Increased variability of the western Pacific subtropical high under greenhouse warming.
Where this comes from
- Record sourced from PubMed, PMID 35639698.
- Also identified by DOI 10.1073/pnas.2120335119 and PMC identifier 9191675.
- Licence recorded as CC BY-NC-ND.
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Abstract
SignificanceThe western Pacific subtropical high (WPSH) channels moisture from the tropics that underpins the East Asian summer climate. Interannual variability of the WPSH dominates climate extremes in the densely populated countries of East Asia. In 2020, an anomalously strong WPSH led to catastrophic floods with hundreds of deaths, 28,000 homes destroyed, and tens of billions in economic damage in China alone. How the frequency of such strong WPSH events will change is of great societal concern. Our finding of an increase in future WPSH variability, translating into an increased frequency of climate extreme as seen in the 2020 episode, highlights the increased risks for the billions of people in the densely populated East Asia with profound socioeconomic consequences.