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[CF-metadata] udunits 1 or 2 for CF?

From: Andrew Clegg <ancl>
Date: Thu, 04 Mar 2010 15:06:01 +0000

Bruno PIGUET wrote:
> Le mercredi 03 mars 2010 ? 15:10 +0000, Andrew Clegg a ?crit :
>
>> [...] In udunits1, I used 'ukg m^-3', which
>> udunits2 rejects as invalid. udunits2 accepts 'mg m^-3' (which is much
>> better!), but udunits1 interprets this as to do with gravity. Because of
>> this, I can't include a unit string which is generally compatible with
>> udunits...
>>
>
> As a personal choice, to deal with this problem, I use the full word
> "gram" with udunits-1. And "mgram" is accepted as milligram, which I
> find better than ukg, which i would never have thought of by myself.
>
> I guess (can't test it by now) that "mgram" should also be accepted by
> udunits-2. Is it an option for you ?
>
> Bruno.
>
I never thought of using the full word 'gram' - I've just checked and
'gram' and 'mgram' work on udunits-2 as well. Thanks.

However, I'm still concerned that there are differences between the 2
versions, and that this should be at least noted in the conventions.
Other people in the future will probably have the same problem, and it
would be nice to have a definitive answer. My (strong) personal
preference is to say that all unit strings should be correct when
interpreted with udunits-2, rather than relying on a set of 'hacks' to
ensure compatibility between the 2.

Cheers,
Andrew

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Received on Thu Mar 04 2010 - 08:06:01 GMT

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