Thermal controls on ice stream shear margins

• Published in: Journal of Glaciology
• Main Authors: Hunter, Pierce, Meyer, Colin, Minchew, Brent, Haseloff, Marianne, Rempel, Alan
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press 2021
• Subjects: F600 Geology; F700 Ocean Sciences; F800 Physical and Terrestrial Geographical and Environmental Sciences; Bindschadler Ice Stream; Antarc*; Antarctica; Ice Sheet; Journal of Glaciology
• Online Access: https://nrl.northumbria.ac.uk/id/eprint/45464/; https://doi.org/10.1017/jog.2020.118; https://nrl.northumbria.ac.uk/id/eprint/45464/9/thermal-controls-on-ice-stream-shear-margins.pdf; https://nrl.northumbria.ac.uk/id/eprint/45464/1/thermal-controls-on-ice-stream-shear-margins.pdf

Ice stream discharge responds to a balance between gravity, basal friction and lateral drag. Appreciable viscous heating occurs in shear margins between ice streams and adjacent slow-moving ice ridges, altering the temperature-dependent viscosity distribution that connects lateral drag to marginal s...