Borehole Study of Antarctic Ice-Stream Mechanisms

南极冰流机制的钻孔研究

• 批准号: 9018703
• 负责人: Barclay Kamb
• 金额: $ 56.82万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-01 至 1995-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018703&HistoricalAwards=false
• 关键词: Borehole; Study; Antarctic; Ice; Stream

This award is for support of a borehole study to determine the mechanisms that control the movement of antarctic ice- streams and to provide an observational basis for quantitative modeling of ice stream motions. The objective is an understanding of the ice stream flow mechanism, including soft-bed deformation vs. basal sliding as the predominant flow process; flow law of basal till, or sliding law; nature of the basal water conduit system under the ice streams; sources of basal water; and lithologic evolution of basal till by erosion and comminution processes.

该奖项是为了支持钻孔研究，以确定 控制南极冰运动的机制 并提供观测基础， 冰流运动的定量模拟。 客观 是对冰流流动机制的理解， 包括软床变形与基底滑动， 主导流动过程;底碛或滑动的流动规律 冰下基底输水系统的性质 河流;基底水的来源;以及 通过侵蚀和粉碎过程的底部耕作。