Model Studies of Radar Internal Layering in West Antarctic Ice Streams

南极西部冰流雷达内部分层模型研究

• 批准号: 9117831
• 负责人: Neil Humphrey
• 金额: $ 3.13万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-01-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9117831&HistoricalAwards=false
• 关键词: Model; Studies; Radar; Internal; Layering

This award is for support of a feasibility study to investigate whether the internal layering, as recorded in radar data from the Siple Coast ice streams, can be interpreted to yield information about the transition from normal ice sheet flow to streaming flow in the ice streams. A methodology for modeling the production and advection of folds in internal layers, using approximations based on steady state analytic models of Whillans and Johnsen (1983), and on simple geometic numerical modeling will be used. Recently acquired data will be analyzed with the objective of determining the scale of the processes operating in the transition zone. The practicality or feasibility of using the technique to guide further research will be examined. If successful, this approach represents a low-cost means of investigating the poorly known transition zones of the ice streams.

该奖项是为了支持一项可行性研究， 是否内部分层，记录在雷达数据从 简单的海岸冰流，可以解释产生的信息 关于从正常的冰盖流到流动的转变 在冰流中。 一种生产建模方法 和平流的褶皱在内部层，使用近似 基于Whillans和Johnsen的稳态分析模型 （1983），并在简单的几何数值模拟将被使用。 将对最近获得的数据进行分析，目的是 确定在该系统中操作的过程的规模， 过渡区 使用的实用性或可行性 将审查指导进一步研究技术。 如果 成功的，这种方法是一种低成本的手段， 研究冰的鲜为人知的过渡区 溪流