GEOS-Chem 13.4.0

GEOS-Chem Versions Page

This page includes information about GEOS-Chem 13.4.0

Version overview

The following items have been added to GEOS-Chem 13.4.01 since the last benchmark for GEOS-Chem 13.3.0. Also see the following Github pages:

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

Feature	Contributor(s)	Model scope	Notes and references
Updates that will affect full-chemistry benchmark simulations
Use updated definition of PM2.5; Add PM10 diagnostic	Bob Yantosca (GCST)	Diagnostics & Benchmarking	geoschem/geos-chem PR #992 Particulate Matter in GEOS-Chem (wiki) NOTE: This update will cause PM2.5 diagnostic output to change slightly, which will be reflected as differences in benchmark plots
Use degassing-only volcano emissions in GEOS-Chem benchmark simulations	Christoph Keller (GMAO) Daniel Jacob (Harvard)	Emissions	geoschem/geos-chem #1005 NOTE: This will make it easier to compare results to past benchmarks in case the benchmark year should change.
Updates that will NOT affect full-chemistry benchmark simulations
TBD
Updates that will only affect GCHP
TBD