GEOS–CHEM v6–02–05
User's Guide
Contact: Bob Yantosca (bmy@io.harvard.edu)
Appendix 6: GEOS–CHEM List of Chemical Species
The following is a list of chemical species (active + inactive) in the current GEOS–CHEM chemical mechanism file globchem.dat. These species are used in the full chemistry simulation via SMVGEAR II. Many of these species are short-lived, and do not have to be transported as GEOS–CHEM tracers.
For more information and documentation, please visit the GEOS–CHEM chemistry mechanism page.
Species Code name Chemical formula Real name or description --------- ---------------- ------------------------ A3O2 CH3CH2CH2OO primary RO2 from C3H8 ACET CH3C(O)CH3 Acetone ACHO C6H5CHO Benzaldehyde ACTA CH3COOH Acetic acid ALD2 CH3CHO Acetaldehyde ALK4 RH C4,5 alkanes ATO2 RO2 from Acetone B3O2 CH3CH(OO)CH3 secondary RO2 from C3H8 C2H6 C2H6 Ethane C3H8 C3H8 Propane CH4 CH4 Methane CO CO Carbon monoxide CO2 CO2 Carbon dioxide DMS CH3SCH3 Dimethyl sulfide EOH C2H5OH Ethanol ETO2 C2H5OO Ethylperoxy radical ETP C2H5OOH Peroxide from ETO2 GCO3 HOCH2C(O)OO hydroxy peroxyacetyl radical GLCO3 HCOHC(O)OO Peroxyacyl from GLYX GLP HCOHC(O)OOH Peroxide from GLCO3 GLPAN HCOHC(O)OONO2 Peroxyacylnitrate from GLCO3 GLYC HOCH2CHO Glycolaldehyde (Hydroxyacetaldehyde) GLYX CHOCHO Glyoxal GP HOCH2C(O)OOH Peroxide from GCO3 GPAN HOCH2C(O)OONO2 Peroxyacylnitrate from GCO3 GRCO3 RC(O)OO family of peroxyacyl radicals GRPAN RC(O)OONO2 family of peroxyacylnitrates GR3O2 ROO (primary R) family of primary RO2 radicals GRO2 ROO (sec/ter R) Family of secondary/tertiary RO2 radicals H H Hydrogen atom H2 H2 Hydrogen molecule H2O H2O Water vapor H2O2 H2O2 Hydrogen peroxide HAC CH2(OH)C(O)CH3 Hydroxyacetone HCOOH HCOOH Formic acid HNO2 HNO2 Nitrous acid HNO3 HNO3 Nitric acid HNO4 HNO4 Pernitric acid HO2 HO2 Hydroperoxyl radical IALD HOCH2C(CH3)=CHCHO hydroxy carbonyl alkenes from isoprene IAO2 RO2 from isoprene oxidation products IAP Peroxide from IAO2 INO2 INO2 INPN Peroxide from ISNO2 (??) ISNO3 RNOx Stable organic nitrate ISN1 RO2 from ISN2 ISN2 CH2=C(CH3)CH(ONO2)CH2OH isoprene nitrate ISNP Peroxide from ISN1 INPN Peroxide from ISN2 ISOP C5H8 Isoprene IY Family of reactive iodine species KO2 RO2 from >C3 ketones MACR CHOC(CH2)CH3 Methacrolein MAN2 RO2 from MACR+NO3 MAO3 Peroxyacyl from MVK and MACR MAOP Peroxide from MAO3 MAP CH3C(O)OOH Peroxyacetic acid MCO3 CH3CO3 Peroxyacetyl radical MEK RC(O)R >C3 ketones MGLY CH3COCHO Methylglyoxal MNO3 CH3NO3 Methylnitrate MO2 CH3OO Methylperoxy radical MOH CH3OH Methanol MP CH3OOH Methylhydroperoxide MRO2 RO2 from MACR+OH MRP Peroxide from MRO2 MSA CH3SO3H Methane sulfionic acid MVK H2CCHC(O)CH3 Methylvinylketone N2 N2 Nitrogen molecule N2O5 N2O5 Dinitrogen pentoxide NH2 NH2 Ammonia radical NO NO Nitric oxide NO2 NO2 Nitrogen dioxide NO3 NO3 Nitrate radical O O Oxygen atom (3P) O2 O2 Oxygen molecule O2CH2OH O2CH2OH produced by CH2O+HO2 O3 O3 Ozone OH OH Hydroxyl radical PAN CH3C(O)OONO2 Peroxyacetylnitrate PMN CH2=C(CH3)C(O)OONO2 Peroxymethacryloyl nitrate (MPAN) PO2 HOC3H6O2 RO2 from propene PP HOC3H6OOH Peroxide from PO2 PPN CH3CH2C(O)OONO2 Peroxypropionylnitrate PRN1 RO2 from propene+NO3 PRPE C3H6 Propene PRPN Peroxide from PRN1 R4N1 RO2 from R4N2 R4N2 RO2NO C4,5 alkylnitrates R4O2 RO2 from ALK4 R4P Peroxide from R4O2 RA3P Peroxide from A3O2 RB3P Peroxide from B3O2 RCHO RCHO >C2 aldehydes RCO3 CH3CH2C(O)OO Peroxypropionyl radical RCOOH RCOOH >C2 organic acids RIO1 RO2 from isoprene oxidation products RIO2 RO2 from isoprene RIP Peroxide from RIO2 ROH ROH >C2 alcohols RP CH3CH2C(O)OOH Peroxide from RCO3 SO2 SO2 Sulfur Dioxide SO4 SO4 Sulfate VRO2 RO2 from MVK+OH VRP Peroxide from VRO2