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[CF-metadata] standard names for chemistry - MCM

From: Heinke Hoeck <heinke.hoeck>
Date: Wed, 22 Oct 2008 09:15:52 +0200

Philip J. Cameronsmith1 wrote:
>
> Hi Heinke, (cc Martin)
>
> I am replying off the CF list because I don't fully understand your
> email.
> In particular, I am not sure whether we are generally agreeing or
> disagreeing.
>
> I was trying to express the concept that the chemistry standard names can
> be formed from two separate lists of names (one for quantity, and one for
> species), where there is no overlap between the two lists. My suggestion
> then was that CF maintain the two independent lists (chemical quantity
> and
> specie) rather than a single list that contains all combinations of
> quantity and specie, since I believe this will be easier to maintain
> and extend.
>
> Do you agree?
Dear Philip,
I agree but I think we should discuss how many lists we should use for the
species. For example Christiane uses X for all, G for gases and A for
aerosols.
But this could be done later.
>
> I am also not quite sure what you are trying to convey by your example:
>
>> example:
>> dimensions:
>> lat=72;
>> lon=124;
>> maxlen=30;
>> float quantity(lat,lon,height,time) ;
>> quantity:standard_name = "mass_fraction_of_constituent_in_air" ;
>> quantity:units = "1" ;
>> quantity:coordinates = "constituent" ;
>> char constituent(maxlen);
>> constituent:standard_name='IUPAC_system';
>> data:
>> constituent='ozone';
>
> What is the distinction you are trying to make? Is it that the specie
> should be a separate metadata quantity, with only the physical
> quantity in the standard name?
>
Yes.
Best regards
Heinke
> Yours truly,
>
> Philip
>
> On Mon, 20 Oct 2008, Heinke Hoeck wrote:
>
Received on Wed Oct 22 2008 - 01:15:52 BST

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