[RegCNET] Extend the simulation period

[Rauscher Sara A]

Hi Dilip,

As long as you saved the "SAV" files from your first run, you can simply
restart the model and continue your simulation. These files are in the
output directory and have names like SAV.2000010100.

To restart the run, create the ICBC files that you will need. You do NOT
have to re-run terrain or change anything in the domain.param file. Edit
icbc.param for the new dates that you will need (IDATE1 and IDATE2) and
run icbc.x. Then, in your regcm.in file, change ifrest to "true". Idate0
will be the date the run was started (i.e., from that first year that
you did). Then change idate1 and idate2 to the new dates for this
simulation.

You will also need to link the SAV file to fort.14 in regcm.x. For example:

/bin/ln -sf output/SAV.2001010100  fort.14

There is an example of a restart on the RegCM tutorial page at
http://www.ictp.trieste.it/RegCNET/tut3.html.

Let me know if you have further questions.

cheers,
sara

Dilip Ganguly wrote:
> Hi,
> I have completed one year simulation using RegCM3 over a certain domain. 
> Initially I had assumed that it would be sufficient for my purpose. But 
> now I wish to continue my simulation for another year over the same 
> domain. Since the model outputs are sensitive to the initial condition, 
> what should I do to complete this simulation so that I get the model 
> outputs to be the same as what I would have obtained with a continuous two 
> year simulation. Is it the same as a normal restart procedure when the 
> model crashes in between the complete simulation due to several reasons. 
> Do I need to change anything in the domain.param file or changing the 
> parameters IDATE1 and IDATE2 in icbc.param and regcm.in is sufficient ?
>
> Waiting for your suggestions.
>
> Dilip. 
>   
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>         Dr. DILIP GANGULY                               
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-- 

Dr. Sara A. Rauscher
Earth System Physics Section 
The Abdus Salam International Centre for Theoretical Physics
Strada Costiera 11 
34014 Trieste ITALY
ph: +39 040 2240 225 fax: +39 040 2240 449
email: srausche at ictp.it