[MITgcm-support] Surface waves relaxation without viscosity terms

[quentin jamet]

Hello Jean-Michel,

I made a mistake when copying the data.diagnostics file. I did remove the
frequency=50year for my previous tests.

I made better tests, and I think I fanally find the way out : when using
mnc file format combined to repeatCycle, averaging diagnostics are saved at
the end of the cycle. This results in a model_time 'T' into the mnc file
which corresponds to the date of saving instead of the date of averaging.

I hope I made myself clear enought.

Thanks again

Quentin

2013/1/30 Jean-Michel Campin <jmc at ocean.mit.edu>

> Hi Quentin,
>
> I sometimes uses this repeatCycle and averagingFreq feature
> but not with NetCDF files (although I thought I checked that
> it was also working with mnc).
>
> One thing that I found curious in your data.diagnostics file is
> the frequency (50 yrs) which is much longer than the simulated
> time (4.yrs). Don't know if this has something to do with your problem.
>
> Also, for the 2nd output file, should be:
> >    fields(1:4,2) = 'THETA   ','SALT    ','PHIHYD  ','CONVADJ ',
> instead of:
> >    fields(1,2) = 'THETA   ','SALT    ','PHIHYD  ','CONVADJ ',
>
> Cheers,
> Jean-Michel
>
> On Tue, Jan 29, 2013 at 11:33:18AM +0100, quentin jamet wrote:
> > Dear MITgcm developpers and users,
> >
> > I have a problem using the diagnistic options repeatCycle and
> averagingFreq.
> > When runing with this configuration for 4 years, variables within the
> output
> > files DiagOcnEta.*.nc contains the good dimensions, i.e. 48 = 12*4. I
> > expect to get one average output each month during my 4 year simulation,
> but
> > by looking at the *.nc file, the number of iteration at which diagnostics
> > are made correpond to 1 diagnostics each year, and 1 diagnostic at the 12
> > previous iterations, but not 1 diagnostic each month.
> > I did some test but I did not find out the answer. Did anyone have
> asolution to
> > fix my problem?
> >
> > Many thanks
> >
> > Quentin
> >
> > PS : I copy a part of the file data.diagnostics below :
> >
> >   frequency(1) = 31104000.,
> >   frequency(1) = 1555200000.,
> > # frequency(1) = 2592000.,
> >    filename(1) = 'DiagOcnEta',
> >    fields(1,1) = 'ETAN    ',
> >  averagingFreq(1) = 2592000.,
> >    repeatCycle(1) = 12,
> >
> >   frequency(2) = 31104000.,
> >   frequency(2) = 1555200000.,
> > # frequency(2) = 2592000.,
> >    filename(2) = 'DiagOcnTave',
> >    fields(1,2) = 'THETA   ','SALT    ','PHIHYD  ','CONVADJ ',
> > #                'UVELSQ  ','VVELSQ  ','UV_VEL_C','THETASQ ',
> > #                'WVELTH  ','WVELSLT ',
> >  averagingFreq(2) = 2592000.,
> >    repeatCycle(2) = 12,
> >
> >
> > --
> > Quentin Jamet
>
> > _______________________________________________
> > MITgcm-support mailing list
> > MITgcm-support at mitgcm.org
> > http://mitgcm.org/mailman/listinfo/mitgcm-support
>
>
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-- 
Quentin Jamet
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