The NCAR Community Climate System Model Version 2 - Sea Ice (CCSM2-SI)
is intended for use by the climate modeling community, and its
development has been a true community effort. The list of physics to
be included in CCSM2-SI was developed by the CCSM Polar Climate
Working Group (PCWG) in a series of meetings during 1997-1999. The
specific parameterizations and codes to be implemented were identified
and agreed upon at a meeting of ice model developers from the PCWG,
held at NCAR in September, 1999.
A brief description of the development of the CCSM2-SI code is as
o The code originated from the LANL CICE model (version of
September, 1999). CCSM2-SI retains the following elements from this
original code: Elastic-viscous-plastic dynamics (EVP), MPDATA
transport scheme, and much of the original code structure.
o Later in autumn of 1999, the code was changed as follows: (1) the
MPI parallelization routines were updated; (2) a multi-category ice
thickness distribution was added; (3) a new thermodynamic code
with explicit treatment of brine pockets was added.
o In late 1999/early 2000, changes were made to the history output.
o During winter-spring 2000, the Active Ice Only (AIO) framework was
developed, together with datasets to be used as forcing within
this framework. The model was tested within this AIO framework.
o In the fall of 2000, the code was streamlined, checked,
standardized, and updated to Fortran 90. Documentation is currently
The development team for the model described above is:
Elizabeth Hunke, LANL
Cecilia Bitz, U. WA.
Bruce Briegleb, NCAR
Tony Craig, NCAR
Marika Holland, NCAR
Bill Lipscomb, LANL
Julie Schramm, NCAR
Numerous others have contributed to this effort also-thanks to all!
use ice_timers use ice_mpi_internal use ice_albedo use ice_vthermo use ice_mechred use ice_scaling use ice_diagnostics use ice_history use ice_coupling use ice_grid use ice_calendar use ice_dyn_evp use ice_itd use ice_itd_linear use ice_transport use ice_therm_driver use ice_init use shr_msg_mod,only:shr_msg_chdir,shr_msg_dirio,shr_sys_flush use ice_prescribed use ice_ocean use ice_prnpntREVISION HISTORY:
February 2001 - E.Hunke (LANL) provided original May 2001 - Final form settled (M.Holland, J.Schramm and B.Briegleb, NCAR)