CF Standard Names - Discussed Atmospheric Chemistry and Aerosol Terms

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UNFINISHED - WORK IN PROGRESS

• first version 22 May 2006
• updated 2 June 2006

comments to ChristianeTextor are highly welcome! see also our discussion

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• Table 1: Concept of construction of new names
• Table 2: Species
• Table 3: Proposed names for chemistry and aerosols

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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 ?

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Table 1

Construction	PRISM proposals in black, new suggestions in blue
Large Scale Compartement	proposed CF name	unit	remark
atmosphere	atmosphere
surface	surface		add ocean/sea troposphere stratosphere?
Local Scale Compartment
from stratosphere	from_stratosphere		changed from PRISM proposal, article deleted
tropospheric	tropospheric		to be used for e.g. troposheric_column
stratospheric	stratospheric
atmospheric	atmospheric
at surface	at_surface
in air	in_air
in sea water	in_sea_water
in troposphere	in_troposphere
in stratosphere	in_stratosphere
in cloud water	in_cloudwater		PRISM in_cloudy_air
concentration/mixing ratio/vertical burden	CF standard name	unit
vertical burden	column		content=column, nshould not be used any longer, not self-explaining
gases	mole_fraction_of_X_compartment	ppv, 1
aerosols mass	mass_concentration_of_X_compartment	kg/m3
aerosols number	number_concentration_of_X_compartment	1/m3
Fluxes		[species-unit/second]
turbulent dry deposition	dry_deposition_flux_due_to_turbulence	different for aerosols and gases, see below	add atmosphere/sea?
dry deposition due to sedimentation	dry_deposition_flux_due_to_sedimentation	different for aerosols and gases, see below	add atmosphere/sea?
total dry deposition (dry=tur+sed)	dry_deposition_flux	different for aerosols and gases, see below	add atmosphere/sea?
emission	emission_flux	different for aerosols and gases, see below	add atmosphere/sea?
chemical production	chemical_production	different for aerosols and gases, see below	add atmosphere/sea? add _rate ?
chemical destruction	chemical_destruction	different for aerosols and gases, see below	add atmosphere/sea? add _rate ?
net chemical production	net_X_production	different for aerosols and gases, see below	add atmosphere/sea? add _rate ?
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_production_of_G_in_air	1/s=(ppv/s)
	chemical_loss_of_G_in_air	1/s=(ppv/s)
	net_G_production_atmosphere	1/s=(ppv/s)
aerosols A
	dry_deposition_flux_due_to_turbulence_of_A_at_surface	kg/m2/s
	dry_deposition_flux_due_to_sedimentation_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_production_of_A_in_air	kg/m3/s
	chemical_loss_of_A_in_air	kg/m3/s
optical properties / forcing
aerosol optical depth (X_aerosol)	atmosphere_X_optical_depth X_optical_depth optical_depth_due_to_X	1	atmosphere_optical_thickness_due_to_X CF def!: 1) very long name, 2) does not fit with cloud_optical_depth, 3) is there any opt. depth not in the atmosphere?

Table 2: Species

PRISM proposals in black, new suggestions in blue
CF species_name	Species	Chemical formula	Remarks
gases
carbon_dioxide alias co2	Carbon dioxide *	CO2	* already defined in CF
ozone  alias: o3	Ozone	O3	** used both in the atmosphere and the ocean (O3, DMS)
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 carbon bonds		alkanic carbon bonds
olefinic_carbon_bonds	olefinic carbon bonds		alkenic carbon bonds
aldehydes_higher_than_2	acetaldehyde and higher aldehydes,
	aldehydes with more than one C atom, RCHO
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_from_terpenes _aerosol_as_mass_of_organic_carbon	organic carbon aerosol from terpenes in kg OC	?	organic_carbon_from_terpenes (aerosol is a compartment)
organic_carbon_aerosol _as_mass_of_organic_carbon	organic carbon in kg OC	OC
hydrophilic_organic_carbon _aerosol_as_mass_of_organic_carbon	hydrophilic organic carbon in kg OC	OC
hydrophobic_organic_carbon _aerosol_as_mass_of_organic_carbon	hydrophobic organic carbon in kg OC	OC
sulfate_aerosol_as_mass_of_sulfate	sulfate	SO4(2-)	what is the cation?
nitrate_aerosol_as_mass_of_nitrate	nitrate	NO3(-)	what is the cation?
ammonium_aerosol	ammonium_as_mass_of_???	NH4(+)
ammonium_sulfate_aerosol	ammonium_sulfate	(NH4)2SO4	do we need sulfate and ammonium sulfate?
aerosol	total dry aerosol		should be the sum of all individual components without aerosol water
aerosol water	aerosol water
conversion_factor_OC_POM_aerosol	conversion factor organic carbon to particulate organic carbon (including all other atoms)

Table 3: Proposed names for chemistry and aerosols

Proposed Standard names	PRISM proposals in black, new suggestions in blue
	CF Standard_name	Canonical unit	remarks
gas phase species
volume mixing ratio of ozone, O3	mole_fraction_of_ozone_in_air	1 (ppv)
volume mixing ratio of nitrogen oxide, NO	mole_fraction_of_nitrogen_oxide_in_air	1 (ppv)
volume mixing ratio of hydrogen peroxide, H2O2	mole_fraction_of_hydrogen_peroxide_in_air	1 (ppv)
volume mixing ratio of methane, CH4	mole_fraction_of_methane_in_air	1 (ppv)
volume mixing ratio of carbon monoxide, CO	mole_fraction_of_carbon_monoxide_in_air	1 (ppv)
volume mixing ratio of nitric acid, HNO3	mole_fraction_of_nitric_acid_in_air	1 (ppv)
volume mixing ratio of methyl hydrogen peroxide, CH3O2H	mole_fraction_of_methyl_hydrogen_peroxide_in_air	1 (ppv)
volume mixing ratio of formaldehyde, CH2O	mole_fraction_of_formaldehyde_in_air	1 (ppv)
volume mixing ratio of peroxy acetyl nitrate, PAN, CH3COO2NO2	mole_fraction_of_peroxy_acetyl_nitrate_in_air	1 (ppv)
volume mixing ratio of sulfur dioxide, SO2	mole_fraction_of_sulfur_dioxide_in_air	1 (ppv)
volume mixing ratio of dimethyl sulfide, DMS, CH3SCH3	mole_fraction_of_dimethyl_sulfide_in_air	1 (ppv)
volume mixing ratio of ammonia, NH3	mole_fraction_of_ammonia_in_air	1 (ppv)
volume mixing ratio of ammonium, NH4	mole_fraction_of_ammonium_in_air	1 (ppv)
volume mixing ratio of methane sulfonic acid, MSA, CH3SO2OH	mole_fraction_of_methane_sulfonic_acid_in_air	1 (ppv)
volume mixing ratio of the hydroperoxy radical, HO2	mole_fraction_of_hydroperoxy_radical_in_air	1 (ppv)
volume mixing ratio of the methyl peroxy radical, CH3O2	mole_fraction_of_methyl_peroxy_radical_in_air	1 (ppv)
volume mixing ratio of the hydroxy radical, hydroxyl, OH	mole_fraction_of_hydroxyl_radical_in_air	1 (ppv)
volume mixing ratio of nitrogen dioxide, NO2	mole_fraction_of_nitrogen_dioxide_in_air	1 (ppv)
volume mixing ratio of the nitrate radical, NO3	mole_fraction_of_nitrate_radical_in_air	1 (ppv)
volume mixing ratio of dinitrogen pentoxide, N2O5	mole_fraction_of_dinitrogen_pentoxide_in_air	1 (ppv)
volume mixing ratio of nitric acid, HNO3	mole_fraction_of_nitric_acid_in_air	1 (ppv)
volume mixing ratio of peroxy nitric acid, HNO4	mole_fraction_of_peroxy_nitric_acid_in_air	1 (ppv)
volume mixing ratio of the peroxy acetyl radical, C2O3	mole_fraction_of_peroxy_acetyl_radical_in_air	1 (ppv)
volume mixing ratio of the oxygen radical in the 1D excited state, O(1D)	mole_fraction_of_oxygen_radical_in_1D_state_in_air	1 (ppv)
volume mixing ratio of ethane, C2H6	mole_fraction_of_ethane_in_air	1 (ppv)
volume mixing ratio of ethene, C2H4 (aka ethylene)	mole_fraction_of_ethene_in_air	1 (ppv)
volume mixing ratio of acetylene, C2H2	mole_fraction_of_acetylene_in_air	1 (ppv)
volume mixing ratio of propane, C3H8	mole_fraction_of_propane_in_air	1 (ppv)
volume mixing ratio of propene, C3H6	mole_fraction_of_propene_in_air	1 (ppv)
volume mixing ratio of acetone, C3H6O	mole_fraction_of_acetone_in_air	1 (ppv)
volume mixing ratio of butane, C4H10	mole_fraction_of_butane_in_air	1 (ppv)
volume mixing ratio of methyl_glyoxal, CH3COCOH	mole_fraction_of_methyl_glyoxal_in_air	1 (ppv)
volume mixing ratio of isoprene, C5H8	mole_fraction_of_isoprene_in_air	1 (ppv)
derived:
volume mixing ratio of ozone from the stratosphere	mole_fraction_of_ozone_from_stratosphere_in troposphere	1 (ppv)	mole_fraction_of_stratospheric_ozone is ambigous: in the troposphere?
lumped species (modified CBMiv)
volume mixing ratio of paraffinic carbon bonds	mole_fraction_of_alkanic_carbon_bonds_in_air	1 (ppv)	mole_fraction_of_paraffinic_carbon_bonds_in_air
volume mixing ratio of olefinic carbon bonds	mole_fraction_of_alkenic_carbon_bonds_in_air	1 (ppv)	mole_fraction_of_olefinic_carbon_bonds_in_air
volume mixing ratio of acetaldehyde and higher aldehydes,	mole_fraction_of_aldehydes_higher_than_2_in_air	1 (ppv)
volume mixing ratio of aldehydes with more than one C atom, RCHO
volume mixing ratio of lumped higher organic peroxides, ROOH	mole_fraction_of_organic_peroxides_in_air	1 (ppv)
volume mixing ratio of lumped alkyl nitrates, organic nitrates, RNO3	mole_fraction_of_organic_nitrates_in_air	1 (ppv)
volume mixing ratio of the secondary_organic_oxy_radical, ROR	mole_fraction_of_secondary_organic_oxy_radical_in_air	1 (ppv)
volume mixing ratio of alkyl peroxy radicals, XO2	mole_fraction_of_alkyl_peroxy_radical_in_air	1 (ppv)
volume mixing ratio of XO2N (intermediate product of isoprene oxidation)	mole_fraction_of_intermediate_product_of_isoprene_oxidation_in_air	1 (ppv)
Families
volume mixing ratio of NOx=NO+NO2	mole_fraction_of_nox_in_air	1 (ppv)
volume mixing ratio of HOx=OH+HO2	mole_fraction_of_hox_in_air	1 (ppv)
gases: fluxes/productions/emissions
dry deposition of ozone	dry_deposition_flux_due_to_turbulence_of_ozone _at_surface_atmosphere	1/(m2s)= molecules/(m2s)	PRISM dry_deposition_flux_of_ozone, is the unit ok?
wet deposition of nitric acid, HNO3	wet_deposition_flux_of_nitric_acid_at_surface _atmosphere	1/(m2s)= molecules/(m2s)	PRISM wet_deposition_flux_of_nitric_acid unit? consistency with nitrogen aerosols!?, is the unit ok?
net chemical production rate of ozone (production-loss)	net_ozone_production_atmosphere	1/s=(ppv/s)	PRISM net_chemical_production_of_ozone_in_air, 1/s (ppbv/hr)
chemical production rate of ozone	chemical_production_of_ozone_in_air, does this include heterogeneous reactions within cloud drops, or on particles? if not, call it atmosphere_chemical_production_of_ozone	1/s=(ppv/s)	PRISM gross_chemical_production_of_ozone_in_air 1/s (ppbv/hr)
chemical loss rate of ozone	chemical_loss_of_ozone_in_air	1/s=(ppv/s)	PRISM 1/s (ppbv/hr)
aerosols
sulfate aerosol (SO4)	mass_concentration_of_sulfate_aerosol_in_air	kg/m3
nitrate aerosol (NO3-)	mass_concentration_of_nitrate_aerosol_in_air	kg/m3	PRISM HNO3
ammoniumsulfate aerosol ((NH4)2SO4)	mass_concentration_of_ammonium_sulfate_aerosol_in_air	kg/m3	PRISM NH4SO4
seasalt aerosol	mass_concentration_of_seasalt_aerosol_in_air	kg/m3
aerosol from terpenes	mass_concentration_of_organic_carbon_aerosol_from_terpenes_in_air	kg/m3
organic carbon aerosol	mass_concentration_of_organic_carbon_aerosol_in_air	kg/m3
hydrophilic organic carbon aerosol	mass_concentration_of_hydrophilic_organic_carbon_aerosol_in_air	kg/m3
hydrophobic organic carbon aerosol	mass_concentration_of_hydrophobic_organic_carbon_aerosol_in_air	kg/m3
black carbon aerosol	mass_concentration_of_black_carbon_aerosol_in_air	kg/m3
hydrophilic black carbon aerosol	mass_concentration_of_hydrophilic_black_carbon_aerosol_in_air	kg/m3
hydrophobic black carbon aerosol	mass_concentration_of_hydrophobic_black_carbon_aerosol_in_air	kg/m3
dust	mass_concentration_of_dust_aerosol_in_air	kg/m3
aerosols: fluxes/productions/emissions
dry deposition of sulfate at the surface 2D	dry_deposition_flux_of_sulfate_at_surface	kgS/m2/s
dry deposition of seasalt at the surface 2D	dry_deposition_flux_of_seasalt_at_surface	kg/m2/s
dry deposition of orbanic carbon at the surface 2D	dry_deposition_flux_of_orbanic_carbon_at_surface	kgC/m2/s
dry deposition of black carbon at the surface 2D	dry_deposition_flux_of_black_carbon_at_surface	kgC/m2/s
dry deposition of dust at the surface 2D	dry_deposition_flux_of_dust_at_surface	kg/m2/s
wet deposition of sulfate at the surface 2D	wet_deposition_flux_of_sulfate_at_surface	kgS/m2/s
wet deposition of seasalt at the surface 2D	wet_deposition_flux_of_seasalt_at_surface	kg/m2/s
wet deposition of orbanic carbon at the surface 2D	wet_deposition_flux_of_orbanic_carbon_at_surface	kgC/m2/s
wet deposition of black carbon at the surface 2D	wet_deposition_flux_of_black_carbon_at_surface	kgC/m2/s
wet deposition of dust at the surface 2D	wet_deposition_flux_of_dust_at_surface	kg/m2/s
emission of sulfate at the surface 2D	emission_flux_of_sulfate_at_surface	kgS/m2/s
emission of seasalt at the surface 2D	emission_flux_of_seasalt_at_surface	kg/m2/s
emission of organic carbon at the surface 2D	emission_flux_of_organic_carbon_at_surface	kgC/m2/s
emission of black carbon at the surface 2D	emission_flux_of_black_carbon_at_surface	kgC/m2/s
emission of dust at the surface 2D	emission_flux_of_dust_at_surface	kg/m2/s
emission of sulfate in the atmosphere 3D	emission_flux_of_sulfate_in _the_atmosphere	kgS/m3/s
emission of orbanic carbon in the atmosphere 3D	emission_flux_of_organic_carbon_in _the_atmosphere	kgC/m3/s
emission of black carbon in the atmosphere 3D	emission_flux_of_black_carbon_in _the_atmosphere	kgC/m3/s
chemical production rate of sulfate	atmosphere_chemical_production_of_sulfate *	1/s (kg/s)	* prefix "atmosphere" or postfix "in_atmosphere"?
chemical loss rate of SO2	atmosphere_chemical_loss_of_sulfur_dioxide *	1/s (kg/s)
sulfate aerosol optical depth	sulfate_aerosol_optical_depth	1,00E+00	optical_depth_due_to_sulfate_aerosol_
black carbon aerosol optical depth	black_carbon_aerosol_optical_depth	1,00E+00	optical_depth_due_to_black_carbon_aerosol
organic carbon aerosol optical depth	organic_carbon_aerosol_optical_depth	1,00E+00	optical_depth_due_to_organic_carbon_aerosol
dust aerosol optical depth	dust_aerosol_optical_depth	1,00E+00	optical_depth_due_to_dust_aerosol
seasalt aerosol optical depth	seasalt_aerosol_optical_depth	1,00E+00	optical_depth_due_to_seasalt_aerosol
			more species? atmosphere_optical_depth_...?
aerosol water	mass_concentration_of_aerosol_water	kg/m3