Table 1
Statistical indexes and their mathematical definition
| Metric Name | Function |
|---|---|
| Pearson's CC |  |
| Percentage of bias |  |
| Nash–Sutcliffe coefficient of efficiency |  |
| Modified Kling-Gupta Efficiency |  |
| Metric Name | Function |
|---|---|
| Pearson's CC | |
| Percentage of bias | |
| Nash–Sutcliffe coefficient of efficiency | |
| Modified Kling-Gupta Efficiency | |
and 
are the observed and simulated discharges for the ith day, respectively, and 
and 
are the average values of the observed and simulated discharges for the entire period under consideration.