By the way, void IBIceModel::massContExplicitStep() was designed to override an IceModel method (in PISM) that no longer exists. I refactored the mass transport code and (sadly) had to break this in the process. :-( Let's talk about this later!

_Originally posted by @ckhroulev in https://github.com/NASA-GISS/landice/issues/31#issuecomment-1585248842_u