Hi Paul,
From the CF Checker point of view, it does a comparison to ensure that
the units specified in the netcdf file are dimensionally equivalent to
those specified for the standard_name (if specified) in the Standard
Name table. For the standard_name "depth" the canonical units defined
are metres. Hence the error message you received. Hopefully, someone
will be able to advise if there is a more appropriate standard_name
available, which better matches your needs.
Regards,
Rosalyn.
On 06/07/11 01:34, Paul.Durack at csiro.au wrote:
> Hi there Folks..
>
> Just wondering about the use of the vertical coordinate depth, and in particular "pressure" with the units "decibar"..
>
> Seems to me that the conformance checker (v2.0.2) available at http://puma.nerc.ac.uk/cgi-bin/cf-checker.pl doesn't much like "pressure" complaining that the units "decibar" is not consistent with those in the standard_name (v1.5/v17 table:
>
> <file>
> double depth(depth) ;
> depth:units = "decibar" ;
> depth:units_long = "decibar (pressure)" ;
> depth:long_name = "depth" ;
> depth:standard_name = "depth" ;
> depth:axis = "Z" ;
> depth:positive = "down" ;
> depth:bounds = "depth_bnds" ;
>
> <checker output>
> Checking against CF version 1.5...
> ...
> Using CF Checker Version 2.0.2
> Using Standard Name Table Version 17 (2011-03-24T11:54:30Z)
> Using Area Type Table Version 1 (5 December 2008)
> ...
> ------------------
> Checking variable: depth
> ------------------
> ERROR (3.1): Units are not consistent with those given in the standard_name table.
>
>
>
> I'd appreciate some feedback if I have things around the wrong way here..
>
> Cheers,
>
> P
>
> _______________________________________________
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> CF-metadata at cgd.ucar.edu
> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
--
Rosalyn Hatcher
NCAS Computational Modelling Services
Dept. of Meteorology, University of Reading,
Earley Gate, Reading. RG6 6BB
Email: r.s.hatcher at reading.ac.uk Tel: +44 (0) 118 378 6016
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