GEOS-Chem 14.1.0

GEOS-Chem Versions Page

This page includes information about GEOS-Chem 14.1.0. This version is currently in development. The GEOS-Chem model development priorities page lists additional developments that may be added.

Version overview

The following items have been added to GEOS-Chem 14.1.0. Also see the following Github pages:

• 14.1.0 milestone for geoschem/geos-chem
• 14.1.0 milestone for geoschem/GCHP

Feature	Contributor(s)	Model scope	Notes and references
Updates that will affect full-chemistry benchmark simulations
Add MO2 + NO3 reaction	Kelvin Bates (Harvard)	Chemistry	See geoschem/geos-chem PR #1444 See geoschem/geos-chem #1235
Revision to a rate constant for the C2H4 scheme	Kelvin Bates (Harvard)	Chemistry	See geoschem/geos-chem PR #1447 See geoschem/geos-chem #1274
Fix product in HOBr/Cl + S(IV) reactions	Xuan Wang (CUHK)	Chemistry	See geoschem/geos-chem PR #1448 See geoschem/geos-chem #1298
Bug fix: Treat SO4s and NITs as coarse aerosol in wet scavenging	Mike Long (GMAO) Christoph Keller (GMAO) Becky Alexander (UW)	Wetdep	See geoschem/geos-chem PR #1426 See geoschem/geos-chem #1414
Updates that will NOT affect full-chemistry benchmark simulations
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	See geoschem/geos-chem PR #1367
AMAP 2015 emissions from GMA2018	Helene Angot(MIT) Ari Feinberg (MIT) Noelle Selin (MIT)	Hg simulation	See geoschem/geos-chem PR #1367
Updates that will only affect GCHP
TBD

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
2018 AMAP/UNEP Global Mercury Assessment Emissions	Hg	Emissions of Hg0, Hg2, HgP (base year 2015) are provided for the following sectors Artisanal/small scale gold mining, Power generation Industry Other intentional uses.	ExtData/HEMCO/MERCURY/v2022-10/
OCS_FLUX	carboncycle	OCS surface fluxes from model simulations by JPL (provided by Kevin Bowman)	ExtData/HEMCO/OCS_FLUX/v2022-11
Restart files	carboncycle fullchem TOMAS	GEOS-Chem Classic & GCHP restart files for the 14.1.0 fullchem and TOMAS simulations with PRO2 (family species) added GEOS-Chem Classic & GCHP restart files for the 14.1.0 carboncycle simulation	TBD

1-month benchmarks

TBD

1-year benchmarks

TBD