Скачать или смотреть Sub-ice geology and east Antarctic Ice Sheet EAIS stability

Sub-ice geology and east Antarctic Ice Sheet (EAIS) stability
Convenors: Stewart Jamieson, Mathieu Morlighem, Emma Mackie, Mayuri Pandey

The stability of the East Antarctic Ice Sheet (EAIS) has significant implications for potential changes in sea level, both in the past and in the future. However, there are considerable challenges to quantifying changes that have occurred, or that will occur. This session aims to explore how our understanding of the subglacial geological boundary conditions (e.g. topography, lithology, earth structure, slip conditions etc.) can be used to assess the stability of the EAIS. Over the last decades, extensive datasets have been collected relating to the subglacial topography, geological structure and lithology of East Antarctica through a combination of geophysical surveying, offshore provenance studies, and direct access drilling. Numerical ice sheet models interact with the geological boundary conditions through a combination of sliding law and basal friction parameterizations. This session aims to examine model and data limitations that hinder the linking of geological conditions with ice sheet model simulations, and to identify ways to better connect models and subglacial geological data. We encourage contributions that use any data or model approach to explore subglacial geological conditions and consider EAIS stability.

Parallel session held at the 10th SCAR Open Science Conference (1-10 August 2022).