Species in GEOS-Chem

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On this page, we provide a list of species included in GEOS-Chem v11-01 and later versions.

Overview

In GEOS-Chem v11-01 and higher versions, the distinction between tracers and species has been eliminated. We can now speak of everything as a "species". Those species that are moved around by the winds and convective mass fluxes—which were formerly called "tracers"—are now referred to as "advected species".

Please see the following resources for general information about how species are defined in GEOS-Chem:

--Bob Yantosca (talk) 17:38, 6 December 2016 (UTC)

Legend

The tables in the following sections list the species used in each of the various GEOS-Chem simulations. Several categories—corresponding to fields of the GEOS-Chem species database—are displayed. Note that some categories are only appropriate to full-chemistry simulations.

For the sake of clarity, we have omitted several species properties (i.e. Henry's law constants, dry deposition parameters, rainout & washout parameters, etc.). For a complete list of these properties, please see our Physical properties of GEOS-Chem wiki page.

Item Description
Species Abbreviated name of the species. This will be the variable name corresponding to the species in netCDF restart and output files.
Full name A longer, descriptive name for the species. This will be saved to netCDF restart and output files under the long_name variable attribute.
Molec wt Molecular weight of the species in g mol-1.

Some hydrocarbon species are carried in equivalent carbon atoms. For these species, the molecular weight of carbon (12) will be listed along with the number of carbon atoms (1C, 2C, 3C, etc) per species.

Species for which no molecular weight is displayed are non-advected species. These have lifetimes so short that they never move away from the grid box in which they are produced.

Gas or Aer Denotes whether the species is in the gas or aerosol phase. This determines how the species dry deposits and/or wet deposits.
Advect Is the species subject to advection, cloud convection, and boundary layer mixing?
Drydep Is the species subject to dry deposition?
Wetdep Is the species soluble and subject to wet deposition?
The following quantities are only relevant for full-chemistry simulations:
Formula Chemical formula of the species.
Chem Is the species contained in one of the pre-built KPP chemistry mechanisms used by GEOS-Chem?

If not, then the species will have its chemistry or loss performed outside of the KPP solver (e.g. in the aerosol modules).

Mechanisms Displays the GEOS-Chem chemistry mechanisms to which the species belongs.
Photol Is the species included in the FAST-JX photolysis mechanism?
Structure A graphic showing the molecular structure of the species.
Ox Shows the number of molecules of the species that will be included in the computation of the P(Ox) and L(Ox) diagnostic families.
Version added/updated The version this species was added to GEOS-Chem or the latest version this species was updated (if available).

--Bob Yantosca (talk) 19:35, 12 December 2016 (UTC)

Full-chemistry

The following table lists the species in the full-chemistry simulations. (NOTE: We will add the remaining chemical structure diagrams shortly.)

Species Formula Full name Molec wt
(g/mol)
Gas or Aer Chem Advect Drydep Wetdep Phot Mechanisms Structure Ox? Version
added/
updated
A3O2 CH3CH2CH2OO Primary RO2 from C3H8 Gas X All A3O2.png
ACET CH3C(O)CH3 Acetone 58.08
(12, 3C)
Gas X X X X All ACET.png
ACTA CH3C(O)OH Acetic acid 60.0 Gas X X X X All ACTA.png v11-02c
AERI I Dissolved iodine 127.0 Aer X X X X Halogens v11-02d
ALD2 CH3CHO Acetaldehyde 44.05
(12, 2C)
Gas X X X X X All ALD2.png
ALK4 ≥C4 alkanes 58.12
(12, 4C)
Gas X X All ALK4.png
ASOA1
ASOA2
ASOA3
Lumped semivolatile aerosol products of light aromatics and IVOCs 150.0 Aer X X X Complex SOA v9-02o
ASOAN Lumped nonvolatile aerosol products of light aromatics and IVOCs 150.0 Aer X X X Complex SOA v9-02o
ASOG1
ASOG2
ASOG3
Lumped semivolatile gas products of light aromatics and IVOCs 150.0 Gas X X X Complex SOA v9-02o
ATO2 CH3C(O)CH2O2 RO2 from acetone Gas X All ATO2.png
ATOOH CH3C(O)CH2OOH ATO2 peroxide Gas X X All ATOOH.png v9-02g
B3O2 CH3CH(OO)CH3 Secondary RO2 from C3H8 Gas X All B3O2.png
BCPI Hydrophilic black carbon aerosol 12.01
(12, 1C)
Aer X X X All
BCPO Hydrophobic black carbon aerosol 12.01
(12, 1C)
Aer X X X All
BENZ C6H6 Benzene 78.11
(12, 6C)
Gas X X All BENZ.png v11-02a
Br Br Atomic bromine 80.0 Gas X X All v9-01-03m
Br2 Br2 Molecular bromine 160.0 Gas X X X X X All v9-01-03m
BrCl BrCl Bromine chloride 115.0 Gas X X X Standard, UCX v10-01c
BrNO2 BrNO2 Nitryl bromide 126.0 Gas X X X All 1 v9-01-03m
BrNO3 BrNO3 Bromine nitrate 142.0 Gas X X X X All 2 v9-01-03m
BrO BrO Bromine monoxide 96.0 Gas X X X All 1 v9-01-03m
BRO2 C6H5O2 Peroxy radical from benzene oxidation Gas X All v11-02a
BrSALA Br Fine sea salt bromine 80.0 Aer X X X X Halogens v11-02d
BrSALC Br Coarse sea salt bromine 80.0 Aer X X X X Halogens v11-02d
C2H4 C2H4 Ethylene Gas X All
C2H6 C2H6 Ethane 30.07
(12, 2C)
Gas X X All
C3H8 C3H8 Propane 44.1
(12, 3C)
Gas X X All
CCl4 CCl4 Carbon tetrachloride 152.0 Gas X X X Standard, UCX v10-01c
CFC11 CCl3F CFC-11 (R-11, Freon 11) 137.0 Gas X X X Standard, UCX CFC11.png v10-01c
CFC12 CCl2F2 CFC-12 (R-12, Freon 12) 121.0 Gas X X X Standard, UCX CFC12.png v10-01c
CFC113 C2Cl3F3 CFC-113 (Freon 113) 187.0 Gas X X X Standard, UCX CFC113.png v10-01c
CFC114 C2Cl2F4 CFC-114 (R-114, Freon 114) 187.0 Gas X X X Standard, UCX CFC114.png v10-01c
CFC115 C2ClF5 CFC-115 (R-115, Freon 115) 187.0 Gas X X X Standard, UCX CFC115.png v10-01c
CH2Br2 CH2Br2 Dibromomethane 174.0 Gas X X X All v9-01-03m
CH2Cl2 CH2Cl2 Dichloromethane 85.0 Gas X X X Halogens v11-02d
CH2I2 CH2I2 Diiodomethane 268.0 Gas X X Halogens v11-02d
CH2IBr CHCIBr Bromoiodomethane 221.0 Gas X X Halogens v11-02d
CH2ICl CH2ICl Chloroiodomethane 167.0 Gas X X Halogens v11-02d
CH2O CH2O Formaldehyde 30 Gas X X X X X All
CH2OO Criegee intermediate Gas X All v11-01d
CH3Br CH3Br Methyl bromide, Bromomethane 95.0 Gas X X X All v9-01-03m
CH3CCl3 CH3CCl3 Methyl chloroform 133.0 Gas X X X Standard, UCX v10-01c
CH3CHOO Criegee intermediate Gas X All v11-01d
CH3Cl CH3Cl Chloromethane 50.0 Gas X X X Standard, UCX v10-01c
CH3I CH3I Methyl iodide 142.0 Gas X X Halogens v11-02d
CH4 CH4 Methane 16.0 Gas X X Standard, UCX v10-01c
CHBr3 CHBr3 Bromoform, Tribromomethane 253.0 Gas X X X All v9-01-03m
CHCl3 CHCl3 Chloroform 119.0 Gas X X Halogens v11-02d
Cl Cl Atomic chlorine 35.0 Gas X X Standard, UCX v10-01c
Cl2 Cl2 Molecular chlorine 71.0 Gas X X X Standard, UCX v10-01c
Cl2O2 ClOOCl Dichlorine dioxide 103.0 Gas X X X Standard, UCX 2 v10-01c
ClNO2 ClNO2 Nitryl chloride 81.0 Gas X X X Standard, UCX 1 v10-01c
ClNO3 ClONO2 Chlorine nitrate 97.0 Gas X X X Standard, UCX 2 v10-01c
ClO ClO Chlorine monoxide 51.0 Gas X X X Standard, UCX 1 v10-01c
ClOO ClOO Chlorine dioxide (Cl-OO) 67.0 Gas X X X Standard, UCX v10-01c
CO CO Carbon monoxide 28.0 Gas X X All
CO2 CO2 Carbon dioxide 44.0 Gas X All
DHDC C5H8O6 Dihydroperoxide dicarbonyl 164.0 Gas X All v11-02c
DHDN C5H10O8N2 C5 dihydroxydinitrate 226.0 Gas X X X X X All v11-02c
DHPCARP C5H9O7 Dihydroxy α-formyl peroxy radical 181.0 Gas X All v11-02c
DHMOB HOCH2C(CH3)(OH)C(=O)CHO See Paulot et al., ACP (2009) Gas X All v9-02g
DIBOO Dibble peroxy radical Gas X All v9-02g
DMS (CH3)2S Dimethylsulfide 62.0 Aer X X All
DST1 Dust aerosol,
Reff = 0.7 microns
29.0 Aer X X X All
DST2 Dust aerosol,
Reff = 1.4 microns
29.0 Aer X X X All
DST3 Dust aerosol,
Reff = 2.4 microns
29.0 Aer X X X All
DST4 Dust aerosol,
Reff = 4.5 microns
29.0 Aer X X X All
EOH C2H5OH Ethanol 46.07
(12, 2C)
Gas X X X X All v11-02a
ETHLN CHOCH2ONO2 Ethanal nitrate 105.0 Gas X X X X X All 1 v11-02c
ETO2 CH3CH2OO Ethyl peroxy radical Gas X All
ETP CH3CH2OOH Ethylhydroperoxide Gas X X All
GAOO Criegee intermediate Gas X All v11-01d
GLYC HOCH2CHO Glycoaldehyde (hydroxyacetaldehyde) 60.0 Gas X X X X X All
GLYX CHOCHO Glyoxal 58.0 Gas X X X X X All v11-02c
H H Atomic hydrogen 1.01 Gas X Standard, UCX v10-01c
H1211 CBrClF2 Halon 1211, R-12B1, Freon 12B1, BCF 165.0 Gas X X X Standard, UCX H1211.png v10-01c
H1301 CBrF3 Halon 1301, R-13B1, R-1301, Freon 13B1, Freon 1301, BTM 149.0 Gas X X X Standard, UCX H1301.png v10-01c
H2 H2 Molecular hydrogen 2.02 Gas X
(fixed)
All
H2402 C2Br2F4 Halon 2402, R-114B2 260.0 Gas X X X Standard, UCX H1301.png v10-01c
H2O H2O Water vapor 18.0 Gas X X Standard, UCX v10-01c
H2O2 H2O2 Hydrogen peroxide 34.0 Gas X X X X X All
HAC HOCH2C(O)CH3 Hydroxyacetone 74.0 Gas X X X X X All
HBr HBr Hydrobromic acid 81.0 Gas X X X X All v9-01-03m
HC187 Epoxide oxidation product m/z 187-189 187.0 Gas X X X All v11-02c
HCFC123 C2HCl2F3 HCFC-123, Freon 123, R-123 117.0 Gas X X X Standard, UCX HCFC123.png v10-01c
HCFC141b C(CH3)Cl2F HCFC-141b, Freon 141b, R-141b 117.0 Gas X X X Standard, UCX HCFC141b.png v10-01c
HCFC142b C(CH3)ClF2 HCFC-142b, Freon 142b, R-142b 117.0 Gas X X X Standard, UCX HCFC142b.png v10-01c
HCFC22 CHClF2 HCFC-22, R-22, Freon 22 86.0 Gas X X X Standard, UCX HCFC22.png v10-01c
HCl HCl Hydrochloric acid 36.0 Gas X X X X Standard, UCX v10-01c
HCOOH HCOOH Formic acid 46.0 Gas X X X X All v11-02c
HC5 HOCH2CH=C(CH3)CHO Hydroxycarbonyl with 5C Gas X All v9-02g
HC5OO Peroxy radical from HC5 Gas X All v9-02g
HI HI Hydrogen iodide 128.0 Gas X X X X Halogens v11-02d
HNO2 HONO Nitrous acid 47.0 Gas X X X All
HNO3 HNO3 Nitric acid 63.0 Gas[1] X X X X X All 1
HNO4 HNO4 Peroxynitric acid 79.0 Gas X X X All HNO4.png 1
HO2 HO2 Hydroperoxyl radical 33.01 Gas X All
HOBr HOBr Hypobromous acid 97.0 Gas X X X X X All 1 v9-01-03m
HOCl HOCl Hypochlorous acid 52.0 Gas X X X Standard, UCX 1 v10-01c
HOI HOI Hypoiodous acid 144.0 Gas X X X X Halogens v11-02d
HONIT 2nd generation monoterpene organic nitrate 215.0 Gas X X X X X All v11-02c
HPALD C5H8O3 Hydroperoxyaldehydes 116.0 Gas X X X X X All v11-02c
HPC52O2 OOCC(C(C=O)O)(O[O])C HPC52O2 165.0 Gas X All v11-02c
I I Atomic iodine 127.0 Gas X X Halogens v11-02d
I2 I2 Molecular iodine 254.0 Gas X X X X Halogens v11-02d
I2O2 I2O2 Diiodine dioxide 286.0 Gas X X X X Halogens v11-02d
I2O3 I2O3 Diiodine trixide 302.0 Gas X X X X Halogens v11-02d
I2O4 I2O4 Diiodine tetraoxide 318.0 Gas X X X X Halogens v11-02d
IAP HOCH2C(CH3)(OOH)CH(OH)CHO Peroxide from IAO2 Gas X X All
IBr IBr Iodine monobromide 207.0 Gas X X X X Halogens v11-02d
ICl ICl Iodine monochloride 162.0 Gas X X X X Halogens v11-02d
IEPOX C5H10O3 Isoprene epoxide 118.0 Gas X X X X All v9-02g
IEPOXA C5H10O3 trans-β isoprene epoxydiol 118.0 Gas X X X X All v11-02c
IEPOXB C5H10O3 cis-β isoprene epoxydiol 118.0 Gas X X X X All v11-02c
IEPOXD C5H10O3 δ isoprene epoxydiol 118.0 Gas X X X X All v11-02c
IEPOXOO RO2 from IEPOX Gas X All v9-02g
IMAE C4H6O3 C4 epoxide from oxidation of PMN 102.0 Gas X X X X All v11-02c
INDIOL Generic aerosol-phase organonitrate hydrolysis product 102.0 Aer X X X X All v11-02c
INO INO Nitrosyl iodide 157.0 Gas X X Halogens v11-02d
INO2 O2NOCH2C(OO)(CH3)CH=CH2 RO2 from ISOP+NO3 Gas X All 1
INPN O2NOCH2C(OOH)(CH3)CH=CH2 Peroxide from INO2 Gas X X All 1
IO IO Iodine monoxide 143.0 Gas X X Halogens v11-02d
IONITA Aerosol-phase organic nitrate from isoprene precursors 14.0 Aer X X X X All v11-02c
IONO IONO Nitryl iodide 173.0 Gas X X X X Halogens v11-02d
IONO2 IONO2 Iodine nitrate 189.0 Gas X X X X Halogens v11-02d
IPMN CH2=C(CH3)C(O)OONO2 Peroxymethacryloyl nitrate (MPAN) from isoprene oxidation 147.0 Gas X X X X All 1 v11-02c
ISALA I Fine sea salt iodine 127.0 Aer X X X X Halogens v11-02d
ISALC I Coarse sea salt iodine 127.0 Aer X X X X Halogens v11-02d
ISN1 C5H8NO4 Nighttime isoprene nitrate 147.0 Gas X X X X X All 1 v11-02c
ISN1OA C5H10O8N2 Aerosol-phase 2nd generation hydroxynitrates formed from ISOP+NO3 reaction pathway 226.0 Aer X X X X X All 1 v11-02c
ISN1OG C5H10O8N2 Gas-phase 2nd generation hydroxynitrates formed from ISOP+NO3 reaction pathway 226.0 Aer X X X X X All 1 v11-02c
ISNOOA Peroxy radical from ISN1 Gas X All 1 v9-02g
ISNOOB Peroxy radical from ISN1 Gas X All 1 v9-02g
ISNOHOO Peroxy radical from ISN1 Gas X All 1 v9-02g
ISNP HOCH2C(OOH)(CH3)CH(ONO2)CH2OH Isoprene nitrate Gas X X All 1
ISOA1
ISOA2
ISOA3
Lumped semivolatile aerosol products of isoprene oxidation 150.0 Aer X X X Complex SOA v9-02o
ISOG1
ISOG2
ISOG3
Lumped semivolatile gas products of isoprene oxidation 150.0 Gas X X X Complex SOA v9-02o
ISOP CH2=C(CH3)CH=CH2 Isoprene 68.12
(12, 5C)
Gas X X All ISOP.png
ISOPNB C5H9NO4 Isoprene nitrate Beta 147.0 Gas X X X X X All 1 v9-02g
ISOPNBO2 Product of ISOPNB+OH Gas X All v9-02g
ISOPND C5H9NO4 Isoprene nitrate Delta 147.0 Gas X X X X X All 1 v9-02g
ISOPNDO2 Product of ISOPND+OH Gas X All v9-02g
KO2 RO2 from > C3 ketones Gas X All
LBRO2H Dummy species to track oxidation of BRO2 by HO2 Gas X All v11-02a
LBRO2N Dummy species to track oxidation of BRO2 by NO Gas X All v11-02a
LIMO C10H16 Limonene 136.23 Gas X X X X All v11-02c
LISOPOH Dummy species to track loss of isoprene from rxn with OH Gas X All v9-02g
LISOPNO3 Dummy species to track loss of isoprene from rxn with OH Gas X All v11-02a
LNRO2H Dummy species to track oxidation of NRO2 by HO2 Gas X Complex SOA w/ SVPOA v9-02o
LNRO2N Dummy species to track oxidation of NRO2 by NO Gas X Complex SOA w/ SVPOA v9-02o
LTRO2H Dummy species to track oxidation of TRO2 by HO2 Gas X All v11-02a
LTRO2N Dummy species to track oxidation of TRO2 by NO Gas X All v11-02a
LVOC C5H14O5 Gas-phase low-volatility non-IEPOX product of ISOPOOH (RIP) oxidation 154.0 Gas X X X X All v11-02c
LVOCOA C5H14O5 Aerosol-phase low-volatility non-IEPOX product of ISOPOOH (RIP) oxidation 154.0 Gas X X X X All v11-02c
LXRO2H Dummy species to track oxidation of XRO2 by HO2 Gas X All v11-02a
LXRO2N Dummy species to track oxidation of XRO2 by NO Gas X All v11-02a
MACR CH2=C(CH3)CHO Methacrolein 70.0 Gas X X X X All
MACRN HOCH2C(ONO2)(CH3)CHO Nitrate from MACR 149.0 Gas X X X X X All 1 v9-02g
MACRNO2 Product of MACRN+OH Gas X All 1 v9-02g
MACROO Criegee intermediate Gas X All v11-01d
MAN2 HOCH2C(ONO2)(CH3)CHO RO2 from MACR+NO3 Gas X All 1
MAO3 CH2=C(CH3)C(O)OO Peroxyacyl from MVK and MACR Gas X All
MAOP CH2=C(CH3)C(O)OOH Peroxide from MAO3 Gas X X All v9-02g
MAOPO2 CH2OH-CHOO*CH3C(O)OOH Peroxy radical from MAOP (addition on the double bond) Gas X All
MAP CH3C(O)OOH Peroxyacetic acid 76.0 Gas X X X X X All
MBO Criegee intemediate Gas X All v11-01d
MBOOO Criegee intermediate Gas X All v11-01d
MCO3 CH3C(O)O Peroxyacetyl radical Gas X All
MEK RC(O)R Methyl ethyl ketone 72.11
(12, 4C)
Gas X X X All
MGLOO Criegee intermediate Gas X All v11-01d
MGLY CH3COCHO Methylglyoxyal 72.0 Gas X X X X X All v11-02a
MGLYOO Criegee intermediate Gas X All v11-01d
MNO3 CH3ONO2 Methylnitrate Gas X
(fixed)
All 1 v9-02g
MOBA HOC(=O)C(CH3)=CHCHO 5C acid from isoprene 114.0 Gas X X X All v9-02g
MOBAOO RO2 from MOBA Gas X All v9-02g
MO2 CH3O2 Methylperoxy radical Gas X All
MOH CH3OH Methanol Gas X
(fixed)
All
MONX Total monoterpenes Gas X All
MP CH3OOH Methylhydroperoxide 48.0 Gas X X X X All
MPN CH3O2NO2 Methyl peroxy nitrate 93.0 Gas X X X All 1 v9-02f
MRO2 HOCH2C(OO)(CH3)CHO RO2 from MACR+OH Gas X All
MRP HOCH2C(OOH)(CH3)CHO Peroxide from MRO2 Gas X X All
MSA CH4SO3 Methanesulfonic acid 96.0 Aer X X X X All
MTPA Lumped monoterpenes (a-pinene, b-pinene, sabinene, carene) 136.23 Gas X X X X All v11-02a
MTPO Terpinene, terpinolene, myrcene, ocimene, other monoterpenes 136.23 Gas X X X Complex SOA v9-02o
MVK CH2=CHC(=O)CH3 Methylvinylketone 70.0 Gas X X X X All
MVKN HOCH2CH(ONO2)C(=O)CH3 Nitrate from MVK 149.0 Gas X X X X X All 1 v9-02g
MVKOO Criegee intermediate Gas X All v11-01d
N N Atomic nitrogen 14.0 Gas X Standard, UCX v10-01c
N2 N2 Molecular nitrogen 28.0 Gas X
(fixed)
All
N2O N2O Nitrous oxide 44.0 Gas X X X Standard, UCX N2O.png v10-01c
N2O5 N2O5 Dinitrogen pentoxide 108.0 Gas X X X X All N2O5.png 3
NAP C10H8 Naphthalene/IVOC surrogate 128.17
(12, 10C)
Gas X Complex SOA w/ SVPOA v9-02o
NH2 NH2 Ammonia radical 16.0 Gas X
(fixed)
All
NH3 NH3 Ammonia 17.0 Gas X
(fixed)
X X X All
NH4 NH4 Ammonium 18.0 Aer X X X All
NIT Inorganic nitrates 62.0 Aer X X X All
NITs Inorganic nitrates on surface of sea salt 31.4 Aer X X X All
NO NO Nitric oxide 30.0 Gas X X X All
NO2 NO2 Nitrogen dioxide 46.0 Gas X X X X All NO2.png 1
NO3 NO3 Nitrate radical 62.0 Gas X X X All 2
NPMN CH2=C(CH3)C(O)OONO2 Non-isoprene peroxymethacryloyl nitrate (MPAN) 147.0 Gas X X X All 1 v11-02c
NRO2 Peroxy radical from naphthalene oxidation Gas X Complex SOA w/ SVPOA v9-02o
O O(3P) Ground-state atomic oxygen (3P) 16.0 Gas X Standard, UCX O.png 1 v10-01c
O1D O(1D) Excited atomic oxygen (1D) 16.0 Gas X X Standard, UCX O.png 1 v10-01c
O2 O2 Molecular oxygen 32.0 Gas X
(fixed)
All
O3 O3 Ozone 48.0 Gas X X X X All O3.png 1
OClO OClO Chlorine dioxide (OClO) Gas 67.0 X X X Standard, UCX 2 v10-01c
OCPI Hydrophilic organic carbon aerosol 12.01
(12, 1C)
Aer X X X All
OCPO Hydrophobic organic carbon aerosol 12.01
(12, 1C)
Aer X X X All
OCS COS Carbonyl sulfide, carbonyl sulphide, COS 60.0 Gas X X X Standard, UCX OCS.png v10-01c
OH OH Hydroxyl radical 17.01 Gas X All
OIO OIO Iodine dioxide 159.0 Gas X X Halogens v11-02d
OLND Monoterpene-derived NO3-alkene adduct that primarily decomposes Gas X All v11-02c
OLNN Monoterpene-derived NO3 adduct that primarily retains NO3 Gas X All v11-02c
ONIT Organic nitrate Gas X All
OPOA1
OPOA2
Lumped aerosol primary SVOCs 12.01
(12, 1C)
Aer X X X Complex SOA w/ SVPOA v9-02o
OPOG1
OPOG2
Lumped gas primary SVOCs 12.01
(12, 1C)
Gas X X X Complex SOA w/ SVPOA v9-02o
PAN CH3C(O)OONO2 Peroxyacetylnitrate 121.0 Gas X X X X All PAN.png 1
PIO2 RO2 from MTPA Gas X All v11-02a
PIP Peroxides from MTPA Gas X All v11-02a
PMNN Product of PMNO2+NO Gas X All 1 v9-02g
PMNO2 Product of PMN+OH Gas X All 1 v9-02g
PO2 HOCH2CH(OO)CH3 RO2 from propene Gas X All
POA1
POA2
Lumped aerosol primary SVOCs 12.01
(12, 1C)
Aer X X X Complex SOA w/ SVPOA v9-02o
POG1
POG2
Lumped gas primary SVOCs 12.01
(12, 1C)
Gas X X X Complex SOA w/ SVPOA v9-02o
PP HOCH2CH(OOH)CH3 Peroxide from PO2 Gas X X All
PPN CH3CH2C(O)OONO2 Peroxypropionylnitrate 135 Gas X X X All 1
PRN1 O2NOCH2CH(OO)CH3 RO2 from propene + NO3 Gas X All 1
PRPE C3H6 ≥C3 alkenes 48.08
(12, 3C)
Gas X X All
PRPN O2NOCH2CH(OOH)CH3 Peroxide from PRN1 Gas X X All 1
PROPNN CH3C(=O)CH2ONO2 Propanone nitrate 119.0 Gas X X X X X All PROPNN.png 1 v9-02g
PYAC CH3COCOOH Pyruvic acid Gas X All v9-02g
R4N1 RO2 from R4N2 Gas X All 1
R4N2 RO2NO ≥C4 alkylnitrates 119.0 Gas X X X X All 1
R4O2 RO2 from ALK4 Gas X All
R4P CH3CH2CH2CH2OOH Peroxide from R4O2 Gas X X All
RA3P CH3CH2CH2OOH Peroxide from A3O2 Gas X X All
RB3P CH3CH(OOH)CH3 Peroxide from B3O2 Gas X X All
RCHO CH3CH2CHO ≥C3 aldehydes 58.0 Gas X X X All
RCO3 CH3CH2C(O)OO Peroxypropionyl radical Gas X All
RCOOH C2H5C(O)OH >C2 organic acids Gas X
(fixed)
All
RIO2 HOCH2C(OO)(CH3)CH=CH2

(example - all isomers lumped)

RO2 from isoprene (named as ISOPO2 in the literature) 117 Gas X All RIO2.png
RIPA C5H10O3 1,2-ISOPOOH (Peroxide from RIO2) 118.0 Gas X X X X X All v11-02c
RIPB C5H10O3 4,3-ISOPOOH (Peroxide from RIO2) 118.0 Gas X X X X X All v11-02c
RIPD C5H10O3 δ(1,4 and 4,1)-ISOPOOH (Peroxide from RIO2) 118.0 Gas X X X X X All v11-02c
ROH C3H7OH >C2 alcohols Gas X All v9-01-03a
RP CH3CH2C(O)OOH Peroxide from RCO3 Gas X X All
SALA Accumulation mode sea salt aerosol 31.4 Aer X X X All
SALC Coarse mode sea salt aerosol 31.4 Aer X X X All
SO2 SO2 Sulfur dioxide 64.0 Gas X X X X All
SO4 SO4 Sulfate 96.0 Aer X X X X All
SO4s Sulfate on surface of sea salt 31.4 Aer X X X All
SOAIE C5H10O3 Aerosol-phase IEPOX 118.0 Aer X X X X All v11-02c
SOAGX C2H2O2 Aerosol-phase glyoxal 58.0 Aer X X X X All v11-02c
SOAME C4H6O3 Aerosol-phase IMAE 102.0 Aer X X X X All v11-02c
SOAMG C3H4O2 Aerosol-phase methylglyoxal 72.0 Aer X X X X All v11-02c
SOAP SOA precursor - lumped species for simplified SOA parameterization 150.0 Aer X X Standard, Tropchem, UCX v11-02c
SOAS SOA simple - simplified non-volatile SOA parameterization 150.0 Aer X X X X Standard, Tropchem, UCX v11-02c
TOLU C7H8 Toluene 92.14
(12, 7C)
Gas X X All v11-02a
TRO2 Peroxy radical from toluene oxidation Gas X All v11-02a
TSOA0
TSOA1
TSOA2
TSOA3
Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation 150.0 Aer X X X Complex SOA v9-02o
TSOG0
TSOG1
TSOG2
TSOG3
Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation 150.0 Gas X X X Complex SOA v9-02o
VRO2 HOCH2CH(OO)C(O)CH3 RO2 from MVK+OH Gas X All
VRP HOCH2CH(OOH)C(O)CH3 Peroxide from VRO2 Gas X X All
XRO2 Peroxy radical from xylene oxidation Gas X All v11-02a
XYLE C8H10 Xylene 106.16
(12, 8C)
Gas X X All v11-02a

NOTES:

  1. HNO3 dry-deposits like a gas, but wet-deposits like an aerosol. Therefore, in the GEOS-Chem species database, we give HNO3 both gas and aerosol parameters.

--Melissa Sulprizio (talk) 17:52, 14 November 2016 (UTC)
--Bob Yantosca (talk) 20:44, 13 December 2016 (UTC)

Additional dust species for acid uptake simulations

Full-chemistry simulations using the acid uptake onto dust algorithm carry species DST1, DST2, DST3, DST4, as well as these additional dust species:

Species Formula Full name Molec wt
(g/mol)
Gas or Aer Chem Advect Drydep Wetdep Phot Mechanisms Structure Ox? Version
added/
updated
DSTAL1 Dust alkalinity,
Reff = 0.7 microns
29.0 Aer X X X Acid uptake option v11-01b
DSTAL2 Dust alkalinity,
Reff = 1.4 microns
29.0 Aer X X X Acid uptake option v11-01b
DSTAL3 Dust alkalinity,
Reff = 2.4 microns
29.0 Aer X X X Acid uptake option v11-01b
DSTAL4 Dust alkalinity,
Reff = 4.5 microns
29.0 Aer X X X Acid uptake option v11-01b
NITD1 Nitrate on dust,
Reff = 0.7 microns
29.0 Aer X X X Acid uptake option v11-01b
NITD2 Nitrate on dust,
Reff = 1.4 microns
29.0 Aer X X X Acid uptake option v11-01b
NITD3 Nitrate on dust,
Reff = 2.4 microns
29.0 Aer X X X Acid uptake option v11-01b
NITD4 Nitrate on dust,
Reff = 4.5 microns
29.0 Aer X X X Acid uptake option v11-01b
SO4D1 Sulfate on dust,
Reff = 0.7 microns
29.0 Aer X X X Acid uptake option v11-01b
SO4D2 Sulfate on dust,
Reff = 1.4 microns
29.0 Aer X X X Acid uptake option v11-01b
SO4D3 Sulfate on dust,
Reff = 2.4 microns
29.0 Aer X X X Acid uptake option v11-01b
SO4D4 Sulfate on dust,
Reff = 4.5 microns
29.0 Aer X X X Acid uptake option v11-01b

--Melissa Sulprizio (talk) 17:10, 23 August 2017 (UTC)

Additional species for marine POA simulations

Full-chemistry simulations using emissions of marine primary organic aerosol (POA) carry the following additional species:

Species Formula Full name Molec wt
(g/mol)
Gas or Aer Chem Advect Drydep Wetdep Phot Mechanisms Structure Ox? Version
added/
updated
MOPI Hydrophilic marine organic carbon 12.01
(12, 1C)
Aer X X X Marine POA option v11-02c
MOPO Hydrophobic marine organic carbon 12.01
(12, 1C)
Aer X X X Marine POA option v11-02c

--Melissa Sulprizio (talk) 15:42, 23 August 2017 (UTC)

Aerosol-only

The following table lists the species in the aerosol-only simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
DMS Dimethylsulfide 62 Aer X
SO2 Sulfur dioxide 64 Gas X X X
SO4 Sulfate 96 Aer X X X
SO4s Sulfate on surface of sea salt 31.4 Aer X X X
MSA Methanesulfonic acid 96 Aer X X X
NH3 Ammonia 17 Gas X X X
NH4 Ammonium 18 Aer X X X
NIT Inorganic nitrates 62 Aer X X X
NITs Inorganic nitrates on surface of sea salt 31.4 Aer X X X
H2O2 Hydrogen peroxide 34 Gas X X X
BCPI Hydrophilic black carbon aerosol 12, 1C Aer X X X
OCPI Hydrophilic organic carbon aerosol 12, 1C Aer X X X
BCPO Hydrophobic black carbon aerosol 12, 1C Aer X X X
OCPO Hydrophobic organic carbon aerosol 12, 1C Aer X X X
DST1 Dust aerosol, Reff = 0.7 microns 29 Aer X X X
DST2 Dust aerosol, Reff = 1.4 microns 29 Aer X X X
DST3 Dust aerosol, Reff = 2.4 microns 29 Aer X X X
DST4 Dust aerosol, Reff = 4.5 microns 29 Aer X X X
SALA Accumulation mode sea salt aerosol 31.4 Aer X X X
SALC Coarse mode sea salt aerosol 31.4 Aer X X X
MTPA Lumped monoterpenes (a-pinene, b-pinene, sabinene, carene) 136.23 Gas X X X
LIMO Limonene 136.23 Gas X X X
MTPO Terpinene, terpinolene, myrcene, ocimene, other monoterpenes 136.23 Gas X X X
TSOG0 Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation 150 Gas X X X
TSOG1 Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation 150 Gas X X X
TSOG2 Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation 150 Gas X X X
TSOG3 Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation 150 Gas X X X
TSOA0 Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation 150 Aer X X X
TSOA1 Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation 150 Aer X X X
TSOA2 Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation 150 Aer X X X
TSOA3 Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation 150 Aer X X X
ISOG1 Lumped semivolatile gas products of isoprene oxidation 150 Gas X X X
ISOG2 Lumped semivolatile gas products of isoprene oxidation 150 Gas X X X
ISOG3 Lumped semivolatile gas products of isoprene oxidation 150 Gas X X X
ISOA1 Lumped semivolatile aerosol products of isoprene oxidation 150 Aer X X X
ISOA2 Lumped semivolatile aerosol products of isoprene oxidation 150 Aer X X X
ISOA3 Lumped semivolatile aerosol products of isoprene oxidation 150 Aer X X X
BENZ Benzene 12, 6C Gas X
TOLU Toluene 12, 7C Gas X
XYLE Xylene 12, 8C Gas X
ASOG1 Lumped semivolatile gas products of light aromatics and IVOCs 150 Gas X X X
ASOG2 Lumped semivolatile gas products of light aromatics and IVOCs 150 Gas X X X
ASOG3 Lumped semivolatile gas products of light aromatics and IVOCs 150 Gas X X X
ASOA1 Lumped semivolatile aerosol products of light aromatics and IVOCs 150 Aer X X X
ASOA2 Lumped semivolatile aerosol products of light aromatics and IVOCs 150 Aer X X X
ASOA3 Lumped semivolatile aerosol products of light aromatics and IVOCs 150 Aer X X X
ASOAN Lumped nonvolatile aerosol products of light aromatics and IVOCs 150 Aer X X X

--Melissa Sulprizio (talk) 22:11, 17 November 2016 (UTC)

CO2

The following table lists the species in the CO2 simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
CO2 Total carbon dioxide 44 Gas X
You may add the following species for a tagged CO2 simulation:
CO2ff CO2 from fossil fuel emissions 44 Gas X
CO2oc CO2 from ocean emissions 44 Gas X
CO2bal CO2 from balanced biosphere 44 Gas X
CO2bb CO2 from biomass burning emissions 44 Gas X
CO2bf CO2 from biofuel burning emissions 44 Gas X
CO2nte CO2 from net terrestrial exchange 44 Gas X
CO2se CO2 from ship emissions 44 Gas X
CO2av CO2 from aircraft emissions 44 Gas X
CO2ch CO2 from chemical source 44 Gas X
CO2corr CO2 from chemical source surface correction 44 Gas X
CO2bg CO2 background
(including only fossil fuel CO2)
44 Gas X
CO2xx CO2 tracers produced in various regions 44 Gas X

--Melissa Sulprizio (talk) 22:38, 17 November 2016 (UTC)

CH4

The following table lists the species in the CH4 simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
CH4 Total methane 16 Gas X
You may add the following species for a tagged CH4 simulation:
CH4og CH4 from oil & gas emissions 16 Gas X
CH4cm CH4 from coal mining emissions 16 Gas X
CH4ls CH4 from livestock emissions 16 Gas X
CH4wa CH4 from waste emissions 16 Gas X
CH4bf CH4 from biofuel burning emissions 16 Gas X
CH4ri CH4 from rice emissions 16 Gas X
CH4an CH4 from other anthropogenic emissions 16 Gas X
CH4bb CH4 from biomass burning emissions 16 Gas X
CH4we CH4 from wetland emissions 16 Gas X
CH4sa CH4 from soil absorption emissions 16 Gas X
CH4nat CH4 from other natural emissions 16 Gas X

--Melissa Sulprizio (talk) 22:38, 17 November 2016 (UTC)

Hg

The following table lists the species in the Hg simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
Hg0 Total elemental mercury 201 Gas X X
Hg2 Total divalent mercury 201 Gas X X X
HgP Total particulate mercury 201 Aer X X X
You may add the following species for tagged Hg simulation:
Hg0_can Elemental mercury from Canada anthro 201 Gas X X
Hg0_usa Elemental mercury from USA anthro 201 Gas X X
Hg0_cam Elemental mercury from Centeral America anthro 201 Gas X X
Hg0_sam Elemental mercury from South America anthro 201 Gas X X
Hg0_waf Elemental mercury from West Africa anthro 201 Gas X X
Hg0_eaf Elemental mercury from East Africa anthro 201 Gas X X
Hg0_saf Elemental mercury from South Africa anthro 201 Gas X X
Hg0_naf Elemental mercury from North Africa anthro 201 Gas X X
Hg0_eur Elemental mercury from Europe anthro 201 Gas X X
Hg0_eeu Elemental mercury from Eastern Europe anthro 201 Gas X X
Hg0_sov Elemental mercury from Former USSR anthro 201 Gas X X
Hg0_mde Elemental mercury from Middle East anthro 201 Gas X X
Hg0_sas Elemental mercury from South Asia anthro 201 Gas X X
Hg0_sov Elemental mercury from East Asia anthro 201 Gas X X
Hg0_sea Elemental mercury from Southeast Asia anthro 201 Gas X X
Hg0_jpn Elemental mercury from Japan anthro 201 Gas X X
Hg0_oce Elemental mercury from Ocean anthro 201 Gas X X
Hg0_so Elemental mercury from Organic soils 201 Gas X X
Hg0_bb Elemental mercury from Biomass burning 201 Gas X X
Hg0_geo Elemental mercury from Geogenic 201 Gas X X
Hg0_atl Elemental mercury from Middle Atlantic subsurface waters 201 Gas X X
Hg0_nat Elemental mercury from North Atlantic subsurface waters 201 Gas X X
Hg0_sat Elemental mercury from South Atlantic subsurface waters 201 Gas X X
Hg0_npa Elemental mercury from North Pacific subsurface waters 201 Gas X X
Hg0_arc Elemental mercury from Arctic subsurface waters 201 Gas X X
Hg0_ant Elemental mercury from Antarctic subsurface waters 201 Gas X X
Hg0_ocn Elemental mercury from Indo-Pacific subsurface waters 201 Gas X X
Hg0_str Elemental mercury from Stratospheric 201 Gas X X
Hg2_can Divalent mercury from Canada anthro 201 Gas X X X
Hg2_usa Divalent mercury from USA anthro 201 Gas X X X
Hg2_cam Divalent mercury from Centeral America anthro 201 Gas X X X
Hg2_sam Divalent mercury from South America anthro 201 Gas X X X
Hg2_waf Divalent mercury from West Africa anthro 201 Gas X X X
Hg2_eaf Divalent mercury from East Africa anthro 201 Gas X X X
Hg2_saf Divalent mercury from South Africa anthro 201 Gas X X X
Hg2_naf Divalent mercury from North Africa anthro 201 Gas X X X
Hg2_eur Divalent mercury from Europe anthro 201 Gas X X X
Hg2_eeu Divalent mercury from Eastern Europe anthro 201 Gas X X X
Hg2_sov Divalent mercury from Former USSR anthro 201 Gas X X X
Hg2_mde Divalent mercury from Middle East anthro 201 Gas X X X
Hg2_sas Divalent mercury from South Asia anthro 201 Gas X X X
Hg2_sov Divalent mercury from East Asia anthro 201 Gas X X X
Hg2_sea Divalent mercury from Southeast Asia anthro 201 Gas X X X
Hg2_jpn Divalent mercury from Japan anthro 201 Gas X X X
Hg2_oce Divalent mercury from Ocean anthro 201 Gas X X X
Hg2_so Divalent mercury from Organic soils 201 Gas X X X
Hg2_bb Divalent mercury from Biomass burning 201 Gas X X X
Hg2_geo Divalent mercury from Geogenic 201 Gas X X X
Hg2_atl Divalent mercury from Middle Atlantic subsurface waters 201 Gas X X X
Hg2_nat Divalent mercury from North Atlantic subsurface waters 201 Gas X X X
Hg2_sat Divalent mercury from South Atlantic subsurface waters 201 Gas X X X
Hg2_npa Divalent mercury from North Pacific subsurface waters 201 Gas X X X
Hg2_arc Divalent mercury from Arctic subsurface waters 201 Gas X X X
Hg2_ant Divalent mercury from Antarctic subsurface waters 201 Gas X X X
Hg2_ocn Divalent mercury from Indo-Pacific subsurface waters 201 Gas X X X
Hg2_str Divalent mercury from Stratospheric 201 Gas X X X
HgP_can Particulate mercury from Canada anthro 201 Aer X X X
HgP_usa Particulate mercury from USA anthro 201 Aer X X X
HgP_cam Particulate mercury from Centeral America anthro 201 Aer X X X
HgP_sam Particulate mercury from South America anthro 201 Aer X X X
HgP_waf Particulate mercury from West Africa anthro 201 Aer X X X
HgP_eaf Particulate mercury from East Africa anthro 201 Aer X X X
HgP_saf Particulate mercury from South Africa anthro 201 Aer X X X
HgP_naf Particulate mercury from North Africa anthro 201 Aer X X X
HgP_eur Particulate mercury from Europe anthro 201 Aer X X X
HgP_eeu Particulate mercury from Eastern Europe anthro 201 Aer X X X
HgP_sov Particulate mercury from Former USSR anthro 201 Aer X X X
HgP_mde Particulate mercury from Middle East anthro 201 Aer X X X
HgP_sas Particulate mercury from South Asia anthro 201 Aer X X X
HgP_sov Particulate mercury from East Asia anthro 201 Aer X X X
HgP_sea Particulate mercury from Southeast Asia anthro 201 Aer X X X
HgP_jpn Particulate mercury from Japan anthro 201 Aer X X X
HgP_oce Particulate mercury from Ocean anthro 201 Aer X X X
HgP_so Particulate mercury from Organic soils 201 Aer X X X
HgP_bb Particulate mercury from Biomass burning 201 Aer X X X
HgP_geo Particulate mercury from Geogenic 201 Aer X X X
HgP_atl Particulate mercury from Middle Atlantic subsurface waters 201 Aer X X X
HgP_nat Particulate mercury from North Atlantic subsurface waters 201 Aer X X X
HgP_sat Particulate mercury from South Atlantic subsurface waters 201 Aer X X X
HgP_npa Particulate mercury from North Pacific subsurface waters 201 Aer X X X
HgP_arc Particulate mercury from Arctic subsurface waters 201 Aer X X X
HgP_ant Particulate mercury from Antarctic subsurface waters 201 Aer X X X
HgP_ocn Particulate mercury from Indo-Pacific subsurface waters 201 Aer X X X
HgP_str Particulate mercury from Stratospheric 201 Aer X X

--Melissa Sulprizio (talk) 20:44, 21 November 2016 (UTC)

POPs

The following table lists the species in the POPs simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
POPG Gas-phase POP 178.23 (PHE)
202.25 (PYR)
252.31 (BaP)
Gas X X X
POPPOCPO Organic carbon-bound particulate 178.23 (PHE)
202.25 (PYR)
252.31 (BaP)
Aer X X X
POPPOCPI Organic carbon-bound particulate 178.23 (PHE)
202.25 (PYR)
252.31 (BaP)
Aer X X X
POPPBCPO Black carbon-bound particulate 178.23 (PHE)
202.25 (PYR)
252.31 (BaP)
Aer X X X
POPPBCPI Black carbon-bound particulate 178.23 (PHE)
202.25 (PYR)
252.31 (BaP)
Aer X X X

--Melissa Sulprizio (talk) 20:51, 21 November 2016 (UTC)

Rn-Pb-Be

The following table lists the species in the Rn-Pb-Be simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
Rn Radon-222 isotope 222 Aer X
Pb Lead-210 isotope 210 Aer X X X
Be7 Beryllium-7isotope 7 Aer X X X
PASV Passive species 1 Gas X

--Melissa Sulprizio (talk) 21:08, 21 November 2016 (UTC)

Tagged CO

The following table lists the species in the Tagged CO simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
CO Total carbon monoxide 28 Gas X
COus CO from US fossil fuel emissions 28 Gas X
COeur CO from European fossil fuel emissions 28 Gas X
COasia CO from Asian fossil fuel emissions 28 Gas X
COoth CO from other fossil fuel emissions (rest of world) 28 Gas X
CObbAm CO from South American biomass burning emissions 28 Gas X
CObbAf CO from African biomass burning emissions 28 Gas X
CObbAs CO from SE Asian biomass burning emissions 28 Gas X
CObbOc CO from Oceania biomass burning emissions 28 Gas X
CObbEu CO from European biomass burning emissions 28 Gas X
CObbNA CO from North American biomass burning emissions 28 Gas X
COch4 CO chemically produced from CH4 oxidation 28 Gas X
CObiof CO from biofuel burning emissions (whole world) 28 Gas X
COisop CO chemically produced from isoprene oxidation 28 Gas X
COmono CO chemically produced from monoterpene oxidation 28 Gas X
COmeoh CO chemically produced from methanol oxidation 28 Gas X
COacet CO chemically produced from acetone oxidation 28 Gas X

--Melissa Sulprizio (talk) 22:38, 17 November 2016 (UTC)

Tagged O3

The following table lists the species in the Tagged O3 simulation.

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
O3 Total ozone 46 Gas X X
O3Strt O3 produced in the stratosphere 46 Gas X X
You may add the following optional species:
O3UT O3 produced in the upper troposphere (above 350 hPa) 46 Gas X X
O3MT O3 produced in the middle troposphere (PBL top - 350 hPa) 46 Gas X X
O3ROW O3 produced in the rest of the world 46 Gas X X
O3PcBL O3 produced in the Pacific Ocean boundary layer 46 Gas X X
O3NABL O3 produced in the North American boundary layer 46 Gas X X
O3AtBL O3 produced in the Atlantic Ocean boundary layer 46 Gas X X
O3EuBL O3 produced in the European boundary layer 46 Gas X X
O3AfBL O3 produced in the African boundary layer 46 Gas X X
O3AsBl O3 produced in the Asian boundary layer 46 Gas X X
O3Init O3 from the initial condition 46 Gas X X
O3USA O3 produced over the United States (surface - tropopause) 46 Gas X X

--Melissa Sulprizio (talk) 21:08, 21 November 2016 (UTC)

TOMAS aerosol microphysics

There are currently 4 options for TOMAS aerosol microphysics simulations:

Option Description Compile with
TOMAS12 Uses 12 size bins (nn = 12) TOMAS12=y
TOMAS15 Uses 15 size bins (nn = 15) TOMAS15=y
TOMAS30 Uses 30 size bins (nn = 30) TOMAS30=y
TOMAS40 Uses 40 size bins (nn = 40) TOMAS40=y


TOMAS aerosol microphysics simulations carry the same species as the Tropchem simulation, plus the additional size-resolved aerosol species:

Species Full name Molec wt
(g/mol)
Gas or Aer Advect Drydep Wetdep
AW{1..nn} Aerosol water, size bins 1 - nn 18 Aer X
DUST{1..nn} Mineral dust, size bins 1 - nn
  • NOTE: These are carried in place of DST1, DST2, DST3, DST4
100 Aer X X
ECIL{1..nn} Hydrophilic elemental carbon, size bins 1 - nn 12 Aer X X
ECOB{1..nn} Hydrophobic elemental carbon, size bins 1 - nn 12 Aer X
H2SO4 Sulfuric acid 98 Gas[1] X X X
NK{1..nn} Aerosol number, size bins 1 - nn 1 Aer X X X
OCIL{1..nn} Hydrophilic organic carbon, size bins 1 - nn 12 Aer X X
OCOB{1..nn} Hydrophobic organic carbon, size bins 1 - nn 12 Aer X X
SF{1..nn} Sulfate aerosol, size bins 1 - nn 96 Aer X X
SS{1..nn} Sea salt aerosol, size bins 1 - nn 58.5 Aer X X

NOTES:

  1. The TOMAS H2SO4 species dry-deposits like a gas, but wet-deposits like an aerosol. Therefore, we need to give H2SO4 both gas-phase and aerosol parameters in the GEOS-Chem species database.

--Bob Yantosca (talk) 22:02, 13 December 2016 (UTC)

Passive species

Starting in GEOS-Chem v11-01, it is possible to add one or more passive species to any simulation type. For more information, see this wiki post on adding passive species.

--Melissa Sulprizio (talk) 21:06, 21 March 2017 (UTC)