Contrasting impacts of Asian sulfate aerosols on regional summer extreme precipitation under different climate backgrounds

Luo, Feifei; Joshi, Manoj; Samset, Bjørn H.; Wilcox, Laura J.; Stjern, Camilla W.; Allen, Robert J.; Kuo, Yan-Ning; Hua, Wei; Li, Shuanglin

doi:10.5194/acp-26-15037-2026

Articles | Volume 26, issue 20

https://doi.org/10.5194/acp-26-15037-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-15037-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 20

Research article

|

27 Oct 2026

Research article |

| 27 Oct 2026

Contrasting impacts of Asian sulfate aerosols on regional summer extreme precipitation under different climate backgrounds

Feifei Luo, Manoj Joshi, Bjørn H. Samset, Laura J. Wilcox, Camilla W. Stjern, Robert J. Allen, Yan-Ning Kuo, Wei Hua, and Shuanglin Li

Supplement

https://doi.org/10.5194/acp-26-15037-2026-supplement

Data sets

Precipitation Driver Response Model Intercomparison Project data sets 2013-2021 T. Andrews et al. https://doi.org/10.26050/WDCC/PDRMIP_2012-2021

Download

Article (11428 KB)
Full-text XML

Short summary

This study examines whether aerosol impacts on extreme rainfall shift in a warmer world. Using a climate model, we compare identical Asian SO4 forcing under pre-industrial and 1 K warmer climates. Aerosols reduce extreme rainfall in both, but more strongly over northern India in the warmer climate. A warmer, stabler atmosphere weakens circulation that partly offsets aerosol drying in pre-industrial conditions. Continued warming may strengthen this drying over parts of Asia.