Sea-ice drift momentum balance ($m(D_{t}v+f\hat{z}\times v)={\tau }_a+{\tau }_w+\nabla \cdot \Sigma -mg\nabla \eta$)

The horizontal sea-ice drift momentum balance per unit area includes air and water drag forces, the Coriolis force, depth-integrated internal ice stress and the sea-surface pressure gradient. Here $m$ is ice-plus-snow mass per area and $\Sigma$ is a depth-integrated stress tensor.

// Target: geophysics.bigb