Re: [GRASS-user] Strange r.slope.aspect output of Aster dem : slope calculations

2014-02-12 Thread manuel.martin
Thanks for the replies, we actually derived SRTM DEMs and yes this thime without artifacts. Cheers On 01/08/2014 09:16 PM, Markus Metz wrote: On Fri, Dec 20, 2013 at 4:54 PM, manuel.martin manuel.mar...@orleans.inra.fr wrote: Hi all, I just computed the slope using r.slope.aspect on the

Re: [GRASS-user] Strange r.slope.aspect output of Aster dem : slope calculations

2013-12-27 Thread Matthias Rumitz
... sorry, if this has alredy been considered: http://gis-lab.info/docs/aster-report-v3.pdf Am 23.12.2013 10:44, schrieb Moritz Lennert: On 20/12/13 16:54, manuel.martin wrote: Hi all, I just computed the slope using r.slope.aspect on the Aster data over the full French territory, and as a

Re: [GRASS-user] Strange r.slope.aspect output of Aster dem : slope calculations

2013-12-23 Thread Moritz Lennert
On 20/12/13 16:54, manuel.martin wrote: Hi all, I just computed the slope using r.slope.aspect on the Aster data over the full French territory, and as a result got large artefact stripes on a south west-north east axe? When could it come from (inadequate re-projection, the slope routine or the

[GRASS-user] Strange r.slope.aspect output of Aster dem : slope calculations

2013-12-20 Thread manuel.martin
Hi all, I just computed the slope using r.slope.aspect on the Aster data over the full French territory, and as a result got large artefact stripes on a south west-north east axe? When could it come from (inadequate re-projection, the slope routine or the aster data)? The stripped result :

Re: [GRASS-user] Strange r.slope.aspect output of Aster dem : slope calculations

2013-12-20 Thread Markus Neteler
On Fri, Dec 20, 2013 at 4:54 PM, manuel.martin manuel.mar...@orleans.inra.fr wrote: Hi all, I just computed the slope using r.slope.aspect on the Aster data over the full French territory, and as a result got large artefact stripes on a south west-north east axe? When could it come from

Re: [GRASS-user] Strange r.slope.aspect output of Aster dem : slope calculations

2013-12-20 Thread Vaclav Petras
On Fri, Dec 20, 2013 at 12:37 PM, Markus Neteler nete...@osgeo.org wrote: On Fri, Dec 20, 2013 at 4:54 PM, manuel.martin manuel.mar...@orleans.inra.fr wrote: Hi all, I just computed the slope using r.slope.aspect on the Aster data over the full French territory, and as a result got large