Modelling the response of ice to subglacial flooding

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• Sophie Tobin, DAMTP
• Monday 30 January 2023, 13:00-14:00
• MR5, CMS.

If you have a question about this talk, please contact Prof. John R. Taylor.

Subglacial flooding, typically caused when lake drainage releases large volumes of water beneath a glacier, can have a significant impact on the dynamics of the overlying ice. Existing drainage systems are completely overwhelmed and the ice must deform to accommodate the water. I will discuss a simple elastic sheet model for ice which, when combined with variation in basal topography or overlying ice thickness, allows for rapid transport of large volumes of water beneath the ice. I will then discuss how this model can be combined with commonly used models for the viscous flow of ice in order to understand how subglacial flooding impacts the flow of the overlying glacier.

This talk is part of the Geophysical and Environmental Processes series.

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