GEOS-Chem 13.2.0

GEOS-Chem Versions Page

This page includes information about GEOS-Chem 13.2.0 which is currently in development.

Version overview

The following items have been added to GEOS-Chem 13.2.0 since the last benchmark for GEOS-Chem 13.1.0. See also the 13.2.0 milestone on Github.

Feature	Contributor(s)	Model scope	Notes
Updates that will affect full-chemistry simulations
CEDS v2 emissions through 2019	Patrick Campbell (NOAA-ARL) Melissa Sulprizio (GCST)	Emissions	See geoschem/geos-chem #757
Updated Yuan/BNU MODIS LAI product (2000-2019)	Jenny Fisher (U. Wollongong) Melissa Sulprizio (GCST)	Emissions Dry deposition	See geoschem/geos-chem #717
Improved wet scavenging from Luo et al. (2020) (as option)	Gan Luo (Albany) Fangqun Yu (Albany) Bob Yantosca (GCST)	Wet deposition	See geoschem/geos-chem #779 These updates will replace the Luo et al. (2019) option
Blowing snow emissions of sea salt and sea salt bromide	Lyatt Jaegle (UW) Lizzie Lundgren (GCST)	Emissions	See geoschem/geos-chem #356
Bug fixes: Add carbon to species scale factors to AEIC VOC emissions Fix molecular weight of ethanol (EOH) in species_database.yml Fix typo in CloudHet function in gckpp_HetRates.F90	Christoph Keller (GMAO) Viral Shah (Harvard)	Emissions (1,2) Chemistry (3)	See geoschem/geos-chem #776 (1,2) See geoschem/geos-chem #743 (3)
Updates that will NOT affect full-chemistry simulations
ObsPack pressure units are now in Pa instead of hPa	Eloise Marais (Birmingham)	Diagnostics	See geoschem/geos-chem #747
Add lon & lat bounds to GEOS-Chem Classic History output	Chris Holmes (FSU)	Diagnostics	See geoschem/geos-chem #774
Trace metal simulation	Junwei Xu (Dalhousie) Bob Yantosca (GCST)	Specialty simulation	See geoschem/geos-chem #769 Daily data files are very large; we have compressed some. Added trace metal species as a standalone simulation, so as not to burden other simulations with large data I/O
Features only affecting GCHP:
Set lev positive 'up' for all diagnostic files except Emissions	Lizzie Lundgren (GCST)	Output	See geoschem/MAPL PR #10 See geoschem/GCHP issue #112

New data directories

The following data directories have been added or updated in this version. You will have to download the directories relevant to your simulation.

Inventory	Type	What was added?	Directory
CEDS	Default	CEDS v2 emissions through 2019	HEMCO/CEDS/v2021-06
Yuan-processed MODIS LAI	Default	Updated BNU v6/Yuan-processed MODIS LAI product (2000-2020)	HEMCO/Yuan_XLAI/v2021-06
TRACE_METALS	Optional	Canadian (CAC) and US (NATA) emissions (2011-2013) for the trace metals specialty simulation	HEMCO/TRACE_METALS/v2021-06
MULTI_ICE	Default	Multi-year sea ice fraction for blowing snow from sea salt aerosol	HEMCO/MULTI_ICE/v2021-07

1-month benchmarks

Model setup

The following table describes the GEOS-Chem setup for both GEOS-Chem Classic and GCHP 1-month benchmark simulations.

Git tag(s):	13.2.0-beta.0
Compared to previous benchmark:	13.1.0
Software environment:	ifort 19.0.5 OpenMPI 4.0.1 netcdf-fortran 4.5.2 CMake 3.16.1 ESMF 8.0.1
Model resolution:	GEOS-Chem Classic: 4° x 5° GCHP: c48
Meteorology fields:	MERRA-2 GEOS-Chem Classic: 4° x 5° GCHP: 0.5° x 0.625°
Initial conditions:	July 1, 2019 from 13.0.0 10-year benchmark NOTE: GCHP c48 restart file regridded from GEOS-Chem Classic 4° x 5°
Benchmark month:	July 2019
This version will impact: (select all that apply with boldface)	Advection BL Mixing Convection Meteorology Fields Dry Deposition Wet Deposition Emissions Photolysis Chemistry Other (please specify):

Benchmark Plots and Tables

NOTES:

• Enable PDF bookmarks in the file links to navigate between species. See the Species in GEOS-Chem wiki page for species definitions and details. If you do not see bookmarks in your browser try using a different browser (not Safari) or installing an Adobe Acrobat plug-in.
• Species categories and lumped species are defined in YAML files within the GEOS-Chem post-processing software GCPy.

GEOS-Chem Classic 13.2.0 vs 13.1.0

Below are links to plots and tables comparing 1-month simulations for GEOS-Chem Classic 13.2.0 (Dev) and GEOS-Chem Classic 13.1.0 (Ref).

Species Category	Plots					Additional Information
	Level Map		Zonal Mean		Emissions
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere	sfc
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere	sfc	AOD
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere	sfc
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere	--
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere	sfc
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere	sfc
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere	sfc
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere	sfc
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere	sfc
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere	sfc
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere	--
J-values	sfc	500hPa	full column	stratosphere	--	--
Emissions by HEMCO category	Total Aircraft, Anthropogenic, Biomass Burning, Biogenic, Lightning, Natural, Ocean, Seabirds, Decaying Plants, Ship, Soil, Degassing Volcanoes, Erupting Volcanoes
Emission totals	Tables by species Tables by inventory
Global mass	Entire atmosphere Troposphere only
Metrics	OH concentration, MCF lifetime, CH4 lifetime
Budgets	Budgets after operations

GCHP 13.2.0 vs 13.1.0

Below are links to plots and tables comparing 1-month simulations for GCHP 13.2.0 (Dev) and GCHP 13.1.0 (Ref).

Species Category2	Plots					Additional Information
	Level Map		Zonal Mean		Emissions
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere	sfc
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere	sfc	AOD
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere	sfc
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere	--
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere	sfc
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere	sfc
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere	sfc
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere	sfc
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere	sfc
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere	sfc
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere	--
J-values	sfc	500hPa	full column	stratosphere	--	--
Emissions by HEMCO category	Total Aircraft, Anthropogenic, Biomass Burning, Biogenic, Lightning, Natural, Ocean, Seabirds, Decaying Plants, Ship, Soil, Degassing Volcanoes, Erupting Volcanoes
Emission totals	Tables by species Tables by inventory
Global mass	Entire atmosphere Troposphere only
Budgets	Budgets after operations

GCHP 13.2.0 vs GEOS-Chem Classic 13.2.0

Below are links to plots and tables comparing 1-month simulations for GCHP 13.2.0 (Dev) and GEOS-Chem Classic 13.2.0 (Ref).

Species Category2	Plots					Additional Information
	Level Map		Zonal Mean		Emissions
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere	sfc
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere	sfc	AOD
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere	sfc
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere	--
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere	sfc
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere	sfc
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere	sfc
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere	sfc
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere	sfc
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere	sfc
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere	--
J-values	sfc	500hPa	full column	stratosphere	--	--
Emissions by HEMCO category	Total Aircraft, Anthropogenic, Biomass Burning, Biogenic, Lightning, Natural, Ocean, Seabirds, Decaying Plants, Ship, Soil, Degassing Volcanoes, Erupting Volcanoes
Emission totals	Tables by species Tables by inventory
Global mass	Entire atmosphere Troposphere only
Budgets	Budgets after operations

GCHP vs GEOS-Chem Classic difference of differences

This table contains plots comparing the difference [GCHP 13.2.0 - GCHP 13.1.0] against the difference [GC Classic 13.2.0 - GC Classic 13.1.0], taken from 1-month benchmark simulations.

Category	Plots
	Level Map		Zonal Mean
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere

NOTE: At present diff-of-diffs plots are only generated for species concentrations.

GEOS-Chem Classic 13.2.0+LuoWetdep vs 13.2.0

Below are links to plots and tables comparing 1-month simulations for GEOS-Chem Classic 13.2.0 with the Luo et al. (2020) wet deposition scheme (Dev) and GEOS-Chem Classic 13.2.0 (Ref).

Species Category	Plots					Additional Information
	Level Map		Zonal Mean		Emissions
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere	sfc
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere	sfc	AOD
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere	sfc
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere	--
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere	sfc
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere	sfc
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere	sfc
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere	sfc
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere	sfc
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere	sfc
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere	--
J-values	sfc	500hPa	full column	stratosphere	--	--
Emissions by HEMCO category	Total Aircraft, Anthropogenic, Biomass Burning, Biogenic, Lightning, Natural, Ocean, Seabirds, Decaying Plants, Ship, Soil, Degassing Volcanoes, Erupting Volcanoes
Emission totals	Tables by species Tables by inventory
Global mass	Entire atmosphere Troposphere only
Metrics	OH concentration, MCF lifetime, CH4 lifetime
Budgets	Budgets after operations

GCHP 13.2.0+LuoWetdep vs 13.2.0

Below are links to plots and tables comparing 1-month simulations for GCHP 13.2.0 with the Luo et al. (2020) wet deposition scheme (Dev) and GCHP 13.2.0 (Ref).

Species Category2	Plots					Additional Information
	Level Map		Zonal Mean		Emissions
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere	sfc
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere	sfc	AOD
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere	sfc
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere	--
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere	sfc
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere	sfc
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere	sfc
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere	sfc
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere	sfc
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere	sfc
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere	--
J-values	sfc	500hPa	full column	stratosphere	--	--
Emissions by HEMCO category	Total Aircraft, Anthropogenic, Biomass Burning, Biogenic, Lightning, Natural, Ocean, Seabirds, Decaying Plants, Ship, Soil, Degassing Volcanoes, Erupting Volcanoes
Emission totals	Tables by species Tables by inventory
Global mass	Entire atmosphere Troposphere only
Budgets	Budgets after operations

GCHP 13.2.0+LuoWetdep vs GEOS-Chem Classic 13.2.0+LuoWetdep

Below are links to plots and tables comparing 1-month simulations for GCHP 13.2.0 (Dev) and GEOS-Chem Classic 13.2.0 (Ref), both using the Luo et al. (2020) wet deposition scheme.

Species Category2	Plots					Additional Information
	Level Map		Zonal Mean		Emissions
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere	sfc
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere	sfc	AOD
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere	sfc
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere	--
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere	sfc
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere	sfc
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere	sfc
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere	sfc
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere	sfc
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere	sfc
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere	--
J-values	sfc	500hPa	full column	stratosphere	--	--
Emissions by HEMCO category	Total Aircraft, Anthropogenic, Biomass Burning, Biogenic, Lightning, Natural, Ocean, Seabirds, Decaying Plants, Ship, Soil, Degassing Volcanoes, Erupting Volcanoes
Emission totals	Tables by species Tables by inventory
Global mass	Entire atmosphere Troposphere only
Budgets	Budgets after operations

GCHP vs GEOS-Chem Classic difference of differences for LuoWetdep

This table contains plots comparing the difference [GCHP 13.2.0+LuoWetdep - GCHP 13.2.0] against the difference [GC Classic 13.2.0+LuoWetdep - GC Classic 13.2.0], taken from 1-month benchmark simulations.

Category	Plots
	Level Map		Zonal Mean
Oxidants O3, CO, OH, NOx	sfc	500hPa	full column	stratosphere
Aerosols DST1, DST2, DST3, DST4, NH4, NIT, SO4, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA	sfc	500hPa	full column	stratosphere
Bromine Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr	sfc	500hPa	full column	stratosphere
Chlorine Cly, ClOx, Cl, ClO, Cl2, Cl2O2, ClOO, ClNO2, ClNO3, CCl4, CFCs, CH3Cl, CH2Cl2, CH3CCl3, CHCl3, HOCl, HCl, Halons, HCFCs, OClO	sfc	500hPa	full column	stratosphere
Iodine Iy, IxOy, I, I2, IBr, ICl, IO, IONO, IONO2, CH3I, CH2I2, CH2ICl, CH2IBr, HI, HOI, OIO	sfc	500hPa	full column	stratosphere
Nitrogen NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3	sfc	500hPa	full column	stratosphere
Primary Organics EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE	sfc	500hPa	full column	stratosphere
Secondary Organics ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, MEK, MVK, ISOPN, GLYX, HCOOH, MAP, RCHO, MP	sfc	500hPa	full column	stratosphere
Secondary Organic Aerosols TSOA0, TSOA1, TSOA2, TSOA3, ASOA1, ASOA2, ASOA3, ASOAN, TSOG0, TSOG1, TSOG2, TSOG3, ASOG1, ASOG2, ASOG3, INDIOL, LVOCOA, SOAIE, SOAGX, SOAP, SOAS	sfc	500hPa	full column	stratosphere
Sulfur SOx, DMS, OCS, SO2, SO4	sfc	500hPa	full column	stratosphere
ROy H2O2, H, H2, H2O, HO2, O1D, OH, RO2	sfc	500hPa	full column	stratosphere

NOTE: At present diff-of-diffs plots are only generated for species concentrations.

Benchmark assessment form

Performance	GEOS-Chem Classic	GCHP
Grid resolution:	4° x 5°	C48
# CPUs, nodes:	48 CPUs 1 node (Intel Cascade Lake)	48 CPUs 2 nodes (Intel Cascade Lake)
Wall time:	03:28:41	10:22:56
CPU time / wall time:	44.2102	47.5797
% of ideal performance:	92.10%	99.12%
Memory:	12.15 GB	72.00 GB
Global mean OH: (% change from previous version)	11.22447731869 x 105 molec/cm3 (-0.70%)	11.32511201470 x 105 molec/cm3 (-0.23%)
Methyl chloroform lifetime: (% change from previous version)	5.5095 years (+1.19%)	5.4557 years (+0.52%)
Methane lifetime: (% change from previous version)	9.2713 years (+1.24%)	9.1810 years (+0.56%)
Details
Species, J-Values, and COLUMN AOD values that changed by 10% or more at the surface:	GEOS-Chem Classic 13.2.0 vs 13.1.0	GCHP 13.2.0 vs 13.1.0 GCHP vs GEOS-Chem Classic 13.2.0
Species and J-Values that changed by 10% or more at 500 hPa:	GEOS-Chem Classic 13.2.0 vs 13.1.0	GCHP 13.2.0 vs 13.1.0 GCHP vs GEOS-Chem Classic 13.2.0
Species and J-Values that changed by 10% or more in zonal mean:	GEOS-Chem Classic 13.2.0 vs 13.1.0	GCHP 13.2.0 vs 13.1.0 GCHP vs GEOS-Chem Classic 13.2.0
Emissions that changed by 10% or more:	GEOS-Chem Classic 13.2.0 vs 13.1.0	GCHP 13.2.0 vs 13.1.0 GCHP vs GEOS-Chem Classic 13.2.0
Overview
Below we summarize the notable changes caused by specific updates. Supplementary plots may be viewed at http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/. 1. CEDS v2 emissions through 2019 This update changes the default global anthropogenic emissions inventory from the CEDS GBD-MAPS emissions (McDuffie et al., 2020) to CEDS v_2021_04_21. A comparison of 1-year HEMCO standalone simulations with two CEDS inventories (all other emissions off) may be found at http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/CEDS_comparison/. The impact on total emissions from CEDS in the 1-month benchmark is: ################################################################################### ### Emissions totals for inventory CEDS [Tg] ### ### Ref = GCC_13.1.0-beta.1; Dev = GCC_13.2.0-beta.0 ### ################################################################################### Ref Dev Dev - Ref  % diff CEDS ALD2  : 0.154553 0.145020 -0.009533 -6.168 CEDS ALK4  : 6.199253 4.402483 -1.796770 -28.984 CEDS BCPI  : 0.091399 0.093466 0.002067 2.261 CEDS BCPO  : 0.365597 0.373865 0.008268 2.261 CEDS BENZ  : 0.540500 0.475758 -0.064742 -11.978 CEDS C2H6  : 0.000000 0.000000 0.000000 nan CEDS C3H8  : 0.000000 0.000000 0.000000 nan CEDS CH2O  : 0.188656 0.168678 -0.019978 -10.590 CEDS CO  : 43.334300 42.445467 -0.888833 -2.051 CEDS EOH  : 0.192327 0.190836 -0.001491 -0.775 CEDS HCOOH  : 0.787154 0.766416 -0.020738 -2.635 CEDS MEK  : 0.317763 0.325502 0.007739 2.435 CEDS MOH  : 0.256436 0.254447 -0.001988 -0.775 CEDS NH3  : 4.532343 4.580419 0.048076 1.061 CEDS NO  : 5.358063 5.327768 -0.030295 -0.565 CEDS OCPI  : 0.517259 0.540969 0.023710 4.584 CEDS OCPO  : 0.517259 0.540969 0.023710 4.584 CEDS PRPE  : 0.278035 0.255829 -0.022207 -7.987 CEDS SO2  : 5.678111 5.872484 0.194373 3.423 CEDS SO4  : 0.176021 0.182047 0.006026 3.423 CEDS SOAP  : 2.990061 2.928739 -0.061322 -2.051 CEDS TOLU  : 0.694440 0.643773 -0.050667 -7.296 CEDS XYLE  : 0.653523 0.652313 -0.001210 -0.185 CEDS pFe  : 0.005678 0.005873 0.000194 3.424 ################################################################################### ### Emissions totals for inventory CEDSship [Tg] ### ### Ref = GCC_13.1.0-beta.1; Dev = GCC_13.2.0-beta.0 ### ################################################################################### Ref Dev Dev - Ref  % diff CEDSship ALD2  : 0.000000 0.000000 0.000000 nan CEDSship ALK4  : 0.117184 0.116967 -0.000218 -0.186 CEDSship BCPI  : 0.003191 0.001399 -0.001792 -56.151 CEDSship BCPO  : 0.012765 0.005597 -0.007168 -56.151 CEDSship BENZ  : 0.007011 0.006944 -0.000067 -0.957 CEDSship C2H6  : 0.018653 0.018653 0.000000 0.000 CEDSship C3H8  : 0.051746 0.051746 0.000000 0.000 CEDSship CH2O  : 0.000000 0.000000 0.000000 nan CEDSship CO  : 0.065856 0.067810 0.001954 2.967 CEDSship EOH  : 0.000000 0.000000 0.000000 nan CEDSship HCOOH  : 0.000000 0.000000 0.000000 nan CEDSship MEK  : 0.000000 0.000000 0.000000 nan CEDSship NH3  : 0.001470 0.001600 0.000130 8.861 CEDSship OCPI  : 0.006061 0.002659 -0.003402 -56.133 CEDSship OCPO  : 0.006061 0.002659 -0.003402 -56.133 CEDSship PRPE  : 0.016771 0.016605 -0.000165 -0.985 CEDSship SO2  : 0.799522 0.951114 0.151592 18.960 CEDSship SO4  : 0.024785 0.029485 0.004699 18.960 CEDSship SOAP  : 0.004544 0.004679 0.000135 2.967 CEDSship TOLU  : 0.004209 0.004172 -0.000038 -0.891 CEDSship XYLE  : 0.004352 0.004321 -0.000031 -0.713 CEDSship pFe  : 0.000800 0.000951 0.000152 18.960 2. Updated Yuan/BNU MODIS LAI product (2000-2019) This update impacts many species' concentrations over land by impacting both dry deposition and biogenic emissions. The impact on biogenic emissions from the MEGAN extension is: ################################################################################### ### Emissions totals for inventory MEGAN [Tg] ### ### Ref = GCC_13.1.0-beta.1; Dev = GCC_13.2.0-beta.0 ### ################################################################################### Ref Dev Dev - Ref  % diff MEGAN ACET  : 4.664387 4.967504 0.303117 6.499 MEGAN ACET DIRECT  : 3.539583 3.757447 0.217864 6.155 MEGAN ACET MBOX  : 0.155540 0.169264 0.013724 8.823 MEGAN ACET MONO  : 0.426515 0.451692 0.025177 5.903 MEGAN ALD2  : 1.699831 1.741248 0.041417 2.437 MEGAN EOH  : 1.699831 1.741248 0.041417 2.437 MEGAN ISOP  : 32.667449 34.674372 2.006923 6.143 MEGAN LIMO  : 0.901541 0.965262 0.063721 7.068 MEGAN MOH  : 9.825056 10.571789 0.746733 7.600 MEGAN MTPA  : 8.062552 8.559976 0.497424 6.170 MEGAN MTPO  : 3.719878 3.941243 0.221365 5.951 MEGAN PRPE  : 2.324172 2.495728 0.171555 7.381 MEGAN SOAP  : 1.146761 1.216940 0.070179 6.120 MEGAN SOAS  : 1.146761 1.216940 0.070179 6.120 3. Improved wet scavenging from Luo et al. (2020) (as option) Some small differences at the level of numerical noise (i.e. differences ~1e-6X or ~1e-7X smaller than values) still occur even when the default wetdep scheme is used. This is because we now better enforce REAL*8 precision by adding _fp or _f8 suffixes to numerical constants where they were lacking in both Luo and default wetdep schemes. Additional 1-month benchmarks with the Luo et al. (2020) wet deposition scheme were also completed and results of those benchmarks are linked above. 4. Blowing snow emissions of sea salt and sea salt bromide ################################################################################### ### Emissions totals for inventory SeaSalt [Tg] ### ### Ref = GCC_13.1.0-beta.1; Dev = GCC_13.2.0-beta.0 ### ################################################################################### Ref Dev Dev - Ref  % diff SeaSalt Br2  : 0.000000 nan nan nan SeaSalt BrSALA  : 0.009512 0.011070 0.001558 16.382 SeaSalt BrSALC  : 0.575690 0.559263 -0.016428 -2.854 SeaSalt SALA  : 4.507904 4.515461 0.007558 0.168 SeaSalt SALAAL  : 4.507904 4.515461 0.007558 0.168 SeaSalt SALACL  : 2.481150 2.565770 0.084619 3.410 SeaSalt SALC  : 272.839025 264.549529 -8.289495 -3.038 SeaSalt SALCAL  : 272.839025 264.549529 -8.289495 -3.038 SeaSalt SALCCL  : 150.170606 145.663537 -4.507068 -3.001 5. Add carbon to species scale factors to AEIC VOC emissions This update fixes an issue introduced in GEOS-Chem 13.0.0 when carbon-based units were removed from HEMCO and GEOS-Chem. AEIC emissions were never updated to include the proper carbon to species scale factors. This fix increases VOC species concentrations aloft. The impact on emissions from that inventory is: ################################################################################### ### Emissions totals for inventory AEIC [Tg] ### ### Ref = GCC_13.1.0-beta.1; Dev = GCC_13.2.0-beta.0 ### ################################################################################### Ref Dev Dev - Ref  % diff AEIC ACET  : 0.000086 0.000139 0.000053 61.361 AEIC ALD2  : 0.000996 0.001829 0.000833 83.583 AEIC ALK4  : 0.004987 0.005617 0.000630 12.636 AEIC BCPI  : 0.000486 0.000486 0.000000 0.000 AEIC C2H6  : 0.000122 0.000152 0.000031 25.333 AEIC C3H8  : 0.000018 0.000022 0.000004 22.528 AEIC CH2O  : 0.002871 0.002871 0.000000 0.000 AEIC CO  : 0.068360 0.068360 0.000000 0.000 AEIC MACR  : 0.001251 0.001827 0.000576 46.042 AEIC NO  : 0.156922 0.156922 0.000000 0.000 AEIC OCPI  : 0.000486 0.000486 0.000000 0.000 AEIC PRPE  : 0.004153 0.004855 0.000703 16.917 AEIC RCHO  : 0.000858 0.001384 0.000526 61.361 AEIC SO2  : 0.019036 0.019036 0.000000 0.000 AEIC SO4  : 0.000583 0.000583 0.000000 0.000 AEIC SOAP  : 0.004717 0.004717 0.000000 0.000 The following updates introduced differences on the order of numerical noise: Fix molecular weight of ethanol (EOH) in species_database.yml Fix typo in CloudHet function in gckpp_HetRates.F90
Approval
Requires further investigation:
Approved by:
Date of approval:

1-year benchmarks

This version will require 1-year full-chemistry and transport tracer benchmarks, with and without Luo wet deposition.