[GRASS-user] Fills DEM with volume of water

[Moritz Lennert]

[Please keep discussions on the list]

On 25/08/17 10:27, antonio cotroneo wrote:
> Thanks Moritz,
> I thinked in first time r.lake. About this, it's possible setting the volume of water with r.lake?

No, that's why I proposed to take the problem backwards: create a lake, 
then calculate its volume. You will then have to iterate in order to get 
closer to your desired volume, i.e. if the calculated volume is to high, 
reduce the water height of the lake, if the volume is too low, increase 
the water height.

There are maybe better options, but that's what I can see as a possible 
path...

Moritz

> --------------------------------------------
> Ven 25/8/17, Moritz Lennert <mlennert at club.worldonline.be> ha scritto:
> 
>   Oggetto: Re: [GRASS-user] Fills DEM with volume of water
>   A: "antonio cotroneo" <antonio.cotroneo79 at yahoo.it>, grass-user at lists.osgeo.org
>   Data: Venerdì 25 agosto 2017, 10:07
>   
>   On 24/08/17 09:22, antonio
>   cotroneo wrote:
>   > Hi all,
>   > I want viewhow a volume ( 54250 cubic
>   meters) of water calculated with Hydrologic Study,
>   accumulates in lower parts of my DEM at 1 meter resolution.
>   My goal it's view the level that water reaches inside
>   the raster. What tools can I use in GRASS GIS?
>   
>   I'm not sure I undertand
>   your question 100%. What do you mean by "how
>   water accumulates in lower parts" ?
>   
>   Possibly some combination of
>   r.lake + r.volume would allow you to go
>   backwards and see which volume of water you
>   have at different lake levels.
>   
>   Moritz
>   
>