Physical processes influencing the Asian climate due to black carbon emission over East Asia and South Asia

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

doi:https://doi.org/10.5194/acp-25-7647-2025

Articles | Volume 25, issue 14

https://doi.org/10.5194/acp-25-7647-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-7647-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 14

Research article

|

21 Jul 2025

Research article |

| 21 Jul 2025

Physical processes influencing the Asian climate due to black carbon emission over East Asia and South Asia

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

Supplement

https://doi.org/10.5194/acp-25-7647-2025-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

A new globally-complete monthly historical gridded mean sea level pressure dataset (HadSLP2): 1850-2004 (http://www.metoffice.gov.uk/hadobs/hadslp2/) R. Allan and T. Ansell https://doi.org/10.1175/JCLI3937.1

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Short summary

Black carbon (BC) aerosol is emitted from the incomplete combustion of biomass and fossil fuels. We found that Asian BC leads to strong local cooling and drying. Reductions in precipitation primarily depend on the thermodynamic effects due to solar radiation absorption by BC. The combined thermodynamic and dynamic effects shape the spatial pattern of precipitation responses to Asian BC. These results help us further understand the impact of emissions of anthropogenic aerosols on Asian climate.