67	0.76
CCLM4- NCCR-AFR-22	Obser	864.62	69.26	8.01	–	–	–	–
	SIM	929.74	116.42	12.52	7.53	139.3	118.8	0.30
	LS	864.7	72.19	8.35	0.01	51.78	40.83	0.54
	LOCI	864.23	75.16	8.70	− 0.05	55.00	42.32	0.53
	PT	864.69	64.21	7.43	0.01	46.56	35.57	0.66
	DM	856.14	46.45	5.43	− 0.98	54.05	38.26	0.58
	ECDF	864.69	67.51	7.81	0.01	37.12	29.31	0.75