[MITgcm-support] sea ice experiment

[Martin Losch]

In the documentation you'll find tutorials, one is for the global  
ocean experiment and contains a section:
3.10.2.1 Numerical Stability Criteria
<http://mitgcm.org/pelican/online_documents/node109.html>

That should get you started.
M.

On 31 Oct 2007, at 09:54, Amitabh Mitra wrote:

>
> Sir,
>
>   I am trying to run a sea ice experiment for
>
> the Antarctic region -70 to -40 South and
>
> -178 to 178 East with 1x1 resolution. The
>
> corresponding 'data' file is attached.
>
> It runs for 10 days but when I extend it
>
> to 20 days the model blows with the following error:
>
> SGI_2100 11% mpirun -np 1 ./mitgcmuv
> **WARNNING** CONFIG_CHECK: useMNC is TRUE and #undef
>
> ALLOW_MNC
> STOP NORMAL END
> STOP
> SGI_2100 12% mpirun -np 1 ./mitgcmuv
> **WARNNING** CONFIG_CHECK: useMNC is TRUE and #undef
>
> ALLOW_MNC
> SOLUTION IS HEADING OUT OF BOUNDS: tMin,tMax=
>
> -2.478E+03  1.998E+03
> MON_SOLUTION: STOPPING CALCULATION
> S/R EEDIE: Only    0 threads have completed,
> 1  are expected for this configuration!
>
>
>
>   Possibly you have different setenv PARALLEL and
>
> nThreads?
> STOP MON_SOLUTION: STOPPED DUE TO EXTREME VALUES OF
>
> SOLUTION
> STOP
> SGI_2100 13%
> ------------------------------------------------------
>
>
> Please suggest suitable values for these coefficients
>
> viscAz, viscAh, diffKhT, diffKzT, diffKhS, diffKzS
>
> and deltaT so that the model runs efficiently.
>
> I have read the manual but it is not helpful
>
> in determining these values. Do you have any method
>
> to calculate these values or it is just trial and
>
> error method ?
>
> Thanking you,
>
> With Regards,
>
> Amitabh Mitra
>
>
>
>
> <data>
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