[GRASS-user] create basins of similar area

[Phillip Allen]

Hi,
Not to hijack this thread....but
Actually what Martin is asking for would be useful for us in geochemical
mineral exploration.  Having GRASS create 4-5km2 (or whatever size range)
basins/catchments automatically would be useful to create tentative stream
sediment sample locations.   I prefer to create my stream sediment sample
locations based upon catchment size much more than the traditional & often
miss used stream order method.
There is my two cents.
Phil


On Fri, Apr 26, 2019 at 7:35 AM Martin Landa <landa.martin at gmail.com> wrote:

> Hi,
>
> čt 25. 4. 2019 v 20:14 odesílatel Ken Mankoff <mankoff at gmail.com> napsal:
> > Maybe make basins with threshold an order of magnitude smaller. Then
> merge small areas to get your 4-5 km2 areas. Still not totally sure how
> this makes sense hydrologically.
>
> right, it doesn't make sense probably from hydrologic point of view.
> Let me explain reasoning. My colleagues are working on developing
> distributed event-based model for surface and subsurface runoff and
> erosion. We are working on experimental version which enables
> computation parallelization. In initial phase AOI is split into tiles.
> Instead of regular grid of tiles a basin-based tiles are used. This is
> reason why basins (defining tiles) should be of similar area size.
> Martin
>
> --
> Martin Landa
> http://geo.fsv.cvut.cz/gwiki/Landa
> http://gismentors.cz/mentors/landa
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/grass-user
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20190426/5b06ad80/attachment-0001.html>