This study quantitatively delineates the lifecycle of the record-breaking 2022 mega-heatwave over central-eastern China using a process-resolving, energetics-based attribution framework. It finds that radiative heating and atmospheric dynamics dominated energy buildup during the developing stage, while land-atmosphere coupling and atmospheric advection sustained and terminated the heatwave, respectively. A reduction in anthropogenic aerosols contributed positively throughout the event, suggesting pollution mitigation may increase future heatwave amplitudes. The framework also helped identify model biases in sub-seasonal heatwave predictions.
Publisher
npj Climate and Atmospheric Science
Published On
Oct 06, 2023
Authors
Tuantuan Zhang, Yi Deng, Junwen Chen, Song Yang, Yongjiu Dai
Tags
heatwave
energy buildup
atmospheric dynamics
pollution mitigation
model biases
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