Performance Rating

RSR

NSE

PBIAS

R²

Very Good

0.00 ≤ RSR ≤ 0.50

0.75 ≤ NSE ≤ 1

PBIAS < ±10

0.86 < R² ≤ 1

Good

0.60 < RSR ≤ 0.50

0.65 < NSE ≤ 0.75

±10 ≤ PBIAS ≤ ±15

0.75 < R² ≤ 0.86

Satisfactory

0.70 < RSR ≤ 0.60

0.50 < NSE ≤ 0.65

±15 ≤ PBIAS ≤ ±25

0.65 < R² ≤ 0.75

Unsatisfactory

RSR > 0.7

NSE ≤ 0.50

PBIAS ≤ ±25

R² ≤ 0.65