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-南极洲独特的全球定位系统测量结果：该项目旨在在南极洲部署地球物理设备，包括全球导航卫星系统，以了解地球如何对地壳和上地幔（上部~660公里）内的应力（流变学）变化作出反应。它利用了一个全球独特的自然实验，该实验始于2002年拉森B冰架的破裂，随后是大规模的冰体卸载和快速的表面变形。新的宽带被动地震和大地形变测量提供了解决地球流变学的实验室和千年尺度的测定之间的二分法的承诺，通过独特的研究这些极端之间的时间尺度的中途，同时进一步加强澳大利亚在极地地球物理学的新兴专业知识。