Thank you Alison! We (Kevin Marsh and myself) are happy with the amended definitions you proposed.
only one minor tweak in the last sentence of the "steric_change_in_sea_surface_height" definition: I would add "_height" at the end of "steric_change_in_sea_surface". I assume it was intended that way but "_height" got somehow truncated. Best wishes, Sébastien ----- Original Message ----- From: "alison pamment" <alison.pamm...@stfc.ac.uk> To: "sebastien villaume" <sebastien.villa...@ecmwf.int> Cc: cf-metadata@cgd.ucar.edu, "Jonathan Gregory" <j.m.greg...@reading.ac.uk> Sent: Thursday, 8 June, 2017 15:28:25 Subject: RE: New standard names for NEMO ocean model output Dear Sebastien, Thank you for once again bringing this back to the list. I agree that the discussion seems to have settled on the "steric" names rather than the longer versions. We need to have definitions, so I've modified the text I suggested previously. We now have: steric_change_in_sea_surface_height (m) ' "Sea surface height" is a time-varying quantity. The steric change in sea surface height is the change in height that a water column of standard temperature T=0°C and practical salinity S=35.0 would undergo when its temperature and salinity are changed to the observed values. The sum of the quantities with standard names thermosteric_change_in_sea_surface_height and halosteric_change_in_sea_surface_height is the total steric change in the water column height, which has the standard name of steric_change_in_sea_surface_height. The sum of the quantities with standard names sea_water_mass_per_unit_area_expressed_as_thickness and steric_change_in_sea_surface is the total thickness of the sea water column.' halosteric_change_in_sea_surface_height (m) ' "Sea surface height" is a time-varying quantity. The halosteric change in sea surface height is the change in height that a water column of standard practical salinity S=35.0 would undergo when its salinity is changed to the observed value. The sum of the quantities with standard names thermosteric_change_in_sea_surface_height and halosteric_change_in_sea_surface_height is the total steric change in the water column height, which has the standard name of steric_change_in_sea_surface_height.' thermosteric_change_in_sea_surface_height (m) ' "Sea surface height" is a time-varying quantity. The thermosteric change in sea surface height is the change in height that a water column of standard temperature T=0°C would undergo when its temperature is changed to the observed value. The sum of the quantities with standard names thermosteric_change_in_sea_surface_height and halosteric_change_in_sea_surface_height is the total steric change in the water column height, which has the standard name of steric_change_in_sea_surface_height.' If you are happy with these then the names can be accepted and added at the next update of the standard name table on 26th June. Best wishes, Alison ------ Alison Pamment Tel: +44 1235 778065 Centre for Environmental Data Analysis Email: alison.pamm...@stfc.ac.uk STFC Rutherford Appleton Laboratory R25, 2.22 Harwell Campus, Didcot, OX11 0QX, U.K. > -----Original Message----- > From: CF-metadata [mailto:cf-metadata-boun...@cgd.ucar.edu] On Behalf Of > Sebastien Villaume > Sent: 08 June 2017 13:09 > To: Sebastien Villaume > Cc: cf-metadata@cgd.ucar.edu; Jonathan Gregory > Subject: Re: [CF-metadata] New standard names for NEMO ocean model output > > Dear all, > > since nobody is raising any more issues or showing strong feelings in the > choice of final standard names, I propose to adopt > > steric_change_in_sea_surface_height > halosteric_change_in_sea_surface_height > thermosteric_change_in_sea_surface_height > > > We will start producing variables with these standard names in the coming > weeks. > > thanks, > /Sébastien > > ----- Original Message ----- > From: "Sebastien Villaume" <sebastien.villa...@ecmwf.int> > To: "Lowry, Roy K." <r...@bodc.ac.uk> > Cc: cf-metadata@cgd.ucar.edu, "Jonathan Gregory" > <j.m.greg...@reading.ac.uk> > Sent: Tuesday, 30 May, 2017 09:42:54 > Subject: Re: [CF-metadata] New standard names for NEMO ocean model output > > Dear all, > > we would like to start using the remaining 3 standard names for NEMO output. > We only need to reach a consensus on the standard names we would like to > have: > > change_in_sea_surface_height_due_to_change_in_sea_water_density > change_in_sea_surface_height_due_to_change_in_sea_water_practical_salinit > y > change_in_sea_surface_height_due_to_change_in_sea_water_temperature > > or > > steric_change_in_sea_surface_height > halosteric_change_in_sea_surface_height > thermosteric_change_in_sea_surface_height > > as I mentioned before, I don't have a strong preference, I only need a > decision > so that we can using them. > > thanks, > /Sébastien > > ----- Original Message ----- > From: "Lowry, Roy K." <r...@bodc.ac.uk> > To: "Jonathan Gregory" <j.m.greg...@reading.ac.uk>, "Sebastien Villaume" > <sebastien.villa...@ecmwf.int> > Cc: cf-metadata@cgd.ucar.edu > Sent: Thursday, 27 April, 2017 09:48:42 > Subject: Re: New standard names for NEMO ocean model output > > Dear All, > > > My preference (but not insistence) would be for the more compact versions > providing steric, halosteric and thermosteric are clearly described in the > definitions. This is cleaner, less confusing, consistent with past practice, > more > likely to be discovered and readily understandable by those who are likely to > need to use the Standard Names. > > > If this is unacceptable to anybody then I'm in total agreement with Jonathan > that we need to be consistent with existing Standard Names incorporating > 'sterics', which means including both forms and aliasing them. > > > Note that established practice over the past decade has caused 'alias' to come > to mean 'deprecated and replaced by' rather than 'synonym'. Consequently, if > going for the option of adding both forms and replacing the existing 'sterics' > then the 'sterics' need to be the 'deprecates' and the 'due-tos' need to be > the > replacements in all cases. > > > Cheers, Roy. > > > Please note that I partially retired on 01/11/2015. I am now only working 7.5 > hours a week and can only guarantee e-mail response on Wednesdays, my day > in the office. All vocabulary queries should be sent to enquir...@bodc.ac.uk. > Please also use this e-mail if your requirement is urgent. > > > ________________________________ > From: CF-metadata <cf-metadata-boun...@cgd.ucar.edu> on behalf of > Sebastien Villaume <sebastien.villa...@ecmwf.int> > Sent: 27 April 2017 09:16 > To: Jonathan Gregory > Cc: cf-metadata@cgd.ucar.edu > Subject: Re: [CF-metadata] New standard names for NEMO ocean model output > > Dear all, > > I am not a domain expert, I can't really grasp which set of names is more > suitable. As a non expert, I would favour the first set because it is more > explicit. > > That said, I will follow what the domain experts and/or the standard names > experts would recommend. Please let us know so we can agree and start using > these names. > > > Best wishes, > /Sébastien > > ----- Original Message ----- > From: "Jonathan Gregory" <j.m.greg...@reading.ac.uk> > To: cf-metadata@cgd.ucar.edu > Sent: Wednesday, 26 April, 2017 22:36:14 > Subject: Re: [CF-metadata] New standard names for NEMO ocean model output > > Dear Sebastien > > > @Jonathan: what would be the standard names if we were using > "_due_to_change_in_" ? Since it is a "change" of height due to a "change" of a > physical property, we end up with: > > > > change_in_sea_surface_height_due_to_change_in_sea_water_density > > > change_in_sea_surface_height_due_to_change_in_sea_water_practical_salinit > y > > change_in_sea_surface_height_due_to_change_in_sea_water_temperature > > Yes, I agree, that would be right. > > > It is fine for me but I understand it could look awkward to some > > users/experts. > It is however nicely verbose to help understand what those parameters are. > > > > If we were removing "_above_sea_floor" from the names proposed by Alison: > > > > steric_change_in_sea_surface_height > > halosteric_change_in_sea_surface_height > > thermosteric_change_in_sea_surface_height > > > > it is more compact and elegant but it could be a bit cryptic to non-experts. > > Yes, I agree with this too. As I mentioned, thermosteric and steric do appear > in existing names (one each), so we should either rename those with due_to, or > use the steric terms here, for consistency. > > > I am fine with both formulations and I agree with Kevin, we could keep both > versions and make aliases. > > I am fine too with either of them, but not with aliases for this purpose. We > use aliases to preserve backwards-compatibility when we change our minds, > not > to provide synonyms in the first place. > > Best wishes > > Jonathan > _______________________________________________ > CF-metadata mailing list > CF-metadata@cgd.ucar.edu > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > CF-metadata Info Page - > mailman.cgd.ucar.edu<http://mailman.cgd.ucar.edu/mailman/listinfo/cf- > metadata> > mailman.cgd.ucar.edu > This is an unmoderated list for discussions about interpretation, > clarification, > and proposals for extensions or change to the CF conventions. > > > > _______________________________________________ > CF-metadata mailing list > CF-metadata@cgd.ucar.edu > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > CF-metadata Info Page - > mailman.cgd.ucar.edu<http://mailman.cgd.ucar.edu/mailman/listinfo/cf- > metadata> > mailman.cgd.ucar.edu > This is an unmoderated list for discussions about interpretation, > clarification, > and proposals for extensions or change to the CF conventions. > > > > ________________________________ > This message (and any attachments) is for the recipient only. 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