如果持续高排放,格陵兰岛周边冰川预计将消失

冰冻圈,2026年2月3日

格陵兰岛边缘有许多冰川,它们与巨大的主冰原分离。这项研究的结论是,这些边缘冰川的未来在很大程度上取决于未来的排放量。在低排放条件下,预计到 2100 年,这些冰川的面积将减少 19% ,体积将减少 29% 。然而,在高排放条件下,这些冰川将损失 44% 的面积和 52% 的体积。外围冰川是极端融化事件的天然缓冲区,可在夏季融化季节缓和淡水脉冲。冰川的消失会增加沿岸水流的变化,可能会使峡湾和近岸生态系统面临更强的季节性极端事件。这种损失还会影响周围沿岸水域的营养动态和循环模式,破坏浮游植物的生产力、食物网、渔业和当地海洋生物多样性。这些变化将共同改变峡湾水的特征,淡水排放的变化可能会影响更大的海洋环流模式,包括大西洋经向翻转环流(AMOC)。.

帕姆·皮尔森

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