Equilibrium sea-ice thickness for the three topographies. The panels show the Baseline (left), Steep Uplift (center), and Plateau (right) cases. Topographic control of the circulation strongly modulates volatile sequestration. The Steep Uplift case lead to an open nightside ocean, while the Plateau tends to reduced nightside ice and patchy thin ice encompassing the antistellar point. . The maximum sea ice is set at 9 m in the model.