Table 2 Description of the 28 error metrics.
Variable | Error Metric | Unit | Relevance |
|---|---|---|---|
Flow | Daily Kling Gupta Efficiency (KGE) | — | Multiobjective metric |
Daily Mean Absolute Error (MAE) | m3/s | Overall daily flow | |
Daily Nash Sutcliffe Efficiency (NSE) | — | High daily flow | |
Daily Root Mean Square Error (RMSE) | m3/s | High daily flow | |
Daily Transformed Root Mean Square Error (TRMSE) | m3/s | Low daily flow | |
Daily Variance Bias | — | Daily flow variability | |
Monthly KGE | — | Multiobjective metric | |
Monthly MAE | m3/s | Overall monthly flow | |
Monthly NSE | — | High monthly flow | |
Monthly RMSE | m3/s | High monthly flow | |
Monthly TRMSE | m3/s | Low monthly flow | |
Monthly Variance Bias | — | Monthly flow variability | |
Annual Volume Bias | — | Total water balance | |
Flow Regime Quantile 0–10% (Q0–10) Volume Bias | — | Low flow water balance | |
Q10–25 Volume Bias | — | Low flow water balance | |
Q25–50 Volume Bias | — | Moderate flow water balance | |
Q50–75 Volume Bias | — | Moderate flow water balance | |
Q75–90 Volume Bias | — | High flow water balance | |
Q90–100 Volume Bias | — | High flow water balance | |
Winter (DJF) Volume Bias | — | Seasonal water balance | |
Spring (MAM) Volume Bias | — | Seasonal water balance | |
Summer (JJA) Volume Bias | — | Seasonal water balance | |
Fall (SON) Volume Bias | — | Seasonal water balance | |
ET | Annual Bias | — | Total water balance |
Winter (DJF) Bias | — | Seasonal water balance | |
Spring (MAM) Bias | — | Seasonal water balance | |
Summer (JJA) Bias | — | Seasonal water balance | |
Fall (SON) Bias | — | Seasonal water balance |
