Woosuk Choi

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About

Woosuk Choi is an atmospheric chemist whose research focuses on the optical properties and climate impacts of carbonaceous aerosols, particularly brown carbon and black carbon. His most-cited work, "Significant light absorption of brown carbon during the 2020 California wildfires" (2021, 20 citations), provides critical insights into how wildfire emissions alter atmospheric radiation balance. By demonstrating that brown carbon from these extreme events absorbs significantly more sunlight than previously assumed, Choi’s findings challenge existing climate models and highlight the need to account for wildfire-driven aerosol effects. This study has become a key reference for understanding the interplay between wildfires, air quality, and climate forcing. Beyond this paper, Choi’s broader contributions include advancing measurement techniques for aerosol light absorption and characterizing the aging processes of organic aerosols. His work bridges laboratory experiments and field observations, offering a nuanced view of how combustion sources influence regional and global climate. With growing wildfire frequency due to climate change, Choi’s research is increasingly vital for predicting atmospheric responses and informing mitigation strategies.