GEOS-Chem 13.4.0
This page includes information about GEOS-Chem 13.4.0 (currently under development)
Contents
Version overview
The following items have been added to GEOS-Chem 13.4.0 since the last GEOS-Chem version GEOS-Chem 13.3.4. Also see the following Github pages:
- 13.4.0 milestone for geoschem/geos-chem
- 13.4.0 milestone for geoschem/GCHP
- 3.4.0 milestone for geoschem/HEMCO
Feature | Contributor(s) | Model scope | Notes and references |
---|---|---|---|
Updates that will affect full-chemistry benchmark simulations | |||
Migrating sulfate chemistry into KPP | Mike Long (GCST) Viral Shah (Harvard) Bob Yantosca (GCST) |
Chemistry & Structural |
|
Fix bug in Henry law CALC_HEFF routine in hetchem computations | Viral Shah (Harvard) | Chemistry | |
Bug fix: Remove double-counting of HCl uptake on acidic sea salt | Viral Shah (Harvard) | Chemistry | |
Update surface resistance for ozone deposition to ice/snow | Ryan Pound (York) Shuting Zhai (UW) |
Drydep | |
Use updated definition of PM2.5; Add PM10 diagnostic | Bob Yantosca (GCST) | Diagnostics & Benchmarking |
|
Fix scale factors applied to VOC aircraft emissions in AEIC inventory | Flavio Quadros (TU Delft) Seb Eastham (GCST) |
Emissions & Bug Fix |
|
HEMCO bug fix: restore archiving via manual diagnostics (which had been inadvertently disabled in a prior update) | Melissa Sulprizio (GCST) Bob Yantosca (GCST) |
Emissions | |
Use degassing-only volcano emissions in GEOS-Chem benchmark simulations | Christoph Keller (GMAO) Daniel Jacob (Harvard) |
Emissions & Benchmarking |
|
Add option for driving GEOS-Chem with native GEOS meteorological files | Liam Bindle (GCST) | Structural | |
Updates that will NOT affect full-chemistry benchmark simulations | |||
Updated Hg chemistry in KPP | Viral Shah (Harvard) Colin Thackray (Harvard) Mike Long (GCST) Bob Yantosca (GCST) |
Chemistry |
|
Bug fix: Use REAL*8 precision in for CH3O2 + OH reaction definition in fullchem.eqn | Bob Yantosca (GCST) | Chemistry |
|
Updated Global Inventory of Methane Emissions from Oil/Gas/Coal (GFEI v2) | Tia Scarpelli (U. Edinburgh) | Emissions |
|
Anthropogenic Methane Emission Inventory for Canada | Tia Scarpelli (U. Edinburgh) | Emissions |
|
Use EDGARv6 global anthro emissions for CH4 simulation | Melissa Sulprizio (GCST) | Emissions | |
Updated Rn-222 emissions for TransportTracers simulations | Bo Zhang (NIA) | Emissions |
|
Retire HEMCO extension for CH4 wetland emissions | Melissa Sulprizio (GCST) | Emissions |
|
Updates to enable automated run directory creation | Liam Bindle (GCST) Melissa Sulprizio (GCST) |
Run directory |
|
Bug fix: Allow GEOS-Chem Classic History to archive irregular intervals (e.g. a month and a day) | Bob Yantosca (GCST) | Diagnostics |
|
Updates for running GEOS-Chem within GEOS | Christoph Keller (GMAO) Lizzie Lundgren (GCST) |
GEOS |
|
Updates that will only affect GCHP | |||
Add capability to use mass fluxes in advection | Sebastian Eastham (MIT) Liam Bindle (GCST) |
Advection |
|
Define a GCHP "Default" diagnostic collection that will archive a small number of commonly-requested diagnostic fields | Liam Bindle (GCST) | Structural | |
Add capability to read native meteorological data files | Liam Bindle (GCST) Bob Yantosca (GCST) |
Structural |
|
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 | Needed for | What was added? | Directory |
---|---|---|---|
ZHANG_Rn222 | TransportTracers simulations only | Updated Rn222 emissions for TransportTracers simulations. See Bo Zhang et al (2021) | HEMCO/ZHANG_Rn222/v2021-11 |
Updated Hg simulation restart file | Hg simulations only | Sample restart file for the updated Hg mechanism. See Viral Shah et al (2021) | ExtData/GEOSCHEM_RESTARTS/v2021-12 |
Updated TOMAS simulation restart files | TOMAS simulations only | Added HSO3m and SO3mm species to TOMAS restart files | ExtData/GEOSCHEM_RESTARTS/v2021-12 |
1-month benchmarks
Model setup for 1-month benchmarks
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: | 13.3.0 |
Software environment: | gcc 10.2.0 OpenMPI 4.1.0 netcdf-fortran 4.5.3 CMake 3.17.3 ESMF 8.0.1 |
Model resolution: |
|
Meteorology fields: | MERRA-2
|
Initial conditions: | July 1, 2019
|
Benchmark month: | July 2019 |
Emissions setup: | TBD |
Chemistry mechanism: | TBD |
This version will impact: (select all that apply with boldface) |
|
1-month fullchem: GEOS-Chem Classic 13.4.0-rc.0 vs 13.3.0
NOTES:
- Enable PDF bookmarks in the file links to navigate between species. If you do not see bookmarks in your browser try using a different browser (not Safari) or installing an Adobe Acrobat plug-in.
- See the species database for species definitions and details.
- Species categories and lumped species are defined in YAML files within the GEOS-Chem post-processing software GCPy.
1-month fullchem: GEOS-Chem Classic 13.4.0-rc.0 vs 13.4.0-rc.0
Below are links to plots and tables comparing 1-month simulations for GEOS-Chem Classic 13.4.0-rc.0 (Dev) and GEOS-Chem Classic 13.4.0-rc.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, 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 |