Freshwater-specific environmental variables

This tutorial shows you how to calculate stream-specific freshwater variables by relating the upstream e.g. land cover to any given downstream location using the GRASS GIS add-ons r.stream.watersheds & r.stream.variables . The original 1km data and publication are available here - see also the original code from spatial-ecology.net . This example contains the following steps: Download an exemplary digital elevation model (DEM) Extract the stream network from the DEM Delineate major drainage basi