IDyRA aims at improving our knowledge of the interaction between the ice sheet and the ice shelf (Antarctic grounding zones). It
specifically aims at understanding the processes of subglacial melting and basal sliding by combining englacial information
obtained from radio-echo sounding surveys withstate-of-the-art higher-order ice sheet models. This way, numerical ice-sheet models can be
validated by reconstructing the internal layer architecture.Grounding lines are key areas in ice sheets and at present subject to
much attention. IDyRA will improve the understanding of grounding line migration, ocean interaction, and the role of buttressing
in east Dronning Maud Land, Antarctica, where the marine ice sheet is buttressed by numerous ice rises. Results of the project
will contribute to a quantitative interpretation ofmelting under the ice shelf, its effect on ice sheet behavior and the effectof a
thermohaline circulation under the ice shelf.