[MITgcm-support] using time step less than a second ??

[Martin Losch]

Abbas, I don't think that this has changed.

Do you seriously need the combination of exf and time steps below 1sec? EXF is very convenient for simulations with "realistic" forcing that span months to years to decades. But with a time step < 1s I assume that your simulations are very short in simulation period, so simpler forcing methods (such as the default external_fields_load method) would also be appropriate. Is that the case?

Martin

On Jul 6, 2012, at 11:55 PM, Abbas Dorostkar wrote:

> Hello all,
> I remember we could not use time steps lower than 1 sec if we were using EXF package and/or some sort of calendar in simulation.  I am wondering if there has been improvement since then?
> I was getting this error message back then:
> 
> (PID.TID 0000.0001) // execution environment starting up...
> (PID.TID 0000.0001)
> (PID.TID 0000.0001) // MITgcmUV version:  checkpoint61h
> (PID.TID 0000.0001) // Build user:        hpc1921
> (PID.TID 0000.0001) // Build host:        sflogin0
> (PID.TID 0000.0001) // Build date:        Wed Aug  5 11:29:58 EDT 2009
> 
>  PID.TID 0000.0001) ># *******************
> (PID.TID 0000.0001) ># Calendar Parameters
> (PID.TID 0000.0001) ># *******************
> (PID.TID 0000.0001) > &CAL_NML
> (PID.TID 0000.0001) ># TheCalendar='gregorian',
> (PID.TID 0000.0001) >  TheCalendar='model',
> (PID.TID 0000.0001) >  startDate_1=20071216,
> (PID.TID 0000.0001) >  startDate_2=000000,
> (PID.TID 0000.0001) > &
> (PID.TID 0000.0001)
> (PID.TID 0000.0001) CAL_READPARMS: finished reading data.cal
> (PID.TID 0000.0001)   cal_Set: The time step is less than a second.
> 
> 
> Thank you 
> Abbas
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