[GRASS-user] [GRASSLIST:1069] elevation difference: the river / watershed pixel

[Rado Bonk]

Dear GRASS users,

I would like to get the elevation difference between the watershed pixel 
and its closest related river pixel (box pixels are in the same sub-basin).

The watershed pixels and the river pixels should be in one sub-basin, 
thus the elevation difference is not be computed based on the river 
pixel which is closer but in the another sub-basin.

Also does somebody have and algorithm to flood the floodplain in several 
steps with user defined water levels? I would appreciate any hint here.

Thanks a lot,

Rado





-- 
Dr. Radoslav Bonk
European Commission - DG  Joint Research Centre (JRC)
Institute of Environment and Sustainability (IES)
LM Unit - Natural Hazards
Via E. Fermi, TP 261, 210 20 Ispra (VA), ITALY
tel: 0039 0332 78 6013
fax: 0039 0332 78 6653
http://natural-hazards.jrc.it/floods