Dear Roy
I understand the need but I tend to think this would not be an appropriate
use of the Conventions attribute, which is a general netCDF attribute, not
specific to CF, and refers to files. I do appreciate the logical similarity
but I would have thought it better to define something more specific in CF
for this purpose.
If this is a need which several users have and is required for exchange of
data, then it is reasonable to propose to add something to CF. Since it's
an extra piece of information referring to flags, maybe an attribute such as
flag_convention_name would work? We could make it a requirement that this
attribute was allowed only if the variable had flag_meanings as well, to
prevent its being used as a substitute for spelling out what the flags mean
(as is necessary for the file to be self-describing).
Best wishes
Jonathan
----- Forwarded message from "Lowry, Roy K." <rkl at bodc.ac.uk> -----
> From: "Lowry, Roy K." <rkl at bodc.ac.uk>
> To: "cf-metadata at cgd.ucar.edu" <cf-metadata at cgd.ucar.edu>
> Date: Wed, 23 Jan 2013 08:20:49 +0000
> CC: Michele FICHAUT <Michele.Fichaut at ifremer.fr>
> Subject: [CF-metadata] Usage of the 'Conventions' attribute
>
> Dear All,
>
> Currently, the 'Conventions' attribute is restricted to be a global attribute. There is currently a requirement to label multiple QC flag variables following different conventions with their source convention and having the 'Conventions' attribute as a variable attribute for these non-co-ordinate variables would seem a convenient and consistent mechanism. Is there any support for or objections to this suggestion?
>
> Cheers, Roy.
>
> Please note that I now work part-time from Tuesday to Thursday. E-mail response on other days is possible but not guaranteed!
>
>
>
>
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Received on Wed Jan 23 2013 - 18:23:33 GMT
