100, rue des maths 38610 Gières / GPS : 45.193055, 5.772076 / Directeur : Louis Funar

Florent Gimbert

Glacier flow: why is it important, and how could percolation analyses be relevant?
Mardi, 26 Mars, 2024 - 14:00 à 15:00
Résumé : 

Understanding the processes that govern the flow of glaciers is vital for predicting their response to climate change. The faster a glacier flows, the greater the amount of ice transported downstream, where it either melts or is lost to the ocean. A major unknown is the sliding of glaciers on their underlying bedrock, and in particular the presence of water at this interface, which modifies the friction properties.
In this seminar, I will first present some fairly generic aspects of glacier flow. Secondly, I will present recent works we have done on the physics of glacial basal friction, and in particular the role of hydrology. Thirdly, I will attempt to explain how percolation/phase transition analyses could be relevant to a better understanding of the phenomena involved.


Institution de l'orateur : 
IGE (Institut des Géosciences de l’Environnement), UGA
Thème de recherche : 
Salle : 
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