Carbon gases simulation
Overview
The GEOS-Chem carbon gases simulation carbon simulation combines the chemistry reactions of the individual CH4, CO2, and tagged CO simulations. Users may configure the GEOS-Chem carbon gases simulation to use all of the advected species, or any one of the advected species.
The individual CH4, CO2, and Tagged CO simulations were removed in GEOS-Chem 14.7.0. These simulations have been superseded by the carbon gases simulation.
Reference: Bukosa, B., Fisher, J., Deutscher, N., and Jones, D. A Coupled CH4, CO and CO2 Simulation for Improved Chemical Source Modelling. Atmosphere, 14:764, 2023, DOI: 10.3390/atmos14050764.
List of species
Species |
Description |
Formula |
MW (g) |
|---|---|---|---|
CH4 |
Methane |
CH4 |
16.04 |
CO |
Carbon monoxide |
CO |
28.01 |
CO2 |
Carbon dioxide |
CO2 |
44.01 |
OCS (aka COS) |
Carbonyl sulfate |
OCS |
60.07 |
Species |
Description |
Formula |
MW (g) |
|---|---|---|---|
DummyCH4strat |
Dummy species for tropospheric CH4 (external input) |
Cl |
16.04 |
DummyCH4trop |
Dummy species for stratospheric CH4 (external input) |
CH4 |
16.04 |
DummyNMVOC |
CO produced from NMVOC oxidation (external input) |
CO |
28.01 |
FixedCl |
Atomic chlorine (external input) |
Cl |
35.45 |
FixedOH |
Hydroxyl radical (external input) |
OH |
17.01 |
LCH4byCl |
Dummy species to track loss of CH4 by Cl |
CH4 |
1.0 [1] |
LCH4byOH |
Dummy species to track loss of CH4 by OH |
CH4 |
1.0 [1] |
LCH4inStrat |
Dummy species to track the loss of CH4 in the stratopshere |
CH4 |
1.0 [1] |
LCObyOH |
Dummy species to track the loss of CO by OH |
CO |
1.0 [1] |
LCOinStrat |
Dummy species to track the loss of CO in the stratosphere |
CO |
1.0 [1] |
PCOfromCH4 |
CO produced from methane oxidation |
CO |
28.01 |
PCOfromNMVOC |
CO produced from non-methane VOCs oxidation |
CO |
28.01 |
Notes