| | 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 | - | - |
| Table (*) | Data Object Table, output, optional | TABLEsettings | - | - |
| 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 | - |
| Using temperature data? | Boolean | USE_TMP | If checked, then temperature data are used. | Default: 1 |
| Area of the Watershed in [km2] | Floating point | AREA | Area of the Watershed in [km2] used for unit conversion | Minimum: 0.000010 Default: 100.000000 |
| Parameter (c) | Floating point | CFAC | Parameter (c) to fit streamflow volume | Minimum: 0.000000 Maximum: 1.000000 Default: 0.001000 |
| (Tw) wetness decline time constant | Floating point | TwFAC | Tw is approximately the time constant, or inversely,the rate at which the catchment wetness declines in the absence of rainfall | Minimum: 0.010000 Maximum: 150.000000 Default: 1.000000 |
| Storage | Choice | STORAGE | - | Available Choices: [0] Single Storage [1] Two Parallel Storages [2] Two Storages in Series !!! not yet implemented !!! Default: 0 |
| IHACRES Version | Choice | IHACVERS | - | Available Choices: [0] Jakeman & Hornberger (1993) [1] Croke et al. (2005) Default: 0 |
| Using the snow-melt module? | Boolean | SNOW_TOOL | If checked, snow-melt module is used. | Default: 0 |
| Write all calculated Time Series in a table? | Boolean | WRITEALL_TS | If checked, then a second output table with all Time Series data is created. | Default: 1 |
| (*) optional |