TRANSPORT OF POLLUTANTS ASSOCIATED WITH COLD FRONT IN SOUTH CHINA IN SPRING
华南地区春季冷锋云系中污染物的输送

Three dimensional air Parcel trajectories associated with the cold front are Proposed to estimate the transport and deposition of acid pollutants when the cold front moves southward.The pollutants in original stable layer is lifted into the clouds. There is a cycle of pollutants accumulating transporting at high level and wet depositing to the ground. The SO2 and sulfate emitted from one source can make acid precipitation in a distance of several hundred kilometers. The trajectory puff model showed also that those local sources are still playing primary roles for pollutant transport when the cold front moved from north to south.