Earth’s response to ice unloading: a unique GPS measurement from Antarctica

地球对冰卸载的响应：来自南极洲的独特 GPS 测量

• 批准号: LE150100108
• 负责人: Prof Matt King
• 金额: $ 12.67万
• 依托单位: University of Tasmania
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Infrastructure, Equipment and Facilities
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2016-03-03
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LE150100108
• 关键词: Earth; response; ice; unloading; unique

Earth's response to ice unloading - a unique GPS measurement from Antarctica: This project aims to deploy geophysical equipment including global navigation satellite systems within Antarctica to understand how Earth responds to changes in stress (rheology) within the crust and upper mantle (the upper ~660 km). It exploits a globally-unique natural experiment that commenced in 2002 with the break-up of the Larsen B Ice Shelf and which was followed by large-scale ice-mass unloading and rapid surface deformation. New broadband passive seismic and geodetic deformation measurements offer the promise of resolving a dichotomy between laboratory and millennial-scale determinations of Earth rheology through uniquely studying a time-scale mid-way between these extremes, whilst further strengthening Australia's emerging expertise in polar geophysics.

地球对冰卸载的反应 - 南极的独特GPS测量：该项目旨在部署地球物理设备，包括南极内的全球导航卫星系统，以了解地球对地壳和上层甲板中压力变化（流变学）的反应（上层〜660 km）。它利用了一项全球唯一的自然实验，该实验于2002年开始，随着拉尔森B冰架的破裂，随后是大规模的冰质卸载和快速的表面变形。新的宽带被动地震和地球变形测量值可以通过独特地研究这些极端之间的时间表，同时进一步增强澳大利亚在极地地球物理学中的澳大利亚征兆专业知识，从而解决实验室和千禧年尺度确定实验室和千禧一代确定的二分法的希望。