Mass Balance and Ice Stream Mechanics in West Antarctica

南极洲西部的质量平衡和冰流力学

• 批准号: 9020760
• 负责人: Ian Whillans
• 金额: $ 40.5万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 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: 1991-07-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9020760&HistoricalAwards=false
• 关键词: Mass; Balance; Ice; Stream; Mechanics

This award supports a study to determine the mass balance and mechanics of ice flow in the Siple Coast region of West Antarctica. The work is aimed at refining the mass balance calculation for ice stream B and allowing the first accurate calculations of the mass balance of ice streams D and E. The flow mechanics of the ice streams will be studied using strain grids, which allow the side drag, longitudinal tension and basal friction to be determined. Limited strain and topographic grids observed on Spot-satellite imagery. This work will document the current physical state of the Ross Sea sector of the West Antarctic Ice Sheet and contribute to the understanding of the cause of the extremely rapid drainage of the ice sheet through large ice streams.

该奖项支持一项研究，以确定质量平衡 西部西普尔海岸地区的冰流和力学 南极洲 这项工作的目的是完善质量平衡 冰流B的计算，并允许第一个精确的 冰流D和E的质量平衡计算。的 冰流的流动力学将采用 应变网格，允许侧阻力，纵向 张力和基底摩擦力。 有限应变 和地形网格上观察到的斑点卫星图像。 这项工作将记录目前的物理状态， 南极洲西部冰盖的罗斯海部分， 有助于了解原因 冰盖通过大冰块极其迅速地排水 溪流