CICE version 5.0

New Features in CICE 5.0

physics

• A method for prognosing sea ice salinity, including improved snow-ice formation
• Two new explicit melt pond parameterizations (topo and level-ice)
• Sea ice biogeochemistry
• Elastic-Anisotropic-Plastic rheology
• Improved parameterization of form drag
• The "revised EVP" under-damping approach
• Gracefully handles the case when an internal layer melts completely

infrastructure

• Ice and snow enthalpy defined as tracers
• Gregorian calendar with leap years
• Reduced memory and floating-point operations for tracer calculations
• Restarts in binary, netCDF or PIO formats
• CPP options for categories, layers and tracers
• Read/write variables on the extended grid, including ghost (halo) cells

efficiency

• Parallelism option via OpenMP threads
• Improved parallel efficiency through halo masks and new block distributions
• Parallel I/O option via the PIO library

miscellaneous

• New history variables for melt ponds, ridging diagnostics, biogeochemistry and more
• Corrected bugs, particularly for nonstandard configurations.