Heat waves in summer 2022 and increasing concern regarding heat waves in general

作者：Riyu Lu, Ke Xu, Ruidan Chen, Wei Chen, Fang Li, Chenyu Lv · 发表于：Atmospheric and Oceanic Science Letters · 年份：2022 · DOI：10.1016/j.aosl.2022.100290 · 被引用次数：176 · 研究领域：Climate Change and Health Impacts、Atmospheric and Environmental Gas Dynamics、Climate variability and models

The year 2022 featured an unprecedented hot summer that has attracted worldwide attention.Abnormal warming spread over most of the Eurasian continent and North America ( Fig. 1 ), with Europe and China especially suffering from extraordinarily long-lasting extreme heat events.In addition, severe droughts, which are a common accompaniment to heat waves, attacked Europe and the Yangtze River basin in China.Droughts in Sichuan Province, which is in the upstream region of the Yangtze River basin and is proud of its water resources and hydro power, led to power shortages and adverse effects on the lives and productivity of local people.Extremely high temperatures and severe drought induced massive wildfires in Europe, North America, and Asia, including Chongqing ( Fig. 2 ), a neighboring municipality of Sichuan Province.Extraordinary atmospheric circulations have been blamed for the unprecedented warming and droughts in the Yangtze River basin during summer 2022.The western North Pacific subtropical high, as its name suggests, is usually located over the ocean.However, it extended far to the west in summer 2022, and even adjoined another well-known subtropical high: the Iran high.It is well known that heat waves are contributed by large-scale anomalous anticyclonic circulation via compression of sinking air and enhancement of solar radiation (e.g., Loikith and Broccoli, 2012 ;