[MITgcm-support] Ice thickness category diagnostics

[Martin Losch]

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
>> 
>> 
>> 
>> 
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>> 
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> 
> 
> -- 
> 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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