[GRASS-user] Elevation above a river

Markus Neteler neteler at osgeo.org
Sun Sep 16 08:15:54 PDT 2018


Shane Carey <careyshan at gmail.com> schrieb am Fr., 14. Sep. 2018, 23:02:

> Hi All,
> Does anyone know is it possible to calculate the elevation above a river
> channel (actual river network that was digitised as opposed to being
> extracted from a DTM) from a DTM and create a polygon from it.
> I need to calculate heights of 1m and 3m above a river channel on both
> sides of the channel and create a polygon from it.

This isn't clear to me. Could you elaborate?


Thanks all.
> Le gach dea ghui,
> *Shane Carey*
> *GIS and Data Solutions Consultant*
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