On Wed, 15 Feb 2017, Laurent C. wrote:

The h_max output map of Itzï will correspond to the maximum water level
reached during the simulation.

Laurent,

  I did this to reveal water accumulation with un-blocked flows and did not
see how to modify it to show blocked flow accumulations.

To simulate the blockage, you might need to change the DEM locally. But in
the case of a under-road culvert, just leaving the measured elevation of
the road might be enough.

  I'll need to experiment with this to understand how to 'leave the road
elevation' when the culvert's blocked. Perhaps increasing the DEM of all
cells to that of the road elevation will do it.

If you use direct rainfall, all the cells in the h_max map will appear wet
(although with very small depth). You will need to clean up the map using
r.mapcalc to keep only the cells with a water depth above a threshold of
your choice.

  Don't completely understand this now; thinking about it and trying various
simulations will probably help.

Thanks,

Rich
_______________________________________________
grass-user mailing list
[email protected]
https://lists.osgeo.org/mailman/listinfo/grass-user

Reply via email to