格陵兰岛最大冰舌遭遇极端融化

冰冻圈,2024年3月22日

格陵兰岛关键的北纬79度冰川的漂浮部分(“冰舌”)在过去三十年里变薄了三分之一,其中陆地冰与海洋交汇处的融化速度极高。作者们揭示了不断升高的气温如何产生融水湖,这些融水湖在冰川中冲刷出巨大的排水通道,直达海洋。这项研究发现在北纬79度冰川底部存在一个500米高的通道,地表融水向下流,温暖的海水从下方流入,进一步侵蚀了冰川。对这个漂浮冰舌在未来数年甚至数十年内可能断裂的过程进行持续监测,将揭示格陵兰岛和南极洲类似地区将如何应对未来的气候变暖。.

全文 https://tc.copernicus.org/articles/18/1333/2024/
通俗易懂的简报: 巨大的格陵兰冰川冰损失

帕姆·皮尔森

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