Articles | Volume 21, issue 17
Atmos. Chem. Phys., 21, 13443–13454, 2021
https://doi.org/10.5194/acp-21-13443-2021
Atmos. Chem. Phys., 21, 13443–13454, 2021
https://doi.org/10.5194/acp-21-13443-2021

Research article 10 Sep 2021

Research article | 10 Sep 2021

Characteristics of surface energy balance and atmospheric circulation during hot-and-polluted episodes and their synergistic relationships with urban heat islands over the Pearl River Delta region

Ifeanyichukwu C. Nduka et al.

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Short summary
This study analyzed the nature, mechanisms and drivers for hot-and-polluted episodes (HPEs) in the Pearl River Delta, China. A total of eight HPEs were identified and can be grouped into three clusters of HPEs that were respectively driven (1) by weak subsidence and convection induced by approaching tropical cyclones, (2) by calm conditions with low wind speed in the lower atmosphere and (3) by the combination of both aforementioned conditions.
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