A Study of Calving Dynamics for Jakobshavns Isbrae

该奖项是为了支持一项为期两年的产犊动力学研究 西部的雅各布港伊斯布雷的浮冰架 格陵兰海岸。 雅各布斯展示了全系列的冰 产犊环境，从缓慢的片流产犊， 向南的冰墙进入一个浅的冰前湖，通过 更快的片流崩解从朝北的冰崖进入 水的深度增加，以最快的已知流 从一个漂浮的冰架的西向悬崖崩解， 雅各布斯峡湾 显示冰层地形的摄影地图 和冰速度将被用作有限元的输入 均匀和非均匀蠕变的计算机模拟 冰导致断裂（裂缝）和冰解。 的 这项研究的应用范围超出了雅各布斯·伊斯布雷， 与南极冰裂有关的特殊应用 货架

This award is for support of a two year study of calving dynamics for the floating ice shelf of Jakobshavns Isbrae on the west coast of Greenland. Jakobshavns presents the full range of ice calving environments, ranging from slow sheet-flow calving from a south-facing ice wall into a shallow proglacial lake, through faster sheet-flow calving from a north-facing ice cliff into water of increasing depth, to the fastest known stream-flow calving from the west-facing cliff of a floating ice shelf in Jakobshavns Isfjord. Photogrammetric maps showing ice topography and ice velocity will be used as input for finite-element computer modeling of both homogeneous and nonhomogeneous creep of ice that leads to fracture (crevassing) and calving. The proposed study has applications beyond Jakobshavns Isbrae, in particular applications relating to calving of Antarctic ice shelves.