Hello,
Could a new standard name modifier of "anomaly" be created for this
case?
http://cfconventions.org/cf-conventions/v1.6.0/cf-conventions.html#standard-name-modifiers
This example would then look like:
mean_sst:standard_name = "sea_surface_foundation_temperature anomaly" ;
As for some existing standard modifiers, the units of the modified
standard name would have to be dimensionally equivalent to those for
the unmodified standard name.
This seems poosible within the current conventions, and in their
spirit, I think.
All the best,
David
---- Original message from Jonathan Gregory (06PM 30 Mar 16)
> Date: Wed, 30 Mar 2016 18:35:52 +0100
> From: Jonathan Gregory <j.m.gregory at reading.ac.uk>
> To: cf-metadata at cgd.ucar.edu
> Subject: Re: [CF-metadata] Standard attributes for anomaly
> User-Agent: Mutt/1.5.20 (2009-12-10)
>
> Dear Roy
>
> Once this pattern is established, it is unlikely that there would be any
> objection to proposals for new X_anomaly (or anomaly_in_X) standard names.
> When new names are proposed with existing patterns applied to existing vocab,
> it's hardly ever a problem, but standard names are never added to the table
> automatically or assumed to exist. They have to be proposed, to prevent the
> possibility of something nonsensical being added.
>
> If we were really flooded with anomaly names, then it would be better to
> consider putting the "anomaly" indicator somewhere else, requiring a change
> to the convention to be devised. That is possible, but it has not threatened
> to happen yet, and we don't do things unless we need to!
>
> Best wishes
>
> Jonathan
>
> ----- Forwarded message from Roy Mendelssohn - NOAA Federal <roy.mendelssohn at noaa.gov> -----
>
> > Date: Wed, 30 Mar 2016 10:10:34 -0700
> > From: Roy Mendelssohn - NOAA Federal <roy.mendelssohn at noaa.gov>
> > To: Jonathan Gregory <j.m.gregory at reading.ac.uk>
> > CC: cf-metadata at cgd.ucar.edu
> > Subject: Re: [CF-metadata] Standard attributes for anomaly
> > X-Mailer: Apple Mail (2.3124)
> >
> > Hi Jonathan:
> >
> > It strikes me that anomalies are pretty common, and the in the long-run it would be easy to have ?anomaly? added to the approved transformations, so that one can just take a standard name and append anomaly somewhere to have a new valid standard name without having to seek approval.
> >
> > Perhaps I am missing something, but if I were to propose anything it would be what I state above.
> >
> > -Roy
> >
> > > On Mar 30, 2016, at 8:27 AM, Jonathan Gregory <j.m.gregory at reading.ac.uk> wrote:
> > >
> > > Dear Roy
> > >
> > > There are a handful of standard names for anomalies of the form X_anomaly,
> > > where X is some other standard name. You could propose a new one for this.
> > > It could be sea_surface_foundation_temperature_anomaly, like the existing ones,
> > > but if that's too hard to understand,
> > > anomaly_in_sea_surface_foundation_temperature
> > > might be clearer.
> > >
> > > "anomaly" could be handled by some other new CF convention if it was needed
> > > for hundreds of quantities. This is of course possible, but so far there have
> > > been few requests for anomaly names, so it's easier and sufficient to create
> > > new standard names for them, I think.
> > >
> > > Best wishes
> > >
> > > Jonathan
> > >
> > > ----- Forwarded message from Roy Mendelssohn - NOAA Federal <roy.mendelssohn at noaa.gov> -----
> > >
> > >> Date: Wed, 30 Mar 2016 08:16:52 -0700
> > >> From: Roy Mendelssohn - NOAA Federal <roy.mendelssohn at noaa.gov>
> > >> To: CF metadata <cf-metadata at cgd.ucar.edu>
> > >> Subject: [CF-metadata] Standard attributes for anomaly
> > >> X-Mailer: Apple Mail (2.3124)
> > >>
> > >> Hi All:
> > >>
> > >> We have been given files related o sea surface temperature. The observed value has the attributes:
> > >>
> > >> analysed_sst:long_name = "analysed sea surface temperature" ;
> > >> analysed_sst:standard_name = "sea_surface_foundation_temperature" ;
> > >>
> > >>
> > >> and the climatology has the attributes:
> > >>
> > >> mean_sst:long_name = "climatological mean sea surface temperature" ;
> > >> mean_sst:standard_name = "sea_surface_foundation_temperature" ;
> > >>
> > >> What would be the proper attributes for the anomaly calculated from these?
> > >>
> > >> Thanks,
> > >>
> > >> -Roy
> > >>
> > >> **********************
> > >> "The contents of this message do not reflect any position of the U.S. Government or NOAA."
> > >> **********************
> > >> Roy Mendelssohn
> > >> Supervisory Operations Research Analyst
> > >> NOAA/NMFS
> > >> Environmental Research Division
> > >> Southwest Fisheries Science Center
> > >> ***Note new address and phone***
> > >> 110 Shaffer Road
> > >> Santa Cruz, CA 95060
> > >> Phone: (831)-420-3666
> > >> Fax: (831) 420-3980
> > >> e-mail: Roy.Mendelssohn at noaa.gov www: http://www.pfeg.noaa.gov/
> > >>
> > >> "Old age and treachery will overcome youth and skill."
> > >> "From those who have been given much, much will be expected"
> > >> "the arc of the moral universe is long, but it bends toward justice" -MLK Jr.
> > >>
> > >> _______________________________________________
> > >> CF-metadata mailing list
> > >> CF-metadata at cgd.ucar.edu
> > >> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
> > >
> > > ----- End forwarded message -----
> > > _______________________________________________
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> > > CF-metadata at cgd.ucar.edu
> > > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
> >
> > **********************
> > "The contents of this message do not reflect any position of the U.S. Government or NOAA."
> > **********************
> > Roy Mendelssohn
> > Supervisory Operations Research Analyst
> > NOAA/NMFS
> > Environmental Research Division
> > Southwest Fisheries Science Center
> > ***Note new address and phone***
> > 110 Shaffer Road
> > Santa Cruz, CA 95060
> > Phone: (831)-420-3666
> > Fax: (831) 420-3980
> > e-mail: Roy.Mendelssohn at noaa.gov www: http://www.pfeg.noaa.gov/
> >
> > "Old age and treachery will overcome youth and skill."
> > "From those who have been given much, much will be expected"
> > "the arc of the moral universe is long, but it bends toward justice" -MLK Jr.
> >
>
> ----- End forwarded message -----
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> CF-metadata at cgd.ucar.edu
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--
David Hassell
National Centre for Atmospheric Science (NCAS)
Department of Meteorology, University of Reading,
Earley Gate, PO Box 243,
Reading RG6 6BB, U.K.
Tel : +44 118 3785613
E-mail: d.c.hassell at reading.ac.uk
Received on Thu Mar 31 2016 - 04:17:11 BST
