Here are the models that I’m currently using:
NEMO (Nucleus for European Modelling of the Ocean), including the OPA ocean model and the LIM sea ice model.
Elmer/Ice, an open-source finite-element software for ice sheets, glaciers and ice flow modelling.
MAR, a regional atmospheric model including a fine representation of polar processes.
WRF, a regional atmospheric model with numerous available physical parameterizations.
Some of these models have been coupled: