The Influence of Basal Hydrology on Glacier Sliding and Erosion

拟议研究的主要目标是增进对基础水文学对冰川滑动和泥沙输送的影响的了解。该项目将为软层冰川下的水文网络开发定量的预测模型，并审查冰川滑动和侵蚀的影响，以期纳入更大规模的冰川和冰盖模拟。理论工作将得到实验室研究的补充，这些研究将为模型参数的选择提供信息，并能够测试关键的模型预测。在实验室中，将使用‘Hele-Shaw槽’在不同温度和载荷下对耕作进行冻结、固化和饱和实验。更广泛的影响包括一名研究生和几名本科生的参与，以及将这项研究纳入由国际地球科学研究所教授的“地球力学”和“计算地球科学”课程。

The primary goal of the proposed research is to improve understanding of the influence of basal hydrology on glacier sliding and sediment transport. The project will develop quantitative, predictive models for the hydrological networks that underlie soft-bedded glaciers, and examine the implications for glacier sliding and erosion, with a view to incorporation into larger scale glacier and ice sheet simulations. The theoretical work will be complemented by laboratory studies that will inform choices for model parameters, and enable testing of key model predictions. In the laboratory, a 'Hele-Shaw cell' will be used to conduct freezing, solidification and saturation experiments on till at different temperatures and loads. The Broader Impacts include the involvement of a graduate student and several undergraduate students, and the incorporation of the research into 'Geomechanics' and 'Computational Earth Sciences' courses taught by the PI.