The role of basal hydrology in the surging of the Laurentide Ice Sheet

• Published in: Climate of the Past
• Main Authors: Roberts, William H. G., Payne, Antony J., Valdes, Paul J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2016
• Subjects: article; Verlagsveröffentlichung; Hudson; Hudson Strait; Ice Sheet
• Online Access: https://doi.org/10.5194/cp-12-1601-2016; https://noa.gwlb.de/receive/cop_mods_00011731; https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011688/cp-12-1601-2016.pdf; https://cp.copernicus.org/articles/12/1601/2016/cp-12-1601-2016.pdf

We use the Glimmer ice sheet model to simulate periodic surges over the Laurentide Ice Sheet during the Last Glacial Maximum. In contrast to previous studies we use the depth of water at the base of the ice sheet as the switch for these surges. We find that the surges are supported within the model...