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.
Attention
The carbon gases simulation is slated to replace the individual CH4, CO2, and tagged CO simulations, likely in GEOS-Chem version 14.7.0.
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) |
|---|---|---|---|
COfromCH4 |
CO produced from methane oxidation (carbon mechanism) |
CO |
28.01 |
COfromNMVOC |
CO produced from non-methane VOCs oxidation (carbon mechanism) |
CO |
28.01 |
CO2fromOH |
Carbon dioxide loss by OH (carbon mechanism) |
CO2 |
44.01 |
Dummy |
Dummy species (carbon mechanism) |
not listed |
1.0 |
FixedOH |
Hydroxyl radical (external input for carbon mechanism) |
OH |
17.01 |
FixedCl |
Atomic chlorine (external input for carbon mechanism) |
Cl |
35.45 |
DummyCH4 |
Methane (external input for carbon mechanism) |
CH4 |
16.04 |
DummyNMVOC |
CO produced from NMVOC oxidation (external input for carbon mechanism) |
CO |
28.01 |