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@apcraig apcraig released this 08 Apr 03:07
CICE6.2.0
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CICE6.2.0 is a major update of CICE6.1.4 from December, 2020. It includes Icepack1.2.5. This release includes updates to the default model initial conditions, updates to the default JRA55 forcing, and an update gx1 ocean mixed layer forcing file. It also includes an update to the time manager and a tool to generate JRA55 forcing data offline. A probabilistic grounding scheme was also added to the landfast ice implementation. Several minor bug fixes were also included and the default emissivity value was changed to 0.985.

This implementation should generate the same climate as prior versions in coupled systems. However, the emissivity change should be noted in particular. In addition, there were changes to the time manager that could impact how models are coupled. In particular, the prognostic time manager variables are now myear, mmonth, mday, and msec and the timestep counter is diagnostic. These changes are documented in the user guide, https://cice-consortium-cice.readthedocs.io/en/cice6.2.0/user_guide/ug_implementation.html#time-manager-and-initialization.

The standalone model results are different from prior versions due to the new initial condition and forcing even though the climate is similar.

Major changes:

  • Update the Time Manager #566, #586
  • Add probabilistic grounding scheme for landfast ice #565 and update landice tests #586
  • Update the gx1 initial condition file based on the JRA55 spinup to Jan 1, 2005 and update the gx1prod namelist setup #586

Bug fixes:

  • Fix hmix minimum value #586
  • Fix halo fill for padded blocks, fix some uninitialized data #579
  • Fix reading of mixed layer ocean model dataset #578 and update gx1 SOM dataset #586
  • Use cell-centered ice velocity for high frequency wind stress calculation #576
  • Proper configuration of zsalinity parameterization #549
  • Remove unused private variable for OpenMP #561
  • Correct input slices and time interpolation of JRA forcing for multi-year runs #562

Enhancements:

  • Update 1D EVP kernel #561
  • Improve maxblocks internal computation and add some additional debugging checks as well as a namelist flag #587
  • Add JRA55 dataset generation tool and add documentation #582
  • Update Icepack to newer version #580, #590
  • Change landfast ice parameter value to published value #574
  • Adjust emissivity to 0.985, set default NBGCLYR=1 #553
  • Add test for zsalinity parameterization #548
  • Add automated Github Actions testing on Pull Requests and Pushes to master and releases #555, Update github Actions automated testing script #586
  • Update color labels in test reporting script #586
  • Update conda macos port #590
  • Port to Compy #581

Documentation

  • Add documentation for the JRA55 dataset generation tool #582
  • Update landfast ice documentation #574
  • Update readthedocs requirements for bibtex #545
  • Update copyright year #570 #571
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