[MITgcm-devel] seaice advection schemes

[Martin Losch]

Hi there,

I am trying to build a 2nd-order scheme for sea-ice time stepping, but I can't. I only get 1st order convergence, and I think the culprit is the advection of seaice (with seaice_advection). I am assuming that schemes like DST3 are 3rd order in space AND time, but I cannot show this experimentally (with constant uice in 1D channel I still only get 1st order convergence). 

Is my assumption about the order DST3 (and other scheme in seaice_advection) wrong?

Martin