GEOS-Chem 13.2.1

GEOS-Chem Versions Page

This page includes information about GEOS-Chem 13.2.1 which is currently in development.

Version overview

• Release date: 10 Sep 2021
• DOI for GEOS-Chem Classic: 10.5281/zenodo.5500717
• DOI for GCHP: 10.5281/zenodo.5500718

The following items have been added to GEOS-Chem 13.2.1 since the last benchmark for GEOS-Chem 13.2.0. See also the following Github pages:

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

Feature	Contributor(s)	Model scope	Notes
Updates that will affect full-chemistry simulations
Retire tropchem simulation as an option	Melissa Sulprizio (GCST)	Structural	NOTE: Users can still choose between simulations with 72 or 47 vertical levels
Bug fix: Make sure JvalO3O1D and JValO3O3P diagnostic arrays are zeroed in flexchem_mod.F90	Haipeng Lin (Harvard) Lizzie Lundgren (GCST))	Diagnostics	NOTE: This update will cause JvalO3O1D and JvalO3O3P plots to differ w/r/t previous versions, but will not affect benchmark metrics such as mean OH concentration, MCF lifetime, etc.
Updates that will not affect full-chemistry simulations
Planeflight diagnostic bug fixes: Fixed incorrect unit conversions in planeflight diagnostic output Run stops unexpectedly when converting altitude -> pressure	Tess Carter (MIT) Bob Yantosca (GCST)	Diagnostics
Fixed typo in gc_grid_mod.F90 that caused a regridding error in nested-grid simulations	Lizzie Lundgren (GCST) Bob Yantosca (GCST)	Grids	Also see: geoschem/geos-chem #788 geoschem/geos-chem #786
Enable nested-grid integration testing with the following updates: Fullchem Create a new sample boundary condition file for nested-grid simulations HEMCO_Config.rc.fullchem file now points to the new sample boundary condition files Include nested-grid integration tests (these had been disabled) Turn off NEI2011 by default for North-America nested-grid simulations CH4 Add a new sample boundary conditions file for CH4 nested grids	Bob Yantosca (GCST)	Nested-grid & Testing
Add WashU data server to GCHP data download script	Liam Bindle (WashU)	Data download
Update the download_data.py script to read global settings from a YAML file Also enables downloads from http://geoschemdata.wustl.edu	Bob Yantosca (GCST)	Data download
Bug fix: Halt simulation if Restart.frequency does not match Restart.duration in HISTORY.rc (for GEOS-Chem Classic only)	Bethany Sutherland (NCST) Bob Yantosca (GCST)	Diagnostics
Bug fixes for nested-grid simulations: Bug fix: Compute grid box latitude edges properly for nested-grid simulations This fixes a bug introduced by the GCAP 2.0 met field updates in 13.1.0 In TPCORE_NESTED, set iord_bg=iord and jord_bg=jord	Bob Yantosca (GCST) Eloise Marais (UCL)	Nested Grids
Bug fixes for Hg simulation: Now zero geogenic Hg emissions if LAnthroHgOnly flag is turned on Fix small negative values in Streets Hg emissions file	Harriet Gounia (Wollongong) Jenny Fisher (Wollongong) Bob Yantosca (GCST) Colin Thackray (Harvard)	Hg simulation
Run directory updates for GEOS-Chem in GEOS	Christoph Keller (GMAO) Lizzie Lundgren (GCST)	GEOS
Updates that will only affect GCHP
Bug fix for vertical scale factors in ExtData.rc	Seb Eastham (MIT) Melissa Sulprizio (GCST)	Config files
Bug fix for better error messages if GCHP throws an error during set up	Liam Bindle (WashU)	MAPL	Also see: geoschem/MAPL #13
NetCDF read errors now print an error message that includes the offending file's path and a description of the error	Liam Bindle (WashU)	MAPL	Also see: See geoschem/MAPL #14
Minor GCHP run directory updates	Lizzie Lundgren (GCST)	Rundir creation

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	Type	What was added?	Directory
HEMCO/SAMPLE_BCs/v2021-07	Optional	Sample boundary condition files for testing nested-grid simulations (currently: fullchem, CH4)	HEMCO/SAMPLE_BCs/v2021-07