Create a Graphical Model 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.

We'll use the data from the previous tutorial.

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.