Mechanics of Ice Stream Margins

该奖项支持一个项目，以开发一个耦合热 冰流边缘的力学模型 西南极冰盖（WAIS） 该模型 将提供一个理论框架， 冰流速度和冰温测量 根据基底滑动行为的变化， 冰流定律穿越边缘 这项工作将使 调查对下列人员的职位可能实行的管制： 冰流边缘，特别强调 冻结床和湿床之间边界的稳定性。 由于冰流的宽度会影响 内陆冰通过冰流进入海洋， 对冰流边缘的了解是 了解西南极冰的质量平衡 表，它在未来可能会如何变化，以及它的影响 可能对全球海平面产生的影响。

This award supports a project to develop a coupled thermo mechanical model for margins of ice streams of the type draining the West Antarctic Ice Sheet (WAIS). This model will provide a theoretical framework for interpreting measurements of velocity and ice temperature in ice stream margins in terms of changes in basal sliding behavior and ice flow law across the margin. This work will allow the investigation of the possible controls on the positions of ice stream margins, with particular emphasis on the stability of a boundary between a frozen and a wet bed. Since the width of ice streams affects the discharge of inland ice through the ice streams into the ocean, an understanding of ice stream margins is fundamental to understanding the mass balance of the West Antarctic Ice Sheet, how it might change in the future, and what impact it could have on global sea level.