南极洲的Hektoria冰川撤退了25公里,在几个月中失去了近一半的质量,这是有史以来史上最快的冰川崩溃记录。
Antarctica’s Hektoria Glacier retreated 25 km and lost nearly half its mass in months, the fastest glacial collapse ever recorded.
南极东部半岛的Hektoria冰川在2022年1月至2023年3月之间撤退了25公里,仅两个月就损失了近50%的质量,比现代史上记录的任何冰川冰川撤退速度都要快。
The Hektoria Glacier on Antarctica’s eastern peninsula retreated 25 kilometers between January 2022 and March 2023, losing nearly 50% of its mass in just two months—faster than any recorded glacial retreat in modern history.
来自科罗拉多·博尔德大学的研究人员利用卫星和地震数据,将迅速崩溃与冰川的平面、淹没的基岩联系起来,使冰川在变薄后变得浮壮,触发了大规模断裂。
Researchers from the University of Colorado Boulder, using satellite and seismic data, linked the rapid collapse to the glacier’s flat, submerged bedrock, which allowed it to become buoyant after thinning, triggering massive calving.
该研究发表在《自然地球科学》上,发现仅两天内冰川损失达2.5公里,如果观测频率不那么频繁,可以忽略这一速度。
The study, published in Nature Geoscience, found the glacier lost up to 2.5 kilometers in just two days, a rate that could be missed with less frequent observations.
科学家警告说,大冰川(包括Thwaites)下类似的情况可能会加速海平面的上升。
Scientists warn similar conditions beneath larger glaciers, including Thwaites, could accelerate sea level rise.