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北极海冰范围冬季峰值 47 年来最低

2025-03-31 15:12 by 刀剑神域进击篇05

美国国家冰雪数据中心最新数据显示,北极海冰今年冬季峰值范围创下从 47 年前有卫星记录以来的最低水平,这是气候变化的“症状”之一,将对全球产生影响。每年 3 月,北极海冰达到最大覆盖范围,随后开始为期 6 个月的融化季节。美国国家冰雪数据中心表示,本月22 日测得的最大范围是 1433 万平方公里。数据显示,这比 1981 年至 2010 年的平均最高值小 131 万平方公里,比 2017 年记录的最低值小 80 万平方公里。科学家警告称,尽管海冰范围一年四季都在缩小,但对北极冰盖整体健康而言,最重要的季节是夏季。冬季薄冰在夏季加速融化,或将形成恶性循环:无冰海域吸收更多热量,导致秋冬季海冰恢复能力持续弱化。

科技日报:北极海冰范围冬季峰值47年来最低

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北极海冰范围冬季峰值 47 年来最低

2025-03-31 15:12 by 刀剑神域进击篇05

美国国家冰雪数据中心最新数据显示,北极海冰今年冬季峰值范围创下从 47 年前有卫星记录以来的最低水平,这是气候变化的“症状”之一,将对全球产生影响。每年 3 月,北极海冰达到最大覆盖范围,随后开始为期 6 个月的融化季节。美国国家冰雪数据中心表示,本月22 日测得的最大范围是 1433 万平方公里。数据显示,这比 1981 年至 2010 年的平均最高值小 131 万平方公里,比 2017 年记录的最低值小 80 万平方公里。科学家警告称,尽管海冰范围一年四季都在缩小,但对北极冰盖整体健康而言,最重要的季节是夏季。冬季薄冰在夏季加速融化,或将形成恶性循环:无冰海域吸收更多热量,导致秋冬季海冰恢复能力持续弱化。

科技日报:北极海冰范围冬季峰值47年来最低

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