Dear Christophe and Philip,
thank you both for your comments. The amended proposal is now:
mole_content_of_ozone_in_atmosphere_layer; mol m-2
' "Content" indicates a quantity per unit area. The "content_of_X_in_atmosphere_layer" refers to the vertical integral between two specified levels in the atmosphere. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. For the mole content integrated from the surface to the top of the atmosphere, standard names including "atmosphere_mole_content_of_X" are used. The chemical formula for ozone is O3. "mole_content_of_ozone_in_atmosphere_layer" is usually measured in Dobson Units which are equivalent to 446.2 micromoles m-2. N.B. Data variables containing column content of ozone can be given the standard name of either equivalent_thickness_at_stp_of_atmosphere_ozone_content or atm
osphere_mole_content_of_ozone. The latter name is recommended for consistency with mole content names for chemical species other than ozone.'
I think this proposal is in pretty good shape and unlikely to be controversial. Therefore, unless further comments are received within the next seven days the name will be accepted for addition to the standard name table.
Philip made a comment about the order of the wording:
>
> Although this shouldn't affect the current proposal, I note for the record that it seems strange that for the Integral of the whole atmosphere
> our pattern is:
>
> atmosphere_X_content
>
> But for a partial integral we put 'atmosphere' after X:
>
> X_content_of_atmosphere_layer
>
The standard name Guidelines
http://cf-pcmdi.llnl.gov/documents/cf-standard-names/guidelines don't explicitly cover the different word order for atmosphere and atmosphere_layer, however, I think this case is very like the situation described for surfaces in the 'Qualifications' section of the document. Following the same thinking, a single word qualification such as 'atmosphere' would go at the beginning of the name whereas a multi-word phrase such as 'atmosphere_layer' would go at the end after a connecting word such as 'of' or 'in'. Certainly this is the approach we have taken with all the existing atmosphere and atmosphere_layer names.
Best wishes,
Alison
------
Alison Pamment Tel: +44 1235 778065
NCAS/British Atmospheric Data Centre Email: alison.pamment at stfc.ac.uk
STFC Rutherford Appleton Laboratory
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.
> -----Original Message-----
> From: Christophe Lerot [mailto:Christophe.Lerot at aeronomie.be]
> Sent: 23 January 2013 08:01
> To: Cameron-smith, Philip
> Cc: Pamment, Alison (STFC,RAL,RALSP); cf-metadata at cgd.ucar.edu;
> peet at knmi.nl; Miles, Georgina (STFC,RAL,RALSP)
> Subject: Re: [CF-metadata] standard name for ozone partial column in
> atmosphere layer
>
> Hi Alison and Philip,
>
> I agree with each of your comment.
>
> Best regards,
> Christophe
>
> On 22/01/2013 19:31, Cameron-smith, Philip wrote:
> > Hi Alison, Christophe, et al.,
> >
> > I agree that this name follows existing patterns.
> >
> > It would be good to add a comment similar to the one we added for
> atmosphere_mole_content_of_ozone (although we don't currently have the
> corresponding layer version of
> equivalent_thickness_at_stp_of_atmosphere_ozone_content, so the
> wording will need to be tweaked):
> >
> > "N.B. Data variables containing column content of ozone can be given the
> standard name of either
> equivalent_thickness_at_stp_of_atmosphere_ozone_content or
> atmosphere_mole_content_of_ozone.The latter name is recommended for
> consistency with mole content names for chemical species other than
> ozone."
> >
> > Although this shouldn't affect the current proposal, I note for the record
> that it seems strange that for the Integral of the whole atmosphere our
> pattern is:
> >
> > atmosphere_X_content
> >
> > But for a partial integral we put 'atmosphere' after X:
> >
> > X_content_of_atmosphere_layer
> >
> > Best wishes,
> >
> > Philip
> >
> > -----------------------------------------------------------------------
> > Dr Philip Cameron-Smith, pjc at llnl.gov, Lawrence Livermore National Lab.
> > -----------------------------------------------------------------------
> >
> >
> >
> >> -----Original Message-----
> >> From: CF-metadata [mailto:cf-metadata-bounces at cgd.ucar.edu] On
> Behalf Of
> >> alison.pamment at stfc.ac.uk
> >> Sent: Tuesday, January 22, 2013 6:30 AM
> >> To: Christophe.Lerot at aeronomie.be; cf-metadata at cgd.ucar.edu
> >> Cc: peet at knmi.nl
> >> Subject: Re: [CF-metadata] standard name for ozone partial column in
> >> atmosphere layer
> >>
> >> Dear Christophe,
> >>
> >> Thank you for proposing this name. I think
> >> mole_content_of_ozone_in_atmosphere_layer is the correct name and
> it is
> >> consistent with existing names such as
> >> mass_content_of_water_in_atmosphere_layer. The canonical units
> would be
> >> mol m-2 as for the total column name. Regarding your suggested
> definition, I
> >> think we could delete the third sentence:
> >> "mole_content_of_X_in_atmosphere_layer" means the vertically
> integrated
> >> number of moles of X above a unit area" as it is essentially repeating the
> >> information contained in the previous two sentences, but otherwise it
> looks
> >> fine.
> >>
> >> Best wishes,
> >> Alison
> >>
> >> ------
> >> Alison Pamment Tel: +44 1235 778065
> >> NCAS/British Atmospheric Data Centre Email:
> alison.pamment at stfc.ac.uk
> >> STFC Rutherford Appleton Laboratory
> >> R25, 2.22
> >> Harwell Oxford, Didcot, OX11 0QX, U.K.
> >>
> >>
> >>
> >>> -----Original Message-----
> >>> From: CF-metadata [mailto:cf-metadata-bounces at cgd.ucar.edu] On
> Behalf
> >>> Of Christophe Lerot
> >>> Sent: 22 January 2013 09:35
> >>> To: cf-metadata at cgd.ucar.edu
> >>> Cc: Jacob van Peet
> >>> Subject: [CF-metadata] standard name for ozone partial column in
> >>> atmosphere layer
> >>>
> >>> Dear all,
> >>>
> >>> Similarly to what has been done for total ozone columns, some
> >>> colleagues of mine would need a standard name for ozone partial
> >>> columns in defined layers of the atmosphere.
> >>>
> >>> Therefore, I'd like to propose such a standard name based on the one
> >>> corresponding to total ozone
> >>>
> >>> "mole_content_of_ozone_in_atmosphere_layer":
> >>> "Content" indicates a quantity per unit area. The
> >>> "content_of_X_in_atmosphere_layer" refers to the vertical integral
> >>> between two specified levels in the atmosphere.
> >>> "mole_content_of_X_in_atmosphere_layer" means the vertically
> >>> integrated number of moles of X above a unit area. "Layer" means any
> >>> layer with upper and lower boundaries that have constant values in
> >>> some vertical coordinate. There must be a vertical coordinate variable
> >>> indicating the extent of the layer(s). If the layers are model layers,
> >>> the vertical coordinate can be model_level_number, but it is
> >>> recommended to specify a physical coordinate (in a scalar or auxiliary
> >>> coordinate variable) as well. For the mole content integrated from the
> >>> surface to the top of the atmosphere, standard names including
> >> "atmosphere_mole_content_of_X"
> >>> are
> >>> used. The chemical formula for ozone is O3.
> >>> "mole_content_of_ozone_in_atmosphere_layer" is usually measured in
> >>> Dobson Units which are equivalent to 446.2 micromoles m-2.
> >>>
> >>> Thank you for considering this.
> >>>
> >>> Best wishes,
> >>> Christophe
> >>>
> >>> --
> >>> -----------------------------------------------------
> >>> Dr. Christophe LEROT
> >>> Belgian Institute for Space Aeronomy
> >>> Chemistry & Physics of Atmospheres
> >>> Avenue circulaire, 3
> >>> 1180 Brussels
> >>> Belgium
> >>> phone: +32/(0)2-3730-407
> >>> mobile: +32/(0)472-81.87.00
> >>> mail: christophe.lerot at aeronomie.be
> >>> url: http://uv-vis.aeronomie.be/
> >>> -----------------------------------------------------
> >>>
> >>> _______________________________________________
> >>> CF-metadata mailing list
> >>> CF-metadata at cgd.ucar.edu
> >>> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
> >> --
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> >> _______________________________________________
> >> CF-metadata mailing list
> >> CF-metadata at cgd.ucar.edu
> >> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
>
> --
> -----------------------------------------------------
> Dr. Christophe LEROT
> Belgian Institute for Space Aeronomy
> Chemistry & Physics of Atmospheres
> Avenue circulaire, 3
> 1180 Brussels
> Belgium
> phone: +32/(0)2-3730-407
> mobile: +32/(0)472-81.87.00
> mail: christophe.lerot at aeronomie.be
> url: http://uv-vis.aeronomie.be/
> -----------------------------------------------------
>
>
--
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Received on Thu Jan 24 2013 - 07:02:56 GMT
