The Largest Ever Recorded Heatwave—Characteristics and Attribution of the Antarctic Heatwave of March 2022
The Largest Ever Recorded Heatwave—Characteristics and Attribution of the Antarctic Heatwave of March 2022
复制标题
有记录以来最大的热浪——2022 年 3 月南极热浪的特征和归因
DOI:
10.1029/2023gl104910
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发表时间:
2023
影响因子:
5.2
通讯作者:
Donohoe, Aaron
中科院分区:
文献类型:
--
作者:
Blanchard‐Wrigglesworth, Edward;Cox, Tyler;Espinosa, Zachary I.;Donohoe, Aaron
An unprecedented heatwave impacted East Antarctica in March 2022, peaking at 39°C above climatology, the largest temperature anomaly ever recorded globally. We investigate the causes of the heatwave, the impact of climate change, and a climate model's ability in simulating such an event. The heatwave, which was skillfully forecast, resulted from a highly anomalous large‐scale circulation pattern that advected an Australian airmass to East Antarctica in 4 days and produced record atmospheric heat fluxes. Southern Ocean sea surface temperatures anomalies had a minimal impact on the heatwave's amplitude. Simulations from a climate model fail to simulate such a large temperature anomaly mostly due to biases in its large‐scale circulation variability, showcasing a pathway for future model improvement in simulating extreme heatwaves. The heatwave was made 2°C warmer by climate change, and end of 21st century heatwaves may be an additional 5–6°C warmer, raising the prospect of near‐melting temperatures over the interior of East Antarctica.
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