Issues

• Remove for_testing_allow_non_annual_changes from user_nl_clm

  ESCOMP/CAM#1737 · Filter by author billsacks opened on Oct 23, 2026

• Replace remaining POP grids with MOM grids

  after CESM3_0enhancement
  ESCOMP/CAM#1735 · Filter by author peverwhee opened on Oct 20, 2026

• Bring in upcoming PUMAS bug fixes (ESCOMP/PUMAS#81); answer-changing for CAM7 defaults

  bugMust have CESM3
  ESCOMP/CAM#1732 · Filter by author brianpm opened on Oct 19, 2026
  

• MPAS dycore timer resets for restart runs

  bug
  ESCOMP/CAM#1721 · Filter by author adamrher opened on Oct 14, 2026
  1

  

• CLUBB_MF restart bug for convective memory arrays w/ *_ndt > 1

  after CESM3_0bug
  ESCOMP/CAM#1720 · Filter by author adamrher opened on Oct 14, 2026
  

• gravity wave default tuning settings

  bugMust have CESM3
  ESCOMP/CAM#1707 · Filter by author PeterHjortLauritzen opened on Oct 6, 2026
  9

  

• build-namelist hangs (infinite loop) on #-commented line in user_nl_cam

  bugmisc tagMust have CESM3
  ESCOMP/CAM#1701 · Filter by author jtruesdal opened on Oct 2, 2026
  2

  

• Default non-LTE in WACCM7

  after CESM3_0
  ESCOMP/CAM#1699 · Filter by author fvitt opened on Oct 1, 2026
  

• Minimize space from 200+ clubb_mf variables that are unused when its not chosen as the deep scheme.

  ESCOMP/CAM#1697 · Filter by author jtruesdal opened on Sep 30, 2026
  

• Consolidate use of the roots solver which is duplicated in clubb_mf and uwshcu.F90

  ESCOMP/CAM#1696 · Filter by author jtruesdal opened on Sep 30, 2026

• Misc SCAM bug fixes and feature enhancements

  bugMust have CESM3
  ESCOMP/CAM#1691 · Filter by author jtruesdal opened on Sep 29, 2026
  

• Update Joule heating and electron heating rates in WACCM and WACCM-X

  enhancement
  ESCOMP/CAM#1687 · Filter by author fvitt opened on Sep 28, 2026
  

• CAM not getting the correct use case with a long name comspet

  ESCOMP/CAM#1685 · Filter by author cecilehannay opened on Sep 25, 2026
  5

• Import state nuopc state_diagnose call is not under dbug_flag > 1, causing ESMF logfile flood

  after CESM3_0bugmisc tag
  ESCOMP/CAM#1667 · Filter by author jimmielin opened on Aug 31, 2026
  

• Fix fields indentified with TR8_enhanced in the atmos_phys repo

  after CESM3_0bug
  ESCOMP/CAM#1662 · Filter by author cacraigucar opened on Aug 26, 2026
  

• WACCM-X coupling with MAGE

  enhancement
  ESCOMP/CAM#1647 · Filter by author fvitt opened on Aug 14, 2026
  

• FLBC overwrite of CO2 field

  bug
  ESCOMP/CAM#1645 · Filter by author gold2718 opened on Aug 11, 2026
  6

  

• Out of memory issue in CAM at ne1024 resolution

  enhancement
  ESCOMP/CAM#1640 · Filter by author sjsprecious opened on Aug 10, 2026
  

• Update chemistry reaction rate constants

  enhancement
  ESCOMP/CAM#1633 · Filter by author fvitt opened on Jul 23, 2026

• Integer overflow of 32-bit NetCDF dimension products → undersized allocation → heap out-of-bounds write in sat_hist.F90 and tools/mkatmsrffile

  after CESM3_0misc tag
  ESCOMP/CAM#1620 · Filter by author Champollion9012 opened on Jul 16, 2026
  2

• Update compsets to using CLM60

  after CESM3_0
  ESCOMP/CAM#1616 · Filter by author cacraigucar opened on Jul 14, 2026
  3

  

• rad_aer_diag_init, rad_cnst_out only called for climate list: mass per layer/column burden missing for diagnostic list species

  bug
  ESCOMP/CAM#1578 · Filter by author jimmielin opened on Jun 11, 2026
  1

• Expand inline global total energy diagnostics to physics parameterizations

  enhancementMust have CESM3
  ESCOMP/CAM#1552 · Filter by author PeterHjortLauritzen opened on May 12, 2026
  

• CAM could sparse-checkout shared aerosol infrastructure files from CAM-SIMA (or MIAM)

  ESCOMP/CAM#1531 · Filter by author jimmielin opened on Apr 12, 2026
  

• dust_emis_fact needs separate values for F and B cases

  ESCOMP/CAM#1516 · Filter by author dmleung opened on Mar 24, 2026
  5