A Study of Calving Dynamics for Jakobshavns Isbrae

该奖项是为了支持一项为期两年的研究，研究格陵兰岛西海岸雅各布港伊斯布雷浮冰架的产冰动力学。雅各布港呈现了全方位的冰崩解环境，包括从朝南的冰壁缓慢的片流崩解到一个浅的前冰湖，从朝北的冰崖快速的片流崩解到越来越深的水，到已知最快的流崩解从雅各布港峡湾的一个漂浮冰架的朝西悬崖。显示冰的地形和冰的速度的摄影测量地图将被用作导致断裂（裂缝）和崩解的均匀和非均匀冰蠕变的有限元计算机模型的输入。拟议的研究的应用范围超出了雅各布港研究所，特别是与南极冰架崩解有关的应用。

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.