北极海冰融化会导致更多的夏季极端高温吗？

IF 4.6 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Geophysical Research Letters Pub Date : 2025-07-17 DOI:10.1029/2025GL116668

Yutian Wu, Lantao Sun, Owen Terry

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引用次数: 0

摘要

我们利用由未来北极海冰损失造成的模式模拟，量化了21世纪后期北极海冰损失对北半球（NH）夏季极端高温的影响。首先，在我们的模式模拟中，我们发现北半球大陆的热极端频率总体上有所增加，但仅在存在海洋-大气耦合的情况下。极端高温发生频率的增加完全是由于平均温度的升高。然而，总的来说，与相应的未来变暖情景相比，未来北极海冰损失导致的北半球大陆极端高温事件的增加相对较小。结果表明，未来北极海冰损失对北半球夏季极端高温的影响不可忽视，但作用有限。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Can Arctic Sea Ice Melting Lead to More Summertime Heat Extremes?

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Can Arctic Sea Ice Melting Lead to More Summertime Heat Extremes?

We quantify the impact of late 21st century Arctic sea ice loss on Northern Hemisphere (NH) summertime heat extremes using model simulations that are forced by the future Arctic sea ice loss. First, we find an overall increase of heat extreme frequency in the NH continents in our model simulations, but only in the presence of ocean-atmosphere coupling. The increased frequency of heat extremes is entirely due to mean temperature increase. However, in comparison to the corresponding future warming scenario, in general, increases in heat extremes in NH continents due to the future Arctic sea ice loss are relatively small. The results suggest a non-negligible but limited role of the future Arctic sea ice loss on contributing to the NH summertime heat extremes.

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来源期刊

Geophysical Research Letters 地学-地球科学综合

CiteScore

9.00

自引率

9.60%

发文量

1588

审稿时长

2.2 months

期刊介绍： Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.