Dear Jonathan, Fair enough - I'm happy with that.
All the best, David ---- Original message from Jonathan Gregory (01PM 31 Mar 16) > Date: Thu, 31 Mar 2016 13:28:48 +0100 > From: Jonathan Gregory <j.m.greg...@reading.ac.uk> > To: cf-metadata@cgd.ucar.edu > Subject: Re: [CF-metadata] Standard attributes for anomaly > User-Agent: Mutt/1.5.20 (2009-12-10) > > Dear David > > A standard name modifier is the mechanism I would suggest too if we needed > one, > but on the other hand (a) in practice the standard name modifiers have caused > complications, discussed in trac tickets, which makes it a less attractive > mechanism, and (b) there are currently only five anomaly standard names, so > this doesn't presently seem to be a need which requires a special mechanism. > By comparison we have hundreds of standard names involving chemical species, > all individually proposed, and so far that has worked all right. > > Best wishes > > Jonathan > > .----- Forwarded message from David Hassell <d.c.hass...@reading.ac.uk> ----- > > > Date: Thu, 31 Mar 2016 11:17:11 +0100 > > From: David Hassell <d.c.hass...@reading.ac.uk> > > To: Jonathan Gregory <j.m.greg...@reading.ac.uk> > > CC: cf-metadata@cgd.ucar.edu > > Subject: Re: [CF-metadata] Standard attributes for anomaly > > User-Agent: Mutt/1.5.21 (2010-09-15) > > > > 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.greg...@reading.ac.uk> > > > To: cf-metadata@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.mendelss...@noaa.gov> ----- > > > > > > > Date: Wed, 30 Mar 2016 10:10:34 -0700 > > > > From: Roy Mendelssohn - NOAA Federal <roy.mendelss...@noaa.gov> > > > > To: Jonathan Gregory <j.m.greg...@reading.ac.uk> > > > > CC: cf-metadata@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.greg...@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.mendelss...@noaa.gov> ----- > > > > > > > > > >> Date: Wed, 30 Mar 2016 08:16:52 -0700 > > > > >> From: Roy Mendelssohn - NOAA Federal <roy.mendelss...@noaa.gov> > > > > >> To: CF metadata <cf-metadata@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.mendelss...@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@cgd.ucar.edu > > > > >> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > > > > > > > > > > ----- End forwarded message ----- > > > > > _______________________________________________ > > > > > CF-metadata mailing list > > > > > CF-metadata@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.mendelss...@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 ----- > > > _______________________________________________ > > > CF-metadata mailing list > > > CF-metadata@cgd.ucar.edu > > > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > > > > > > -- > > 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.hass...@reading.ac.uk > > ----- End forwarded message ----- > _______________________________________________ > CF-metadata mailing list > CF-metadata@cgd.ucar.edu > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- 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.hass...@reading.ac.uk _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
