Parameters used for calibration of surface runoff, baseflow, P and N
| Parameter description . | Parameter . | Default values . | Final values . | HRUs for which parameter is changed . |
|---|---|---|---|---|
| Curve number | CN | Varies | 15% decrease | All HRUs |
| Available water capacity of soil layer (mm H2O/mm soil) | SOL_AWC | Varies | 15% increase | All HRUs |
| Saturated hydraulic conductivity (mm/hr) | SOL_K | Varies | 10% decrease | All HRUs |
| Biological mixing efficiency | BIOMIX | 0.2 | 0.01 | All HRUs |
| Baseflow alpha factor (1/days) | ALPHA_BF | 0.048 | 0.50 | All HRUs |
| Groundwater ‘revap’ coefficient | GW_REVAP | 0.02 | 0.2 | All HRUs |
| Deep aquifer percolation factor | RCHRG_DP | 0.05 | 0.25 | All HRUs |
| Groundwater delay time (days) | GW_DELAY | 31 | 100 | All HRUs |
| USLE equation support practice factor | USLE_P | 1 | 15% decrease | All HRUs |
| Exponent parameter for calculating sediment re-entrained in channel sediment routing | SPEXP | 1 | 1.5 | All HRUs |
| Peak rate adjustment factor for sediment routing in the main channel | PRF | 1 | 0.5 | All HRUs |
| Peak rate adjustment factor for sediment routing in the subwatershed | ADJ_PKR | 1 | 0.5 | All HRUs |
| Manning's n value for overland flow | OV_N | 0.1 | 0.4 | FORESTED |
| Initial soluble P concentration in soil layer (mg P/kg soil) | SOL_LABP | 5 | 3 | All HRUs |
| Initial organic P concentration in soil layer (mg P/kg soil) | SOL_ORGP | 0 | 0.01 | All HRUs |
| Organic N in the baseflow (mg/L) | LAT_ORGN | 0 | 2 | All HRUs |
| Initial organic N concentration in the soil layer (mg N/kg soil) | SOL_ORGN | 0 | 0.01 | All HRUs |
| Parameter description . | Parameter . | Default values . | Final values . | HRUs for which parameter is changed . |
|---|---|---|---|---|
| Curve number | CN | Varies | 15% decrease | All HRUs |
| Available water capacity of soil layer (mm H2O/mm soil) | SOL_AWC | Varies | 15% increase | All HRUs |
| Saturated hydraulic conductivity (mm/hr) | SOL_K | Varies | 10% decrease | All HRUs |
| Biological mixing efficiency | BIOMIX | 0.2 | 0.01 | All HRUs |
| Baseflow alpha factor (1/days) | ALPHA_BF | 0.048 | 0.50 | All HRUs |
| Groundwater ‘revap’ coefficient | GW_REVAP | 0.02 | 0.2 | All HRUs |
| Deep aquifer percolation factor | RCHRG_DP | 0.05 | 0.25 | All HRUs |
| Groundwater delay time (days) | GW_DELAY | 31 | 100 | All HRUs |
| USLE equation support practice factor | USLE_P | 1 | 15% decrease | All HRUs |
| Exponent parameter for calculating sediment re-entrained in channel sediment routing | SPEXP | 1 | 1.5 | All HRUs |
| Peak rate adjustment factor for sediment routing in the main channel | PRF | 1 | 0.5 | All HRUs |
| Peak rate adjustment factor for sediment routing in the subwatershed | ADJ_PKR | 1 | 0.5 | All HRUs |
| Manning's n value for overland flow | OV_N | 0.1 | 0.4 | FORESTED |
| Initial soluble P concentration in soil layer (mg P/kg soil) | SOL_LABP | 5 | 3 | All HRUs |
| Initial organic P concentration in soil layer (mg P/kg soil) | SOL_ORGP | 0 | 0.01 | All HRUs |
| Organic N in the baseflow (mg/L) | LAT_ORGN | 0 | 2 | All HRUs |
| Initial organic N concentration in the soil layer (mg N/kg soil) | SOL_ORGN | 0 | 0.01 | All HRUs |