海平面上升，因此在模型中地平线也会上升，卡兹的团队发现存在一个临界点，如果冰川超过该点便无法恢复到从前的状态。
By raising sealevels, and therefore the grounding line, in their model, Katz's teamwere able to find the point of no return beyond which the glacier wouldbe unable to recover.
研究人员发现只要地平线处于海床的外部隆起处，在裂缝增加之前，气候的轻微变化就会相应导致冰川体积的微妙变化。
The researchers foundthat as long as the grounding line is on the outer rise of the sea bed, before the lip, small changes in climate lead to correspondingly smallchanges in the glacier's ice volume.
2001年图片中的黄线显示的是2010年7月初冰川消退的部分。
The yellow line in the 2001 image shows the part of the glacier that retreated by early July 2010.
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