Here is the opinion of an expert (Ian Hedgecock):
> Yep,
> no confusion that way!
> cheers,
> Ian
Roy Lowry a ?crit :
> Christiane/Jonatathan
>
> Would divalent_mercury just to confirm that the II refers to valency be better?
>
> Cheers, Roy.
>
>
>>>>Christiane Textor <christiane.textor at aero.jussieu.fr> 10/5/2006 2:46 pm >>>
>
> Dear Jonathan,
>
> Mercury in the atmosphere is always a positive ion, only under extreme
> conditions can it be negative. Therefore the 2plus is not necessary.
> However, in the chemical community the use of mercury_II instead of
> mercury_2 is more common, as use roman numerals are used to indicate an
> atoms oxidation state. Hence I suggest:
>
> mercury
> mercury_II
> mercury_dry_aerosol (to be consistent with other aerosol species)
>
> (More comments on the use of X_as_Y in a next email.)
>
> Best regards,
> Christiane
>
>
>>mercury_0 is elemental mercury in the gas phase,
>>mercury_2 is oxidised mercury in the gas phase,
>>mercury_aerosol is mercury emitted from antrhopogenic sources associated with particulate matter.
>
>
> Jonathan Gregory a ?crit :
>
>>Dear Christiane
>>
>>Would it be correct to describe mercury_0 as atomic_mercury and mercury_2 as
>>mercury_2+_ion (or 2plus), and would that help clarity, do you think?
>>
>>Perhaps fluxes of mercury_aerosol ought to be mercury_as_mercury_aerosol, like
>>your other such quantities.
>>
>>On that last issue, I wonder if the phrases like ammonium_as_ammonium could be
>>made shorter and less puzzling as e.g. ammonium_as_such or some alternative
>>idea? Also, could a mass flux of
>>particulate_organic_carbon_as_particulate_organic_carbon_dry_aerosol
>>be particulate_organic_carbon_as_dry_aerosol? As I understand it, in X_as_Y
>>you are saying it is the mass flux of X, emitted in the form of Y.
>>
>>Cheers
>>
>>Jonathan
>>_______________________________________________
>>CF-metadata mailing list
>>CF-metadata at cgd.ucar.edu
>>http://www.cgd.ucar.edu/mailman/listinfo/cf-metadata
>>
>
>
--
Christiane Textor
GMES France Atmosph?re - GEMS France
Service d'A?ronomie INSU CNRS, Tour 46, RDC # 2
Universit? Pierre et Marie Curie, Boite 102
4 place Jussieu
75252 Paris C?dex 05
France
Tel: ++33 1.44.27.21.82
Fax: ++33 1.44.27.21.81
Email: christiane.textor at aero.jussieu.fr
Received on Thu Oct 05 2006 - 08:16:40 BST
