A probabilistic seabed–ice keel interaction model

Abstract. Landfast ice is a common coastal feature in the Arctic Ocean and around Antarctic continent. One contributing stabilizing mechanism grounding of sea ridges shallow water. Recently, scheme representing this effect on dynamics was developed order to improve simulation landfast by continuum-based models. This parameterization assumes that ridged keel thickness proportional mean thickness. Results demonstrated simple notably improves many regions such as East Siberian Sea, Laptev Sea along Alaskan coast. Nevertheless, weakness approach it based solely properties ice. Here, we extend taking into account subgrid-scale distribution bathymetry distribution, which are generally non-normal, computing maximum seabed stress joint probability interaction between seabed. The probabilistic shows reasonably good agreement with observations previously proposed while potentially offering more physical insights formation