A mass balance index.
| | Name | Type | Identifier | Description | Constraints |
| Input | Elevation | Grid (input) | DEM | - | - |
| Vertical Distance to Channel Network (*) | Grid (optional input) | HREL | - | - |
| Output | Mass Balance Index | Grid (output) | MBI | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| T Slope | Floating point | TSLOPE | - | Minimum: 0.000000 Default: 15.000000 |
| T Curvature | Floating point | TCURVE | - | Minimum: 0.000000 Default: 0.010000 |
| T Vertical Distance to Channel Network | Floating point | THREL | - | Minimum: 0.000000 Default: 15.000000 |
| (*) optional |