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Table 2

General reported ratings for NSE, PBIAS and RSR for calibration and validation process (Moriasi et al. 2007)

Performance Rating	NSE	RSR	PBIAS
Very good	0.75 < NSE ≤ 1.00	0.00 ≤ RSR ≤ 0.50	PBIAS < ±10
Good	0.65 < NSE ≤ 0.75	0.50 < RSR ≤ 0.60	±10 ≤ PBIAS< ±15
Satisfactory	0.50 < NSE ≤ 0.65	0.60 < RSR ≤ 0.70	±15 ≤ PBIAS < ±25
Unsatisfactory	NSE ≤ 0.50	RSR > 0.70	PBIAS ≥ ±25

Performance Rating	NSE	RSR	PBIAS
Very good	0.75 < NSE ≤ 1.00	0.00 ≤ RSR ≤ 0.50	PBIAS < ±10
Good	0.65 < NSE ≤ 0.75	0.50 < RSR ≤ 0.60	±10 ≤ PBIAS< ±15
Satisfactory	0.50 < NSE ≤ 0.65	0.60 < RSR ≤ 0.70	±15 ≤ PBIAS < ±25
Unsatisfactory	NSE ≤ 0.50	RSR > 0.70	PBIAS ≥ ±25