Physical descriptions of the parameters for the XAJ model
| Parameter . | Units . | Description . |
|---|---|---|
| WUM | mm | Areal mean tension water capacity of the upper layer |
| WLM | mm | Areal mean tension water capacity of the lower layer |
| WDM | mm | Areal mean tension water capacity of the deeper layer |
| B | / | Exponent of the tension water capacity distribution curve |
| C | / | Coefficient of deep evapotranspiration |
| IMP | / | Ratio of impervious area |
| KC | / | Ratio of potential evapotranspiration to pan evaporation |
| SM | mm | Areal mean free water capacity of the surface soil layer |
| EX | / | Exponent of the free water capacity curve |
| KI | / | Outflow coefficients of the free water storage to interflow |
| KG | / | Outflow coefficients of the free water storage to groundwater |
| CS | / | Recession constant of the surface water storage |
| CI | / | Recession constant of the interflow storage |
| CG | / | Recession constant of the groundwater storage |
| CL | / | Recession constant of the lag and route method |
| Lag | hour | Lag time of the lag and route method |
| Parameter . | Units . | Description . |
|---|---|---|
| WUM | mm | Areal mean tension water capacity of the upper layer |
| WLM | mm | Areal mean tension water capacity of the lower layer |
| WDM | mm | Areal mean tension water capacity of the deeper layer |
| B | / | Exponent of the tension water capacity distribution curve |
| C | / | Coefficient of deep evapotranspiration |
| IMP | / | Ratio of impervious area |
| KC | / | Ratio of potential evapotranspiration to pan evaporation |
| SM | mm | Areal mean free water capacity of the surface soil layer |
| EX | / | Exponent of the free water capacity curve |
| KI | / | Outflow coefficients of the free water storage to interflow |
| KG | / | Outflow coefficients of the free water storage to groundwater |
| CS | / | Recession constant of the surface water storage |
| CI | / | Recession constant of the interflow storage |
| CG | / | Recession constant of the groundwater storage |
| CL | / | Recession constant of the lag and route method |
| Lag | hour | Lag time of the lag and route method |