Fullchem simulation

Overview

The GEOS-Chem fullchem (aka “full-chemistry”) simulation uses a detailed NOx-Ox-hydrocarbons-aerosols-halogens mechanism.

You may choose one of several fullchem simulation options at run directory creation time.

Option	Description
Standard	The default full chemistry simulation. Uses a simple SOA species and precursor.
Benchmark	The configuration used for performing GEOS-Chem benchmark simulations. Uses all of the species in the standard simulation, but also carries complex SOA species for diagnostic purposes.
Complex SOA	Replaces the simple SOA species and precursor with the Pye et al. [2010] complex SOA scheme.
Complex SOA plus semi-volatile POA	Replaces the simple SOA species and precursor with the Pye et al. 2010 complex SOA scheme, plus semi-volatile POA species.
Marine POA	Adds species MOPI (hydrophilic marine POA) and MOPO (hydrophobic marine POA).
Acid uptake on dust	Adds several species to track how acids are taken up by dust and other aerosols.
TOMAS	Replaces the default bulk aerosol scheme with TOMAS Aerosol Microphysics.
APM	Replaces the default bulk aerosol scheme with the APM Aerosol Microphysics.
RRTMG	Enables the RRTMG radiative transfer model, which can be used to compute radiative forcings for certain species.

Most GEOS-Chem users typically run the Standard simulation.

List of species, by option

Standard

The Standard fullchem option uses the following species:

Transported species (Standard option)

Species	Description	Formula	MW (g)
ACET	Acetone	CH3C(O)CH3	58.09
ACTA	Acetic acid	CH3C(O)OH	60.06
ACR	Acrolein	C3H4O	56.06
AERI	Iodine on aerosol	I	126.9
ALD2	Acetaldehyde	CH3CHO	44.06
ALK4	Lumped C4+C5 Alkanes	not listed	58.12
ALK4N2	Lumped alkyl nitrate from ALK4	RO2NO	119.1
ALK4P	Peroxide from ALK4O2	CH3CH2CH2CH2OOH	90.14
ALK6	Lumped >= C6 Alkanes	C7H16	100.2
AONITA	Aerosol-phase organonitrates from aromatics	C6H6O6N	189.12
APAN	Peroxyacryloyl nitrate	C3H3NO5	133.06
APINP	Hydroperoxide from APIN	C10H18O3	186.28
APINN	1st gen organic nitrate from APIN	C10H17NO4	215.28
AROMCHO	ACCOMECHO from MCM	C5H6O4	130.1
AROMP4	Generic C4 product of aromatics	C4H4O2	68.08
AROMP5	C5 unsaturated dicarbonyl	C5H6O2	98.1
AROMPN	Lumped PN from aromatics	C5H5NO8	207.1
ATOOH	ATO2 peroxide	CH3C(O)CH2OOH	90.09
BALD	Benzaldehyde	C7H6O	106.12
BCPI	Hydrophilic black carbon aerosol	C	12.01
BCPO	Hydrophobic black carbon aerosol	C	12.01
BENZ	Benzene	C6H6	78.12
BENZP	Phenyl hydroperoxide	C6H6O2	110.11
BPINO	Ketone from BPIN	C9H14O	186.28
BPINN	Saturated 1st gen BPIN organic nitrate	C10H17NO4	215.28
BPINP	Peroxide from BPIN	C10H18O3	186.28
BPINOOH	2nd-gen peroxide from BPIN	C9H14O3	186.28
BPINON	Saturated 2nd gen BPIN organic nitrate	C9H13NO4	215.28
Br	Atomic bromine	Br	79.9
Br2	Molecular Bromine	Br2	159.8
BrCl	Bromine chloride	BrCl	115.45
BrNO2	Nitryl bromide	BrNO2	125.91
BrNO3	Bromine nitrate	BrNO3	141.91
BrO	Bromine monoxide	BrO	95.9
BrSALA	Fine sea salt bromine	Br	79.9
BrSALC	Coarse sea salt bromine	Br	79.9
BUTDI	Butenedial	C4H4O2	84.07
BUTN	C4H6 alkyl nitrate	C4H7NO4	133.1
BZCO3H	Perbenzoic acid	C6H5CO3H	138.12
BZPAN	Peroxybenzoylnitrate	C7H5O5N	183.12
C96O2H	Peroxide from APIN 2nd gen	C9H16O3	186.28
C96N	Saturated 2nd gen monoterpene organic nitrate	C9H15NO4	215.28
C2H2	Acetylene (aka Ethyne)	C2H2	26.05
C2H4	Ethylene	C2H4	28.05
C2H6	Ethane	C2H6	30.08
C3H8	Propane	C3H8	44.11
C4H6	1,3-butadiene	C4H6	54.09
CCl4	Carbon tetrachloride	CCl4	153.82
CFC11	CFC-11	CCl3F	137.37
CFC113	CFC-113	C2Cl3F3	187.38
CFC114	CFC-114	C2Cl2F4	170.92
CFC115	CFC-115	C2ClF5	154.47
CFC12	CFC-12	CCl2F2	120.91
CH2Br2	Dibromomethane	CH2Br2	173.83
CH2Cl2	Dichloromethane	CH2Cl2	84.93
CH2I2	Diiodomethane	CH2I2	267.84
CH2IBr	Bromoiodomethane	CH2IBr	220.84
CH2ICl	Chloroiodomethane	CH2ICl	176.38
CH2O	Formaldehyde	CH2O	30.03
CH3Br	Methyl bromide	CH3Br	94.94
CH3CCl3	Methyl chloroform	CH3CCl3	133.35
CH3Cl	Chloromethane	CH3Cl	50.45
CH3I	Methyl iodide	CH3I	141.94
CH4	not listed	CH4	16.04
CHBr3	Bromoform	CHBr3	252.73
CHCl3	Chloroform	CHCl3	119.35
Cl	Atomic chlorine	Cl	35.45
Cl2	Molecular chlorine	Cl2	70.9
Cl2O2	Dichlorine dioxide	Cl2O2	102.91
ClNO2	Nitryl chloride	ClNO2	81.45
ClNO3	Chlorine nitrate	ClNO3	97.45
ClO	Chlorine monoxide	ClO	51.45
ClOO	Chlorine dioxide	ClOO	67.45
CLOCK	Clock tracer for diagnosing age of air	not listed	1.0
CO	not listed	CO	28.01
CSL	Cresols	C7H8O	108.14
DMS	Dimethyl sulfide	(CH3)2S	62.13
DST1	Dust aerosol, Reff = 0.7 microns	not listed	29.0
DST2	Dust aerosol, Reff = 1.4 microns	not listed	29.0
DST3	Dust aerosol, Reff = 2.4 microns	not listed	29.0
DST4	Dust aerosol, Reff = 4.5 microns	not listed	29.0
EBZ	Ethylbenzene	C8H10	106.167
EOH	Ethanol	C2H5OH	46.07
ETHLN	Ethanol nitrate	CHOCH2ONO2	105.06
ETHN	hydroxy-nitrooxy-ethane	HOCH2CH2ONO2	107.07
ETHP	hydroxy-hydroperoxy-ethane	HOCH2CH2OOH	78.07
ETNO3	Ethyl nitrate	C2H5ONO2	91.08
ETP	Ethylhydroperoxide	CH3CH2OOH	62.08
FURA	Furan	C4H4O	68.07
GLYC	Glycoaldehyde	HOCH2CHO	60.06
GLYX	Glyoxal	CHOCHO	58.04
HACTA	Hydroxyacetic/glycolic acid	HOCH2CO2H	76.0514
H1211	Halon 1211, Freon 12B1	CBrClF2	165.36
H1301	Halon 1301, Freon 13B1	CBrF3	148.91
H2402	Halon 2402	C2Br2F4	259.82
H2O	Water vapor	H2O	18.02
H2O2	Hydrogen peroxide	H2O2	34.02
HAC	Hydroxyacetone	HOCH2C(O)CH3	74.08
HBr	Hypobromic acid	HBr	80.91
HC5A	isoprene-4,1-hydroxyaldehyde	C5H8O2	100.13
HCFC123	HCFC-123, Freon 123	C2HCl2F3	152.93
HCFC141b	HCFC-141b, Freon 141b	C(CH3)Cl2F	116.94
HCFC142b	HCFC-142b, Freon 142b	C(CH3)ClF2	100.5
HCFC22	HCFC-22, Freon 22	CHClF2	86.47
HCl	Hydrochloric acid	HCl	36.45
HCOOH	Formic acid	HCOOH	46.03
HI	Hydrogen iodide	HI	127.91
HMHP	Hydroxymethyl hydroperoxide	HOCH2OOH	64.05
HMML	hydroxymethyl-methyl-a-lactone	C4H6O3	102.1
HMS	Hydroxymethanesulfonate	HOCH2SO3−	111.1
HNO2	Nitrous acid	HNO2	47.01
HNO3	Nitric acid	HNO3	63.01
HNO4	Peroxynitric acid	HNO4	79.01
HOBr	Hypobromous acid	HOBr	96.91
HOCl	Hypochlorous acid	HOCl	52.45
HOI	Hypoiodous acid	HOI	143.89
HONIT	2nd gen monoterpene organic nitrate	not listed	215.0
HPALD1	d-4,1-C5-hydroperoxyaldehyde	C5H8O3	116.13
HPALD2	d-1,4-C5-hydroperoxyaldehyde	C5H8O3	116.13
HPALD3	b-2,1-C5-hydroperoxyaldehyde	C5H8O3	116.13
HPALD4	b-3,4-C5-hydroperoxyaldehyde	C5H8O3	116.13
HPETHNL	Hydroperoxy ethanal	HOOCH2CHO	76.06
I	Atomic iodine	I	126.9
I2	Molecular iodine	I2	253.8
I2O2	Diiodine dioxide	I2O2	285.8
I2O3	Diiodine trioxide	I2O3	301.8
I2O4	Diiodine tetraoxide	I2O4	317.8
IBr	Iodine monobromide	IBr	206.9
ICHE	Isoprene hydroxy-carbonyl-epoxides	C5H8O3	116.13
ICl	Iodine monochloride	ICl	162.45
ICN	Lumped isoprene carbonyl-nitrates	C5H7NO4	145.13
ICPDH	Isoprene dihydroxy hydroperoxycarbonyl	C5H10O5	150.15
IDC	Lumped isoprene dicarbonyls	C5H6O2	98.11
IDCHP	Isoprene dicarbonyl hydroxy dihydroperoxide	C5H8O5	148.13
IDHDP	Isoprene dihydroxy dihydroperoxide	C5H12O6	168.17
IDHPE	Isoprene dihydroxy hydroperoxy epoxide	C5H10O5	150.15
IDN	Lumped isoprene dinitrates	C5H8N2O6	192.15
IEPOXA	trans-Beta isoprene epoxydiol	C4H10O3	106.14
IEPOXB	cis-Beta isoprene epoxydiol	C4H10O3	106.14
IEPOXD	Delta isoprene epoxydiol	C4H10O3	106.14
IHN1	Isoprene-d-4,1-hydroxynitrate	C5H9NO4	147.15
IHN2	Isoprene-b-1,2-hydroxynitrate	C5H9NO4	147.15
IHN3	Isoprene-b-4,3-hydroxynitrate	C5H9NO4	147.15
IHN4	Isoprene-d-4,1-hydroxynitrate	C5H9NO4	147.15
INDIOL	Generic aerosol-phase organonitrate hydrolysis product	not listed	102.0
INO	Nitrosyl iodide	INO	156.91
INPB	Lumped b-hydroperoxy isoprene nitrates	C5H9NO5	163.15
INPD	Lumped d-hydroperoxy isoprene nitrates	C5H9NO5	163.15
IO	Iodine monoxide	IO	142.9
IONITA	Aer-phase organic nitrate from isoprene precursors	not listed	14.01
IONO	Nitryl iodide	IONO	172.91
IONO2	Iodine nitrate	IONO2	188.91
IPRNO3	Isopropyl nitrate	C3H7ONO2	105.11
ISALA	Fine sea salt iodine	I	126.9
ISALC	Coarse sea salt iodine	I	126.9
ISOP	Isoprene	CH2=C(CH3)CH=CH2	68.13
ITCN	lumped isoprene tetrafunctional carbonylnitrates	C5H9NO7	195.15
ITHN	Lumped isoprene tetrafunctional hydroxynitrates	C5H11NO7	197.17
LIMAL	Aldehyde from limonene	C10H16O2	186.28
LIMKB	2nd gen ketone from limonene	C10H16O3	186.28
LIMKET	Ketone from limonene	C10H16O2	186.28
LIMN	Saturated 1st gen limonene organic nitrate	C10H17NO4	215.28
LIMNB	Saturated 1st gen LIMO organic nitrate	C10H15NO4	215.28
LIMO	Limonene	C10H16	136.26
LIMO2H	Acid from LIMO	C10H18O3	186.28
LIMO3H	Peracid from LIMO	C10H18O4	186.28
LIMPAN	PAN from LIMO	C10H17NO4	215.28
LVOC	Gas-phase low-volatility non-IEPOX product of RIP ox	C5H14O5	154.19
LVOCOA	Aer-phase low-volatility non-IEPOX product of RIP ox	C5H14O5	154.19
MACR	Methacrolein	CH2=C(CH3)CHO	70.1
MACR1OOH	Peracid from MACR	CH2=C(CH3)C(O)OOH	102.1
MAP	Peroxyacetic acid	CH3C(O)OOH	76.06
MCRDH	Dihydroxy-methacrolein	C4H8O3	104.12
MCRENOL	Lumped enols from MVK/MACR	C4H6O2	86.1
MCRHN	Nitrate from MACR	HOCH2C(ONO2)(CH3)CHO	149.11
MCRHNB	Nitrate from MACR	O2NOCH2C(OH)(CH3)CHO	149.11
MCRHP	Hydroxy-hydroperoxy-methacrolein	HOCH2C(OOH)(CH3)CHO	120.12
MCT	Catechols and methyl catechols	C7H8O2	124.0
MEK	Methyl Ethyl Ketone	RC(O)R	72.11
MEKPN	MEK peroxyacetyl nitrate	C3H5NO6	151.07
MENO3	Methyl nitrate	CH3ONO2	77.05
MGLY	Methylglyoxal	CH3COCHO	72.07
MOH	Methanol	CH3OH	32.05
MONITA	Aer-phase organic nitrate from monoterpene precursors	not listed	14.01
MONITS	Saturated 1st gen monoterpene organic nitrate	C10H17NO4	215.28
MONITU	Unsaturated 1st gen monoterpene organic nitrate	C10H17NO4	215.28
MP	Methyl hydro peroxide	CH3OOH	48.05
MPAN	Peroxymethacroyl nitrate (PMN)	CH2=C(CH3)C(O)OONO2	147.1
MPN	Methyl peroxy nitrate	CH3O2NO2	93.05
MSA	Methyl sulfonic acid	CH4SO3	96.1
MTPA	a-pinene, b-pinene, sabinene, carene	not listed	136.26
MTPO	Terpinene, terpinolene, myrcene, ocimene, other monoterpenes	not listed	136.26
MVK	Methyl vinyl ketone	CH2=CHC(=O)CH3	70.09
MVKDH	dihydroxy-MVK	HOCH2CH2OHC(O)CH3	105.13
MVKHC	MVK hydroxy-carbonyl	C4H6O3	102.1
MVKHCB	MVK hydroxy-carbonyl	C4H6O3	102.1
MVKHP	MVK hydroxy-hydroperoxide	C4H8O4	120.12
MVKN	Nitrate from MVK	HOCH2CH(ONO2)C(=O)CH3	149.12
MVKPC	MVK hydroperoxy-carbonyl	OCHCH(OOH)C(O)CH3	118.1
MYRCO	Aldehyde or ketone from myrcene	C10H18O3	186.28
N2O	Nitrous oxide	N2O	44.02
N2O5	Dinitrogen pentoxide	N2O5	108.02
NH3	Ammonia	NH3	17.04
NH4	Ammonium	NH4	18.05
NIT	Inorganic nitrates	not listed	62.01
NITs	Inorganic nitrates on surface of seasalt aerosol	not listed	31.4
NO	Nitrogen oxide	NO	30.01
NO2	Nitrogen dioxide	NO2	46.01
NO3	Nitrate radical	NO3	62.01
NPHEN	Nitrophenols	C6H5NO3	139.11
NPRNO3	n-propyl nitrate	C3H7ONO2	105.11
O3	Ozone	O3	48.0
OClO	Chlorine dioxide	OClO	67.45
OCPI	Hydrophilic organic carbon aerosol	not listed	12.01
OCPO	Hydrophobic organic carbon aerosol	not listed	12.01
OCS	Carbonyl sulfide	COS	60.07
OIO	Iodine dioxide	OIO	158.9
PAN	Peroxyacetyl nitrate	CH3C(O)OONO2	121.06
pFe	Anthropogenic iron	Fe	55.85
PHAN	Peroxyhydroxyacetic nitric anhydride	C2H3NO6	137.0483
PHEN	Phenol	C6H6O	94.11
PIN	Saturated 1st gen monoterpene organic nitrate	C10H17NO4	215.28
PINAL	Pinonaldehyde	C10H16O2	186.28
PINONIC	Pinonic acid	C10H18O3	186.28
PINO3H	Pinonic peracid	C10H18O4	186.28
PINPAN	PAN from pinonaldehyde	C10H17NO4	215.28
PIP	Peroxide from MTPA	C10H18O3	186.28
PP	Peroxide from PO2	HOCH2CH(OOH)CH3	92.11
PPN	Lumped peroxypropionyl nitrate	CH3CH2C(O)OONO2	135.08
PROPNN	Propanone nitrate	CH3C(=O)CH2ONO2	119.08
PRPE	Lumped >= C3 alkenes	C3H6	42.09
PRPN	Peroxide from PRN1	O2NOCH2CH(OOH)CH3	137.11
PYAC	Pyruvic acid	C3H4O3	88.07
R4N2	Lumped alkyl nitrate	RO2NO	119.1
R4P	Peroxide from R4O2	CH3CH2CH2CH2OOH	90.14
R7N2	C7 Lumped alkyl nitrate	RO2NO	161.2
R7P	Peroxide from R7O2	C7H16O2	132.2
RA3P	Peroxide from A3O2	CH3CH2CH2OOH	76.11
RB3P	Peroxide from B3O2	CH3CH(OOH)CH3	76.11
RCHO	Lumped aldehyde >= C3	CH3CH2CHO	58.09
RCOOH	> C2 organic acids	C2H5C(O)OH	74.09
RIPA	1,2-ISOPOOH	C5H10O3	118.15
RIPB	4,3-ISOPOOH	C5H10O3	118.15
RIPC	d-1,4-ISOPOOH	C5H10O3	118.15
RIPD	d-4,1-ISOPOOH	C5H10O3	118.15
RNO3	Lumped aromatic nitrate	RO2NO	203.15
RP	Peroxide from RCO3	CH3CH2C(O)OOH	90.09
SALA	Fine (0.01-0.05 microns) sea salt aerosol	not listed	31.4
SALAAL	Accumulation mode sea salt alkalinity	not listed	31.4
SALACL	Chloride in Accumulation mode sea salt aerosol	not listed	35.45
SALC	Coarse (0.5-8 microns) sea salt aerosol	not listed	31.4
SALCAL	Coarse mode sea salt alkalinity	not listed	31.4
SALCCL	Chloride in Coarse mode sea salt aerosol	not listed	35.45
SO2	Sulfur dioxide	SO2	64.04
SO4	Sulfate	SO4	96.06
SO4s	Sulfate on surface of seasalt aerosol	not listed	31.4
SOAGX	Aerosol-phase glyoxal	C2H2O2	58.04
SOAIE	Aerosol-phase IEPOX	C5H10O3	118.15
SOAP	SOA Precursor - lumped species for simplified SOA parameterization	not listed	150.0
SOAS	SOA Simple - simplified non-volatile SOA parameterization	not listed	150.0
STYR	Styrene	C8H8	104.1491
TLFUONE	Aromatic furanones	C5H6O2	98.1
TMB	Trimethylbenzenes	C8H10	106.167
TOLU	Toluene	C7H8	92.15
XYLE	Xylene	C8H10	106.18

Non-transported species (Standard option)

Species	Description	Formula	MW (g)
A3O2	Primary peroxy radical from C3H8	CH3CH2CH2OO	75.1
ACRO2	Peroxy radical from ACR	C3H5O4	105.07
ACO3	Peroxyacetyl radical for APAN	C3H3O3	87.054
ALK4N1	Peroxy radical from ALK4N2	C4H8NO5	150.13
ALK4O2	Peroxy radical from ALK4	C4H9O2	89.13
AROMRO2	hydroxy-peroxy radical from aromatics	C6H7O3	127.0
AROMCO3	Lumped aromatic peroxyacetyl radical	C5H5O6	161.09
ATO2	Peroxy radical from acetone	CH3C(O)CH2O2	89.08
B3O2	B3O2	CH3CH(OO)CH3	75.1
BENZO	alkoxy radical from aromatics	C6H5O	93.0
BENZO2	peroxy radical from aromatics	C6H5O2	109.0
BRO2	Peroxy radical from BENZ oxidation	C6H7O5	159.13
BUTO2	peroxy radical from C4H6	C4H7O3	103.097
BZCO3	Acyl peroxy radical from benzaldehyde	C7H5O3	137.0
C4HVP1	C4 hydroxy-vinyl peroxy radicals from HPALDS	C4H7O3	103.11
C4HVP2	C4 hydroxy-vinyl peroxy radicals from HPALDS	C4H7O3	103.11
CH2OO	Criegee intermediate	CH2OO	46.03
CH3CHOO	Criegee intermediate	CH3CHOO	60.06
CO2	Carbon dioxide	CO2	44.01
ETO	alkoxy radical from ETOO	HOCH2CH2O	61.06
ETOO	peroxy radical from ethene	HOCH2CH2OO	77.06
ETO2	ETO2	CH3CH2OO	61.07
GCO3	Peroxyacetyl radical for PHAN	HOCH2CO3	91.0428
H	Atomic hydrogen	H	1.01
HO2	Hydroperoxyl radical	HO2	33.01
HPALD1OO	HPALD1OO	C5H7O5	147.12
HPALD2OO	HPALD2OO	C5H7O5	147.12
ICHOO	Peroxy radical from IEPOXD	C5H9O5	149.14
ICNOO	Peroxy radicals from ICN	C5H8NO7	194.14
IDHNBOO	Peroxy radicals from INPB	C5H10NO7	196.16
IDHNDOO1	Peroxy radicals from INPD	C5H10NO7	196.16
IDHNDOO2	Peroxy radicals from INPD	C5H10NO7	196.16
IDNOO	IDNOO	C5H9N2O6	241.14
IEPOXAOO	Peroxy radical from trans-Beta isoprene epoxydiol	C5H8O5	149.14
IEPOXBOO	peroxy radical from cis-Beta isoprene epoxydiol	C5H9O5	149.14
IHOO1	Peroxy radical from OH addition to isoprene at C1	C5H9O3	117.14
IHOO4	Peroxy radical from OH addition to isoprene at C4	C5H9O3	117.14
IHPNBOO	Peroxy radicals from INPB	C5H10NO8	212.16
IHPNDOO	Peroxy radicals from INPD	C5H10NO8	212.16
IHPOO1	Peroxy radical from ISOPOOH	C5H11O6	167.16
IHPOO2	Peroxy radical from ISOPOOH	C5H11O6	167.16
IHPOO3	Peroxy radical from ISOPOOH	C5H11O6	167.16
INA	Alkoxy radical from INO2D	C5H8NO4	146.14
INO2B	beta-peroxy radicals from isoprene + NO3	C5H8NO5	162.14
INO2D	delta-peroxy radicals from isoprene + NO3	C5H8NO5	162.14
ISOPNOO1	Peroxy radicals from IHN2	C5H10NO7	196.16
ISOPNOO2	Peroxy radicals from IHN3	C5H10NO7	196.16
KO2	Peroxy radical from >3 ketones	C4H5O3	101.09
LBRO2H	Dummy species to track oxidation of BRO2 by HO2	not listed	159.13
LBRO2N	Dummy species to track oxidation of BRO2 by NO	not listed	159.13
LIMO2	Peroxy radical from LIMO	C10H17O3	185.27
APINO2	Peroxy radical from APIN	C10H17O3	185.27
PINO3	Acylperoxy radical from APIN	C10H17O3	185.27
C96O2	2nd-gen peroxy radical from APIN	C10H17O3	185.27
BPINO2	Peroxy radical from BPIN	C10H17O3	185.27
BPINOO2	2nd-gen peroxy radical from BPIN	C10H17O3	185.27
LIMKO2	2nd-gen peroxy radical from LIMO	C10H17O3	185.27
LIMO3	Acylperoxy radical from LIMO	C10H17O3	185.27
LISOPOH	Dummy species to track oxidation of ISOP by OH	not listed	68.13
LISOPNO3	Dummy species to track oxidation of ISOP by NO3	not listed	68.13
LNRO2H	Dummy species to track oxidation of NRO2 by HO2	not listed	159.17
LNRO2N	Dummy species to track oxidation of NRO2 by NO	not listed	159.17
LTRO2H	Dummy species to track oxidation of TRO2 by HO2	not listed	173.16
LTRO2N	Dummy species to track oxidation of TRO2 by NO	not listed	173.16
LXRO2H	Dummy species to track oxidation of XRO2 by HO2	not listed	187.19
LXRO2N	Dummy species to track oxidation of XRO2 by NO	not listed	187.19
MACR1OO	Peroxyacyl radical from MACR + OH	CH2=C(CH3)C(O)OO	101.09
MACRNO2	Product of MCRHN + OH	C4H6NO7	180.1
MCO3	Peroxyacetyl radical	CH3C(O)OO	75.05
MCROHOO	Peroxy radical from MACR + OH	C4H7O4	119.11
MEKCO3	not listed	C3H5O4	105.07
MO2	Methylperoxy radical	CH3O2	47.04
MVKOHOO	Peroxy radical from MVK + OH	C4H7O4	119.11
N	Atomic nitrogen	N	14.01
NAP	Naphtalene/IVOC surrogate	C10H8	128.18
NRO2	Peroxy radical from NAP oxidation	C10H7O2	159.17
O	Ground state atomic oxygen	O(3P)	16.0
O1D	Excited atomic oxygen (1D)	O(1D)	16.0
OH	Hydroxyl radical	OH	17.01
OLND	Monoterpene-derived NO3-alkene adduct	C10H16NO5	230.27
OLNN	Monoterpene-derived NO3 adduct	C10H16NO5	230.27
OTHRO2	Other C2 RO2 not from C2H6 oxidation	CH3CH2OO	61.07
PIO2	Peroxy radical from MTPA	C10H17O3	185.27
PO2	Peroxy radical from propene	HOCH2CH(OO)CH3	91.1
PRN1	Peroxy radical from propene + NO3	O2NOCH2CH(OO)CH3	136.09
R4N1	Peroxy radical from R4N2	C4H8NO5	150.13
R4O2	Peroxy radical from isoprene and MTPA alkyl generation	C4H9O2	89.13
R7O2	Peroxy radical from ALK6	C7H15O2	131.19
R7N1	Peroxy radical from R7N2	C7H15NO5	161.2
RCO3	Peroxypropionyl radical	CH3CH2C(O)OO	89.08
ROH	> C2 alcohols	C3H7OH	60.11
TLFUO2	not listed	C5H7O5	147.1
TRO2	Peroxy radical from TOLU oxidation	C7H9O5	173.16
XRO2	Peroxy radical from TOLU oxidation	C8H11O5	187.19
PH2SO4	SO4 from gas-phase chemistry	not listed	96.06
PSO4AQ	SO4 from cloud chemistry	not listed	96.06
ZRO2	RO2 for making lumped aromatic nitrate	C7H9O5	173.16
H2	Molecular hydrogen	H2	2.02
N2	Molecular nitrogen	N2	28.02
O2	Molecular oxygen	O2	32.0

Benchmark

Fullchem simulations with the Benchmark option allow the `GEOS-Chem Support Team <https://geoschem.github.io/support-team.html`_ `to perform simulations that document the performance and evolution of GEOS-Chem over time.

Benchmark simulations use all of the Standard species, as well as the Complex SOA species listed below. However, the complex SOA species are carried solely for diagnostic purposes.

Complex SOA

Fullchem simulations with Complex SOA option use all of the Standard species, plus 15 additional transported species.

Additional transported species (Complex SOA)

Species	Description	MW (g)
ASOA1	Lumped non-volatile aerosol products of light aromatics + IVOCs	150.0
ASOA2	Lumped non-volatile aerosol products of light aromatics + IVOCs	150.0
ASOA3	Lumped non-volatile aerosol products of light aromatics + IVOCs	150.0
ASOAN	Lumped non-volatile aerosol products of light aromatics + IVOCs	150.0
ASOG1	Lumped non-volatile gas products of light aromatics + IVOCs	150.0
ASOG2	Lumped non-volatile gas products of light aromatics + IVOCs	150.0
ASOG3	Lumped non-volatile gas products of light aromatics + IVOCs	150.0
TSOA0	Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation	150.0
TSOA1	Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation	150.0
TSOA2	Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation	150.0
TSOA3	Lumped semivolatile aerosol products of monoterpene + sesquiterpene oxidation	150.0
TSOG0	Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation	150.0
TSOG1	Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation	150.0
TSOG2	Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation	150.0
TSOG3	Lumped semivolatile gas products of monoterpene + sesquiterpene oxidation	150.0

You may archive several complex SOA diagnostic quantities to the AerosolMass History collection.

Complex SOA plus semi-volatile POA

Fullchem simulations with Complex SOA plus semi-volatile POA use all of the Standard species and Complex SOA species, plus several additional transported primary organic aerosol species.

Additional transported species (Complex SOA with SVPOA)

Species	Description	MW (g)
OPOA1	Lumped aerosol product of SVOC oxidation	12.01
OPOA2	Lumped aerosol product of SVOC oxidation	12.01
OPOG1	Lumped gas product of SVOC oxidation	12.01
OPOG2	Lumped gas product of SVOC oxidation	12.01
POA1	Lumped aerosol primary SVOCs	12.01
POA2	Lumped aerosol primary SVOCs	12.01
POG1	Lumped gas primary SVOCs	12.01
POG2	Lumped gas primary SVOCs	12.01

Marine POA

Fullchem simulations with Marine POA use all of the Standard species, plus two additional transported aerosol species.

Additional transported species (Marine POA)

Species	Description	Formula	MW (g)
MOPI	Hydrophilic marine organic carbon aerosol	C	12.01
MOPO	Hydrophobic marine organic carbon aerosol	C	12.01

Acid uptake on dust

Fullchem simulations with Acid uptake on dust use all of the Standard species, plus 12 additional transported species.

Additional transported species (Acid uptake on dust)

Species	Description	MW (g)
DSTAL1	Dust alkalinity, Reff = 0.7 \(\mu\text{m}\)	29.0
DSTAL2	Dust alkalinity, Reff = 1.4 \(\mu\text{m}\)	29.0
DSTAL3	Dust alkalinity, Reff = 2.4 \(\mu\text{m}\)	29.0
DSTAL4	Dust alkalinity, Reff = 4.5 \(\mu\text{m}\)	29.0
NITD1	Nitrate on dust, Reff = 0.7 \(\mu\text{m}\)	29.0
NITD2	Nitrate on dust, Reff = 1.4 \(\mu\text{m}\)	29.0
NITD3	Nitrate on dust, Reff = 2.4 \(\mu\text{m}\)	29.0
NITD4	Nitrate on dust, Reff = 4.5 \(\mu\text{m}\)	29.0
SO4D1	Sulfate on dust, Reff = 0.7 \(\mu\text{m}\)	29.0
SO4D2	Sulfate on dust, Reff = 1.4 \(\mu\text{m}\)	29.0
SO4D3	Sulfate on dust, Reff = 2.4 \(\mu\text{m}\)	29.0
SO4D4	Sulfate on dust, Reff = 4.5 \(\mu\text{m}\)	29.0

TOMAS aerosol microphysics

Fullchem simulations with TOMAS aerosol microphysics use all of the Standard species, plus several additional size-resolved aerosol species. Note that the bulk dust species (DST1, DST2, DST3, DST4) species are replaced with size-resolved dust species (DUST1 .. DUST40).

Additional transported species (TOMAS)

Species	Description	MW (g)
AW01 .. AW40	Aerosol water, size bins 1 .. 40	18.0
DUST01 .. DUST40	Mineral dust, size bins 1 .. 40	100.0
ECIL01 .. ECIL40	Hydrophilic elemental carbon, size bins 1 .. 40	12.01
ECOB01 .. ECOB40	Hydrophobic elemental carbon, size bins 1 .. 40	12.01
H2SO4:	Sulfuric acid	98.0
NK01 .. NK40	Aerosol number, size bins 1..40	1.0
OCIL01 .. OCIL40	Hydrophilic organic carbon, size bins 1 .. 40	12.01
OCOB01 .. OCOB40	Hydrophilic organic carbon, size bins 1 .. 40	12.01
SF01 .. SF40	Sulfate aerosol, size bins 1 .. 40	96.0
SS01 .. SS40	Sea salt aerosol, size bins 1 .. 40	58.5

You must request TOMAS aerosol microphysics at configuration time. You may select either TOMAS with 15 size-resolved bins or with 40 size-resolved bins. Please see this section for configuration and compilation instructions.

You may archive several TOMAS diagnostic quantities to the TOMAS History collection.

APM aerosol microphysics

Fullchem simulations with APM aerosol microphysics use all species listed in the Standard, as well as the following species:

Additional transported species (APM)

Species	Description	MW (g)
APMAMINE1	APM amines 1	31.0
APMAMINE2	APM amines 2	45.0
APMAMINE3	APM amines 3	59.0
APMBCBIN01 .. APMBCBIN15	APM black carbon, size bins 01 .. 15	12.01
APMCTBC1	APM CTSO4	96.0
APMCTBC2	APM CTSLVSOA	181.0
APMCTDST1	APM CTSO4	96.0
APMCTDST2	APM CTLVSOA	181.0
APMCTOC1	APM CTSO4	96.0
APMCTOC2	APM CTLVSOA	181.0
APMCTSEA1	APM CTSO4	96.0
APMCTSEA2	APM CTLVSOA	181.0
APMDSTBIN01 .. APMDSTBIN15	APM Dust	29.0
APMH2SO4	APM sulfuric acid	98.0
APMLVSOA	APM LVSOA	181.0
APMLVSOG	APM LV secondary organic gas	181.0
APMOCBIN01 .. APMOCBIN15	APM organic carbon, size bins 01 .. 15	12.01
APMSEABIN01 .. APMSEABIN20	APM sea salt, size bins 01 .. 20	12.01
APMSPBIN01 .. APMSPBIN40	APM sulfate, size bins 01 .. 40	96.0

You must request APM aerosol microphysics at configuration time. Please see this section for configuration and compilation instructions.

RRTMG radiative transfer model

Fullchem simulations with the RRTMG radiative transfer model use the Standard species. No additional species are included. Radiative forcing diagnostics can be archived to the RRTMG History collection.