[Qgis-user] Flow Accumulation Direction

[Blumentrath, Stefan]

Hi Daniel,

From own experience I can warmly recommend r.watershed (and r.stream.* if you want to go beyond flow accumulation and flow direction) from GRASS 7.
Very powerful for heavy datasets.

See:
http://www.sciencedirect.com/science/article/pii/S0098300411000975
http://grasswiki.osgeo.org/wiki/R.stream.*_modules
http://grasswiki.osgeo.org/wiki/Hydrological_Sciences/

Cheers
Stefan