Research
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Research in my group focuses on measurements of chemical, physical and optical properties of atmospheric aerosols. Understanding how the properties of aerosols in the Earth's atmosphere vary in both space and time is of great importance owing to their influence on global climate, precipitation, visibility and human health. Both laboratory and field experiments are carried out, where the underlying paradigm can be described as follows:
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In our lab, we are actively exploring how chemical processes influence the interaction between aerosols and radiation (UV, visible and IR). Some of the tools that we use are cavity ring-down spectrsocopy (CRDS) and photo-acoustic spectrscopy (PAS). Using CRDS, the total light extinction by particles at a particular wavelength can be measured while PAS is used to measured the amount of light absorption by particles. That both CRDS and PAS are implemented in situ enables us to investigate in real-time how volatility and hygroscopicity of atmospheric aerosols influence their optical properties.
More to come soon...