[CF-metadata] extended use of flag_values and flag_meanings

Burkhardt Rockel Burkhardt.Rockel at gkss.de
Fri Nov 11 04:59:18 MST 2005


That's a good solution from my point of view.

Regards
Burkhardt


Am 11.11.2005 um 11:02 schrieb Bryan Lawrence:

>
> Hi Jonathan, Rurkhardt
>
> I think this is an issue that will come to us more and more ... so  
> coming up
> with a standard solution makes a lot of sense.
>
> Firstly, I agree the file should be self describing, and I think  
> the solution
> you propose will be compact and appropriate. However I would  
> recommend that
> we *eventually* standardise the string values *and* the numerical  
> encoding
> values (ie the standard name system would have to include the  
> values as well,
> and the numerical corrrespondents).
>
> In doing so we should follow the ISO extension model for  
> enumeriations, that
> is, not allow users to add their own additional enumerations (if  
> they have
> extra classes of land cover for example that are not in the  
> standard), but
> rather allow users to add their own long_names and enemerations  
> which could
> eventually become standardised ...
>
> One might argue that if we have standardised the numerical  
> encodings and the
> values in the standard name system then we don't need to repeat it  
> in the
> file. However, I think it is a level of redundancy which costs very  
> little,
> makes the software easier to build, and provides a lot of future  
> proofing, in
> that folk can lay down files which use their own encodings but also  
> have some
> hope of different folks doing things that are comparable (in time).
>
> Meanwhile, until we have the new standard name person in post, I  
> think your
> proposed solution is workable and most of what I suggest above can  
> be put in
> hold (until someone has the time to make it less incoherent).
>
> Cheers
> Bryan
>
>
-----------
Dr. Burkhardt Rockel
GKSS Forschungszentrum
Max-Planck-Strasse
D-21502 Geesthacht
Germany
Phone: +49 4152 87 2008
Fax: +49 4152 87 2020
Email: Burkhardt.Rockel at gkss.de
www: http://coast.gkss.de
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