[MITgcm-support] Sea surface height problem

[Jody Klymak]

> On Aug 7, 2015, at  4:02 AM, kaveh Purkiani <kavehpurkiani at googlemail.com> wrote:
> 
> Hi Jody,
> 
> 
> Thank you very much for your answer.
> 
> The externalForcingCycle and period were set to half a day (a M2 tidal cycle) and the total period of simulation.

That doesn’t sound right.   If you want to prescribe a bc every hour (say), then set externalForcingPeriod to 3600.  If you want that to repeat every 12 hours set externalForcingPeriod to 43200 (of course you may want to set those to 3720 and 44640 if you want 12.4 h diurnal tides.).  

Cheers,   Jody



> I checked the structure of boundary conditions. It should be similar to what I have prescribed (N(x,y), Nz, time) in my set up.
> 
> regards
> 
> Kaveh.
> 
>   
> 
> On Thu, Aug 6, 2015 at 7:18 PM, Jody Klymak <jklymak at uvic.ca <mailto:jklymak at uvic.ca>> wrote:
> 
>> On Aug 6, 2015, at  10:05 AM, kaveh Purkiani <kavehpurkiani at googlemail.com <mailto:kavehpurkiani at googlemail.com>> wrote:
>> 
>> OBCSfixTopo=.FALSE.,
>>  OB_Jnorth= 100*0,
>>  OB_Jsouth = 100*0,
>>  OB_Ieast = 1*0,98*100,1*0, (98 cells are considered as open boundary)
>                     ^^^^  Not sure, but could this be your problem?
>>  OB_Iwest = 1*0,98*1,1*0,
>>  useOBCSprescribe = .TRUE.,
>>  OBWuFile   = 'OBU.bin',
>>  OBEuFile    = 'OBEU.bin ‘,
> 
> You also need to make sure OBU and OBEU.bin are written in the right order!  Not sure Ny,Nz,time is correct.  Off the top of my head I’d have though Nz,Ny,time, but I could be misremembering.  
> 
> Also, have you set externForcingPeriod and externForcingCycle to the right values in “data”?
> 
> Cheers,   Jody
> 
> 
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