Dear all,
I finally got time to open a TRAC ticket on that subject:
https://cf-pcmdi.llnl.gov/trac/ticket/79
All interested parties are very welcome to join the discussion and we can hopefully converge to an agreement for implementation in the convention.
Cheers,
Thomas
----- Original Message -----
> Dear Randy
>
> > In the problem domain I am working, there are multiple related data
> > variables in the same coordinate space for which the quality flags
> > are the same. It would be a stretch to call these multiple related
> > data variables "vectors" in the true mathematical sense.
>
> > Given this looser definition of "vector", the notion of having
> > standard names associated with the umbrella data variable does not
> > seem to make sense as different projects would potentially have
> > project-unique groupings of variables where it is desirable to share
> > quality flags, etc.
>
> I agree. The discussions of Thomas's umbrella variable have touched on
> this
> point but it doesn't seem to suit the purpose of providing a single
> quality
> flag variable for an arbitrary selection of geophysical quantities.
> Hence I
> think the idea of generalising the standard_name att to the format
> standard_name [standard_name ...] modifier
> i.e. permitting more than two words in it would be more suitable and
> general-purpose. The main motivation for the umbrella variable is
> different
> viz. to identify a group of data variables which together constitute a
> single
> higher-level geophysical quantity.
>
> Best wishes
>
> Jonathan
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--
==========================================
Thomas Lavergne
Norwegian Meteorological Institute
P.O.BOX 43, Blindern, NO-0313 OSLO, Norway
Phone: (+47) 22963364 Fax: (+47) 22963380
Email: t.lavergne at met.no
OSISAF HL Portal: http://osisaf.met.no
==========================================
Received on Wed Feb 22 2012 - 03:44:46 GMT
