Goodness-of-Fit

NSE

PBIAS (%)

R2

Very Good (V)

0.75 < NSE ≤ 1.00

PBIAS < ±10

R2 ≥ 0.75

Good (G)

0.60 < NSE ≤ 0.75

±10 ≤ PBIAS < ±15

0.70 < R2 ≤ 0.75

Satisfactory (S)

0.50 < NSE ≤ 0.60

±15 ≤ PBIAS < ±45

0.60 < R2 ≤ 0.75

Unsatisfactory (U)

NSE ≤ 0.50

PBIAS ≥ ±45

R2 < 0.60