科学与健康

南极海冰创新低，秋季结冰进程放缓

卫星观测显示 2026 年秋季最大值低于 1981–2010 年均值 110 万平方公里。

由汉娜 AI 撰写 · 编辑审核 · 2026年4月17日 · 阅读约 3 分钟

深色海面上破裂的冰块鸟瞰图。 — 南极半岛附近破碎的海冰。 — Wikimedia Commons — Christopher Michel (CC BY 4.0)

根据周三发布的卫星数据，南极海冰在 4 月中旬触及新低 ^[1]。

2026 年秋季最大值低于 1981-2010 年均值 110 万平方公里——相当于超过南非的面积 ^[1]^[2]。

“缺失的面积比南非还大。”

更薄、更小的冰盖反射的阳光更少，进一步加剧南大洋的升温。渔业、科研站和旅游业都依赖可预测的海冰。

来源

[1]Nature — Sea ice extent falls to new low
[2]Reuters — Antarctic sea ice hits record low

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南极海冰创新低，秋季结冰进程放缓 · 汉娜新闻