Measurements of Physico-Chemical Properties of Atmospheric Aerosols and Their Impacts in Air Pollution and Climate

Dear Colleagues,

Air pollution and climate change are two important issues threatening our Earth. Natural and anthropogenic aerosols significantly affect weather and Earth’s climate system and air quality by scattering and absorbing solar radiation, acting as cloud condensation nuclei (CCN) and ice nuclei (IN), and modifying the microphysical properties and the life cycle of clouds through various processes. The changes in weather and climate system in turn impact humans and a wide ecosystem and environment from urban to high-altitude areas/arctic regions. Given the significance of the interactions between aerosols and weather/climate, accurately determining the microphysical and chemical properties of aerosols is of great importance.

In the past decades, a wide range of studies has been focusing on the physical-chemical properties of aerosols via observations, laboratory experiments as well as model simulations. However, due to the complexity of atmospheric aerosols and their interactions with weather/climate, the data on detailed physical-chemical properties of aerosols is still limited and large uncertainties associated with aerosol-weather/climate interactions are still present. In this Special Issue, we welcome all studies based on ambient observations, laboratory experiments, model simulations, and theoretical approaches that investigate the physical and chemical properties of aerosols and their impacts on and/or interaction with weather and climate system. Our Special Issue aims at filling the data pool of physical-chemical properties of aerosols by most recent development and discoveries and addressing to improve our understanding and quantify the roles of aerosols on weather/climate. Relevant topics include (1) aerosol microphysical and chemical properties investigated both by bulk and single-particle approaches, e.g., size, morphology, mixing/phase state, chemical composition, hygroscopicity, volatility, refractive index, etc., and their changes during atmospheric evolution (2) Relationships of these aerosol properties with air quality, radiation, clouds/fogs, precipitation, extreme weather like heat waves, and large-scale atmospheric circulation and (3) Roles of the interactions of aerosol physical and chemical properties and weather and climate and implications on future mitigation strategies involving air quality/weather/climate change.

Dr. Juan Hong
Dr. Jiangchuan Tao
Dr. Junwen Liu
Guest Editors

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