Cloud physics perspective on the mechanism of frequent wildfires in the context of climate change: a review of the coupling effect between cloud droplet nucleation and convective processes

Gujia Wang

doi:10.54097/1p5md728

Authors

Gujia Wang

DOI:

https://doi.org/10.54097/1p5md728

Keywords:

Wildfires; Aerosols; Cloud Microphysics; Convection; Climate Feedbacks.

Abstract

Wildfires represent one of the most severe ecological disturbances in the Anthropocene, with their frequency and intensity strongly linked to climate change. From a cloud physics perspective, wildfire mechanisms are shaped by the coupling of aerosol–cloud interactions and convective processes. The Twomey and Albrecht effects alter cloud microphysical properties, reduce precipitation efficiency, and intensify drought conditions. Wildfire-emitted black carbon further modifies radiative forcing, prolongs cloud lifetime, and reinforces feedback loops within the climate system. Global warming enhances convective instability, facilitating aerosol uplift and amplifying the cycle of suppressed rainfall and increased wildfire risk. Recent empirical studies and modeling efforts reveal the multi-scale feedback between aerosols, clouds, and convection that underpin wildfire dynamics. Current monitoring frameworks and policy approaches remain limited, underscoring the urgent need for interdisciplinary strategies that strengthen prediction, prevention, and post-fire ecological recovery.

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