Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 9
Articles | Volume 26, issue 9
https://doi.org/10.5194/acp-26-6351-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-6351-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 9
Research article
 | 
12 May 2026
Research article |  | 12 May 2026

Spatial-scale dependence of aerosol indirect effects over land in eastern China: a comparative analysis

Yuqin Liu, Tao Lin, Jiahua Zhang, Fu Wang, Meixia Lin, Yuan Chen, Yiyi Huang, Hongkai Geng, Xin Cao, and Gerrit de Leeuw

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Short summary
This study reveals how air pollution affects cloud properties in eastern China using satellite data from 2008–2022. We find CER/LWP (cloud droplet effective radius/liquid water path) relationship exhibits three regimes, modulated by aerosol concentration. The Twomey effect is confirmed, and its sensitivity shows significant spatial-scale dependence. Surprisingly, cleaner air after 2015 make clouds less sensitive to pollution's effects. The optimal buffer sizes show notable variations for the study area in the range from 6°×6° to 10°×10°.
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