ESCOMP/CTSM

View on GitHub

Community Terrestrial Systems Model (includes the Community Land Model of CESM)

Stars: 352
Forks: 361
Open beginner issues: 0
Indexed issues: 953
Avg merge: 9d 19h
Merged PRs (30d): 8

Dominant language: Fortran
License: No license data
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Open All

944 open issues indexed

Calculations of local noon assume that longitude is 0 to 360 rather than -180 to 180 Open

bug

ESCOMP/CTSM#491 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
In ctsm python library: get more machine defaults from config_machines.xml Open

enhancement

ESCOMP/CTSM#494 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add more system tests covering water tracers/isotopes Open

testing

ESCOMP/CTSM#495 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improved seasonal-deciduous phenology trigger Open

enhancement science

ESCOMP/CTSM#499 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Get water isotope forcing fields from the coupler Open

enhancement

ESCOMP/CTSM#500 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Send water isotope forcing fields to the coupler Open

enhancement

ESCOMP/CTSM#501 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
CTSM input data-set tools can only work on 0-360 grids, and require monotone increasing longitude Open

enhancement

ESCOMP/CTSM#505 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Use correct ratios for water isotopes Open

enhancement

ESCOMP/CTSM#506 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Use correct tracer concentration for irrigation withdrawals from surface (river) water Open

enhancement

ESCOMP/CTSM#512 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Different levels of "active" for history fields Open

enhancement

ESCOMP/CTSM#528 · 14 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
negative C/N error Open

bug

ESCOMP/CTSM#532 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add single-point transient tests that test against expected subgrid areas Open

testing

ESCOMP/CTSM#542 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ignore_ic_* options to build-namelist and IC selecting process needs some love Open

code health

ESCOMP/CTSM#549 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Update I2000 initial condition files Open

enhancement priority: low

ESCOMP/CTSM#554 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Organize non-default options into for-testing physics options Open

testing

ESCOMP/CTSM#569 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Cleanup negative water handling in SoilWaterMovementMod Open

code health

ESCOMP/CTSM#574 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Add ability of mksurfdata_esmf to create datasets that can be used for Paleo work... Open

enhancement

ESCOMP/CTSM#578 · 25 comments · 0 reactions · 2 assignees · Indexed Sep 15, 2026
Move CLMBuildNamelist.pm perl code into the python buildnml Open

blocker code health size: large

ESCOMP/CTSM#585 · 23 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Try to improve performance of routines in subgridAveMod Open

enhancement performance

ESCOMP/CTSM#597 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remove config_cache.xml used by CLMBuildNamelist Open

code health

ESCOMP/CTSM#603 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
All cases use modern atmospheric CH4 even for pre-industrial or transient cases Open

bug science

ESCOMP/CTSM#604 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Move settings from use_cases to namelist_defaults Open

code health usability

ESCOMP/CTSM#605 · 9 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Single-point mode incompatible with parallel I/O Netcdf? Suggestion to update documentation. Open

docs-loc:users-guide docs:update documentation

ESCOMP/CTSM#614 · 6 comments · 1 reaction · 1 assignee · Indexed Sep 15, 2026
Document what we want covered in system tests Open

testing

ESCOMP/CTSM#615 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
check ozone stress and fates compatibility Open

enhancement

ESCOMP/CTSM#618 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Assess potential speedups from vectorization Open

investigation performance

ESCOMP/CTSM#627 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Reduce disk space on surface datasets by using the urban lookup table Open

enhancement

ESCOMP/CTSM#633 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Bring FAN into CTSM Open

enhancement science

ESCOMP/CTSM#636 · 14 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Methane sinks Open

enhancement priority: low science

ESCOMP/CTSM#638 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Should `hpindex` be saved and read from `*.rh*` files? Open

bug

ESCOMP/CTSM#647 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Methane should not depend on gridcell-level TWS Open

blocker bug science

ESCOMP/CTSM#658 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Subtract dynbal baselines from begwb and endwb Open

blocked: dependency enhancement

ESCOMP/CTSM#659 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
hk_l used before properly initialized Open

bug priority: low

ESCOMP/CTSM#662 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Try to speed up SurfaceAlbedo Open

enhancement performance

ESCOMP/CTSM#688 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Implement water tracers for CalculateSurfaceHumidity Open

enhancement

ESCOMP/CTSM#721 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Implement water tracers for BareGroundFluxes Open

enhancement

ESCOMP/CTSM#722 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Implement water tracers for CanopyFluxes Open

enhancement

ESCOMP/CTSM#723 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Implement water tracers for UrbanFluxes Open

enhancement

ESCOMP/CTSM#724 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Implement water tracers for LakeFluxes Open

enhancement

ESCOMP/CTSM#725 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Try to speed up interpMonthlyVeg Open

enhancement performance priority: low

ESCOMP/CTSM#731 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
CLM vector-format history files and restart files pfts1d_wt varnames Open

enhancement

ESCOMP/CTSM#732 · 7 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Thawed wetlands should result in a complete removal of the snow pack Open

bug priority: low science

ESCOMP/CTSM#735 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Have run_sys_tests die or give a warning if .gitmodules aren't clean Open

testing

ESCOMP/CTSM#743 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Urban snow should use the same albedo calculation as snow everywhere else Open

enhancement priority: low

ESCOMP/CTSM#744 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
It seems like int_snow will be inconsistent when interpolating from initial conditions with different snow layers Open

bug

ESCOMP/CTSM#748 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Water tracers: Make sure calls to ResetCheckedTracers are removed Open

enhancement

ESCOMP/CTSM#762 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Floating point exception in PHS's plc function Open

bug

ESCOMP/CTSM#774 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Water tracers: Review placement of calls to TracerConsistencyCheck Open

code health

ESCOMP/CTSM#779 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Determination of htvp looks wrong Open

bug science

ESCOMP/CTSM#793 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Make qg (surface humidity) calculation consistent across landunits Open

enhancement

ESCOMP/CTSM#818 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026

ESCOMP/CTSM

Get new issues in your inbox