GEOS-Chem 14.5.0
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Version overview
This version is currently in development
| Model | GitHub Release Page | DOI |
|---|---|---|
| GEOS-Chem Classic 14.5.0 | TBD | TBD |
| GCHP 14.5.0 | TBD | TBD |
Submodule updates this version
The following submodules were updated to new versions in this release.
| Submodule version | GitHub release page | DOI |
|---|---|---|
| GEOS-Chem 14.5.0 | TBD | TBD |
| HEMCO 3.10.0 | TBD | TBD |
What's new in this version
Updates that will affect full-chemistry benchmark simulations
| Feature | Contributor(s) | Model scope | Notes and references |
|---|---|---|---|
| Pass non-zero Ca2, Mg, and K cations to HETP | Becky Alexander (UW) Lizzie Lundgren (Harvard) |
Aerosols | |
| Allow per-species definition of KPP absolute and relative solver tolerances; Set absolute tolerances of dummy species to large value | Obin Sturm (USC) Bob Yantosca (Harvard) |
Chemistry | |
| Fix bugs in PDER, OCPISOA and TotalOC in complexSOA | Yuanjian Zhang (WashU) | Chemistry | |
| Add fixes for ALK4 and R4N2 chemistry from Brewer et al. (2023, JGR) | Jared Brewer (UMN) | Chemistry | |
| Chemistry for RCOOH, monoterpenes, new PNs and ANs from Travis et al. (2024) | Jared Brewer (UMN) | Chemistry | |
| Adding PPN photolysis | Bex Horner (UCL) | Chemistry | |
| Restore dry deposition output in GCHP & GCClassic fullchem benchmark simulations | Bob Yantosca (Harvard) | Diagnostics | |
| Add emission factors for ALK6, C4H6, EBZ, STYR, TMB emissions in GFED and FINN biomass burning | Kelvin Bates (Colorado) | Emissions | |
| Cloud-J v8.0 including UV H2O absorption | Lizzie Lundgren (Harvard) Michael Prather (UCI) |
Photolysis | |
| Fix mass non-conservation in VDIFF PBL mixing | Nick Balasus (Harvard) | PBL mixing |
Updates that will NOT affect full-chemistry benchmark simulations
| Feature | Contributor(s) | Model scope | Notes and references |
|---|---|---|---|
| Update GFED4_Climatology entries for period 2010-2023 with new species | Bob Yantosca (Harvard) | Emissions | |
| Fix pressure handling in HEMCO standalone | Bob Yantosca (Harvard) | HEMCO standalone | |
| Update run scripts and environment files for NASA discover cluster | Lizzie Lundgren (Harvard) | NASA Discover |
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 |
|---|---|---|---|
| Aerosol optics | aerosol-only fullchem |
Configuration files (brc.dat, dust.dat, h2so4.dat, org.dat, so4.dat, soot.dat, ssa.dat, ssc.dat containing optical properties were copied here. Used for computing AOD. | ExtData/CHEM_INPUTS/Aerosol_Optics/2024-08/ |
| GFED4 climatology | fullchem | Climatology and monthly-mean emissions for period 2010-2023, with species that were added in 14.5.0, namely:
|
ExtData/HEMCO/GFED4/v2023-03/ |
| Cloud-J inputs | fullchem | Copy of v2023-05 with H2O UV absorption cross-sections added, species PPN added, and aerosol dat-files used for computing AOD in GEOS-Chem removed. | ExtData/CHEM_INPUTS/CLOUD_J/2024-09/ |
| Cloud-J inputs | Hg | Copy of v2023-11-Hg with H2O UV absorption cross-sections added and aerosol dat-files used for computing AOD in GEOS-Chem removed. NOTE: Cloud-J in Hg simulation is in development. |
ExtData/CHEM_INPUTS/CLOUD_J/2024-09-Hg/ |