[CF-metadata] New standard names for NEMO ocean model output

Sebastien Villaume sebastien.villaume at ecmwf.int
Thu Jun 8 06:09:19 MDT 2017


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.villaume at ecmwf.int>
To: "Lowry, Roy K." <rkl at bodc.ac.uk>
Cc: cf-metadata at cgd.ucar.edu, "Jonathan Gregory" <j.m.gregory at 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_salinity
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." <rkl at bodc.ac.uk>
To: "Jonathan Gregory" <j.m.gregory at reading.ac.uk>, "Sebastien Villaume" <sebastien.villaume at ecmwf.int>
Cc: cf-metadata at 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 enquiries at bodc.ac.uk. Please also use this e-mail if your requirement is urgent.


________________________________
From: CF-metadata <cf-metadata-bounces at cgd.ucar.edu> on behalf of Sebastien Villaume <sebastien.villaume at ecmwf.int>
Sent: 27 April 2017 09:16
To: Jonathan Gregory
Cc: cf-metadata at 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.gregory at reading.ac.uk>
To: cf-metadata at 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_salinity
> 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
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