Systematic investigation of the role of bed topographyin the marine ice-sheet instability

系统研究海床地形在海洋冰盖不稳定中的作用

• 批准号: 275531626
• 负责人: Professor Dr. Anders Levermann
• 金额: --
• 依托单位: Potsdam-Institut für Klimafolgenforschung (PIK)
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/275531626?language=en
• 关键词: Systematic; investigation; role; bed; topographyin

The marine ice sheet instability is particularly important for the Antarctic contribution to future sea-level rise. Past investigations of this instability have focussed on the buttressing role of the ice shelves downstream of the ice sheet. It is however likely that the bed topography on which the ice sheet rests has a fundamental role for the evolution of the ice sheet. Here we investigate this role systematically with the Parallel Ice Sheet Model.

海洋冰盖的不稳定对于南极对未来海平面上升的贡献尤为重要。过去对这种不稳定性的研究主要集中在冰盖下游冰架的支撑作用上。然而，冰盖所在的河床地形很可能对冰盖的演化起着根本性的作用。在这里，我们使用平行冰盖模型系统地研究了这一作用。