SAGA GIS

Before we combine R and SAGA, let’s first have a look at a SAGA module separately to get a feel for what we can do with it.

Task: SAGA GIS I
  • Import a terrain model into SAGA.
    • Import/Export
    • GDAL
    • Import Raster
  • Preprocess the terrain model for the hydrological analysis with the Fill Sinks tool.

Fill Sinks for flow accumulation (https://sagatutorials.wordpress.com/preprocessing-and-catchment-deliniation/)

Fill Sinks for flow accumulation (https://sagatutorials.wordpress.com/preprocessing-and-catchment-deliniation/)
Task: SAGA GIS II
  • Delinate catchment areas from the preprocessed terrain model with the tool Channel network and Drainage Basins.
  • Also calculate the flow accumulation.