There has been some discussion on this list before about using
TOPMODEL in GRASS. Most of us have just figured that using the r.watershed
was good for calculating the parameter "a".
However, I have recently learned that it is important that the
water be allowed to follow MULTIPLE FLOWPATHS for a reasonable accurate
saturated area map. Has anyone implemented such a routine in GRASS?
S. Chairat and J. Delleur have published a paper on this, but I don't know
how to get their algorithm (S. Chairat is in Tunisia). I would be very
interested in discussing this further with anyone.
Jane Rossing
jr20@cornell.edu
Jane Rossing (rossing@swlab.aben.cornell.edu) wrote:
: S. Chairat and J. Delleur have published a paper on this, but I don't know
: how to get their algorithm (S. Chairat is in Tunisia). I would be very
: interested in discussing this further with anyone.
Jane: I have no working code, but I've thought a lot about
such an algorithm. There are a number of neat things that
can be done with multiple-flowlines (flow around islands.
mixing in lakes, swamps, modelling dispersion, etc.) Keep
me posted--if there's enough need, maybe I could be persuaded.
I haven't seen Chairat and Delleur, where was it published?
John Fairfield john@mutt.cs.jmu.edu
Jane
Its been a few weeks since I have been able to beg/steal/borrow/work out
how to use a modem, hence the belated reply to this message. The
algorithms have been incorporated into the TAPESG programs by (late) Ian
Moore, and there was a paper presented at the GIS/Environmental Modeling
conference at Breckinbridge in September 1993. Unfortunately the program
is not PD - if you are interested I can provide you with contacts for
some of Ian's collaborators. I have also written a program to import the
results into GRASS if you need a copy.
----------------------------------------------------------------------------
Richard Beecham email:beecham@aerg.canberra.edu.au
Hydrology Unit phone:(02) 895 7169
NSW Department of Water Resources fax :(02) 895 7834
Parramatta NSW 2124
Australia
On Tue, 20 Sep 1994, Jane Rossing wrote:
There has been some discussion on this list before about using
TOPMODEL in GRASS. Most of us have just figured that using the r.watershed
was good for calculating the parameter "a".
However, I have recently learned that it is important that the
water be allowed to follow MULTIPLE FLOWPATHS for a reasonable accurate
saturated area map. Has anyone implemented such a routine in GRASS?
S. Chairat and J. Delleur have published a paper on this, but I don't know
how to get their algorithm (S. Chairat is in Tunisia). I would be very
interested in discussing this further with anyone.
Jane Rossing
jr20@cornell.edu