Dear Christiane,
Thanks for your quick reply. I will proceed with including the mass
fraction and mole fraction names in the next update of the standard
name table. I think also atmosphere_mass_of_air_per_unit_area can go
into the table. The full list of names to be included in the update
will be published on the mailing list shortly.
In the dry deposition names I notice the first one is given as just
"tendency_of_atmosphere_mass_content_of_all_nitrogen_oxides_expressed_as_nitrogen"
- I assume that you meant to include "_due_to_dry_deposition"
at the end and that this is just a typographic error. Correct? The
other dry/wet deposition names look fine now, as do the "chemical
reaction" names.
In the "emissions" category most of the names look fine, but I have
a question about the following:
tendency_of_atmosphere_mass_content_of_secondary_organic_matter_dry_aerosol_due_to_production
tendency_of_atmosphere_mass_content_of_primary_organic_matter_dry_aerosol_due_to_production
tendency_of_atmosphere_mass_content_of_hexachlorobiphenyl_due_to_re_emission
tendency_of_atmosphere_mass_content_of_alpha_hexachlorocyclohexane_due_to_re_emission
Looking back at the exchange of postings that took place between
yourself and Jonathan during January, my understanding is that:
(1) production = chemical_net_production + emission
(2) emission does not include re-emission
I note that Jonathan had some misgivings regarding these particular
terms because he thought they might lead to confusion. I don't think
this issue has been fully resolved as yet. I agree that there is
potential for confusion, particularly with regards to "production",
although I'm not sure that Jonathan's suggested alternative of
"addition" seems quite right either. In the absence of a
satisfactory single word to describe the concept I suppose we could
always opt for the longer but self-explanatory "due_to_chemical_net_production_and_emission". What are your
thoughts about this?
Regarding "re-emission", I think that the term is fine and the
question is really about the definition. We have already agreed that
"emission" is a general term that includes sources located anywhere
in the atmosphere, such as aircraft, and sources located at the
earth's surface. Given that it is a general term, should it not
also include re-emission? Personally, I feel that the deciding factor
in this question should be how the terms are most commonly used within
the atmospheric chemistry community - is it generally understood that
emission and re-emission are entirely separate quantities?
Best wishes,
Alison
------
Alison Pamment Tel: +44 1235 778065
NCAS/British Atmospheric Data Centre Fax: +44 1235 446314
Rutherford Appleton Laboratory Email: J.A.Pamment at rl.ac.uk
Chilton, Didcot, OX11 0QX, U.K.
> -----Original Message-----
> From: Christiane Textor [mailto:christiane.textor at lsce.ipsl.fr]
> Sent: 02 May 2007 15:00
> To: Pamment, JA (Alison)
> Cc: CF-metadata
> Subject: Re: [CF-metadata] approval of standard_names for aerosols and
> chemistry for HTAP
>
> Dear Alison and others,
>
> Thank you very much for your email, it encouraged me to update the wiki
> page according to our latest discussions:
> http://wiki.esipfed.org/index.php/CF_Standard_Names_-
> _Accepted_names_for_TF_HTAP
>
> If you agree with these names, I would be happy if as many of these
> names could be agreed on as soon as possible.
>
> I will also relaunch the discussion about the remaining names that can
> be found at
> http://wiki.esipfed.org/index.php/CF_Standard_Names_-
> _Proposed_names_for_TF_HTAP
>
> Thank you very much,
> Christiane
>
>
> Pamment, JA (Alison) a ?crit :
> > Dear Christiane and Jonathan
> >
> > Thanks for continuing the discussion of these names. My current
> > understanding is that we are on the verge of agreeing names of the
> > form:
> > tendency_of_atmosphere_X_of_Y_due_to_emission
> > tendency_of_atmosphere_X_of_Y_due_to_surface_emission
> > tendency_of_atmosphere_X_of_Y_due_to_chemical_gross|net_production|destr
> > uction
> > tendency_of_atmosphere_X_of_Y_due_to_surface|stomatal_dry|wet_deposition
> > where X is mass content, mole concentration, etc.
> > and Y is species.
> > We have all agreed that surface_emission is a subset of emission.
> >
> > The volume mixing ratio and mass mixing ratio names listed at
> > http://wiki.esipfed.org/index.php/CF_Standard_Names_-_Accepted_names_for
> > _TF_HTAP haven't received any discussion lately, but
> > I think they have been virtually agreed for a long time. Christiane,
> > are you happy for those particular names to go into the next standard
> > name table update due on 8th May? (The tendency names can be included
> > in the update due on 10th July if they are agreed by then).
> >
> > Best wishes,
> > Alison
> >
> > ------
> > Alison Pamment Tel: +44 1235 778065
> > NCAS/British Atmospheric Data Centre Fax: +44 1235 446314
> > Rutherford Appleton Laboratory Email: J.A.Pamment at rl.ac.uk
> > Chilton, Didcot, OX11 0QX, U.K.
> >
> >> -----Original Message-----
> >> From: cf-metadata-bounces at cgd.ucar.edu [mailto:cf-metadata-
> >> bounces at cgd.ucar.edu] On Behalf Of Jonathan Gregory
> >> Sent: 16 April 2007 16:15
> >> To: cf-metadata at cgd.ucar.edu
> >> Subject: [CF-metadata] approval of standard_names for aerosols and
> >> chemistryfor HTAP
> >>
> >> Dear Christiane
> >>
> >> Thanks for thinking about it. I agree that the "tendency of content"
> > is
> >> the
> >> most consistent naming. You could simplify these slightly:
> >>
> >>> emission_at_the_surface
> >>> dry/wet_deposition_to_the_surface
> >> as "surface_emission" and "dry/wet_deposition", which always means
> >> "surface"
> >> (doesn't it)? Certainly I would think names of
> > tendency_of_X_of_Y_due_to_
> >> surface_emission would be fine. The main question with whether the
> >> chemistry/
> >> aerosol community will be happy with these longer names. If you think
> > they
> >> are, that's OK.
> >>
> >> Best wishes
> >>
> >> Jonathan
> >> _______________________________________________
> >> CF-metadata mailing list
> >> CF-metadata at cgd.ucar.edu
> >> http://www.cgd.ucar.edu/mailman/listinfo/cf-metadata
> >
> > _______________________________________________
> > CF-metadata mailing list
> > CF-metadata at cgd.ucar.edu
> > http://www.cgd.ucar.edu/mailman/listinfo/cf-metadata
> >
>
> --
> ==new affiliation==new affiliation==new affiliation==new affiliation==
>
> Christiane Textor
> Laboratoire des Sciences du Climat et de l'Environnement
> Unite Mixte de Recherche CEA-CNRS-UVSQ
>
> LSCE, CEA Saclay
> L'Orme des Merisiers, Bat. 701 Piece 3b
> mailto: christiane.textor at lsce.ipsl.fr
> Tel ++33 1 69 08 34 07
> F-91191 Gif-sur-Yvette Cedex
> FRANCE
>
> GEOMON scientific coordinator http://geomon.ipsl.jussieu.fr/
> ======================================================================
Received on Fri May 04 2007 - 07:21:23 BST
