[MITgcm-support] Ice thickness category diagnostics

[David Huard]

Indeed, I use mnc_use_outdir=.true.

I'm using separate directories for outputs because the two runs were
conceptually different: one driven by JRA and the other by GFDL and I
wanted to make sure I kept both apart.

What about the ice thickness categories ? Is there a way to get those
fields individually rather than as a bulk concentration ?




On Fri, Feb 8, 2013 at 8:13 AM, Martin Losch <Martin.Losch at awi.de> wrote:

> Hi David,
>
> did you try to keep the mnc output in the working directory (
> mnc_use_outdir=.false., but, again, you need to either remove grid.*.nc or
> use debugLevel=-1). Do you think it is related the mnc_outdir_str? I run
> models with  mnc_use_outdir=.false., all the time and restarts are not a
> problem at all.
>
> Martin
>
> On Feb 8, 2013, at 2:07 PM, David Huard <david.huard at gmail.com> wrote:
>
> > To clarify, the situation is the following:
> >
> > I ran the model once from timestep0 to timestep N with results going
> into results_0. Pickup files are stored with mdsio, model outputs are
> stored in netCDF. All good.
> >
> > I'm then using a pickup file to restart the model at the timestep N,
> changing the output directory to results_N.
> > At this point, the directory results_N is empty. When I launch the
> model, nothing happens. No STDOUT, no STDERR, no output written in
> results_N.
> >
> > To get the model started, it seems like I need to launch the  model from
> timestep0 for one timestep, so it creates the grid files in results_N. Then
> I can set timestep0 to N and launch the real run.
> >
> >
> >
> >
> > On Fri, Feb 8, 2013 at 3:44 AM, Martin Losch <Martin.Losch at awi.de>
> wrote:
> > Hi David, and Manfredi,
> >
> > I am not sure if I understand the problem, but ---as a feature--- mnc
> does not allow overwriting old netcdf files. In a "production-run" with
> many restarts, you can still have the output in the same (working
> directory) if you set the debugLevel = -1. This way the grid*.nc files are
> only written when nIter0 = 0. All other mnc-files are unique because they
> have the value of nIiter0. This works very well for me.
> >
> > I have never seen the model wait for anything except for the file
> system, so I suspect that your problems are connected to that.
> >
> > BTW, as a general rule, I prefer to not use mnc for the pickup files.
> >
> > I can offer to put the noleap option into the repository, if it is
> general enough.
> >
> > Martin
> >
> >
> > On Feb 8, 2013, at 3:54 AM, David Huard <david.huard at gmail.com> wrote:
> >
> > > Hi Manfredi,
> > >
> > > This is what I've done, but if the grid.xxx.nc files are not in this
> directory, the model just waits forever. This was on a model version
> checkpoint63r, so maybe it has been fixed.
> > >
> > >
> > > On Thu, Feb 7, 2013 at 9:47 PM, Manfredi Manizza <mmanizza at ucsd.edu>
> wrote:
> > > David,
> > >
> > > for the restart problem using MNC you have to mkdir another folder
> where to store
> > > the new output and update the new name in data.mnc.
> > >
> > > This is what I do and at least this used work to me....
> > >
> > > Manfredi
> > >
> > >
> > > On 02/07/2013 06:32 PM, David Huard wrote:
> > >> Hi all,
> > >>
> > >> I'm doing a run with the MITgcm ocean+ice Arctic configuration driven
> by the GFDL GCM. Things have been pretty easy to set up, and I'd like to
> offer my kudos to the devs.
> > >>
> > >> I couldn't find in the docs how to output the sea ice concentration
> of the different sea ice thickness categories. How would I do that ?
> > >>
> > >> Also, I noticed that using MNC, if timestep is not zero but the
> output directory is empty, as would be the case for a restart, the model
> just hangs there forever without any STDOUT or STDERR files being created.
> > >>
> > >> Finally, I added a noleap option to the calendar package to support
> the GCM calendar. I could send the diff if there is interest.
> > >>
> > >> Cheers,
> > >>
> > >> David Huard, PhD
> > >>
> > >>
> > >>
> > >>
> > >> _______________________________________________
> > >> MITgcm-support mailing list
> > >>
> > >> MITgcm-support at mitgcm.org
> > >> http://mitgcm.org/mailman/listinfo/mitgcm-support
> > >
> > >
> > > --
> > > Dr. Manfredi Manizza
> > > Geosciences Research Division
> > > Scripps Institution of Oceanography
> > > University of California San Diego
> > > 9500 Gilman Drive La Jolla, CA 92093-0244
> > > email :
> > > mmanizza at ucsd.edu
> > >
> > > tel   :
> > > +1-858-534-7094
> > >
> > > web   :
> > > http://bluemoon.ucsd.edu/mmanizza/
> > >
> > > _______________________________________________
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> > > MITgcm-support at mitgcm.org
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> > >
> > >
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> >
> >
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