[MITgcm-support] How to prescribe constant OBCS

[Martin Losch]

Hi David,

see verification/exp4
in order to read obcs from a file you need to set a CPP flag and a  
runtime flag (as in exp4).
Only after that it should be possible to use exf (as an additional  
option), but all of this is not very well tested and requires a  
little bit of fiddling (with parameters).

Martin
On 10 Nov 2008, at 16:20, David Hebert wrote:

> I am trying to run a simulation with a simple, constant in time  
> boundary. When I try to run with useOBCS=.TRUE., and  
> useEXF=.FALSE., in data.pkg, the model seems to ignore my obcs  
> files and substitutes 0 for velocities and tRef, sRef for  
> temperature and salinity.
>
> When I set useEXF=.TRUE., and set all periods to 0.0, I get an  
> irecord error...
>
> (PID.TID 0000.0001) *** ERROR *** MDSREADFIELDXZ: Invalid value for  
> irecord
>
>
>
> Now, the MITgcm documenatation (section 6.3.1.2), <http:// 
> mitgcm.org/r2_manual/latest/online_documents/node235.html> seems to  
> suggetst this is very simple to set up:
>
> A simple time-management (e.g. constant in time, or cyclic with  
> fixed fequency) is provided through S/R obcs_external_fields_load.
>
> How do I set up simple constant in time boundaries that use  
> constant in time T,S,U,V files? Are there any examples in  
> verification?
>
> Thanks,
>
> David
>
>
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