Numerical Studies on the Onset of, and Controls on Fast Streaming Flow

该奖项是对一项数值模拟研究的支持，该研究旨在调查导致冰流开始和消亡的过程和机制。还将评估西南极冰流对气候变化和冰架边界扰动的稳定性。该项目包括开发一个冰流的二维地图视图模型。模型中包含的过程包括基面温度的计算、基面滑动、冰层下冰层的变形和冰架/冰流的相互作用。通过施加扰动和/或特殊的基本条件，并计算模式冰盖的时间演变，可以评估每种机制的重要性以及它们之间的相互作用。

This award is for support of a numerical modeling study to investigate processes and mechanisms that lead to the onset and demise of ice streams. The stability of the West Antarctic ice streams to changes in climate and perturbations at the ice shelf boundary will also be assessed. The project involves development of a two- dimensional map-view model of an ice stream. Processes to be incorporated into the model include calculation of basal temperatures, basal sliding, deformation of sub-glacial till, and the ice shelf/ice stream interaction. By imposing perturbations and/or special basal conditions, and computing the time evolution of the model ice sheet, the importance of each mechanism, as well as their mutual interactions, can be assessed.