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Table 3 Classification of statistical performance indices (Moriasi et al. 2007)

From: Projection of hydrological responses to changing future climate of Upper Awash Basin using QSWAT model

Performance rating

R2

NSE

RSR

PBIAS

V. Good

0.75 < R2 ≤ 1.0

0.75 < NSC ≤ 1.0

0.00 ≤ RSR ≤ 0.50

PBIAS ≤ ± 10

Good

0.60 < R2 ≤ 0.75

0.65 < NSE ≤ 0.75

0.50 ≤ RSR ≤ 0.60

± 10 ≤ PBIAS ≤ ± 15

Satisfactory

0.50 < R2 ≤ 0.60

0.50 < NSE ≤ 65

0.60 ≤ RSR ≤ 0.70

± 15 ≤ PBIAS ≤ ± 25

Unsatisfactory

R2 ≤ 0.25

NSE ≤ 0.50

RSR > 0.50

PBIAS ≥ ± 25