Create a Graphical Model and Processing Script for the HAND algorithm

In this tutorial we're going to make a graphical model in QGIS to calculate the Height Above Nearest Drainage (HAND) with the PCRaster Tools. After creating the model, you'll learn how to export it to a QGIS Processing Script, which you can modify and customise for your purposes with the Python skills acquired in this course.

Data for this tutorial can be downloaded from the main course page.

Reference : Renno, C. D., Nobre, A. D., Cuartas, L. A., Soares, J. V., Hodnett, M. G., Tomasella, J., & Waterloo, M. J. (2008). HAND, a new terrain descriptor using SRTM-DEM: Mapping terra-firme rainforest environments in Amazonia. Remote Sensing of Environment, 112(9), 3469-3481.