CICE-Consortium/CICE: CICE Version 6.3.1

• 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, Andrew Roberts, Worthen, Denise
• Format: Software
• Language: English
• Published: 2022
• Subjects: sea ice model; CICE; Icepack; narwhal*; Sea ice
• Online Access: https://zenodo.org/record/6314188; https://doi.org/10.5281/zenodo.6314188

CICE6.3.1 is a minor update of CICE6.3.0 from September, 2021. It is released with Icepack1.3.1. This update includes several minor changes including a bug fix that led to errors in multi-processor runs with advection="none". This version also updates a few aspects of the dynamics implementation, upgrades the OpenMP performance, updates the atmbndy options associated with a change in Icepack1.3.1, and updates several other technical features. Major Changes None Bug fixes Fix multi-pe advection bug setting, advection=none was not working on multiple pes. #664 Enhancements Implementation of plastic potential for VP and EVP. #649 Refactor EVP and VP, express rheology term as a function of viscous coefficients, update documentation #639, #647. Note: This changes answers at roundoff level. Update calls to seabed stress to improve efficiency #673 Deprecate gx1 CORE forcing option #643 Update OpenMP implementation to debug and improve performance. #680, #693. Note: May require setting "setenv OMP_STACKSIZE 64M" or similar in machine env file Update PIO fill value on restart #675 Update namelist reading to allow namelist groups to be read in any order #671, #677 Update Makefile to improve dependency logic #667 Update Icepack #658 #691 Note: changes results when formdrag is applied and fbot_xfer_type == 'Cdn_ocn' Update testing scripts #644, #658, #665, #664, #678 Update NUOPC/CMEPS coupling interface to add new snow features and more #668, #670 Update DMI coupling interface to add new snow features #641 Refactor/reduce calls to calc_ffrac in eap solver #638 Update atmbndy input to support similarity (aka default), constant, and mixed options, update documentation #633. Zero out eap variables on land consistently #632 Update history implementation allocation checks #631 Port to Narwhal #678 Documentation Update version and copyright date #691 Update documentation #644, #652, #657 Update README.md to reflect change of default branch name from master to main in Github repository.