An Embedded Ice Sheet Model

该奖项支持开发嵌入式冰盖模式，其中冰盖的一部分(中尺度)以较高的分辨率模拟，但由整个冰盖(全球尺度)的较低分辨率模式的输出驱动。除了提供更高分辨率的结果外，它还将能够更好地捕捉小规模但动态重要的系统的行为，如冰流。新的嵌入式模型还可能包含更完整的物理(如纵向应力)。该项目将使缅因州大学冰盖模型(UMISM)这一科学工具得以继续开发和应用。这一工具有助于更好地了解冰盖和控制冰盖系统中尺度特征的过程，如冰流。开发真正可预测的模型的关键是在冰盖的较大尺度物理和对冰盖系统的动态行为施加如此重要控制的较小尺度过程之间架起桥梁。这项工作的结果将在各次会议上传播，并在适当的技术期刊上发表。

This award supports the development of an embedded ice sheet model, one where a section of the ice sheet (at a mesoscale) is modeled at higher resolution, but is driven by output from a lower-resolution model of the entire ice sheet (at a global scale). In addition to giving higherresolution results, it will be better able to capture the behavior of small-scale, but dynamically important, systems such as ice streams. It will also be possible with the new embedded model to include more complete physics (such as longitudinal stresses). This project will enable the continued development and application of a scientific tool, the University of Maine Ice Sheet Model (UMISM). This tool enables a better understanding of the ice sheet and the processes that control mesoscale features of the ice sheet system, such as ice streams. The key to the development of a truly predictive model is a bridge between the larger-scale physics of an ice sheet and the smaller-scale processes that exert such important control over the dynamic behavior of the ice sheet system. The results of this work will be disseminated at meetings and by publication in appropriate technical journals.