GEOS-Chem 13.1.0

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This page includes information about GEOS-Chem 13.1.0.

Version overview

The following items have been added to GEOS-Chem 13.1.0 since the last benchmark for GEOS-Chem 13.0.0. See also the 13.1.0 milestone on Github.

Feature	Submitted by	Type	Notes
Updates that will affect full-chemistry simulations
Distribute emissions vertically in the boundary layer	Barron Henderson (EPA) GCST	Science
Diurnal scale factors of power plants emissions in China	Hongjian Weng (PKU) Jintai Lin (PKU)	Science	See geoschem/geos-chem #548 Scale factors are applied to CEDS energy sector emissions over China
Fix H2O boundary conditions at tropopause	Sebastian Eastham (MIT)	Bug fix
Initial modifications for HEMCO internal grid	Haipeng Lin (Harvard)	Structural
Updates to speed up the chemical solver Remove useless computations from reaction rate-law functions Use !$OMP COLLAPSE(3) to vectorize the parallel loop in DO_FLEXCHEM	Bob Yantosca (GCST) Chris Holmes (FSU)	Structural
Update PM2.5 definition	Randall Martin (WashU)	Diagnostic
Fix parallelization issues in ISORRPOIA and get_ndep_mod.F90	Bob Yantosca (GCST)	Bug fix
Updates that will NOT affect full-chemistry simulations
GCAP 2.0	Lee Murray (Rochester)	Science	See geoschem/geos-chem #670 and geoschem/HEMCO #77
Updated CH4 emissions, including: Emissions through 2019 for GFED4 and JPL WetCharts inventories Anthropogenic emissions over Mexico from Scarpelli et al. (2020)	Xiao Lu (Harvard) Tia Scarpelli (Harvard)	Science
Restore J-values for the planeflight diagnostic	Tomas Sherwen (York)	Diagnostics
Retire RRTMG binary diagnostics	Lizzie Lundgren (GCST)	Diagnostics
Bug fix for nested grid simulations to read boundary conditions continuously	Melissa Sulprizio (GCST)	Bug fix
Features only affecting GCHP:
Initial modifications for GCHP adjoint - CO2 simulation	Colin Lee (CUBoulder)	Structural
Update GMAO submodules in GCHP	Lizzie Lundgren (GCST)	Structural	MAPL updated from v2.2.7 to v2.6.3 Library updates exclude ESMA_cmake
Use logging.yml for MAPL ExtData debug prints	Sebastian Eastham (MIT) Tom Clune (GMAO)	Config files
Add monthly diagnostic capability to History	Atanas Trayanov (GMAO)	Diagnostics	Monthly diagnostics no longer require breaking up runs into 1-month jobs
Change GCHP diagnostic filenames to be same as GEOS-Chem Classic	Lizzie Lundgren (GCST) Atanas Trayanov (GMAO)	Diagnostics	Time-averaged file timestamp changed from averaging period mid-point to start Filename prefix changed from GCHP to GEOSChem
Retire support for ifort18 fortran compiler	GCST	Environment

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
VerticalScaleFactors	DEFAULT	Scale factors for vertically distributing CEDS energy, industry, and ship emissions	HEMCO/VerticalScaleFactors/v2020-05
GCAP 2.0	OPTIONAL	GCAP 2.0 meteorology	GCAP2
Restart files for GCAP2	OPTIONAL	GCAP 2.0 restart files	ExtData/GCAP2_RESTARTS/
GCAP2	OPTIONAL	Oxidant fields and prod/loss rates for GCAP 2.0 simulations	HEMCO/GCAP2/
CMIP6	OPTIONAL	CEDS (historical) or Shared Socioeconomic Pathways (future) emissions, consistent with the CMIP6 simulation experimental design. Includes BB4MIPs biomass burning emissions.	HEMCO/CMIP6/v2021-01/

1-month benchmarks

TBD