[CF-metadata] standard name proposal for CCMVal

Pamment, JA (Alison) J.A.Pamment at rl.ac.uk
Tue Mar 11 04:41:00 MDT 2008

Dear Veronika,

Thanks for your clear responses.

> 1) We accept "moles_of_X_in_atmosphere" instead of "burden" as it is
> precise and unambiguous.

Thank you.  All the moles_of_X_in_atmosphere and
tendency_of_moles_of_X_in_atmosphere names are now accepted.

> 2) We accept the use of "age_of_air" rather than "mean_age_of_air",
> will keep "mean_age_of_air" as the long_name. The definition could be
> added in the standard name table: "Mean age of air is defined as the
> mean time that a stratospheric air mass has been out of contact with
> the
> well-mixed troposphere."

Thank you.  As you pointed out in a separate email, the name under
discussion is actually "age_of_stratospheric_air".  This name is

> 3) "mole_fraction_of_passive_ozone_in_air": we suggest to delete it
> from
> the CF standard name list as it can mean different things; we will
> keep it as a long_name.

OK, thank you.  The proposal is dropped.

> 4) "potential_temperature_at_dynamic_tropopause" is fine.

Thank you.  This name is accepted.

> 5) "Cly, Bry, NOy":
> Total families (the sum of all appropriate species in the model), e.g.
> Cly = HCl + ClONO2 + HOCl + ClO + Cl + 2*Cl2O2 +2Cl2 + OClO + BrCl
> NOy = N + NO + NO2 + NO3 + HNO3 + 2N2O5 + HNO4 + ClONO2 + BrONO2
> Bry = Br + BrO + HOBr + HBr + BrONO2 + BrCl
> Definition:
> Cly: Total inorganic stratospheric chlorine (e.g., HCl, ClO) resulting
> from degradation of chlorine-containing source gases (CFCs, HCFCs,
> VSLS), and natural inorganic chlorine sources (e.g., sea salt and
> aerosols)
> Bry: Total inorganic bromine (e.g., HBr and inorganic bromine oxides
> and
> radicals (e.g., BrO, atomic bromine (Br), bromine nitrate (BrONO2))
> resulting from degradation of bromine-containing organicsource
> gases (halons, methyl bromide, VSLS), and natural inorganic bromine
> sources (e.g., volcanoes, sea salt, and other aerosols)
> NOy: Total reactive nitrogen; usually includes atomic nitrogen (N),
> nitric oxide (NO), NO2, nitrogen trioxide (NO3), dinitrogen radical
> (N2O5), nitric acid (HNO3), peroxynitric acid (HNO4), BrONO2, ClONO2

Thank you for supplying these useful definitions.  The discussion has
shown that there is clearly a need for the family names and I am happy
to include them, along with the appropriate definitions.

> 6. "nmvoc" has actually been removed from the CCMVal data request.

OK, the proposals for the nmvoc names are dropped.

> I hope this addresses all open issues. Thanks again for everyone's
> patience with the long list of names we suggested.

Yes, thank you, I think that all the outstanding issues with these
proposals are now resolved.  The CCMVal names will be included in the
standard name table at the next update.

Best wishes,

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.

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