GEOS-Chem 14.1.0

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GEOS-Chem Versions Page

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

Version overview

This version is currently in development

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

Feature Contributor(s) Model scope Notes and references
Updates that will affect full-chemistry benchmark simulations
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU) 		Chemistry
Add MO2 + NO3 reaction Kelvin Bates (Harvard) Chemistry
Revision to a rate constant for the C2H4 scheme Kelvin Bates (Harvard) Chemistry
Fix product in HOBr/Cl + S(IV) reactions Xuan Wang (CUHK) Chemistry
Fix molecular weight of CH4 Xueying Yu (UMN) Chemistry
Bug fix for computing fraction land type Lizzie Lundgren (Harvard) Chemistry
Bug fix: Treat SO4s and NITs as coarse aerosol in wet scavenging Mike Long (GMAO)
Christoph Keller (GMAO)
Becky Alexander (UW) 		Wetdep
Bug fixes for handling sea salt alkalinity Becky Alexander (UW)
Hansen Cao (UW)
Mike Long (GMAO)
Mat Evans (York) 		Fullchem simulations
Bug fix: Initialize CO2 to a relevant value for full-chemistry Mike Long (GMAO) Chemistry
Retire land-water-ice (LWI) input field Lizzie Lundgren (Harvard) Met fields
Updates that will NOT affect full-chemistry benchmark simulations
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions
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
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT) 		Hg simulation
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard) 		Specialty simulation
Add gfortran compiler switches to turn on code sanitization, which checks for memory leaks Bob Yantosca (Harvard) Structural
Add capability to write metadata for defined species to a YAML file Bob Yantosca (Harvard) Structural
Output satellite diagnostics as NetCDF Joshua Shutter (UMN)
Eloise Marais (UCL)
Bob Yantosca (Harvard) 		Diagnostics
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics
Structural updates to facilitate coupling GEOS-Chem to CESM: Haipeng Lin (Harvard) CESM-GC
Structural
Fix complex SOA definition in error check Haipeng Lin (Harvard) ComplexSOA
Updates that will only affect GCHP
Update MAPL from v2.18.3 to v2.26.0 Lizzie Lundgren (Harvard) GCHP
GMAO libraries
Fix missing value handling in HEMCO for GCHP and GEOS Lizzie Lundgren (Harvard) HEMCO
Improve MAPL error handling of corrupted input files Lizzie Lundgren (Harvard) MAPL
Fix missing value handling in GCHP Lizzie Lundgren (Harvard) GCHP/GEOS
Fix bug where GCHP fraction snow is all zeroes Lizzie Lundgren (Harvard) Met fields
Tagged O3 simulation in GCHP Xingpei Yu (PKU)
Jourdan He (WashU) 		TagO3 simulation
GCHP diagnostic bug fixes: Melissa Sulprizio (Harvard)
Lizzie Lundgren (Harvard) 		Diagnostics
Add GCHP operational example run scripts (MIT, York)

Sebastian Eastham (MIT)
Killian Murphy (York)

Run directory

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
Updated CH4 files
(Fixes netCDF file issues) 		CH4
carboncycle
  • CH4loss from GMI
    (netCDF longitudes fixed)
  • EDGARv6 emissions
    (netCDF timestamps fixed)
  • GEPA emissions
    (netCDF files edited for COARDS compliance)
  • Lakes emissions
    (netCDF files edited for COARDS compliance)
  • Scarpelli_Mexico emissions
    (netCDF files edited for COARDS compliance)
 ExtData/HEMCO/CH4/v2022-11/


Updated CO2 files
(Fixes netCDF file issues) 		CO2
carboncycle
  • FOSSIL (netCDF longitudes fixed)
  • OCEAN (netCDF longitudes fixed)
 ExtData/HEMCO/CO2/v2022-11/
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

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