Would this be the first time the CF conventions use a data structure that
cannot be represented in netCDF-3?
On Mon, Aug 15, 2016 at 3:46 AM, Jonathan Gregory <j.m.gregory at reading.ac.uk
> wrote:
> Dear Karl
>
> I think that allowing strings as an alternative to char arrays is a natural
> extension and should not be problematic since the information content is
> the
> same. It's good to hear from Jim that the cf-checker is happy with it. We
> have discussed this before. As you say, the CF convention does not allow
> for
> it at the moment, and so a change is needed. This depends on someone
> carefully
> going through the document to see what might need to be changed to include
> this alternative.
>
> Best wishes
>
> Jonathan
>
> ----- Forwarded message from Jim Biard <jbiard at cicsnc.org> -----
>
> > Date: Fri, 12 Aug 2016 16:46:18 -0400
> > From: Jim Biard <jbiard at cicsnc.org>
> > To: "cf-metadata at cgd.ucar.edu" <cf-metadata at cgd.ucar.edu>
> > Subject: Re: [CF-metadata] string variables and netCDF4
> >
> > Karl,
> >
> > The string type passes the cf checker as long as it is an ASCII string.
> It
> > is possible to make a unicode string, and that fails. So, from a
> practical
> > perspective, it is fine.
> >
> > Grace and peace,
> >
> > Jim
> >
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> >
> > On Fri, Aug 12, 2016 at 12:31 PM, Karl Taylor <taylor13 at llnl.gov> wrote:
> >
> > > Hi all,
> > >
> > > I have a question from Robert Pincus that I don't know that answer to:
> > >
> > > Is it ok to use a one-dimensional ?string? variable instead of a
> > > two-dimensional character variable to encode expt_label? This might be
> > > asking whether it?s ok to use netCDF4, which I certainly hope is the
> case.
> > >
> > > He's defining an array of "labels".
> > >
> > > The conventions document states: "NetCDF does not support a character
> > > string type, so these must be represented as character arrays."
> > >
> > > so my take on this is that a one-dimensional array of "string"
> variables
> > > would not be permitted. In general do we forbid use of any of the new
> > > netCDF4 structures? (I guess yes).
> > >
> > > thanks,
> > > Karl
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> > >
>
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>
> ----- End forwarded message -----
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--
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