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 |