[CF-metadata] Clarifying standard names for 'mass_concentration_of_*_dry_aerosol_particles'

Daniel Neumann daniel.neumann at io-warnemuende.de
Mon Aug 14 03:48:46 MDT 2017


Just a brief reminder.


On 24.07.2017 16:59, Daniel Neumann wrote:
> Dear CF-Mailinglist,
>
> I suggest to rename all standard names (rename = create the new names 
> and make the old names aliases to the new ones)
>
> atmospheric_mass_content_of_X_dry_aerosol
> to
> atmospheric_mass_content_of_X_in_dry_aerosol
>
> and
>
> mass_concentration_of_X_dry_aerosol_in_air
> to
> mass_concentration_of_X_in_dry_aerosol_in_air
>
> and
>
> atmosphere_mass_content_of_sulfate_dry_aerosol_particles_expressed_as_sulfur 
>
> to
> atmosphere_mass_content_of_sulfate_in_dry_aerosol_particles_expressed_as_sulfur 
>
>
> I am not aware of any reasonable exceptions for X.
>
>
> Further I would like to suggest to add
>
> atmospheric_mass_content_of_X_in_dry_aerosol
> mass_concentration_of_X_in_dry_aerosol_in_air
>
> for chloride and sodium (units and descriptions according to the 
> existing other standard names of this type).
>
>
> Reasons:
> (a) As stated here 
> (http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2017/059588.html) 
> and here 
> (http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2017/059554.html), 
> the standard name mass_concentration_of_X_dry_aerosol describes the 
> total dry mass of all aerosol particles that contain traces of X. 
> There is currently no term to describe the mass concentration of 
> particulate X.
> (b) As stated here 
> (http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2017/059588.html) 
> there is no practical application or 
> mass_concentration_of_X_dry_aerosol. However, for the CMIP5 
> experiments the standard name 
> atmospheric_mass_content_of_X_dry_aerosol is used to describe the mass 
> content of particulate X (sulfate, nitrate, ammonium) in the 
> atmosphere. See standard_output.pdf on 
> http://cmip-pcmdi.llnl.gov/cmip5/output_req.html for details: 
> http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.pdf . There are 
> probably more situation, in which mass_concentration_of_X_dry_aerosol 
> and atmospheric_mass_content_of_X_dry_aerosol were wrongly used. At 
> least I would have used it wrongly :-) .
>
> In order to (a) have valid standard names for the mass concentration 
> (and mass content) of particulate X and (b) be backward compatible 
> with respect to the current usage of existing standard names, I 
> suggest to rename the old variable names (create new one + make the 
> old ones aliases to the new ones) instead of just creating new ones 
> (without alias-ing).
>
>
> Regards,
> Daniel
> _______________________________________________
> CF-metadata mailing list
> CF-metadata at cgd.ucar.edu
> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata

-- 
Daniel Neumann

Leibniz Institute for Baltic Sea Research Warnemuende
Physical Oceanography and Instrumentation
Seestrasse 15
18119 Rostock
Germany

phone:  +49-381-5197-287
fax:    +49-381-5197-114 or 440
e-mail: daniel.neumann at io-warnemuende.de




More information about the CF-metadata mailing list