Length of drainage network

GRASS GRASS user
1

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@www.maich.gr

2

On Mon, 5 May 1997, Ezzeddine Sdiri wrote:

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?

If drainage density is #stream pixels/watershed, then you can use r.mask
to find stream components in each watershed, and then use r.stats to give
you a cell or area count.

If I'm off in left field, drop me a note.

Angus.