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 > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- ========================================== Thomas Lavergne Norwegian Meteorological Institute P.O.BOX 43, Blindern, NO-0313 OSLO, Norway Phone: (+47) 22963364 Fax: (+47) 22963380 Email: [email protected] OSISAF HL Portal: http://osisaf.met.no ========================================== _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
