Late pleistocene ice history and glacial isostasy on earth with composite rheology and lateral heterogeneity

对末次冰川期以来固体地球及其海洋对冰川和去冰川事件（即冰川均衡调整或GIA过程）的响应进行数值模拟，使我们能够了解更新世以来地幔内部的粘度或流动特性以及冰盖厚度历史。黏度的知识对于理解热演化和地幔动力学至关重要，它们在过去、现在和未来塑造了地球的结构。冰厚史的知识为古气候模拟提供了现实的边界条件，对冰川学和全球变化研究也很有用。改进的GIA知识也需要准确地监测当今全球变暖与现代大地测量技术。这项研究的结果也将有助于减轻加拿大冰川循环和水资源管理引起的地震风险，因为陆地的不同垂直运动影响河流、湖泊和海岸线的流动。

Numerical modeling of the response of the solid earth and its oceans to the glaciation and deglaciation events since the last Ice Age (i.e. Glacial Isostatic Adjustment or GIA process) gives us knowledge about the viscosity or flow property inside the mantle and the ice sheet thickness history during the Pleistocene. Knowledge of the viscosity is crucial in understanding thermal evolution and mantle dynamics that shaped the structure of our planet in the past, present and future. Knowledge of the ice thickness history provides realistic boundary conditions for paleoclimate simulation and is useful for glaciology and global change studies. Improved knowledge of GIA is also required to accurately monitor present-day global warming with modern geodetic techniques. The results of this study will also be useful for mitigating earthquake risk induced by glacial cycles and water resource management in Canada as the differential vertical motion of the land affects the flow of rivers, lakes and coastlines.