The size-resolved cloud condensation nuclei (CCN) activity and its prediction based on aerosol hygroscopicity and composition in the Pearl Delta River (PRD) region during wintertime 2014
Mingfu Cai,Haobo Tan,Chak K. Chan,Yiming Qin,Hanbing Xu,Fei Li,Misha I. Schurman,Li Liu,and Jun Zhao
School of Atmospheric Sciences, Guangdong Province Key Laboratory
for Climate Change and Natural Disaster Studies, and Institute of Earth
Climate and Environment System, Sun Yat-sen University, Guangzhou,
China
Institute of Tropical and Marine Meteorology/Guangdong Provincial
Key Laboratory of Regional Numerical Weather Prediction, CMA, Guangzhou,
China
School of Energy and Environment, City University of Hong Kong,
Hong Kong SAR, China
Yiming Qin
Hong Kong University of Science and Technology, Hong Kong SAR, China
School of Engineering and Applied Sciences, Harvard University,
Cambridge, MA, USA
Hanbing Xu
School of Atmospheric Sciences, Guangdong Province Key Laboratory
for Climate Change and Natural Disaster Studies, and Institute of Earth
Climate and Environment System, Sun Yat-sen University, Guangzhou,
China
Institute of Tropical and Marine Meteorology/Guangdong Provincial
Key Laboratory of Regional Numerical Weather Prediction, CMA, Guangzhou,
China
Misha I. Schurman
Hong Kong University of Science and Technology, Hong Kong SAR, China
Li Liu
School of Atmospheric Sciences, Guangdong Province Key Laboratory
for Climate Change and Natural Disaster Studies, and Institute of Earth
Climate and Environment System, Sun Yat-sen University, Guangzhou,
China
School of Atmospheric Sciences, Guangdong Province Key Laboratory
for Climate Change and Natural Disaster Studies, and Institute of Earth
Climate and Environment System, Sun Yat-sen University, Guangzhou,
China
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Cloud condensation nuclei (CCN) play a critical role in cloud formation which affects solar radiation and climate. We employed advanced instruments to measure aerosol hygroscopicity and chemical composition and used them to predict CCN activity. Our results found that the CCN activity was largely dependent on the hygroscopicity parameter and the surface tension of the particles. Our study highlights the need for evaluating the effects of organics in order to accurately predict CCN activity.
Cloud condensation nuclei (CCN) play a critical role in cloud formation which affects solar...
