Dear Martin,

The table has not been updated since July 2011 which is why your names are not 
published at the moment. I had planned to do an update in December but had some 
technical problems which caused the vocab editor to keep crashing. These are 
fixed now and I agree that an update is well overdue. I plan to do an update on 
22nd March (this is to give time for advance notification on the mailing list 
of all the planned changes and allow for simultaneous publication of the update 
on the CF website and in the NERC vocabulary server). There are a number of 
sets of names which have been accepted and are waiting to be added to the 
table. To summarise the situation with your various air quality names:

volume_extinction_coefficient_in_air_due_to_mie_scattering_of_ambient_aerosol; 
m-1

This name is accepted for inclusion in the standard name table. It slightly 
extends the syntax that we have used for other 'coefficient' names; I think it 
does so in a clear way.

mass_concentration_of_pm2p5_ambient_aerosol_in_air; kg m-3
mass_concentration_of_pm1_ambient_aerosol_in_air; kg m-3
mass_concentration_of_pm10_ambient_aerosol_in_air; kg m-3

As stated in your original email, these names all follow existing syntax and 
they were subsequently supported by Philip Cameron-Smith. These names are 
accepted for inclusion in the standard name table.

mole_fraction_of_hydrogen_sulfite_in_air; 1
mole_fraction_of_alkanes_in_air; 1
mass_concentration_of_coarse_mode_ambient_aerosol_in_air; kg m-3
mole_fraction_of_aldehydes_in_air; 1
mole_fraction_of_dichlorine_in_air; 1
mole_fraction_of_methlyglyoxal_in_air; 1

These names all follow existing syntax and they were subsequently supported by 
Philip Cameron-Smith. Two or three of them introduce new chemical species names 
for which you have provided definitions, including alternative chemical 
nomenclature. These names are accepted for inclusion in the standard name table.

All the names will be included in the next update of the standard name table.

Best wishes,
Alison

------
Alison Pamment                          Tel: +44 1235 778065
NCAS/British Atmospheric Data Centre    Email: [email protected]
STFC Rutherford Appleton Laboratory     
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.


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