[MITgcm-devel] netcdf units in diagnostics pkg

[Ed Hill]

On Fri, 23 May 2008 15:05:22 +0200 Martin Losch wrote:
> 
> I now learned from
> <http://cf-pcmdi.llnl.gov/documents/cf-conventions/
> 1.0/cf-conventions.html> that "missing_value" is now deprecated.
> Should we simply replace it by a _FillValue (that's really trivial at
> this point).
> 
> Vertical coordinates in diagnostics: I agree, it looks very  
> complicated, but shouldn't it be worked out anyway? Again, it's hard  
> to discuss the details via email, and I assume that Ed does not have  
> enough time to really go into this, but the current code (within  
> "NEEDS_WORK" ifdefs seem like a good starting point to have  
> reasonable vertical coordinates at least for the "regular" variables  
> that are on scalar points, UVEL/VVEL/WVEL-like or 2D variables such  
> as ETAN, SI_Fract, etc.
> Couldn't I just start using these coordinates Z* for the variables  
> that make sense and not define any coordinates for those variables  
> where it does not make sense?


Hi Martin,

COARDS is ancient and CF is being updated.  If you want to produce
netCDF files that are maximally useful then its a good idea to target
the upcoming standards.

This would be the perfect time for Chris to step in and describe the
current status of the CF conventions and the ESMF "gridspec" (grids
composed of mosaics of grids) extensions that are being developed:

http://www.earthsystemcurator.org/


If MITgcm creates netCDF per-tile files that are compatible with the
"gridspec"-based tools currently being developed:

http://www.earthsystemcurator.org/index.php?option=com_content&task=view&id=22&Itemid=37

[and if the "gridspec" tools actually work] then there are a number
of post-processing (e.g., regridding, flux-at-arbitrary-boundaries,
etc.) calculations that will be a lot easier to perform.

Ed

-- 
Edward H. Hill III, PhD  |  ed at eh3.com  |  http://eh3.com/
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