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tcoulthard / caesar-lisflood

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Channel Modeling #7

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago 
Hi Professor Coulthard. 

I have a little doubt about reach mode in CAESAR.
I'm sorry if this doubt has already been made ​​clear in some paper.
I would like to know if I use just the reach model, and use just the DEM of the 
channel, and use as input the discharge of specific points (as suggested) 
CAESER will simulated the channel as a hydrodynamic model? Or I need burn the 
channel in watershed DEM and use the entire watershed.
I have special interest in sediment dynamics of the channel over long time 
scale.

Thanks a lot
Roberto

Original issue reported on code.google.com by roberto....@gmail.com on 6 Dec 2011 at 1:27

GoogleCodeExporter commented 9 years ago 
Hi Roberto,
Yes - CAESAR in reach mode if you have a DEM of the channel and then add water 
(and sediment) at the top of the reach it will simulate the reach as a 
hydrodynamic model. 

You can simulate the whole catchment above the reach as well if you like - but 
that can make the model much larger - or you have to use larger pixel sizes = 
less detail. 

In previous simulations, we've run the catchment above a reach in catchment 
mode, and used the water and sediment outputs from the catchment above to then 
form the inputs to a separate reach model model of a reach that we are 
interetsed in.
Tom

Original comment by Tom.Coul...@gmail.com on 6 Dec 2011 at 3:44

GoogleCodeExporter commented 9 years ago 
Hi Tom..
thanks for the answer...you give me a good idea. 
I made a survey of a reach (~3000 point in ~3km of channel) but there is a 
great diversity of sediments, and I had this doubt about input different 
discharges and sediment in specifics points of the reach. I am really very 
impressed about CAESAR, it looks like a very complete model, rainfall-runoff 
and hydrodynamic model.
Thanks for available us the powerful tool of research.
Best Regards
Roberto

Original comment by roberto....@gmail.com on 6 Dec 2011 at 4:11

GoogleCodeExporter commented 9 years ago 
The change for this is done now.

Original comment by Tom.Coul...@gmail.com on 30 May 2012 at 8:50