| Variable | Equation | Description |
| Specific drainage area | As = Ac·L2/[Ló(2L2)1/2] | As = Specific drainage area Ac = Cumulative flow (number of cells) L = resolution MDT [m] (It will be used L ó (2L2)1/2 depending on whether the flow direction or not diagonal) |
| Moisture topographical index | W = ln(As/tanb) | W = Moisture content As = Specific drainage area b= Local slope angle |
| Stream power index | O = As × tanb | O = Stream power index As = Specific drainage area b= Local slope angle |
| Sediment transport capacity index | LS = (As/22.13)0.6 × (Senb/0.0896)1.3 | LS = Sediment transport capacity index As = Specific drainage area b= Local slope angle |
| Normalized difference vegetation index | NDVI = (PIR − VIS)/(PIR + VIS) | NDVI = Normalized difference vegetation index PIR = Near infrared band VIS= Visible red band |