Published February 13, 2018
| Version Icepack1.0.0
Software
Open
CICE-Consortium/Icepack version 1.0.0
Creators
- 1. Los Alamos National Laboratory
- 2. Naval Research Laboratory Stennis Space Center
- 3. National Center for Atmospheric Research
- 4. National Oceanic and Atmospheric Administration (CTR)
- 5. Geophysical Fluid Dynamics Laboratory
- 6. Environment and Climate Change Canada
- 7. Naval Postgraduate School
Description
The CICE Consortium’s new sea ice column physics code includes all physical parameterizations from the CICE sea ice model that are limited to single grid-cell columns or Lagrangian elements, independent of the grid and other sea ice model infrastructure. Many aspects of the physics and biogeochemistry that were previously embedded in CICE version 5 now reside within Icepack, and new features have also been added. In addition to the column physics modules from CICE, this software package includes a stand-alone driver and automated testing using a comprehensive test suite.
Enhancements:
- Full vertical biogeochemistry code, including particulate iron, humic material, modal aerosols, proteins, stationary and mobile phases
- Biogeochemical feedback on sea ice physics through the shortwave formulation
- Optional inclusion of ice velocity in the calculation of wind stress
- Multiple options for column forcing, including CFS model output, Arctic and Antarctic physical and biogeochemical measurements, and an Arctic climatology
- A warning package that captures diagnostic and error information from within the column physics, for printing by the driver
- A comprehensive test suite of various configuration options for full code coverage
- Automated testing using Travis CI
- Automated test reporting organized by hash, version, machine and branch, for both the primary Consortium repository and user forks
- Online documentation
- A flexible, extensible, robust interface between the column physics modules and the driver
Bug fixes:
- limit exponential arguments to avoid underflows in shortwave, mechanical redistribution, brine height (PR #127 #132 #158 #169)
- Use vvel instead of uvel for y-component of atmosphere-ice stress with high-frequency option (PR #142)
- Use net shortwave sum instead of cosine of the zenith angle to limit shortwave calculation for low-/no-light conditions
- Correct roundoff errors in the delta-Eddington shortwave calculation
- Define interface temperature in the brine height parameterization
- Provide flexibility for tracking frazil ice salt/water in the ice or ocean model component
- When ponds are very thin, ignore them in the radiation calculation
- Ensure fractions of snow, ponds and bare ice sum to 1
- Wrap pond tracers in conditional blocks in mushy thermodynamics and form drag parameterization
- Miscellaneous bug fixes for biogeochemistry and brine height tracer (hbrine)
Files
Icepack-Icepack1.0.0.zip
Files
(2.3 MB)
Name | Size | Download all |
---|---|---|
md5:f8bb6c6f44b6683969e02a0fe35ace53
|
2.3 MB | Preview Download |