[GRASS-user] Global Hydrological modeling with r.watershed, r.stream.extract, r.stream.extract

[Giuseppe Amatulli]

Hi Markus,

I use GRASS 7.6.0
under a HPC running
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 7.7 (Maipo)
Release: 7.7
Codename: Maipo

The compression is:

GRASS 7.6.0 (nc_spm_08_grass7):~ > r.compress -p map=flow
<flow> is compressed (method 5: ZSTD). Data type: DCELL
<flow> has a compressed NULL file
[Raster MASK present].

My option in selecting r.watershed with out the -m is manly due to be able
to use the -b option and also be able to run the tile-computation in 6
hours vs several days (probably weeks) of the full globe (or continents)
run in segmentation mode - made quit hard to do debugging and re-running.

Do you have any suggestions for the mismatching of the borders?

Best Giuseppe




On Tue, 12 May 2020 at 10:24, Markus Neteler <neteler at osgeo.org> wrote:

> On Tue, May 12, 2020 at 12:03 AM Giuseppe Amatulli
> <giuseppe.amatulli at gmail.com> wrote:
> >
> > Thanks Ken,
> > I try that option but it was creating output files (e.g. flow
> accumulation) extremely huge, moreover it does not support the option  -b.
> > Markus any suggestion?
>
> Out of curiosity: which GRASS GIS version do you use on which operating
> system?
> And: which raster compression do you use - the default? (r.compress -p
> ... will tell you)
>
> Best,
> markusN
>


-- 
Giuseppe Amatulli, Ph.D.

Research scientist at
School of Forestry & Environmental Studies
Center for Research Computing
Yale University
New Haven, CT, USA
06511
Teaching: http://spatial-ecology.net
Work:  https://environment.yale.edu/profile/giuseppe-amatulli/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20200512/c6d53851/attachment.html>