在南极主要冰川下发现巨大的暖水通道

在索尔兹冰川(Thwaites Glacier)冰舌下方采集的新地图以及更远的海域显示,那里存在深(> 1000 米)而宽(> 20,000 米)的通道,将温暖的海水引导至冰层之下,加速融化,最终可能导致冰川崩塌。索尔兹冰川是西南极冰盖(WAIS)的一部分,其面积相当于英国,自 1992 年以来,它占西南极冰盖年质量损失的 55%。这些通道对暖水流向、冰川稳定性以及西南极冰盖的其余部分起着根本性的控制作用。仅这座冰川的崩塌就可能导致全球海平面上升超过 65 厘米。.

https://tc.copernicus.org/articles/14/2869/2020/
https://tc.copernicus.org/articles/14/2883/2020/

艾米·伊姆迪克编

帕姆·皮尔森

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