Length of drainage network

[Michael Hanratty]

In message <199705051047.NAA01205 at www.maich.gr>  writes:
> Hi GRASS User's:
> I have streams map which is an output of r.watershed program. How can I find
> the length of drainage network to determine drainage density of the watershed
> from this map?
> Thanks in advancing for your help
> 
> Ezzeddine
> e-mail: sdiri at www.maich.gr

One way that I've estimated stream length is to divide the area of the stream 
image by the width of a cell.




Michael Hanratty                           Phone: (612) 627-4590
St. Anthony Falls Laboratory               Fax: (612) 627-4609
Dept. of Civil Engineering
University of Minnesota
Mississippi River @ 3rd Ave. SE
Minneapolis, MN 55414