Stress Redistribution Explains Anti-correlated Subglacial Pressure Variations

• Published in: Frontiers in Earth Science
• Main Authors: Pierre-Marie Lefeuvre, Thomas Zwinger, Miriam Jackson, Olivier Gagliardini, Gaute Lappegard, Jon Ove Hagen
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media S.A. 2018
• Subjects: subglacial processes; glacier hydrology; glacier mechanics; glacier modelling; Svartisen Subglacial Laboratory; Engabreen; Science; Q; Norway; Svartisen; glacier; Northern Norway
• Online Access: https://doi.org/10.3389/feart.2017.00110; https://doaj.org/article/31b869e40e274d8fbd3df5cda6f36e93

We used a finite element model to interpret anti-correlated pressure variations at the base of a glacier to demonstrate the importance of stress redistribution in the basal ice. We first investigated two pairs of load cells installed 20 m apart at the base of the 210 m thick Engabreen glacier in Nor...