Unprecedented anticyclonic anomaly in northeast Asia triggers extreme weather events and prolonged marine heat wave

A study published in Advances in Atmospheric Sciences has revealed the unprecedented nature of an anticyclonic anomaly that occurred over Northeast Asia in July 2021. It not only played a pivotal role in the catastrophic extreme precipitation experienced in Henan Province in central China, but also caused a prolonged and intense marine heat wave in the Japan Sea—the strongest event of its kind in the western North Pacific in the past four decades.