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. 2023 May 13;9(5):e16290. doi: 10.1016/j.heliyon.2023.e16290

Table 3.

Forecasting performance indices of conventional rating curve.

Model NSE d KGE MAE MBE RE RMSE PCC R2
Nonlinear rating curve (Eq. (1)) −0.002 0.703 0.514 0.626 −0.055 −5.5% 1.020 0.564 0.318
Rating curve (GRG method) (Eq. (2)) 0.389 0.734 0.361 0. 535 0.006 0.6% 0.796 0.731 0.534