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 :
https://www.dropbox.com/s/fcxaei1be9wsmka/slopeFranceSmall.png
https://www.dropbox.com/s/b52k5co46ujmpt7/slopeFrance.jpg

Thank you in advance,                Manuel


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