GEOS-Chem 14.1.0
This page includes information about GEOS-Chem 14.1.0. The GEOS-Chem model development priorities page lists additional developments that may be added.
Contents
- 1 Version overview
- 2 New data directories
- 3 1-month full-chemistry benchmarks
- 3.1 1-month benchmark setup
- 3.2 1-month internal benchmarks
- 3.3 1-month benchmark assessment form
- 3.4 1-month GEOS-Chem Classic version comparison (14.1.0 vs 14.0.2)
- 3.5 1-month GCHP version comparison (14.1.0 vs 14.0.2)
- 3.6 1-month GCHP vs GEOS-Chem Classic comparison
- 3.7 1-month GCHP vs GEOS-Chem-Classic diff-of-diffs
Version overview
This version is currently in development
The following items have been added to GEOS-Chem 14.1.0. Also see the following Github pages:
- 14.1.0 milestone for geoschem/GCClassic
- 14.1.0 milestone for geoschem/GCHP
- 14.1.0 milestone for geoschem/geos-chem (science code)
- 3.6.0 milestone for geoschem/HEMCO
Feature | Contributor(s) | Model scope | Notes and references |
---|---|---|---|
Updates that will affect full-chemistry benchmark simulations | |||
Adaptive chemical solver (as option) / KPP 3.0.0 | Mike Long (Harvard) Haipeng Lin (Harvard) Bob Yantosca (GCST) Lu Shen (PKU) |
Chemistry |
|
Add MO2 + NO3 reaction | Kelvin Bates (Harvard) | Chemistry | |
Revision to a rate constant for the C2H4 scheme | Kelvin Bates (Harvard) | Chemistry | |
Fix product in HOBr/Cl + S(IV) reactions | Xuan Wang (CUHK) | Chemistry | |
Fix molecular weight of CH4 | Xueying Yu (UMN) | Chemistry | |
Bug fix for computing fraction land type | Lizzie Lundgren (Harvard) | Chemistry | |
Bug fix: Treat SO4s and NITs as coarse aerosol in wet scavenging | Mike Long (GMAO) Christoph Keller (GMAO) Becky Alexander (UW) |
Wetdep | |
Fix double-titration of seasalt alkalinity | Becky Alexander (UW) Hansen Cao (UW) Mike Long (GMAO) Mat Evans (York) |
Fullchem simulations | |
Bug fix: Initialize CO2 to a relevant value for full-chemistry | Mike Long (GMAO) | Chemistry | |
Retire land-water-ice (LWI) input field | Lizzie Lundgren (Harvard) | Met fields | |
Updates that will NOT affect full-chemistry benchmark simulations | |||
HTAPv3 at 0.1 deg | Dandan Zhang (WashU) | Emissions | |
Improvements in modelled Hg0 dry deposition to land | Ari Feinberg (MIT) Noelle Selin (MIT) Thandolwethu Dlamini (MIT) Martin Jiskra (UBasel) Viral Shah (Harvard) |
Hg simulation | |
AMAP 2015 emissions from GMA2018 | Helene Angot(MIT) Ari Feinberg (MIT) Noelle Selin (MIT) |
Hg simulation | |
Add carbon simulation (CO2-CO-CH4-OCS) via KPP | Beata Bukosa (NIWA) Kevin Bowman (JPL) Mike Long (Harvard) |
Specialty simulation |
|
Add gfortran compiler switches to turn on code sanitization, which checks for memory leaks | Bob Yantosca (Harvard) | Structural | |
Add capability to write metadata for defined species to a YAML file | Bob Yantosca (Harvard) | Structural | |
Output satellite diagnostics as NetCDF | Joshua Shutter (UMN) Eloise Marais (UCL) Bob Yantosca (Harvard) |
Diagnostics | |
Add new species concentration diagnostic in units of molec/cm3 | Haipeng Lin (Harvard) | Diagnostics | |
RO2 diagnostic | Melissa Sulprizio (Harvard) | Diagnostics | |
Fix time slice in GCClassic time-averaged diagnostic output to match reference time | Bob Yantosca (Harvard) | Diagnostic | |
Fix timecycle flag for QFED and OFFLINE emissions in HEMCO_Config.rc | Charley Fite (FSU) | Emissions | |
Structural updates to facilitate coupling GEOS-Chem to CESM: | Haipeng Lin (Harvard) | CESM-GC Structural |
|
Fix complex SOA definition in error check | Haipeng Lin (Harvard) | ComplexSOA | |
Updates that will only affect GCHP | |||
Update MAPL from v2.18.3 to v2.26.0 | Lizzie Lundgren (Harvard) | GCHP GMAO libraries |
|
Fix missing value handling in HEMCO for GCHP and GEOS | Lizzie Lundgren (Harvard) | HEMCO | |
Improve MAPL error handling of corrupted input files | Lizzie Lundgren (Harvard) | MAPL | |
Fix bug where GCHP fraction snow is all zeroes | Lizzie Lundgren (Harvard) | Met fields | |
Tagged O3 simulation in GCHP | Xingpei Yu (PKU) Jourdan He (WashU) |
TagO3 simulation | |
GCHP diagnostic bug fixes: | Melissa Sulprizio (Harvard) Lizzie Lundgren (Harvard) |
Diagnostics | |
Add GCHP upward mass flux diagnostic to HISTORY.rc | Lizzie Lundgren (Harvard) | Diagnostics | |
Add GCHP operational example run scripts (MIT, York, NCI) | Sebastian Eastham (MIT) Killian Murphy (York) Jenny Fisher (U. Wollongong) |
Run directory |
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 | Simulations | What was added? | Directory |
---|---|---|---|
HTAPv3 | Fullchem (as option) | HTAPv3 anthropogenic emissions for 2000-2018 | ExtData/HEMCO/HTAPv3/v2022-12/ |
Updated CH4 files (Fixes netCDF file issues) |
CH4 carboncycle |
|
ExtData/HEMCO/CH4/v2022-11/
|
Updated CO2 files (Fixes netCDF file issues) |
CO2 carboncycle |
|
ExtData/HEMCO/CO2/v2022-11/ |
2018 AMAP/UNEP Global Mercury Assessment Emissions | Hg |
|
ExtData/HEMCO/MERCURY/v2022-10/ |
OCS_FLUX | carboncycle |
|
ExtData/HEMCO/OCS_FLUX/v2022-11 |
1-month full-chemistry benchmarks
1-month benchmark setup
The following table describes the GEOS-Chem setup for both GEOS-Chem Classic and GCHP 1-month benchmark simulations.
Git tag(s): |
|
Compared to previous benchmark: | 14.0.2 |
Software environment: |
|
Model resolution: |
|
Meteorology fields: | MERRA-2
|
Initial conditions: | July 1, 2019
|
Benchmark month: | July 2019 |
Chemistry setup: | See fullchem.eqn |
This version will impact: (select all that apply with boldface) |
|
1-month internal benchmarks
Each update that will introduce a significant change in the full-chemistry simulation is tagged with an alpha version in Git. For each of these alpha versions, the GCST runs an internal 1-month benchmark simulation to isolate the impact from that update.
For more details on the update(s) included in each alpha version and a link to benchmark results, see this Google sheet.
1-month benchmark assessment form
Performance | GEOS-Chem Classic | GCHP | |
---|---|---|---|
Grid resolution: | 4° x 5° | C24 | |
# CPUs, nodes: | 62 CPUs 1 node (AWS) |
62 CPUs 1 nodes (AWS) | |
Wall time: | 06:49:15 | 07:17:26 | |
Memory | 12.3 GB | 40.0 GB | |
Global mean OH: (% change from previous version) |
12.43694048476 x 105 molec/cm3 (+0.36%) |
x 105 molec/cm3 (-0.01%) | |
Methyl chloroform lifetime: (% change from previous version) |
4.967487 years (-0.58%) |
years (+0.024%) | |
Methane lifetime: (% change from previous version) |
8.371064 years (-0.60) |
years (+0.027%) | |
Details | |||
Species, J-Values, and COLUMN AOD values that changed by 10% or more at the surface: | GEOS-Chem Classic 14.0.0 vs 13.4.0 | GCHP 14.0.0 vs 13.4.0 | |
Species and J-Values that changed by 10% or more at 500 hPa: | GEOS-Chem Classic 14.0.0 vs 13.4.0 | GCHP 14.0.0 vs 13.4.0 | |
Species and J-Values that changed by 10% or more in zonal mean: | GEOS-Chem Classic 14.0.0 vs 13.4.0 | GCHP 14.0.0 vs 13.4.0 | |
Emissions that changed by 10% or more: | GEOS-Chem Classic 14.0.0 vs 13.4.0 | GCHP 14.0.0 vs 13.4.0 | |
Overview | |||
Below we summarize the notable changes caused by specific updates. See also the internal benchmark results which isolate impacts from specific updates.
This fix addressed the high O3 bias over the poles and decreased O3 by up to 10 ppb at high latitudes as shown in this plot. Global mean OH concentrations changed by -0.49% with this fix. This bug was identified when examining large differences in GEOS-Chem Classic vs GCHP that were introduced in 13.4.0. The decreases in O3 seen in GEOS-Chem Classic in this version largely correct the increases in O3 in GEOS-Chem Classic observed in 13.4.0
|
1-month GEOS-Chem Classic version comparison (14.1.0 vs 14.0.2)
Below are links to plots and tables comparing 1-month simulations for GEOS-Chem Classic 14.1.0 (Dev) and GEOS-Chem Classic 14.0.2 (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, HMS, BCPI, BCPO, OCPI, OCPO, AERI, BrSALA, BrSALC, ISALA, ISALC, NITs, SALA, SALC, SO4s, Simple_SOA, Complex_SOA, pFe |
sfc | 500hPa | full column | stratosphere | column total | AOD |
Bromine
Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr |
sfc | 500hPa | full column | stratosphere | column total | |
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 | column total | |
Nitrogen
NOy, NOx, HNO2, HNO3, HNO4, MPAN, NIT, NO, NO2, NO3, N2O5, MPN, PAN, PPN, N2O, NHx, NH3, NH4, MENO3, ETNO3, IPRNO3, NPRNO3, AONITA, ETHN, BZPAN, NPHEN |
sfc | 500hPa | full column | stratosphere | column total | |
Primary Organics
EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H2, C2H4, C2H6, C3H8, PRPE, TOLU, XYLE |
sfc | 500hPa | full column | stratosphere | column total | |
Secondary Organics
ACTA, ALD2, BALD, CH2O, HPALDs, MACR, IEPOX, ACET, HAC, MEK, MVK, ISOPN, GLYC, GLYX, HCOOH, MAP, PHEN, RCHO, ETHP, MP |
sfc | 500hPa | full column | stratosphere | column total | |
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 | column total | |
Sulfur
SOx, DMS, HMS, OCS, SO2, SO4 |
sfc | 500hPa | full column | stratosphere | column total | |
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 |
1-month GCHP version comparison (14.1.0 vs 14.0.2)
Below are links to plots and tables comparing 1-month simulations for GCHP 14.1.0 (Dev) and GCHP 14.0.2 (Ref).
Species Category2 | Plots | Additional Information | ||||
---|---|---|---|---|---|---|
Level Map | Zonal Mean | Emissions | ||||
Oxidants
O3, CO, OH, NOx |
sfc | 500hPa | full column | stratosphere | column total | |
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, pFe |
sfc | 500hPa | full column | stratosphere | column total | AOD |
Bromine
Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr |
sfc | 500hPa | full column | stratosphere | column total | |
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 | column total | |
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 | column total | |
Primary Organics
EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE |
sfc | 500hPa | full column | stratosphere | column total | |
Secondary Organics
ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, HAC, MEK, MVK, ISOPN, GLYC, GLYX, HCOOH, MAP, RCHO, MP |
sfc | 500hPa | full column | stratosphere | column total | |
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 | column total | |
Sulfur
SOx, DMS, HMS, OCS, SO2, SO4 |
sfc | 500hPa | full column | stratosphere | column total | |
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 |
1-month GCHP vs GEOS-Chem Classic comparison
Below are links to plots and tables comparing 1-month simulations for GCHP 14.1.0 (Dev) and GEOS-Chem Classic 14.1.0 (Ref).
Species Category2 | Plots | Additional Information | ||||
---|---|---|---|---|---|---|
Level Map | Zonal Mean | Emissions | ||||
Oxidants
O3, CO, OH, NOx |
sfc | 500hPa | full column | stratosphere | column total | |
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, pFe |
sfc | 500hPa | full column | stratosphere | column total | AOD |
Bromine
Bry, BrOx, Br, Br2, BrCl, BrNO2, BrNO3, BrO, CH3Br, CH2Br2, CHBr3, HOBr, HBr |
sfc | 500hPa | full column | stratosphere | column total | |
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 | column total | |
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 | column total | |
Primary Organics
EOH, MOH, ISOP, MTPA, MTPO, LIMO, ALK4, BENZ, CH4, C2H6, C3H8, PRPE, TOLU, XYLE |
sfc | 500hPa | full column | stratosphere | column total | |
Secondary Organics
ACTA, ALD2, CH2O, HPALDs, MACR, IEPOX, ACET, HAC, MEK, MVK, ISOPN, GLYC, GLYX, HCOOH, MAP, RCHO, MP |
sfc | 500hPa | full column | stratosphere | column total | |
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 | column total | |
Sulfur
SOx, DMS, HMS, OCS, SO2, SO4 |
sfc | 500hPa | full column | stratosphere | column total | |
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 |
1-month GCHP vs GEOS-Chem-Classic diff-of-diffs
Below are links to plots and tables comparing 1-month simulations for GCHP 14.1.0 - 14.0.2 (Dev) and GEOS-Chem Classic GCHP 14.1.0 - 14.0.2 (Ref).
Species Category2 | 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, pFe |
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, HAC, MEK, MVK, ISOPN, GLYC, 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 |