Discretization of Sea Ice Dynamics in the Tangent Plane to the Sphere by a CD‐Grid‐Type Finite Element

Abstract We present a new discretization of sea ice dynamics on the sphere. The approach describes motion in tangent planes to On each triangle mesh, are discretized local coordinate system using CD‐grid‐like non‐conforming finite element method. development allows straightforward coupling C‐grid like ocean model Icosahedral Non‐hydrostatic‐Ocean model, which uses same infrastructure as module. Using series test examples, we demonstrate that provides stable realization large‐scale A comparison with observation shows can simulate typical drift patterns numerical dynamics.