Dear all,
Please find an updated version of the table on aerosol and chemistry
names at the wiki page:
http://wiki.esipfed.org/index.php/Air_Quality/Chemistry_Naming_Conventions
It contains now 2 tables, one with the names almost accepted by CF, and
one with the names still under discussion.
************
"Accepted names" - discussion of Alison's update email from Dec 8
http://wiki.esipfed.org/index.php/CF_Standard_Names_-_Accepted_names_for_TF_HTAP
**
HNO3 is not called nitrogen acid but nitric acid, this is corrected.
**
I did not include the fluxes due to chemical reactions, because I do not
find it consistent to have gross_production, but just destruction. I
think it should be either
chemical_gross_production_rate
and
chemical_gross_destruction_rate
or both without 'gross'. I opt for the first solution.
**
The names cell_area and cell_thickness are still under discussion, and
cell measures exist to include information on the grid dimension. People
seem not to want an extra standard_name. This is from the cf document,
7.2 Cell measures
float PS(time,cell) ;
PS:units = "Pa" ;
PS:coordinates = "lon lat" ;
PS:cell_measures = "area: cell_area" ;
float cell_area(cell) ;
cell_area:long_name = "area of grid cell" ;
cell_area:standard_name="area";
cell_area:units = "m2"
So I wait until the discussion on cell measures is settled.
**
not included:
particulate_organic_carbon_dry_aerosol changed to
particulate_organic_matter_dry_aerosol after discussions in HTAP
secondary_organic_carbon_dry_aerosol changed to
secondary_organic_matter_dry_aerosol after discussions in HTAP
**
added:
mass_fraction_of_water_in_ambient_aerosol_in_air
************
"Proposed names" - discussion of Alison's update email from Dec 8
http://wiki.esipfed.org/index.php/CF_Standard_Names_-_Proposed_names_for_TF_HTAP
The main remaining issue is the _expressed_as_ extension for the
variables related to mass. There are four variables included in the
accepted list above where a composed molecule is expressed as mass of
the main atom (e.g. NOx as N). For the majority of the variables, where
a composed species is expressed as such, Alison suggested the use of
X_expressed_as_X. As she says, this would sometimes lead to extremely
names.
As a result of our discussion I would now propose to simply not use
X_expressed_as_X in the standard name. If X_expressed_as_X is the usual
case, it is not necessary to mention it for each variable. Instead I
have added a comment 'expressed as mass of X'.
**
Added: variables for DMS
mole_fraction_of_dimethyl_sulfide_in_air
surface_wet_deposition_mass_flux_of_dimethyl_sulfide
surface_dry_deposition_mass_flux_of_dimethyl_sulfide
atmosphere_emission_mass_flux_of_dimethyl_sulfide
******
I am looking forward to your comments!
Best regards,
Christiane
--
Christiane Textor
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 Dec 21 2006 - 03:10:49 GMT
