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Table 4

Comparison of the SWAT daily simulation results for Manafwa catchment before bias correction

	Evaluation criteria	Gauged data	CFSR	TRMM	MERRA-2
Calibration period (2003–2007)	NSE	0.67	0.53	0.44	0.57
	R²	0.77	0.61	0.51	0.60
	PBIAS (%)	15.19	9.40	−6.76	11.63
	p-factor	0.71	0.64	0.58	0.60
	r-factor	1.09	3.13	3.69	2.94
Validation Period (2009–2012)	NSE	0.53	0.50	0.46	0.54
	R²	0.68	0.55	0.43	0.52
	PBIAS (%)	23.4	−10.6	16.9	17.0
	p-factor	0.78	0.55	0.61	0.65
	r-factor	1.72	2.5	3.54	1.99

	Evaluation criteria	Gauged data	CFSR	TRMM	MERRA-2
Calibration period (2003–2007)	NSE	0.67	0.53	0.44	0.57
	R²	0.77	0.61	0.51	0.60
	PBIAS (%)	15.19	9.40	−6.76	11.63
	p-factor	0.71	0.64	0.58	0.60
	r-factor	1.09	3.13	3.69	2.94
Validation Period (2009–2012)	NSE	0.53	0.50	0.46	0.54
	R²	0.68	0.55	0.43	0.52
	PBIAS (%)	23.4	−10.6	16.9	17.0
	p-factor	0.78	0.55	0.61	0.65
	r-factor	1.72	2.5	3.54	1.99