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\begin{document}

\title{Variation of the Air Mass Exposure to Chlorophyll Over Eastern China
Seas: an Insight into Marine Biogenic Aerosols}



\author[1]{Shengqian Zhou}%
\author[1]{Ying Chen}%
\author[1]{Fanghui Wang}%
\author[2]{Yang Bao}%
\author[1]{Zongjun Xu}%
\author[3]{Xiping Ding}%
\affil[1]{Fudan University}%
\affil[2]{Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention, Department of Environmental Science \& Engineering, Fudan University Jiangwan Campus}%
\affil[3]{Pudong New District Environmental Monitoring Station}%


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  \date{May 04, 2024}


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\begin{abstract}
Marine biological activities make substantial influences on aerosol
composition and properties. The eastern China seas are highly productive
with significant emissions of biogenic substances. Air mass exposure to
chlorophyll a (AEC) can be used to indicate the influence of biogenic
source on the atmosphere to a certain degree. In this study, the 12-year
(2009--2020) daily AEC were calculated over the eastern China seas
showing the spatial and seasonal patterns of marine biogenic influence
intensity are co-controlled by surface phytoplankton biomass and
boundary layer height. The AEC was linearly correlated with aerosol
methanesulfonate (MSA) in each of three sub-regions, and the constructed
parameterization scheme was applied to simulate the spatiotemporal
variation of marine biogenic MSA. This AEC-based approach with
observation constraints provides a new insight into the distribution of
marine biogenic aerosols which may become increasingly important with
the decline of terrestrial input to the studied region.%
\end{abstract}%



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