Issues

• WW3 hangs on Chrysalis

  Wave
  E3SM-Project/E3SM#8951 · Filter by author erinethomas opened on Oct 22, 2026
  

• EAMxx MAM4: layer heights computed from dry qv (and from dry mass in MAM optics)

  E3SM-Project/E3SM#8939 · Filter by author mt5555 opened on Oct 21, 2026
  1

  

• WW3 output on native wave mesh

  Wave
  E3SM-Project/E3SM#8929 · Filter by author erinethomas opened on Oct 20, 2026
  

• Frazil coupling Fioo_frazil does not follow the CPL convention

  Coupled ModelCouplerMPAS-ocean
  E3SM-Project/E3SM#8928 · Filter by author alicebarthel opened on Oct 20, 2026
  

• WW3 Constants

  Wave
  E3SM-Project/E3SM#8909 · Filter by author erinethomas opened on Oct 19, 2026
  

• WW3 calendar does not match E3SM calendar

  Wave
  E3SM-Project/E3SM#8908 · Filter by author erinethomas opened on Oct 19, 2026
  1

  

• Review solar geometry and calendar consistency in S2D incoming-radiation calculations

  Coupled ModelEAMxxRadiation
  Task

  E3SM-Project/E3SM#8904 · Filter by author proteanplanet opened on Oct 19, 2026
  7

  

• Floe size distribution tracer is missing its package

  MPAS-seaice
  E3SM-Project/E3SM#8903 · Filter by author akturner opened on Oct 19, 2026
  

• Potential Unit Inconsistency in the P3 Liquid–Vapor Phase-Change Diagnostic

  EAMxx
  E3SM-Project/E3SM#8902 · Filter by author yunpengshan2014 opened on Oct 19, 2026
  

• Create a single, parameterized emulator stand-in for CMP_comp_mct.F90 to interface with coupler.

  AI and emulatorsCoupler
  E3SM-Project/E3SM#8890 · Filter by author jeff-cohere opened on Oct 16, 2026
  

• EKAT's -O3 optimization overrides machine defaults

  CMake build systemEAMxxEKAT
  E3SM-Project/E3SM#8885 · Filter by author amametjanov opened on Oct 15, 2026
  1

  

• Refactor EAMxx physics configuration to use compsets instead of grid resolution

  compsetEAMxx
  E3SM-Project/E3SM#8875 · Filter by author brhillman opened on Oct 14, 2026

• MPAS-Ocean fails to compile with CCE 21: EXIT under !$omp do collapse(2) in mpas_ocn_time_average_coupled.F

  bugMPAS-Ocean standalone
  E3SM-Project/E3SM#8874 · Filter by author xylar opened on Oct 14, 2026
  

• Standalone MPAS-Ocean build fails with CMake 4: GOTM's cmake_minimum_required(VERSION 2.8) is rejected

  bugMPAS-Ocean standalone
  E3SM-Project/E3SM#8873 · Filter by author xylar opened on Oct 14, 2026
  2

  

• Rain frac fix is disabled by default

  E3SM-Project/E3SM#8868 · Filter by author brhillman opened on Oct 13, 2026
  1

• lnd2glc vertical interpolation: d_elev <= 0 conflates benign ties with a broken monotonicity assumption

  E3SM-Project/E3SM#8846 · Filter by author rljacob opened on Oct 9, 2026
  

• EAMxx: check-input crashes with AttributeError when the inputdata server is unreachable

  EAMxxinputdataScripts
  E3SM-Project/E3SM#8836 · Filter by author mahf708 opened on Oct 8, 2026

• EAMxx: spa standalone test downloads the ne4 SPA file but reads the ne2 one

  EAMxxinputdataTesting
  E3SM-Project/E3SM#8835 · Filter by author mahf708 opened on Oct 8, 2026
  1

  

• carbon_only = .false. overrides suplnitro = 'ALL' & suplphos = 'ALL' after nyears_ad_carbon_only

  E3SM-Project/E3SM#8834 · Filter by author jingtao-lbl opened on Oct 8, 2026
  1

• column pbalance error with ERS.f19_g16.I1850CNECACTCBC.pm-cpu_nvidia.elm-eca

  nvidia
  E3SM-Project/E3SM#8832 · Filter by author ndkeen opened on Oct 7, 2026
  2

• Floating-point exception with FATES cases using GNU compiler in DEBUG

  FATESGNU
  E3SM-Project/E3SM#8831 · Filter by author ndkeen opened on Oct 7, 2026
  1

• Reduce size of ELM restart file

  ELM
  Feature

  E3SM-Project/E3SM#8816 · Filter by author bishtgautam opened on Oct 3, 2026
  2

  

• Add cross-machine climate reproducibility check (MVK) using chrysalis as reference

  BFBCriticalTesting
  Feature

  E3SM-Project/E3SM#8812 · Filter by author chengzhuzhang opened on Oct 1, 2026
  10

  

• Unclosed file units in giac (cpl_indices and iac_init)

  GCAM
  E3SM-Project/E3SM#8811 · Filter by author ndkeen opened on Oct 1, 2026
  12

  

• EAMxx: make field initialization best-effort and let AtmProcDAG validate that all inputs are initialized

  EAMxx
  E3SM-Project/E3SM#8808 · Filter by author bartgol opened on Oct 1, 2026