GEOS-Chem 14.4.0

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GEOS-Chem Versions Page

This page includes information about GEOS-Chem 14.4.0.

Version overview

This version is currently in development

Repository GitHub Milestone DOI
GCClassic 14.4.0 14.4.0 milestone for geoschem/GCClassic TBD
GCHP 14.4.0 14.4.0 milestone for geoschem/GCHP TBD
GEOS-Chem (science codebase) 14.4.0 14.4.0 milestone for geoschem/geos-chem TBD
HEMCO 3.9.0 3.9.0 milestone for geoschem/HEMCO TBD

What's new in this version

Updates that will affect full-chemistry benchmark simulations

Feature Contributor(s) Model scope Notes and references
Use GCARR_ac rate-law function for full-chemistry reactions where the Arrhenius B parameter is zero Bob Yantosca (Harvard) Chemistry
Add diel and day-of-week scale factors to global base emissions Dandan Zhang (WashU) Emissions
Updated 0.1x0.1 timezone file accounting for daylight savings Karn Vohra (UCL) Emissions
Update surface methane boundary condition using NOAA flask data Lee Murray (Rochester) Input data

Updates that will NOT affect full-chemistry benchmark simulations

Feature Contributor(s) Model scope Notes and references
Rename tags in geoschem_config.yml for nitrate aerosol photolysis as per GCSC suggestion Bob Yantosca (Harvard) Run directory
Remove remaining binary punch diagnostic code Bob Yantosca (Harvard) 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 Simulations What was added? Directory
NOAA GMD CH4 surface boundary conditions Fullchem ExtData/HEMCO/NOAA_GMD/v2023-10

1-month full-chemistry benchmarks

TBD