GEOS-Chem v11-02 Online User's Guide

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9. GEOS-Chem Components

The table below lists major components in GEOS-Chem, their source code module filenames, and links to relevant pages on the GEOS-Chem wiki.

IMPORTANT: Running GEOS-Chem with the recommended time steps for transport and chemistry from S. Philip et al (2016) (i.e. 10 minute dynamic timestep, 20 minute chemistry timestep) has been shown to increase run times w/r/t GEOS-Chem v10-01 by approximately a factor of 2. To speed up GEOS-Chem simulations, users may choose to:

Operation Modules Wiki Pages
Aerosols (primary and secondary) aerosol_mod.F90
carbon_mod.F90
dust_mod.F90
seasalt_mod.F90
sulfate_mod.F90


Aerosol thermodynamical equilibrium isoropiaII_mod.F90
isoropiaII_code.F90
Boundary layer mixing pbl_mix_mod.F90
vdiff_mod.F90
Chemistry

flexchem_mod.F90
KPP/SOA_SVPOA/gckpp_*.F90
KPP/Standard/gckpp_*.F90
KPP/Tropchem/gckpp_*.F90

Cloud convection convection_mod.F90

Diagnostics (binary punch) diagnostics_mod.F90
diag3.F
diag*.F

NOTE: binary punch (aka bpch) format diagnostics are activated by default in GEOS-Chem v11-02. They may be deactivated with BPCH_DIAG=n.

Diagnostics
(netCDF)
diaglist_mod.F90
grid_registry_mod.F90
histcontainer_mod.F90
histitem_mod.F90
history_mod.F90
history_netcdf_mod.F90
history_util_mod.F90
metahistcontainer_mod.F90
metahistitem_mod.F90
registry_mod.F90
state_diag_mod.F90

NOTE: netCDF diagnostics are an option in GEOS-Chem v11-02. To turn them on, compile with NC_DIAG=y.

 

Dry deposition drydep_mod.F90
modis_lai_mod.F90
olson_landmap_mod.F90
Emissions Various modules in:
HEMCO/Core/
HEMCO/Extensions/
HEMCO/Interfaces/
See also: HEMCO v1.0: a versatile, ESMF-compliant component for calculating emissions in atmospheric models (Keller et al., 2014, GMD)
Geospatial grid definitions gc_grid_mod.F90
pressure_mod.F90
Met fields
(and derived quantities)
geosfp_read_mod.F90
merra2_read_mod.F90
state_met_mod.F90
Photolysis fast_jx_mod.F90
Species database species_mod.F90
species_database_mod.F90
state_chm_mod.F90
Transport pjc_pfix_mod.F90
tpcore_fvdas_mod.F90
tpcore_window_mod.F90
Wet deposition wetscav_mod.F90

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