Seasonal variations in subglacial traction: Case study of Hofsjokull ice cap

该项目将结合冰岛霍夫斯约库尔冰盖的高分辨率、随时间变化的表面速度测量和粘塑性冰层上冰流的简化模型，以了解表面冰速度的季节变化。重点将放在使用简化的冰下水文模型来了解耕作特性的可变性，从而了解基础牵引力对记录的水文强迫的响应。此外，还将利用对动员耕作的了解来评估冰川地貌的长期侵蚀。

This project will combine fine-resolution, time-dependent surface velocity measurements of the Hofsjokull ice cap in Iceland with simplified modelling of ice flow over a visco-plastic till to understand the seasonal variations exhibited in surface ice velocity. Emphasis will be placed on using simplified models of subglacial hydrology to understand the variability of till properties and hence the basal traction in response to recorded hydrological forcing. In addition, an understanding of the mobilised till will be used to evaluate the long-term erosion of glacial landforms.