Hi all,
I am not sure Bruce and others received previous answer from Jonathan.
I am OK with 'mole_mixing_ratio_of_nitrate_to_phosphate_in_sea_water'.
Kind regards,
Olivier.
-----Message d'origine-----
De?: cf-metadata-bounces at cgd.ucar.edu [mailto:cf-metadata-bounces at cgd.ucar.edu] De la part de Jonathan Gregory
Envoy??: mercredi 13 mai 2009 09:16
??: cf-metadata at cgd.ucar.edu
Objet?: [CF-metadata] Proposal for additional CF biogeochemistry attributes
Dear Philip and Bruce
> In the atmosphere CF has used 'mole_fraction_' to designate mole/mole
> quantities.
>
> Hence, perhaps we should use
> MOLE_FRACTION_of_nitrate_to_phosphate_in_sea_water here?
>
> The counter argument is that, in every existing CF std name I could find,
> mol_fraction_ is always the mole ratio of the species to air.
> Hence, I think the question boils down to: Do we want to create a new
> prefix (ie 'mole_ratio_') for ratios of species to species (as opposed to
> the ratio of species to medium)?
Yes, I think that would be a good choice, for instance a pattern
mole_ratio_of_X_to_Y_in_sea_water
or perhaps
mole_mixing_ratio_of_X_to_Y_in_sea_water
by analogy to four existing standard names that use the phrase mixing_ratio.
> (They also seem to prefer expressing oxygen concentration in
> ml/l, by the way.)
One of these four is the existing standard name
volume_mixing_ratio_of_oxygen_at_stp_in_sea_water
which I think is just what you want i.e. the ratio of the volume of oxygen gas
at STP to the volume of water it is dissolved in.
Best wishes
Jonathan
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Received on Wed May 13 2009 - 09:58:31 BST
