Dear all
I agree with Seth. There is no requirement about how the grid point values
should relate to the cell bounds.
Cheers
Jonathan
----- Forwarded message from Seth McGinnis <mcginnis at ucar.edu> -----
> From: Seth McGinnis <mcginnis at ucar.edu>
> To: Jim Biard <jim.biard at noaa.gov>, "cf-metadata at cgd.ucar.edu"
> <CF-metadata at cgd.ucar.edu>
> X-Mailer: CommuniGate Pro WebUser v6.0.1
> Date: Mon, 18 Mar 2013 15:21:44 -0600
> Subject: Re: [CF-metadata] how to specify time dimension for monthly averages
>
> Um, I don't think that's true, actually. That's probably a sensible convention
> to follow in many cases, but I don't believe it's a CF requirement. (Or at
> least, I never noticed it. If it is in there, we need to edit the spec to make
> it more prominent!)
>
> Cheers,
>
> --Seth
>
> On Mon, 18 Mar 2013 08:28:08 -0400
> Jim Biard <jim.biard at noaa.gov> wrote:
> >Andreas,
> >
> >The other thing to keep in mind regarding the time bounds (and other bounds
> >variables, such as for X and Y or longitude and latitude) is that the upper
> >bound is exclusive. The upper bound value is greater than the values in the
> >interval.
> >
> >Grace and peace,
> >
> >Jim
> >
> >Jim Biard
> >Research Scholar
> >Cooperative Institute for Climate and Satellites
> >Remote Sensing and Applications Division
> >National Climatic Data Center
> >151 Patton Ave, Asheville, NC 28801-5001
> >
> >jim.biard at noaa.gov
> >828-271-4900
> >
> >On Mar 15, 2013, at 5:45 PM, Andreas Hilboll <lists at hilboll.de> wrote:
> >
> >> Hi,
> >>
> >> I want to store monthly averages of gridded satellite measurements of
> >> atmospheric trace gas columns. I'm wondering how I should specify the
> >> time axis, i.e. set the time for each monthly aggregate to the first, or
> >> the central, or the last day of the month. How should I specify that the
> >> values are actually monthly averages?
> >>
> >> Thanks for your ideas!
> >> Cheers, Andreas.
> >> _______________________________________________
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> >> CF-metadata at cgd.ucar.edu
> >> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
> >
>
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----- End forwarded message -----
Received on Tue Mar 19 2013 - 02:43:53 GMT
