Benchmark/GEOS-Chem 12.8.0: Difference between revisions

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|-valign="top"
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|Use online MEGAN, DustDead, and SoilNOx emissions for benchmark simulations
|Use online MEGAN, DustDead, SeaSalt, and SoilNOx emissions for benchmark simulations
|Melissa Sulprizio (GCST)
|Melissa Sulprizio (GCST)


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'''[https://www.atmos-chem-phys.net/19/9613/2019/ Isoprene chemistry]'''
'''[https://www.atmos-chem-phys.net/19/9613/2019/ Isoprene chemistry]'''
:This update introduced several new advected species
:This update introduced several new advected species:
::HMHP, ETP, HPETHNL, HCOOH, PYAC, ATOOH, ETHLN, MCRHN, MCRHNB, R4P, RP, RA3P, RB3P, PIP, PP, RIPA, RIPB, RIPC, RIPD, IEPOXA, IEPOXB, IEPOXD, ICHE, HC5A, HMML, HPALD1, HPALD2, HPALD3, HPALD4, IDC, IHN1, IHN2, IHN3, IHN4, INPB, INPD, IDN, ICN, ITCN, ITHN, ICPDH, IDCHP, IDHDP, IDHPE, MVKDH, MVKHC, MVKHCB, MVKHP, MVKPC, MCRDH, MCRENOL, MCRHP, MACR1OOH
:and removed several species:
::NPMN, ISOPND, ISOPNB, MOBA, MACRN, IMAE, SOAME, SOAMG, ISN1OG, ISN1OA, IPMN, HC187
:The [http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_12/12.8.0/GCC/Plots/benchmark_categories.yml benchmark categories] have been updated to account for these changes, following recommendations from Kelvin Bates.
:For remarks on impacts caused by these changes, please see [https://github.com/geoschem/geos-chem/pull/142 this discussion on Github].
:NOTE: There are large changes observed in AOD from isoprene SOA in this version. These changes are partially due to removing some species that were included in the isoprene SOA calculation in aerosol_mod.F, but are mainly due to [https://github.com/geoschem/geos-chem/issues/208 the bug fix for the AOD from isoprene SOA diagnostic] that went into [[GEOS-Chem_12#12.7.1|GEOS-Chem 12.7.1]].
 
 
'''Use online DustDead, MEGAN, SeaSalt, and SoilNOx emissions for benchmark simulations'''
 
:The entries below from the [http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_12/12.8.0/GCC/Plots/Emissions/Emission_totals.txt emissions tables by species]] show differences caused by turning the DustDead, MEGAN, SeaSalt, and SoilNOx extensions back on in benchmark simulations. These changes are similar, but of the opposite sign, to the changes observed in the [[Benchmark/GEOS-Chem_12.4.0#GEOS-Chem_Classic_1-month_benchmark|GEOS-Chem 12.4.0 benchmark]] when offline emissions were implemented.
 
###############################################################################
### Emissions totals                                                  ###
### Ref = GC_12.7.0; Dev = GC_12.8.0                                        ###
###############################################################################
                                        Ref                Dev      Dev - Ref
DST1 Natural          :          9.550223            3.400091      -6.150131 Tg
DST2 Natural          :          23.987765            8.540177    -15.447588 Tg
DST3 Natural          :          43.524575          15.495716    -28.028860 Tg
DST4 Natural          :          47.613968          16.951628    -30.662340 Tg
...
ACET Biogenic        :          2.734815            2.936038      0.201222 Tg C
ALD2 Biogenic        :          0.971226            0.993718      0.022492 Tg C
EOH Biogenic          :          0.928745            0.950253      0.021508 Tg C
ISOP Biogenic        :          33.565337          30.881374      -2.683962 Tg C
LIMO Biogenic        :          0.930596            0.903745      -0.026852 Tg
MTPA Biogenic        :          8.089232            8.345941      0.256708 Tg
MTPO Biogenic        :          3.756286            3.860389      0.104104 Tg
PRPE Biogenic        :          1.855930            1.997076      0.141146 Tg C
SOAP Biogenic        :          1.405632            1.206619      -0.199013 Tg
SOAS Biogenic        :          1.405632            1.206619      -0.199013 Tg
..
SALA Natural          :          5.620708            4.653316      -0.967392 Tg
SALC Natural          :        340.191067          281.640070    -58.550997 Tg
...
NO Soil              :          1.580800            1.376302      -0.204498 Tg
 




Revision as of 15:07, 30 March 2020


This page includes information about all benchmark simulations for GEOS-Chem 12.8.0.

GEOS-Chem Classic 1-month benchmark

Benchmark plots

Enable PDF bookmarks1 in the files linked below to navigate between species. See the Species in GEOS-Chem wiki page for species definitions and details.

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

OH metrics OH concentration, MCF lifetime, CH4 lifetime

1All plots created with GCPy have PDF bookmarks. If you do not see them in your browser try using a different browser (not Safari) or installing an Adobe Acrobat plug-in.

2Species category and lumped species definitions are simple to adjust. Updating them requires only editing the YAML files.

Benchmark assessment form

Description
New features added into GEOS-Chem
Feature Submitted by
Isoprene chemistry Kelvin Bates (Harvard)
Wet deposition parameterization Kelvin Bates (Harvard)
Sarah Safieddine (MIT)
Ozone deposition to the ocean Ryan Pound (York)
Mat Evans (York)
Use online MEGAN, DustDead, SeaSalt, and SoilNOx emissions for benchmark simulations Melissa Sulprizio (GCST)
Shift CMIP6 time from middle to start of month to allow start in January Lizzie Lundgren (GCST)
Features NOT affecting the full-chemistry simulation:
GFED 4.1s beta emissions for 2017-2019 Maggie Marvin (U. Edinburgh)
Replace State_Chm%nAero with State_Chm%nAeroSpc and State_Chm%nAeroType Seb Eastham (MIT)
GCST
Convert all files in GeosCore, GeosUtil, and Headers to .F90 Melissa Sulprizio (GCST)
Change GEOS-Chem timers from a CPP switch to an option in input.geos Melissa Sulprizio (GCST)
Remove potential for surface CH4 retrieval error in SET_CH4 due to reliance on HEMCO emissions year Christoph Keller (GMAO)
Features affecting GCHP only:
Fix leap year handling bug in GCHP multi-run script Lizzie Lundgren (Harvard)


Version, resolution, met fields used: GEOS-FP (72L), 4x5, July 2016
1-month benchmark finished on: Mon Jan 6 06:18:07 EST 2020
Performance statistics:
  • Compiled with ifort 17.0.4
  • Ran on 24 CPUs of holyjacob01.rc.fas.harvard.edu (Intel(R) Xeon(R) CPU E5-2680 v3 "Haswell" @ 2.50 GHz)
  • Wall time: 09:28:36
  • CPU time / wall time: 21.4657
  • % of ideal performance: 89.44%
  • Memory: 13.2477 GB
Git tag 12.8.0-rc.0
Compared to previous benchmark: 12.7.0
This update will impact:
(select all that apply with boldface) 		Advection, BL Mixing, Convection, Met Fields, Dry Dep, Wet Dep, Stratosphere, Emissions, Photolysis, Chemistry, Other (please specify):
Unit test results may be viewed at: http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_12/12.8.0/GCC/Plots/GC_12.8.0_Mar19.results.html
Metrics
Global mean OH from log file (% change): 11.8937088091687 x 105 molec/cm3 (+0.96%)
Methyl chloroform lifetime (% change): 5.2374 years (-1.25%)
Methane lifetime (% change): 8.8001years (-1.30%)
Overview
Comments on observed differences: Below we summarize the notable changes caused by specific updates.

Isoprene chemistry

This update introduced several new advected species:
HMHP, ETP, HPETHNL, HCOOH, PYAC, ATOOH, ETHLN, MCRHN, MCRHNB, R4P, RP, RA3P, RB3P, PIP, PP, RIPA, RIPB, RIPC, RIPD, IEPOXA, IEPOXB, IEPOXD, ICHE, HC5A, HMML, HPALD1, HPALD2, HPALD3, HPALD4, IDC, IHN1, IHN2, IHN3, IHN4, INPB, INPD, IDN, ICN, ITCN, ITHN, ICPDH, IDCHP, IDHDP, IDHPE, MVKDH, MVKHC, MVKHCB, MVKHP, MVKPC, MCRDH, MCRENOL, MCRHP, MACR1OOH
and removed several species:
NPMN, ISOPND, ISOPNB, MOBA, MACRN, IMAE, SOAME, SOAMG, ISN1OG, ISN1OA, IPMN, HC187
The benchmark categories have been updated to account for these changes, following recommendations from Kelvin Bates.
For remarks on impacts caused by these changes, please see this discussion on Github.
NOTE: There are large changes observed in AOD from isoprene SOA in this version. These changes are partially due to removing some species that were included in the isoprene SOA calculation in aerosol_mod.F, but are mainly due to the bug fix for the AOD from isoprene SOA diagnostic that went into GEOS-Chem 12.7.1.


Use online DustDead, MEGAN, SeaSalt, and SoilNOx emissions for benchmark simulations

The entries below from the emissions tables by species] show differences caused by turning the DustDead, MEGAN, SeaSalt, and SoilNOx extensions back on in benchmark simulations. These changes are similar, but of the opposite sign, to the changes observed in the GEOS-Chem 12.4.0 benchmark when offline emissions were implemented.
###############################################################################
### Emissions totals                                                  ###
### Ref = GC_12.7.0; Dev = GC_12.8.0                                        ###
###############################################################################
                                       Ref                 Dev      Dev - Ref
DST1 Natural          :           9.550223            3.400091      -6.150131 Tg
DST2 Natural          :          23.987765            8.540177     -15.447588 Tg 
DST3 Natural          :          43.524575           15.495716     -28.028860 Tg
DST4 Natural          :          47.613968           16.951628     -30.662340 Tg
...
ACET Biogenic         :           2.734815            2.936038       0.201222 Tg C
ALD2 Biogenic         :           0.971226            0.993718       0.022492 Tg C
EOH Biogenic          :           0.928745            0.950253       0.021508 Tg C
ISOP Biogenic         :          33.565337           30.881374      -2.683962 Tg C
LIMO Biogenic         :           0.930596            0.903745      -0.026852 Tg
MTPA Biogenic         :           8.089232            8.345941       0.256708 Tg
MTPO Biogenic         :           3.756286            3.860389       0.104104 Tg
PRPE Biogenic         :           1.855930            1.997076       0.141146 Tg C
SOAP Biogenic         :           1.405632            1.206619      -0.199013 Tg
SOAS Biogenic         :           1.405632            1.206619      -0.199013 Tg
..
SALA Natural          :           5.620708            4.653316      -0.967392 Tg
SALC Natural          :         340.191067          281.640070     -58.550997 Tg
...
NO Soil               :           1.580800            1.376302      -0.204498 Tg


Details
List all SURFACE species, J-Values, and COLUMN AOD values that changed by 10% or more:
  • Aerosols: DST1 DST2 DST3 DST4 NH4 NIT SO4 Complex_SOA Simple_SOA AERI BrSALA BrSALC ISALA ISALC NITs SALC SO4s
  • Bromine: Bry BrOx Br Br2 BrCl BrNO2 BrNO3 BrO HOBr HBr
  • Chlorine: Cly ClOx Cl ClO Cl2 Cl2O2 ClOO ClNO2 ClNO3 HOCl HCl OClO
  • Iodine: Iy IxOy I I2 IBr ICl IO IONO IONO2 CH2I2 HI HOI OIO
  • Nitrogen: NOy NOx HNO2 HNO3 HNO4 NIT NO NO2 NO3 N2O5 MPN PAN PPN NHx NH3 NH4 MENO3 ETNO3 IPRNO3 NPRNO3
  • Oxidants: O3 OH NOx
  • Primary_Organics: EOH ISOP MTPA MTPO LIMO PRPE TOLU
  • ROy: H2O2 H HO2 O1D OH RO2
  • Secondary_Organic_Aerosols: TSOA0 TSOA1 TSOA2 TSOA3 ASOA1 ASOA2 ASOA3 ASOAN TSOG0 TSOG1 TSOG2 TSOG3 ASOG1 ASOG2 ASOG3 INDIOL LVOCOA SOAIE SOAP SOAS
  • Secondary_Organics: ACTA ALD2 CH2O MACR IEPOX ACET MEK MVK ISOPN GLYX HCOOH MAP RCHO MP
  • Sulfur: SOx DMS SO2 SO4
  • Aerosols: DST1 DST2 DST3 DST4 NH4 NIT SO4 Complex_SOA Simple_SOA AERI BrSALA BrSALC ISALA ISALC NITs SALC SO4s
  • Bromine: Bry BrOx Br Br2 BrCl BrNO2 BrNO3 BrO HOBr HBr
  • Chlorine: Cly ClOx Cl ClO Cl2 Cl2O2 ClOO ClNO2 ClNO3 HOCl HCl OClO
  • Iodine: Iy IxOy I I2 IBr ICl IO IONO IONO2 CH2I2 HI HOI OIO
  • Nitrogen: NOy NOx HNO2 HNO3 HNO4 NIT NO NO2 NO3 N2O5 MPN PAN PPN NHx NH3 NH4 MENO3 ETNO3 IPRNO3 NPRNO3
  • Oxidants: O3 OH NOx
  • Primary_Organics: EOH ISOP MTPA MTPO LIMO PRPE TOLU
  • ROy: H2O2 H HO2 O1D OH RO2
  • Secondary_Organic_Aerosols: TSOA0 TSOA1 TSOA2 TSOA3 ASOA1 ASOA2 ASOA3 ASOAN TSOG0 TSOG1 TSOG2 TSOG3 ASOG1 ASOG2 ASOG3 INDIOL LVOCOA SOAIE SOAP SOAS
  • Secondary_Organics: ACTA ALD2 CH2O HPALDs MACR IEPOX ACET MEK MVK ISOPN GLYX HCOOH MAP RCHO MP
  • Sulfur: SOx DMS SO2 SO4
  • J-Values: None
  • Column AOD: None
List all 500 hPa species and J-Values that changed by 10% or more :
  • Aerosols: DST2 DST3 DST4 NIT Complex_SOA BrSALA BrSALC NITs
  • Bromine: Bry BrOx Br Br2 BrCl BrNO2 BrNO3 BrO HOBr HBr
  • Chlorine: Cly ClOx Cl ClO Cl2 Cl2O2 ClOO ClNO2 ClNO3 HOCl HCl OClO
  • Iodine: I2 IBr ICl IO IONO IONO2 CH2I2 HI OIO
  • Nitrogen: NOx HNO2 HNO3 HNO4 NIT NO NO2 N2O5 MPN PPN NH3
  • Oxidants: OH NOx
  • Primary_Organics: EOH ISOP MTPA MTPO LIMO PRPE XYLE
  • ROy: H2O2 H HO2 OH RO2
  • Secondary_Organic_Aerosols: TSOA0 TSOA1 TSOA2 TSOA3 TSOG0 TSOG1 TSOG2 TSOG3 INDIOL SOAP
  • Secondary_Organics: ACTA ALD2 CH2O MACR IEPOX ACET MVK ISOPN GLYX HCOOH MAP RCHO
  • Sulfur: DMS SO2
  • Aerosols: DST2 DST3 DST4 NIT Complex_SOA BrSALA BrSALC NITs
  • Bromine: Bry BrOx Br Br2 BrCl BrNO2 BrNO3 BrO HOBr HBr
  • Chlorine: Cly ClOx Cl ClO Cl2 Cl2O2 ClOO ClNO2 ClNO3 HOCl HCl OClO
  • Iodine: I2 IBr ICl IO IONO IONO2 CH2I2 HI OIO
  • Nitrogen: NOx HNO2 HNO3 HNO4 NIT NO NO2 N2O5 MPN PPN NH3
  • Oxidants: OH NOx
  • Primary_Organics: EOH ISOP MTPA MTPO LIMO PRPE XYLE
  • ROy: H2O2 H HO2 OH RO2
  • Secondary_Organic_Aerosols: TSOA0 TSOA1 TSOA2 TSOA3 TSOG0 TSOG1 TSOG2 TSOG3 INDIOL SOAP
  • Secondary_Organics: ACTA ALD2 CH2O HPALDs MACR IEPOX ACET MVK ISOPN GLYX HCOOH MAP RCHO
  • Sulfur: DMS SO2
List all ZONAL MEAN species and J-Values that changed by 10% or more:
  • Aerosols: NH4 NIT Complex_SOA AERI BrSALC
  • Bromine: BrOx Br BrCl BrNO3 BrO HOBr HBr
  • Chlorine: ClOx Cl ClO Cl2 Cl2O2 ClOO ClNO3 HOCl HCl OClO
  • Iodine: I I2 IBr ICl IO IONO2 CH2I2 CH2ICl CH2IBr HI HOI OIO
  • Nitrogen: HNO3 NIT NO3 N2O5 MPN PAN PPN NH3 NH4 NPRNO3
  • Oxidants: O3 OH
  • Primary_Organics: ISOP MTPA MTPO LIMO C3H8 PRPE
  • ROy: H HO2 O1D OH RO2
  • Secondary_Organic_Aerosols: TSOA0 TSOA1 TSOA2 TSOG0 TSOG1 TSOG2 TSOG3 INDIOL LVOCOA
  • Secondary_Organics: ACTA ALD2 CH2O MACR IEPOX MVK ISOPN GLYX HCOOH MAP RCHO
  • Sulfur: DMS SO2
  • Aerosols: NH4 NIT Complex_SOA AERI BrSALC
  • Bromine: BrOx Br BrCl BrNO3 BrO HOBr HBr
  • Chlorine: ClOx Cl ClO Cl2 Cl2O2 ClOO ClNO3 HOCl HCl OClO
  • Iodine: I I2 IBr ICl IO IONO2 CH2I2 CH2ICl CH2IBr HI HOI OIO
  • Nitrogen: HNO3 NIT NO3 N2O5 MPN PAN PPN NH3 NH4 NPRNO3
  • Oxidants: O3 OH
  • Primary_Organics: ISOP MTPA MTPO LIMO C3H8 PRPE
  • ROy: H HO2 O1D OH RO2
  • Secondary_Organic_Aerosols: TSOA0 TSOA1 TSOA2 TSOG0 TSOG1 TSOG2 TSOG3 INDIOL LVOCOA
  • Secondary_Organics: ACTA ALD2 CH2O HPALDs MACR IEPOX MVK ISOPN GLYX HCOOH MAP RCHO
  • Sulfur: DMS SO2
  • J-Values: None
List all EMISSIONS that changed by 10% or more:
  • Biogenic: ACET ALD2 EOH ISOP LIMO MTPA MTPO PRPE SESQ SOAP SOAS
  • Natural: DST1 DST2 DST3 DST4 SALA SALC
  • Ship: HNO3 NO2 NO O3
  • Soil: NO
  • Total: ACET ALD2 DST1 EOH ISOP MTPA NO PRPE SOAP
Approval
Requires further investigation:
Approved by:
Date of approval:

GCHP 1-month benchmark

The following sections contain validation plots for GCHP 12.80.

Comparison of GCHP versions

This table contains plots comparing GCHP 12.7.0 (Ref) and GCHP 12.80 (Dev) for a 1-month simulation.

Category Plots Additional Information
Level Map Zonal Mean Emissions
Oxidants sfc 500hPa full column stratosphere full column
Aerosols sfc 500hPa full column stratosphere full column Column AOD
Bromine sfc 500hPa full column stratosphere full column
Chlorine sfc 500hPa full column stratosphere --
Iodine sfc 500hPa full column stratosphere full column
Nitrogen sfc 500hPa full column stratosphere full column
Primary Organics sfc 500hPa full column stratosphere full column
Secondary Organics sfc 500hPa full column stratosphere full column
Secondary Organic Aerosols sfc 500hPa full column stratosphere full column
Sulfur sfc 500hPa full column stratosphere full column
ROy sfc 500hPa full column stratosphere --
J-values sfc 500hPa full column stratosphere --
Emissions by HEMCO category

Aircraft, Anthro, Bioburn, Biogenic,
Lightning, Monoterp, Natural, Ocean, Seabirds, DecayingPlants,
[http:/ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_12/12.8.0/GCHP/plots/GCHP_version_comparison/Emissions/Ship_Emissions.pdf Ship], Soil, Total, VolcDegas, VolcErupt,

Emission totals

Comparison of GCHP and GEOS-Chem Classic

This table contains plots comparing GEOS-Chem Classic 12.8.0 (Ref) against GCHP 12.8.0 (Dev) for a 1-month simulation.

Category Plots Additional Information
Level Map Zonal Mean Emissions
Oxidants sfc 500hPa full column stratosphere full column
Aerosols sfc 500hPa full column stratosphere full column Column AOD
Bromine sfc 500hPa full column stratosphere full column
Chlorine sfc 500hPa full column stratosphere --
Iodine sfc 500hPa full column stratosphere full column
Nitrogen sfc 500hPa full column stratosphere full column
Primary Organics sfc 500hPa full column stratosphere full column
Secondary Organics sfc 500hPa full column stratosphere full column
Secondary Organic Aerosols sfc 500hPa full column stratosphere full column
Sulfur sfc 500hPa full column stratosphere full column
ROy sfc 500hPa full column stratosphere --
J-values sfc 500hPa full column stratosphere --
Emissions by HEMCO category

Aircraft, Anthro, Bioburn, Biogenic,
Lightning, Monoterp, Natural, Ocean, Seabirds, DecayingPlants,
Ship, Soil, Total, VolcDegas, VolcErupt,

Emission totals

1-year Transport Tracers benchmarks

Two 1-year Transport Tracers benchmark simulation were performed using GEOS-Chem 12.8.0:

Both simulations utilized 4° x 5° GEOS-FP met fields for the year 2016, with a 10-year spinup. These simulations can be used to validate the Luo wet dep scheme which is offered as an option starting in this version.

Month Plots
Level Map Zonal Mean
January sfc 500hPa full column stratosphere
April sfc 500hPa full column stratosphere
July sfc 500hPa full column stratosphere
October sfc 500hPa full column stratosphere
Emissions Total Emissions

NOTE: At present, we have only created the 6-panel difference plots for species concentrations and total emissions, but this can be expanded to other benchmark output in the future.

Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=Benchmark/GEOS-Chem_12.8.0&oldid=46737"