CICE-Consortium/Icepack: Icepack 1.3.4

Icepack version 1.3.4 is being released with CICE6.4.2. This is a minor release update from the Icepack1.3.3 release from December, 2022. This update includes several bug fixes including in snow physics, FSD lateral melt, and treatment of thin ice/snow enthalpy. It also includes improvements to the treatment of optional arguments in the public interfaces, capability for netcdf restart files, and other enhancements.

Bug fixes

• Correct thin ice/snow treatment of enthalpy and other tracers. #454. This changes answers in CICE (QC passes) but not Icepack
• Fix ice area inconsistency under convergence in single column mode #433. This changes answers in standalone Icepack but not in CICE.
• Fix bug in snow sublimation in icepack_therm_vertical #428. Fix bug in smicen and smliqn calculation in thermo_vertical #449. This changes answers for snwgrain configurations.
• Update the FSD lateral heat flux computation and fix bug in the welding scheme. #424 #435 This changes answers for FSD configurations.
• Fix bug in history file output related to FSD. #421. This does not change model results.
• Fix bug in start time for netCDF history output #426. This does not change model results.
• Update hsn_new(1) computation in snow_redist. This does not change model results.

Enhancements

• Update snow physics logic control #449
• Refactor implementation of optional arguments for isotopes, snwgrain, therm1 and therm2 as well as some optional outputs in Icepack public interfaces #423, #429. Update FSD arguments, convert them to optional #440. Clean up optional argument attributes and update optional argument documentation #443.
• Add icepack_chkoptargflag function #423, #434
• Add support for netCDF restart files, update history and restart format control #427
• Deprecate zsalinity #448
• Remove ridging iteration log output #445, #446
• Check allocation of snow aging tables better #428
• Clean up some intent statements, clean up public interface declarations #429
• Shift a few left-over print statements to use the icepack warning infrastructure #424
• Add support for netCDF with conda_linux #425
• Update icepack_write_parameters and add call in Icepack #436
• Update ports to Onyx, Derecho, Cheyenne, Chicoma #442, #449, #456

Documentation

• Update version, License, Copyright date #457
• Explicitly turn on pdf generation in readthedocs #438
• Updates needed for compatibility with changes in readthedocs #432
• Update documentation #427, #429, #433, #435, #437, #440, #443, #448, #457