CICE-Consortium/CICE: CICE Version 6.4.2

• Main Authors: Elizabeth Hunke, Richard Allard, David A. Bailey, Philippe Blain, Anthony Craig, Frederic Dupont, Alice DuVivier, Robert Grumbine, David Hebert, Marika Holland, Nicole Jeffery, Jean-Francois Lemieux, Robert Osinski, Till Rasmussen, Mads Ribergaard, Lettie Roach, Andrew Roberts, Matthew Turner, Michael Winton, Denise Worthen
• Format: Software
• Language: English
• Published: 2023
• Subjects: sea ice model; CICE; Icepack; Sea ice
• Online Access: https://zenodo.org/record/8336087; https://doi.org/10.5281/zenodo.8336087

CICE6.4.2 updates CICE6.4.1 from December, 2022 and includes Icepack1.3.4. This release has several minor bug fixes including to computation of thin ice/snow enthalpy snow physics, FSD lateral melt, and the VP solver. It corrects some errors in halo and global sum infrastructure and extends unit testing of both features. It adds an option for use of JRA55do forcing and deprecates the COREII LYq forcing. Several history and restart output features were added including the ability to have multiple restart frequencies and to set history averaging separately for each history stream. Bug fixes Fix thin ice/snow enthalpy computation in Icepack #857 Changes answers in CICE Update snow physics implementation in Icepack #852 Changes answers for snow physics Update l_fixed_area option in horizontal remapping used for C grid simulations. #833. Changes answers for C grid Fix rare instability in probabilistic seabed stress, should not change answers. #810 Add haloUpdate unit test and fix some errors in the haloUpdate code, Changes answers in tripole cases using serial (no MPI) infrastructure #820 Update VP solver to improve performance and fix bug in workspace_y calculation, Changes answers in VP solver #824 Fix bug in tripoleT global sum calculation, Changes answers in tripoleT configurations #824 Enhancements Extend restart output controls, provide multiple frequency options #850 Deprecate zsalinity feature #851 Deprecate COREII LYq forcing #841 Add support for JRA55do as new forcing option #843 Add namelist option to specify time axis position in history files #839 Add time_period_freq attribute to history file variables #816 Update filename and time information on CICE initial condition history file #818 Update global reduction implementation to improve performance, expand sumchk unit test #824 Add opticep unit test to test CICE calls to Icepack without optional arguments. Update optargs unit tests #846 Add functionality to set hist_avg for each stream #827 Add method to check namelist inputs more robustly, #801 Update ...