Dr. Zhang specializes in numerical modeling and theoretical study of atmospheric chemistry/air quality engineering. Her research interests include air pollution modeling and assessment, atmospheric chemistry and transport, chemistry and dynamics of atmospheric aerosols, sensitivity, uncertainty, and process analysis, and interactions among air quality, meteorology, and climate change. She led or contributed to the development, improvement, application, and evaluation of several major three-dimensional models on urban, regional, and global scales including STEM III, GChM, MIRAGE, SCICHEM, CMAQ, CMAQ-MADRID, CAMx, MM5, WRF, WRF/Chem, and CESM/CAM5. She utilized these models for studies on the long range transport of mineral dust and its interactions with tropospheric chemistry in East Asia; the formation and fate of tropospheric ozone and particulate matter in the U.S. and trans-pacific region; power plant plume chemistry and its impact on visibility in the U.S.; the effects of planetary boundary layer schemes, land-surface schemes, and cloud microphysics treatments on transport, transformation, and dry and wet deposition of air pollutants; global aerosol direct and indirect radiative forcing, feedbacks among chemistry, aerosol, cloud, radiation, and climate on regional and global scales.