Difference between revisions of "GEOS-Chem 13.0.0"
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|colspan="3"|'''''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/.''''' | |colspan="3"|'''''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/.''''' | ||
− | '''Changes to benchmark setup''' | + | '''1. Changes to benchmark setup''' |
*'''Use [[MERRA-2]] meteorology instead of [[GEOS-FP]]''' | *'''Use [[MERRA-2]] meteorology instead of [[GEOS-FP]]''' | ||
:Changing from GEOS-FP to MERRA-2 meteorology impacted the [http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/GCC_13.0.0-alpha.5+MERRA2/BenchmarkResults/Tables/GlobalMass_Trop.txt concentrations of most species], most notably over land and in the Tropics. Global mean OH increased by 2.11%. In addition, changing the meteorology fields impacted emissions computed by HEMCO extensions (MEGAN, soil NOx, lightning NOx, dust, etc.). Those changes are summarized below in [http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/GCC_13.0.0-alpha.5+MERRA2/BenchmarkResults/Emissions/Inventory_totals.txt this table of emissions by inventory] created from an internal benchmark isolating just the impact of changing from GEOS-FP to MERRA-2. | :Changing from GEOS-FP to MERRA-2 meteorology impacted the [http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/GCC_13.0.0-alpha.5+MERRA2/BenchmarkResults/Tables/GlobalMass_Trop.txt concentrations of most species], most notably over land and in the Tropics. Global mean OH increased by 2.11%. In addition, changing the meteorology fields impacted emissions computed by HEMCO extensions (MEGAN, soil NOx, lightning NOx, dust, etc.). Those changes are summarized below in [http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/GCC_13.0.0-alpha.5+MERRA2/BenchmarkResults/Emissions/Inventory_totals.txt this table of emissions by inventory] created from an internal benchmark isolating just the impact of changing from GEOS-FP to MERRA-2. | ||
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... | ... | ||
− | + | '''2. [https://github.com/geoschem/geos-chem/issues/447 CEDS_GBD-MAPS emission inventory (1970 - 2017)]''' | |
− | '''[https://github.com/geoschem/geos-chem/issues/447 CEDS_GBD-MAPS emission inventory (1970 - 2017)]''' | + | |
:This benchmark now uses CEDS Global Burden of Disease - Major Air Pollution Sources (GBD-MAPS) emissions for 2017, as opposed to the prior CEDS inventory released for CMIP6 (Hoesly et al., 2018) for which 2014 was the last year. The impact on emission totals is summarized below: | :This benchmark now uses CEDS Global Burden of Disease - Major Air Pollution Sources (GBD-MAPS) emissions for 2017, as opposed to the prior CEDS inventory released for CMIP6 (Hoesly et al., 2018) for which 2014 was the last year. The impact on emission totals is summarized below: | ||
############################################################################### | ############################################################################### | ||
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CEDS pFe : 0.008222 0.005678 -0.002544 Tg | CEDS pFe : 0.008222 0.005678 -0.002544 Tg | ||
− | + | '''3. [https://github.com/geoschem/geos-chem/issues/309 Retire carbon-based units for VOCs]''' | |
− | '''[https://github.com/geoschem/geos-chem/issues/309 Retire carbon-based units for VOCs]''' | + | |
:The impact of retiring carbon-based units can be observed in the difference plots and tables for ACET, ALD2, ALK4, BENZ, C2H6, C3H8, EOH, ISOP, MEK, PRPE, TOLU, XYLE. Those species were traditionally treated as having a molecular weight of 12.0 g/mol which in some cases would be multiplied by the molecular ratio or number of carbon atoms in that species. Differences introduced by this update are primarily small, but arise from the difference between the actual species molecular weights compared to the molecular weight of carbon multiplied by the number of carbons (e.g. for acetone the actual molecular weight is 58.02 g/mol while it was previously treated as 12.0*3=36.0 g/mol). In addition, the GEOS-Chem and HEMCO output in 12.9.0 and earlier indicated units of v/v or kg/m2/s for many of these species when it was actually vC/v and kgC/m2/s, and this led to incorrect unit conversions in GCPy when creating benchmark plots and tables. Where possible, we have corrected that in this benchmark output for 13.0.0 so we are comparing similar units for 12.9.0 and 13.0.0 output but some species like EOH still show large differences. | :The impact of retiring carbon-based units can be observed in the difference plots and tables for ACET, ALD2, ALK4, BENZ, C2H6, C3H8, EOH, ISOP, MEK, PRPE, TOLU, XYLE. Those species were traditionally treated as having a molecular weight of 12.0 g/mol which in some cases would be multiplied by the molecular ratio or number of carbon atoms in that species. Differences introduced by this update are primarily small, but arise from the difference between the actual species molecular weights compared to the molecular weight of carbon multiplied by the number of carbons (e.g. for acetone the actual molecular weight is 58.02 g/mol while it was previously treated as 12.0*3=36.0 g/mol). In addition, the GEOS-Chem and HEMCO output in 12.9.0 and earlier indicated units of v/v or kg/m2/s for many of these species when it was actually vC/v and kgC/m2/s, and this led to incorrect unit conversions in GCPy when creating benchmark plots and tables. Where possible, we have corrected that in this benchmark output for 13.0.0 so we are comparing similar units for 12.9.0 and 13.0.0 output but some species like EOH still show large differences. | ||
− | + | '''4. [https://github.com/geoschem/geos-chem/pull/396 Heterogeneous chem fixes, performance improvements, and clarification]''' | |
− | '''[https://github.com/geoschem/geos-chem/pull/396 Heterogeneous chem fixes, performance improvements, and clarification]''' | + | |
:These fixes primarily caused differences in [http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/GCC_13.0.0-alpha.7/BenchmarkResults/Tables/GlobalMass_Trop.txt concentrations of halogen species] and other species involved in heterogeneous chemistry. Global mean OH decreased by 3.45%. | :These fixes primarily caused differences in [http://ftp.as.harvard.edu/gcgrid/geos-chem/validation/InternalBenchmarks/GCC_13.0.0-alpha.7/BenchmarkResults/Tables/GlobalMass_Trop.txt concentrations of halogen species] and other species involved in heterogeneous chemistry. Global mean OH decreased by 3.45%. | ||
− | + | '''5. The following updates introduced differences on the order of numerical noise:''' | |
− | '''The following updates introduced differences on the order of numerical noise:''' | + | |
*[https://github.com/geoschem/geos-chem/pull/344 Fix handling of NOx coefficients in ucx_mod.F90] | *[https://github.com/geoschem/geos-chem/pull/344 Fix handling of NOx coefficients in ucx_mod.F90] | ||
*[https://github.com/geoschem/geos-chem/issues/311 Removal of HEMCO code from within the non-local PBL mixing modules] | *[https://github.com/geoschem/geos-chem/issues/311 Removal of HEMCO code from within the non-local PBL mixing modules] | ||
*[https://github.com/geoschem/geos-chem/issues/402 Prevent divide-by-zero errors in UCX routine UCX_NOX] | *[https://github.com/geoschem/geos-chem/issues/402 Prevent divide-by-zero errors in UCX routine UCX_NOX] | ||
+ | '''Additional notes:''' | ||
+ | * Natural emissions of NH3 and emissions of ALD2 and EOH from plant decay appear to be zero in the [http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_13/13.0.0-beta.0/GCClassic/BenchmarkResults/Emissions/Natural_Emissions.pdf natural emissions plots] and ]http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_13/13.0.0-beta.0/GCClassic/BenchmarkResults/Tables/Emission_totals.txt emission tables by species]. This is a diagnostic issue resulting from typos in HEMCO_Diagn.rc and has been fixed in the latest development code. The correct values can be found in the [http://ftp.as.harvard.edu/gcgrid/geos-chem/1mo_benchmarks/GC_13/13.0.0-beta.0/GCClassic/BenchmarkResults/Tables/Inventory_totals.txt emissions table by inventory] (see `GEIAnatural NH3`, `PLANTDECAY ALD2`, and `PLANTDECAY EOH`). | ||
|-bgcolor="#cccccc" | |-bgcolor="#cccccc" |
Revision as of 20:14, 10 November 2020
GEOS-Chem Main Page | GCHP Main Page
This page includes information about GEOS-Chem 13.0.0.
Contents
Version overview
The following items have been added to GEOS-Chem 13.0.0 since the last benchmark for GEOS-Chem 12.9.0.
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 (full-chemistry simulations) |
CEDS_GBD-MAPS emission inventory (1970 - 2017) | HEMCO/CEDS/v2020-08/ |
QFED | OPTIONAL | Update QFED emissions through July 2020 | HEMCO/QFED/v2018-07/ |
ODIAC CO2 | DEFAULT (CO2 simulations) |
ODIAC fossil fuel emissions for CO2 simulations | HEMCO/CO2/v2019-12/ |
MERCURY | OPTIONAL (Hg simulations) |
Updated Streets Hg emissions |
HEMCO/MERCURY/v2020-07/ |
CH4 | DEFAULT (CH4 simulations) |
Global Inventory of Methane Emissions from Fuel Exploitation | HEMCO/CH4/v2020-02/ |
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): | 13.0.0-rc.0 |
Compared to previous benchmark: | 12.9.0 |
Software environment: | ifort 18.0.5 OpenMPI 4.0.1 netcdf-fortran 4.5.2 CMake 3.16.1 ESMF 8.0.1 |
Meteorology fields: | MERRA-2
|
Initial conditions: | July 1, 2016 from 12.9.0 1-year benchmark
|
Benchmark month: | July 2019 |
This version will impact: (select all that apply with boldface) |
|
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 13.0.0 vs 12.9.0
Below are links to plots and tables comparing 1-month simulations for GEOS-Chem Classic 12.9.0 (Ref) and GEOS-Chem Classic 13.0.0 (Dev).
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 | |||||
Global mass | Entire atmosphere | |||||
Metrics | OH concentration, MCF lifetime, CH4 lifetime | |||||
Budgets | Budgets after operations
|
GCHP 13.0.0 vs 12.9.0
Below are links to plots and tables comparing 1-month simulations for GCHP 12.9.0 (Ref) and GCHP 13.0.0 (Dev).
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 | |||||
Global mass | Entire atmosphere | |||||
Budgets | Budgets after operations |
GCHP 13.0.0 vs GEOS-Chem 13.0.0
Below are links to plots and tables comparing 1-month simulations for GEOS-Chem Classic 13.0.0 (Ref) and GCHP 13.0.0 (Dev).
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 | |||||
Global mass | Entire atmosphere | |||||
Budgets | Budgets after operations |
GCHP vs GEOS-Chem Classic difference of differences
This table contains plots comparing the difference [GCHP 13.0.0 - GCHP 12.9.0] against the difference [GC Classic 13.0.0 - GC Classic 12.9.0], 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: | 24 CPUs 1 node (Intel Cascade Lake) |
48 CPUs 2 nodes (Intel Broadwell) |
Wall time: | 06:54:01 | 14:26:01 |
CPU time / wall time: | 19.4750 | 47.0915 |
% of ideal performance: | 81.15% | 98.11% |
Memory: | 13.68 GB | 71.56 GB |
Global mean OH: (% change from previous version) |
11.22769648880 x 105 molec/cm3 (-8.60%) |
11.24518930757 x 105 molec/cm3 (N/A) |
Methyl chloroform lifetime: (% change from previous version) |
5.5460 years (+8.20%) |
5.5318 years (N/A) |
Methane lifetime: (% change from previous version) |
9.3297 years (+8.09%) |
9.3064 years (N/A) |
Details | ||
Species, J-Values, and COLUMN AOD values that changed by 10% or more at the surface: | GEOS-Chem Classic 13.0.0 vs 12.9.0 | GCHP 13.0.0 vs 12.9.0 |
Species and J-Values that changed by 10% or more at 500 hPa: | GEOS-Chem Classic 13.0.0 vs 12.9.0 | GCHP 13.0.0 vs 12.9.0 |
Species and J-Values that changed by 10% or more in zonal mean: | GEOS-Chem Classic 13.0.0 vs 12.9.0 | GCHP 13.0.0 vs 12.9.0 |
Emissions that changed by 10% or more: | GEOS-Chem Classic 13.0.0 vs 12.9.0 | GCHP 13.0.0 vs 12.9.0 |
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. Changes to benchmark setup
From GC_12.9.0.log: =============================================================================== R E S T A R T F I L E I N P U T Min and Max of each species in restart file [mol/mol]: Species 1, ACET: Min = 1.000000003E-30 Max = 2.716920022E-08 Species 2, ACTA: Min = 1.000000003E-30 Max = 7.725763085E-11 Species 3, AERI: Min = 1.037870635E-15 Max = 7.207419123E-12 Species 4, ALD2: Min = 4.684888406E-23 Max = 4.086598082E-08 ... Species 88, HONIT: Min = 1.000000003E-30 Max = 1.707073372E-11 Species 89, HPALD1: Use background = 9.999999683E-21 Species 90, HPALD2: Use background = 9.999999683E-21 Species 91, HPALD3: Use background = 9.999999683E-21 Species 92, HPALD4: Use background = 9.999999683E-21 Species 93, HPETHNL: Use background = 9.999999683E-21 ... From GCC_13.0.0-beta.0.log: =============================================================================== R E S T A R T F I L E I N P U T Min and Max of each species in restart file [mol/mol]: Species 1, ACET: Min = 1.198645368E-22 Max = 1.961477203E-08 Species 2, ACTA: Min = 7.944660459E-23 Max = 9.854482785E-10 Species 3, AERI: Min = 3.872448817E-16 Max = 1.060779242E-11 Species 4, ALD2: Min = 3.997531496E-23 Max = 1.028521712E-08 ... Species 88, HONIT: Min = 8.688050479E-44 Max = 4.034103954E-11 Species 89, HPALD1: Min = 0.000000000E+00 Max = 8.148696995E-11 Species 90, HPALD2: Min = 0.000000000E+00 Max = 1.696967566E-10 Species 91, HPALD3: Min = 0.000000000E+00 Max = 5.354099109E-11 Species 92, HPALD4: Min = 0.000000000E+00 Max = 1.183441123E-10 Species 93, HPETHNL: Min = 0.000000000E+00 Max = 1.283986667E-10 ... 2. CEDS_GBD-MAPS emission inventory (1970 - 2017)
############################################################################### ### Emissions totals for inventory CEDS ### ### Ref = GCC_12.9.0; Dev = GCC_13.0.0-beta.0 ### ############################################################################### Ref Dev Dev - Ref CEDS ALD2 : 0.154944 0.154553 -0.000391 Tg CEDS ALK4 : 5.366765 6.199071 0.832306 Tg CEDS BCPI : 0.124817 0.091399 -0.033419 Tg CEDS BCPO : 0.499270 0.365595 -0.133675 Tg CEDS BENZ : 0.538499 0.540498 0.002000 Tg CEDS C2H6 : 0.000000 0.000000 0.000000 Tg CEDS C3H8 : 0.000000 0.000000 0.000000 Tg CEDS CH2O : 0.207237 0.188655 -0.018582 Tg CEDS CH4 : 0.000000 nan nan Tg CEDS CO : 48.242726 43.334313 -4.908413 Tg CEDS EOH : 0.338720 0.192327 -0.146393 Tg CEDS HCOOH : 0.790157 0.787156 -0.003002 Tg CEDS MEK : 0.259010 0.317764 0.058754 Tg CEDS MOH : 0.235222 0.256436 0.021214 Tg CEDS NH3 : 4.601724 4.532344 -0.069381 Tg CEDS NO : 6.332088 5.357930 -0.974158 Tg CEDS OCPI : 0.775254 0.517257 -0.257997 Tg CEDS OCPO : 0.775254 0.517257 -0.257997 Tg CEDS PRPE : 0.273593 0.278035 0.004443 Tg CEDS SO2 : 8.222032 5.677984 -2.544048 Tg CEDS SO4 : 0.254883 0.176018 -0.078865 Tg CEDS SOAP : 3.328738 2.990056 -0.338683 Tg CEDS TOLU : 0.641471 0.694438 0.052966 Tg CEDS XYLE : 0.627999 0.653520 0.025521 Tg CEDS pFe : 0.008222 0.005678 -0.002544 Tg 3. Retire carbon-based units for VOCs
4. Heterogeneous chem fixes, performance improvements, and clarification
5. The following updates introduced differences on the order of numerical noise:
Additional notes:
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Approval | ||
Requires further investigation: | ||
Approved by: | ||
Date of approval: |
1-year full-chemistry benchmarks
Model setup
The following table describes the GEOS-Chem setup for both GEOS-Chem Classic and GCHP 1-year benchmark simulations.
Git tag(s): | TBD |
Compared to previous benchmark: | 12.9.0 |
Software environment: | ifort 18.0.5 OpenMPI 4.0.1 netcdf-fortran 4.5.2 CMake 3.16.1 ESMF 8.0.1 |
Meteorology fields: | MERRA-2
|
Spin-up initial conditions: | TBD
|
Benchmark date: | Spin-up run: Jan 2018 - Dec 2018 Production run: Jan 2019 - Dec 2019 |
Benchmark Plots and Tables
Coming soon
1-year transport tracers benchmarks
Model setup
The following table describes the GEOS-Chem setup for both GEOS-Chem Classic and GCHP 1-year benchmark simulations.
Git tag(s): | TBD |
Compared to previous benchmark: | 12.9.0 |
Software environment: | ifort 18.0.5 openmpi 4.0.1 netcdf-fortran 4.5.2 cmake 3.16.1 |
Meteorology fields: | MERRA-2
|
Benchmark date: | Spinup run: Jan 2015 - Dec 2018 Production run: Jan 2019 - Dec 2019 |
Benchmark Plots and Tables
Coming soon
10-year stratospheric benchmarks
Model setup
The following table describes the GEOS-Chem setup for both GEOS-Chem Classic and GCHP 10-year benchmark simulations.
Git tag(s): | TBD |
Compared to previous benchmark: | N/A |
Software environment: | ifort 18.0.5 openmpi 4.0.1 netcdf-fortran 4.5.2 cmake 3.16.1 |
Meteorology fields: | MERRA-2
|
Benchmark date: | Jan 2010 - Dec 2019 |
Benchmark Plots and Tables
Coming soon