GEOS-ESM/GOCART

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GOCART Aerosol model including process library and framework interfaces (MAPL, NUOPC, and CCPP)

Stars: 29
Forks: 22
Open beginner issues: 0
Indexed issues: 60
Avg merge: 1d 16h
Merged PRs (30d): 4

Dominant language: Fortran
License: Apache-2.0
Last GitHub push: Aug 26, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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60 open issues indexed

Investigate lats/lons/corner_lats/corner_lons differences between ifort and ifx restarts Open

GEOS-ESM/GOCART#472 · 1 comment · 2 assignees · Opened Aug 19, 2026
migrate specification of sharedObj for regression (phase 1 of 2) Open

0 diff MAPL3

Difficulty 3/5 1-2 days Newbie friendliness 55/100

GEOS-ESM/GOCART#470 · Opened Aug 18, 2026
Remove AMIP.20C directories from develop/main Open

GEOS-ESM/GOCART#453 · 3 assignees · Opened May 26, 2026
Replace internal MAPL module references with USE MAPL or USE MAPL_Constants Open

MAPL3

Difficulty 3/5 1-2 days Newbie friendliness 74/100

GEOS-ESM/GOCART#449 · Opened May 22, 2026
Migrate MAPL2_GridGet off mapl_MaplGrid in SS2G_GridCompMod.F90 Open

Difficulty 1/5 Under an hour Newbie friendliness 85/100

GEOS-ESM/GOCART#434 · Opened May 12, 2026
Migrate MAPL_AllocateCoupling callers to MAPL_FieldEmptyComplete Open

MAPL3

Difficulty 2/5 1-3 hours Newbie friendliness 85/100

GEOS-ESM/GOCART#420 · Opened May 9, 2026
Port CA2G, SU2G, NI2G off implicit MAPL2 OpenMP aliases to explicit use MAPL Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

GEOS-ESM/GOCART#413 · Opened Apr 30, 2026
Port ReplenishAlarm.F90 off MAPL_MetaComp and MAPL_GetObjectFromGC Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

GEOS-ESM/GOCART#410 · Opened Apr 30, 2026
Negative rates of chemical destruction of carbon species Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

GEOS-ESM/GOCART#408 · 1 comment · Opened Apr 8, 2026
Where to download ExtData Open

help wanted

GEOS-ESM/GOCART#406 · 10 comments · 5 assignees · Opened Apr 8, 2026
Deactivate non-ported components on release/MAPL-v3 Open

enhancement

Difficulty 1/5 Under an hour Newbie friendliness 88/100

GEOS-ESM/GOCART#401 · Opened Apr 1, 2026
Issue with GEOSgcm v12 + ifx 2025.3 + GOCART with OPS Emissions Open

bug

GEOS-ESM/GOCART#398 · 1 assignee · Opened Mar 23, 2026
Potential bug with oxidants update function in GOCART2G library Open

GEOS-ESM/GOCART#384 · 4 comments · 1 assignee · Opened Feb 17, 2026
Fix callbacks to children Open

0 diff

GEOS-ESM/GOCART#352 · 1 assignee · Opened Aug 15, 2025
Simplify callback interfaces - name indirection Open

0 diff enhancement

GEOS-ESM/GOCART#351 · 1 comment · 1 assignee · Opened Aug 15, 2025
append_to_bundle making unnecessary call to MAPL_AllocateCoupling Open

0 diff Refactoring

Difficulty 1/5 Under an hour Newbie friendliness 55/100

GEOS-ESM/GOCART#330 · Opened May 30, 2025
ESMF_GridCompRun not checking userRC status Open

0 diff bugfix

Difficulty 3/5 1-2 days Newbie friendliness 35/100

GEOS-ESM/GOCART#326 · Opened May 30, 2025
Consistency of aerosol microphysical properties with optics tables Open

GEOS-ESM/GOCART#318 · 7 comments · 2 assignees · Opened Apr 29, 2025
Move GOCART Process Library to its own repository Open

0 diff 0 diff structural

GEOS-ESM/GOCART#317 · 3 comments · 4 assignees · Opened Apr 23, 2025
Do not install ACG configuration files Open

GEOS-ESM/GOCART#315 · 2 comments · 3 assignees · Opened Apr 7, 2025
bugs on nSubsteps Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

GEOS-ESM/GOCART#313 · 11 comments · Opened Apr 3, 2025
Illegal/incorrect type for loop variable in process library Open

bug

GEOS-ESM/GOCART#306 · 1 comment · 1 assignee · Opened Mar 6, 2025
GEOSgcm v12: Updates needed for instance files and RRTMGP Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

GEOS-ESM/GOCART#303 · Opened Feb 21, 2025
Update Open

0 diff

GEOS-ESM/GOCART#301 · 5 comments · 1 assignee · Opened Feb 11, 2025
Floating divide by zero in subroutine SettlingSolver Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

GEOS-ESM/GOCART#299 · Opened Jan 15, 2025
GOCART AMIP Develop only runs on certain dates: SU volcanoes Open

bug

GEOS-ESM/GOCART#293 · 7 comments · 1 assignee · Opened Oct 8, 2024
are there unit test we can run after installing, can unit testing better support UFS? Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

GEOS-ESM/GOCART#292 · 4 comments · Opened Oct 7, 2024
Remove hardcoded values for fwet and add to instance.rc files Open

GEOS-ESM/GOCART#291 · 1 assignee · Opened Oct 2, 2024
Introduce "Run3" for GOCART Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

GEOS-ESM/GOCART#279 · Opened Jul 10, 2024
Sulfate Grid Comp should not run through bins Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

GEOS-ESM/GOCART#276 · Opened May 24, 2024
Need scaling for CEDS emissions beyond 2019. Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

GEOS-ESM/GOCART#268 · Opened Mar 7, 2024
Remove ExtData.rc files. Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

GEOS-ESM/GOCART#267 · Opened Mar 7, 2024
Update some logic in SU2G_GridCompMod Open

0 diff structural bugfix

GEOS-ESM/GOCART#263 · 1 comment · 1 assignee · Opened Feb 2, 2024
append_to_bundle in GOCART and checkpoint states in MAPL Open

enhancement

GEOS-ESM/GOCART#258 · 3 comments · 1 assignee · Opened Dec 8, 2023
set clobber variable from run configuration file Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

GEOS-ESM/GOCART#256 · 5 comments · Opened Oct 16, 2023
Test and Evaluate Dust Schemes Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

GEOS-ESM/GOCART#255 · 2 comments · Opened Oct 10, 2023
Missing values and MAPL Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

GEOS-ESM/GOCART#252 · 11 comments · Opened Aug 18, 2023
Unnecessary error messages issued when 470nm or 870nm channels are missing in GOCART resource file. Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

GEOS-ESM/GOCART#247 · Opened Jul 25, 2023
Data-driven GOCART does not pass start-stop regression Open

bug

GEOS-ESM/GOCART#244 · 1 assignee · Opened Jun 12, 2023
Confusing Normalization of Aerosol Optical Properties inside Radiation Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

GEOS-ESM/GOCART#235 · 2 comments · Opened May 16, 2023
Improve long names for AOD fields Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

GEOS-ESM/GOCART#233 · Opened May 15, 2023
GOCART2G_GridComp too cozy with MOIST parameterizations Open

architecture violation

Difficulty 5/5 Over a week Newbie friendliness 25/100

GEOS-ESM/GOCART#231 · 2 comments · Opened May 12, 2023
Need to be able to disable ANY combination of GOCART2G components for debugging purposes Open

enhancement Refactoring

GEOS-ESM/GOCART#222 · 1 assignee · Opened Apr 3, 2023
Hardcoded assumption for number of NI instances in GOCART2G Open

GEOS-ESM/GOCART#220 · 1 comment · 3 assignees · Opened Mar 31, 2023
MAPL 2.34.0 failed in ufs weather model Open

GEOS-ESM/GOCART#207 · 47 comments · 3 assignees · Opened Feb 24, 2023
Preliminary carbon updates Open

GEOS-ESM/GOCART#204 · 1 assignee · Opened Dec 30, 2022
Add CoDAS functionality Open

GEOS-ESM/GOCART#203 · 1 assignee · Opened Dec 30, 2022
Update of EXTDATA.yaml files Open

GEOS-ESM/GOCART#197 · 1 assignee · Opened Nov 29, 2022
Moving GAAS to use ExtData fundamentally breaks GAAS until new features can be implemented in ExtData Open

GEOS-ESM/GOCART#196 · 1 assignee · Opened Nov 14, 2022
Implement self consistent radii across GOCART Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

GEOS-ESM/GOCART#194 · 2 comments · Opened Oct 20, 2022

GEOS-ESM/GOCART

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