Supercooled Water, Basal Freeze-on (Underplating), and the Formation of Laminatede Basal Ice, Matanuska Glacier, Alaska

这个奖项是为了支持一个项目，研究的过程， 马塔努斯卡冰川底部的碎片夹带。 传统的泥沙夹带理论依赖于压力- 冰川周围障碍物的融化和重新冻结 鞋底。 然而，冰川周围初步工作的证据表明， 这表明冰和沉积物是冰川底部的 净冻结过程。水的理论计算 冰下管道的流动表明， 结冰只能存在于水向上流动的地方， 过度深化 更好地理解这一过程将有助于 控制冰川运动和冰碛物形成的因素。

This award is for support of a project to study the processes of debris entrainment at the base of the Matanuska Glacier. Conventional theories of sediment entrainment rely on pressure- induced melting and refreezing around obstacles at the glacier sole. Evidence from preliminary work around the glacier, however, suggest that ice and sediment is underplated to the glacier base by a process of net freeze-on. Theoretical calculations for water flow in subglacial conduits indicate that conditions necessary for freezing can only exist where water flows uphill out of an overdeepening. A better understanding of this process will shed light on the factors controlling glacier movement and till genesis.