The glacier incurs stresses due to the change in the bed-rock topography it flows over, the lack of pressure in front of it and the reduction in thickness at the front.
由于它经过的床岩地势变化,以及它的前部缺乏压力,厚度缩小,冰川遭受到压力。
2
Sea ice abuts the floating glacier tongue except in three places along the front of the glacier.These ice-free areas are called polynyas.