Issues

• GLOMAP-mode: two crashes on debug and error paths (msec_org = 0 subscript in ukca_aero_step; message overflow in ukca_volume_mode)

  MetOffice/ukca#58 · Filter by author aliakherati opened on Oct 15, 2026

• GLOMAP-mode: sea-salt water uptake uses the NH4Cl coefficients (Na and NH4 cation slots swapped)

  MetOffice/ukca#57 · Filter by author aliakherati opened on Oct 15, 2026

• GLOMAP-mode: icondiam = 2 condensation radius uses aa² where Lehtinen et al. (2003) give aa

  MetOffice/ukca#56 · Filter by author aliakherati opened on Oct 15, 2026

• GLOMAP-mode: icoag, ifuchs and idcmfp are never range-checked, and icoag = 4 uses unset arrays

  MetOffice/ukca#55 · Filter by author aliakherati opened on Oct 15, 2026

• GLOMAP-mode: factor of 3 in the dN/dt = A·N² solution in ukca_solvecoagnucl_v

  MetOffice/ukca#54 · Filter by author aliakherati opened on Oct 15, 2026

• Some photolysis code still using missing_data_mod, rather than ukca_missing_data_mod

  MetOffice/ukca#52 · Filter by author RobWatersMet opened on Oct 8, 2026
  

• Negative concentrations causing problems for NUAQ

  Bug

  MetOffice/ukca#51 · Filter by author alanjhewitt opened on Sep 30, 2026 · Spring 2027
  3

  

• We need to revisit RADAER for GPU hardware

  enhancementLinked UM
  MetOffice/ukca#50 · Filter by author alanjhewitt opened on Sep 29, 2026
  

• Retire temporary logical l_fix_improve_drydep

  MetOffice/ukca#46 · Filter by author angelamynard opened on Aug 27, 2026

• Predict timesteps for ASAD in advance

  MetOffice/ukca#20 · Filter by author joewallwork opened on Jan 23, 2026

• Is it worth making better use of compressed Jacobian format?

  MetOffice/ukca#19 · Filter by author joewallwork opened on Jan 23, 2026

• Further ASAD refactoring

  MetOffice/ukca#17 · Filter by author joewallwork opened on Jan 23, 2026

• Purge Fortran keywords as variable.

  MetOffice/ukca#15 · Filter by author jennyhickson opened on Jan 16, 2026

• Add PM diagnostics to the new UKCA Diagnostics Handling system.

  enhancementLinked UM
  MetOffice/ukca#14 · Filter by author mo-pmol opened on Jan 9, 2026
  2