A model analysis of transport of sulfur oxides in China and outflow to the sea

作者：Maeda T^*; Hayashi M; Imasu R; Wang Z

来源：Water, Air, and Soil Pollution, 2001, 130(1-4): 355-360.

DOI：10.1023/A:1013820915190

• East Asia
• LRT model
• outflow
• sulfur oxides
• wet deposition

A numerical analysis of modeled long-range transport of sulfur oxides in the continental areas of East Asia with some verification was introduced. Although several modeling studies on acidic deposition in East Asia have been done, only few cases have verified in wide areas. In this study, the model calculation has been compared with the monthly averaged sulfur concentration in precipitation observed at 69 locations widely covering China from July 1992 through January 1993. Additionally, the. atmospheric SO2 concentration along the east coast of the continent was also compared with the observation in May 1993, and found to be reasonably consistent. Basing on these comparisons, the budget of sulfur oxides in China, especially about the outflow from the east coast to the sea areas was examined considering the seasonal variation of distribution of wet deposition and the pathways of atmospheric sulfur oxides. The seasonal variation of these indices was found to have large difference between the north and the south of 35 degreesN. The outflow from the east coast increased remarkably in winter due to the decrease of deposition in the inland areas along the transport pathways.

• 出版日期2001-9
• 单位中国科学院大气物理研究所