| | Name | Type | Identifier | Description | Constraints |
| Input | Table | table, input | TABLE | - | - |
| Output | Table (*) | data object Table, output, optional | TABLEout | - | - |
| Table (*) | data object Table, output, optional | TABLEparms | - | - |
| Options | Date Column | table field | DATE_Field | Select the column containing the Date | - |
| Streamflow Column | table field | DISCHARGE_Field | Select the Column containing Discharge Values | - |
| Precipitation Column | table field | PCP_Field | Select the Column containing precipitation Values | - |
| Temperature Column | table field | TMP_Field | Select the Column containing Temperature Values | - |
| Subbasin Inflow | table field | INFLOW_Field | Select the column containing inflow data to the subbasin | - |
| Is the subbasin upstream (no external inflow) | boolean | bUPSTREAM | If checked, it means there is no external inflow to the subbasin | Default: 1 |
| Using temperature data? | boolean | USE_TMP | If checked, then temperature data are used. | Default: 1 |
| Number of Simulations | integer number | NSIM | Number of Simulations for Calibration | Minimum: 1 Maximum: 10000000 Default: 1000 |
| Area of the Watershed in [km2] | floating point number | AREA | Area of the Watershed in [km2] used for unit conversion | Minimum: 0.000010 Default: 100.000000 |
| Storage | choice | STORAGE | - | Available Choices: [0] Single Storage [1] Two Parallel Storages [2] Two Storages in Series Default: 0 |
| IHACRES Version | choice | IHACVERS | - | Available Choices: [0] Jakeman & Hornberger (1993) [1] Croke et al. (2005) Default: 0 |
| Snow Tool on/off | boolean | SNOW_TOOL | If checked the snow module is active | Default: 1 |
| (*) optional |