[Qgis-user] River Flood modelling

[Jonathan Moules]

Hi Nicolas,

If you don't get a reply here that solves your issue it may be worth 
asking on the GRASS mailing list. I know GRASS has a lot of hydrographic 
tools and it's integrated into QGIS so...

https://lists.osgeo.org/mailman/listinfo/grass-user

Jonathan


On 2019-01-25 06:52, Nicolas Cadieux wrote:
> Hi,
>
> I know it can't be that simple but I would like to model a river flood 
> in a mountainous area.  I am looking for something like the Saga Lake 
> flood module with a LiDAR derived DEM, a seed but with the possibility 
> to add X amount of water.  It's basically a lake and dam scenario and 
> you just add water and figure out where the water goes down the valley 
> when it goes over the dam.  Of course I can't use the normal lake 
> flood modules because rivers are not flat therefore I need something 
> that takes the downhill valley shape into consideration.  Also, I am 
> not looking for a simple channel network map with lines and points.  I 
> would like the actual polygon or raster representation of the 2D shape 
> of the river channel.  Can you please point me in the right direction.
>
> Nicolas
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user