[GRASS-user] Calculate stream order from digitized hydrology network

[Johannes Radinger]

Hi Filipe,

you mean your hydrological network is in vector format?

Maybe you  can try the v.strahler add-on but I don't know
how uptodate this module is:

http://grass.osgeo.org/wiki/GRASS_AddOns#v.strahler

/johannes


Am 14.05.2012 um 13:26 schrieb Filipe Silva Dias:

> Dear all,
> 
> I have a digitized hydrological network and I need to calculate the stream order (Horton, Strahler etc). 
> 
> I found r.stream.order but it requires that the hydrological network comes from a DEM, which in my case produced an hydrological network that is considerably different than the digitized one (tried both with r.wateshed, r.terraflow and r.stream.extract).
> 
> Is there a tool capable of doing this? Apparently ArcGIS can do this, but id prefer na open source solution.
> 
> Thanks
> 
> Best regards
> 
> Filipe
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