Calculate the Topographic Wetness Index in QGIS

This video shows how to calculate the Topographic Wetness Index (TWI) from a DTM using QGIS. You can use this procedure for catchments, subcatchments or parcels. This video is part of IHE Delft OpenCourseWare. More free materials are available at http://www.gisopencourseware.org For an overview of our GIS courses and info on tailor made trainings and advise see our folder: https://www.un-ihe.org/sites/default/... More information about the book "QGIS for Hydrological Applications - Recipes for Catchment Hydrology and Water Management" by Kurt Menke and Hans van der Kwast can be found at the website of Locate Press: http://www.locatepress.com/hyd IHE Delft and Nieuwland Geoinformatie offer an online course. It includes support from experienced trainers and you'll get the official QGIS certificate after completion. More info at: http://www.learning-gis.com Subscribe to the YouTube Channel for updates!