SAGA.ta_hydrology.15: SAGA Wetness Index
The 'SAGA Wetness Index' is, as the name says, similar to the 'Topographic Wetness Index' (TWI), but it is based on a modified catchment area calculation ('Modified Catchment Area'), which does not think of the flow as very thin film. As result it predicts for cells situated in valley floors with a small vertical distance to a channel a more realistic, higher potential soil moisture compared to the standard TWI calculation.
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http://tb17.geolabs.fr:8111/ogc-api/processes/SAGA.ta_hydrology.15.html Last modified: Sat Dec 4 00:09:36 CET 2021