[GRASS-user] multiflow direction models

[Dylan Beaudette]

Kessie,

Ah. Well this might be a good time to ask the GRASS developers to clarify. You 
might also check out the docs behind r.terraflow .

cheers,

Dylan

On Monday 15 May 2006 13:51, Ksenia Konwicki wrote:
> Thanks Dylan.
>
> I followed this string fairly closely when it was active. I have
> investigated r.flow and r.flowmd.
>
> Question though... I am a little confused by the r.flow documentation. It
> states that it used the D-inf logarithm to calculate flow direction,
> however flow accumulation uses a single flow direction logarithm. The
> r.flowmd module appears also offer D-inf flow direction however it seems to
> only offer the Desmet & Govers multiflow contributing area calculations for
> flow
> accumulation.
>
> Our research favours Tarboton's algorithms. We would like to use GRASS for
> the computations however we will have to find a programmer or another Open
> Source option if it is not available.
>
> Thank you,
>
> Kessie.
>
> Dylan Beaudette wrote:
> > Kessie,
> >
> > Might check on some past GRASS-user messages on this thread:
> >
> > http://grass.itc.it/pipermail/grassuser/2006-February/032744.html
> >
> > Perhaps it would be a good time to create a page on this...
> >
> > Dylan
> >
> > On Monday 15 May 2006 11:34, Ksenia Konwicki wrote:
> > > Good morning,
> > >
> > > I am wondering if anyone knows whether David Tarboton's D-infinity
> > > multiflow direction algorithms have been integrated into a GRASS
> > > module.
> > >
> > > Thank you,
> > >
> > > Kessie.
> > >
> > > --
> > > Ksenia E. Konwicki, RPF
> > > Ecologist
> > >
> > > Timberline Forest Inventory Consultants
> > > 1579 9th Avenue
> > > Prince George, BC   V2L 3R8
> > > P (250)562-2628
> > > F (250)562-6942
> > > E kes at timberline.ca
> > >
> > >
> > > _______________________________________________
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> > > grassuser at grass.itc.it
> > > http://grass.itc.it/mailman/listinfo/grassuser
> >
> > --
> > Dylan Beaudette
> > Soils and Biogeochemistry Graduate Group
> > University of California at Davis
> > 530.754.7341
>
> --
> Ksenia E. Konwicki, RPF
> Ecologist
>
> Timberline Forest Inventory Consultants
> 1579 9th Avenue
> Prince George, BC   V2L 3R8
> P (250)562-2628
> F (250)562-6942
> E kes at timberline.ca

-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341