[GRASS-user] r.stream.extract Montgomery

stephen sefick ssefick at gmail.com
Thu Aug 5 09:34:05 EDT 2010


I would like to use the Montgomery method to extract streams (exp~2
from the paper).  What should the threshold value be?  And in general
what should the threshold value be?  I am working in the southeastern
coastal plain (USA), which is characterized by low gradient (if this
helps).  I am using 1m resolution LIDAR data.  I would like to extract
the most realistic map of streams that I can.  I am also trying to
track down the inttermitance perminance threshold.  Any guidance would
be greatly appreciated.
kindest regards,

-- 
Stephen Sefick
____________________________________
| Auburn University                                   |
| Department of Biological Sciences           |
| 331 Funchess Hall                                  |
| Auburn, Alabama                                   |
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|___________________________________|
| sas0025 at auburn.edu                             |
| http://www.auburn.edu/~sas0025             |
|___________________________________|

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

                                -K. Mullis


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