CF Standard Names - Discussed Atmospheric Chemistry and Aerosol Terms

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UNFINISHED - WORK IN PROGRESS Version update

  • first version 22 May 2006
  • updated 2 June 2006
  • updated 2 June 2006

comments to ChristianeTextor are highly welcome! see also our discussion


Table 1: Concept of construction of new names

Table 1 provides the basic ideas of a concept for the construction of standard_names for aerosols and chemistry. The ideas in table 1 are mainly based on the PRISM project (Peter van Velthoven) see PRISM Standard Name Tables, latest Version, V 1.3

Remarks

  • all forcing variables are still missing
  • articles and prepositions should be avoided
  • allways give atmosphere/ocean/soil?
  • try to use SI units (e.g. not hours but seconds)
  • how to distinguish ion - radicals, e.g. NO3 ?


Construction
proposed CF name
Compartement unit remark
atmosphere atmosphere
in_air in air
in_sea_water in sea water
in_troposphere in troposphere
in_stratosphere in stratosphere
in_cloudwater within clouds
Spatial information
from_stratosphere from stratosphere
tropospheric_column tropospheric column
at_surface at surface
surface surface
concentration/mixing ratio/column unit
column vertically integrated mass kg/m2 content=column, should not be used any longer, not self-explaining
mole_fraction_of_X_compartment gases ppv, 1
mass_concentration_of_X_compartment aerosols mass kg/m3
number_concentration_of_X_compartment aerosols number 1/m3
Fluxes [species-unit/second]
dry_deposition_flux_due_to_turbulence_of_X_compartment turbulent dry deposition different for aerosols and gases, see below
dry_deposition_flux_due_to_sedimentation_of_X_compartment seddry deposition different for aerosols and gases, see below
dry_deposition_flux_of_X_compartment dry deposition (dry=turdry+seddry) different for aerosols and gases, see below
emission_flux_of_X_compartment emission different for aerosols and gases, see below
chemical_gross_production_of_X_compartment chemical production different for aerosols and gases, see below
chemical_destruction_of_X_compartment chemical destruction different for aerosols and gases, see below
chemical_net_production_of_X_compartment net chemical production different for aerosols and gases, see below
gases G
dry_deposition_flux_of_G_at_surface 1/(m2s)=molecules/(m2s)
wet_deposition_flux_of_G_at_surface 1/(m2s)=molecules/(m2s)
chemical_gross_production_of_G_in_air 1/s=(ppv/s)
chemical_loss_of_G_in_air 1/s=(ppv/s)
chemical_net_production_of_G_in_air 1/s=(ppv/s)
aerosols A
dry_deposition_flux_due_to_turbulence_of_A_at_surface kg/m2/s
dry_deposition_flux_due_to_turbulence_of_A_at_surface kg/m2/s
dry_deposition_flux_of_A_at_surface kg/m2/s
wet_deposition_flux_of_A_at_surface kg/m2/s
chemical_gross_production_of_A_in_air kg/m3/s
chemical_loss_of_A_in_air kg/m3/s
chemical_net_production_of_A_in_air kg/m3/s
chemical_gross_production_of_A_atmosphere kg/m3/s
chemical_loss_of_A_in_atmosphere kg/m3/s
chemical_net_production_of_A_in_atmosphere kg/m3/s
optical properties / forcing
optical_depth_due_to_X aerosol optical depth (X_aerosol) 1 atmosphere_optical_thickness_due_to_X

is defined by CF, however: 1) very long name, 2) does not fit with cloud_optical_depth, 3) is there any opt. depth not in the atmosphere? therefore suggestion of this new name/alias"

Table 2: Species

Species
CF species_name Species Chemical formula Remarks
gases
nitrogen_oxide Nitrogen oxide NO
hydrogen_peroxide Hydrogen peroxide H2O2
methane Methane CH4
carbon_monoxide Carbon monoxide CO
nitric_acid Nitric acid HNO3
methyl_hydrogen_peroxide Methyl hydrogen peroxide CH3O2H
formaldehyde Formaldehyde CH2O
peroxy_acetyl_nitrate Peroxy acetyl nitrate (PAN) CH3C(O)O2NO2
sulfur_dioxide Sulfur dioxide SO2
dimethyl_sulfide Dimethyl sulfide (DMS) ** CH3SCH3
ammonia Ammonia NH3
ammonium Ammonium NH4
methane_sulfonic_acid Methane sulfonic acid (MSA) CH3SO2OH
hydroperoxy_radical Hydroperoxy radical HO2
methyl_peroxy_radical Methyl peroxy radical CH3O2
hydroxyl_radical Hydroxyl radical (hydroxy radical) OH
nitrogen_dioxide Nitrogen dioxide NO2
nitrate_radical Nitrate radical NO3
dinitrogen_pentoxide Dinitrogen pentoxide N2O5
nitric_acid Nitric acid HNO3
peroxy_nitric_acid Peroxy nitric acid HNO4
peroxy_acetyl_radical Peroxy acetyl radical C2O3
oxygen_radical_in_1D_state Oxygen radical in the 1D (excited) state O(1-D)
ethane ethane C2H6
ethylene ethylene or ethene C2H4
acetylene acetylene C2H2
propane propane C3H8
propene propene C3H6
acetone acetone C3H6O
butane butane C4H10
methyl_glyoxal Methyl glyoxal CH3C(O)C(O)H
isoprene Isoprene, 2-methyl-1,3-butadiene C5H8
lumped species (modified CBMiv) Species
paraffinic_carbon_bonds paraffinic (alkanic) carbon bonds
olefinic_carbon_bonds olefinic (alkenic) carbon bonds
aldehydes_higher_than_2 acetaldehyde and higher aldehydes,
organic_peroxides lumped higher organic peroxides, ROOH
organic_nitrates lumped alkyl nitrates, organic nitrates, RNO3
secondary_organic_oxy_radical the secondary_organic_oxy_radical, ROR
alkyl_peroxy_radical alkyl peroxy radicals, XO2
intermediate_product_of_isoprene_oxidation XO2N (intermediate product of isoprene oxidation)
families
nox NOx=NO+NO2
hox HOx=OH+HO2
aerosols extension _aerosol to distinguish from gases (e.g. NO3) radical in gas phase, from NO3 ion in aerosol
dust_aerosol dust
seasalt_aerosol seasalt
black carbon_aerosol black carbon BC
hydrophilic_black carbon_aerosol hydrophilic black carbon BC
hydrophobic_black carbon_aerosol hydrophobic black carbon BC
organic_carbon_aerosol_from_terpenes_as_particulate_organic_matter_aerosol organic carbon aerosol from terpenes ?
organic_carbon_as_particulate_organic_matter_aerosol organic carbon OC
hydrophilic_organic_carbon_as_particulate_organic_matter_aerosol hydrophilic organic carbon OC
hydrophobic_organic_carbon_as_particulate_organic_matter_aerosol hydrophobic organic carbon OC
sulfate_as_sulfate_aerosol sulfate SO4(2-) what is the cation?
nitrate_as_nitrate_aerosol nitrate NO3(-) what is the cation?
ammonium_as_ammonium_aerosol ammonium NH4(+)
ammonium_sulfate_aerosol ammonium sulfate (NH4)2SO4 do we need sulfate and ammonium sulfate?
aerosol total aerosol
aerosol water aerosol water
conversion_factor_OC_POM_aerosol conversion factor organic carbon to particulate organic carbon