CICE Recent Changes

Important changes to the code on the master branch since the last numbered release

Date of last update: 15 Nov 2024

By: T. Craig

Last numbered release: CICE 6.5.1 (May 20, 2024)

Major Changes

• Update BGC and Icepack interfaces #968

Bug fixes

• Update the floe size distribution implementation and interfaces per changes in icepack #975 Changes answers for all results
• Fix icepack_aggregate arguments in ice_precribed_mod.F90 #980
• Confirm backward compatibility for PIO reads on non-parallel files #966
• Add PIO finalize calls to improve PIO cleanup. Avoids an abort due to too many MPI communicators when writing lots of files. Add a new test to write hourly files for a 1 year test run. #964
• pio_errorhandling call was in the wrong location #973

Enhancements

• Update to Icepack1.5.0 TBD
• Access alternative congelation ice formulation in icepack #965
• Update CICE plotting tools #958
• Change shr_file to shr_log #960
• Enable prescribed ice for UFS #964
• NUOPC/CMEPS driver
  • Write restart at end of run via NUOPC component attribute & Initialize cpl_scalar field when created for UFS #995
  • Reduce prints in shr_orbital #981
  • Check for REST_OPTION = 'end' and whether stop_ymd is the same interval as the restarts; fix pointer file names when multiple instances are turned on. #990
  • Allow the driver to set msec #991
• Grid
  • Allow kmt variable to be named "mask" #985
  • Allow a single processor to read netcdf variables that are not of size nx_global by ny_global #985
  • Split reading the mask and grid into separate subroutines #985
  • Deprecate the ORCA grid #986
• Machine port #974, Update izumi_nag port #958

Documentation

• Update version number to CICE6.6.0. TBD
• Update bgc namelist options. #968
• Update grid documentation. #985
• Update timeseries plotting documentation. #958

Important NOTES

Describe BGC changes to interface etc in more detail

Include Jim Edwards as author