[GRASS-user] Short r.watershed question

Markus Metz markus.metz.giswork at googlemail.com
Mon Aug 24 11:05:00 EDT 2009


Christian Schwartze wrote:
> Dear GRASS user,
>  
> maybe you can help me in understanding the stream network map provided 
> by r.watshed analysis tool. Am i right in thinking that each segment 
> given by an odd integer drains into a segment with a lower identifier?
Yes. If a stream segment drains into another stream segment, that one 
downstream has a lower cell value than the ones upstream, but that is 
more by accident, no particular ordering scheme implied.

Markus M



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