A Study of Sulfur Transport and Transformation over East Asia in the Springtime I. Model System and Its Verification
东亚地区春季二氧化硫的输送与转化过程研究I.模式及其验证

A coupled regional chemical transport modeling system is applied to East Asia to investigate the impacts of meteorological processes, gas phase chemistry, aqueous phase chemistry, aerosol processes, heteorogeneous chemistry and deposition processes upon sulfur transport and transformation in the springtime on the basis of recently estimated emission inventory for East Asia Modeled values of sulfur dioxide and nitrate aerosol mixing ratios were compared with the observations obtained on the ground and on the aircraft during TRACE P and ACE Asia field campaigns in 2001 Comparison shows that the simulated values agree well with the observations, and the modeling system simulates the distributions and variations of sulfur dioxide and nitrate aerosol concentrations quite well, and reproduces many of the observed important features The good agreement between the simulated results and the observations provides confidence in future analysis of the simulated results