Dr. Bian has a long-term commitment to the studies of air quality, atmospheric chemistry, and climate change. She leads GMI aerosol study to understand uncertainties in aerosol mass, AOT, and aerosol forcing simulations stemming from various aerosol modules and to understand the effects of aerosol on radiative and chemical budgets of the climate system. She develops a global chemical transport model UCTM to study the physical and chemical processes that determine atmospheric composition. She also contributes to the development of a detailed numerical model of photochemistry and atmospheric radiation Fast-JX and uses it to study dynamical feedback between aerosol and atmospheric chemistry.