A NUMERICAL SIMULATION OF THE DISTRIBUTION OF ACID PRECIPITATION IN CHONGQING AREA OF CHINA

Lei Xiao’en; Jia Xinyuan; Yuan Suzhen; Luo Qiren; Chen Silong; Xu Yu

doi:10.1007/BF02663601

Impact Factor: 5.8

Volume 4 Issue 3

Jul. 1987

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1987 > 4(3): 313-322

A NUMERICAL SIMULATION OF THE DISTRIBUTION OF ACID PRECIPITATION IN CHONGQING AREA OF CHINA

1.
Institute of Atmospheric Physics, Academia Sinica, Beijing,Institute of Atmospheric Physics, Academia Sinica, Beijing,Institute of Atmospheric Physics, Academia Sinica, Beijing,Chongqing Institute of Environmental Science and Monitoring,Chongqing Institute of Environmental Science and Monitoring,Chongqing Institute of Environmental Science and Monitoring

doi: 10.1007/BF02663601

Abstract
References
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Abstract:
A numerical model for the study of the regional acid precipitation is developed. The model consists of five parts: the distribution patterns of SO2 concentration, the mesoscale flow fields, the parameteriza-tion of SO2, transformation into SO4=, the parameterization of precipitation scavenging process, and the relationship between SO2 content in precipitation and ground level concentration of SO2 in the air. The distribution of SO2, SO2= and pH for all precipitations in Chongqing area during the period of July to October 1982 are simulated with the model. A comparison of the simulated results with experimental data shows that high SO2 concentration centres correspond to low pH centres. The source of the acid rain in Chongqing area is local air pollution which is due to the lower effective stack height, low wind velocity in the area, basin topography, and the use of coal with high sulphur content. The mechanism for the formation of the acid precipitation here may be different from that in the United States of America and the Western Europe, where acid rain appears in the area far from pollution source.
References

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Manuscript History

Manuscript received: 10 July 1987

Manuscript revised: 10 July 1987

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

A NUMERICAL SIMULATION OF THE DISTRIBUTION OF ACID PRECIPITATION IN CHONGQING AREA OF CHINA

1. Institute of Atmospheric Physics, Academia Sinica, Beijing,Institute of Atmospheric Physics, Academia Sinica, Beijing,Institute of Atmospheric Physics, Academia Sinica, Beijing,Chongqing Institute of Environmental Science and Monitoring,Chongqing Institute of Environmental Science and Monitoring,Chongqing Institute of Environmental Science and Monitoring

Manuscript received: 1987-07-10
Manuscript revised: 1987-07-10

Abstract: A numerical model for the study of the regional acid precipitation is developed. The model consists of five parts: the distribution patterns of SO2 concentration, the mesoscale flow fields, the parameteriza-tion of SO2, transformation into SO4=, the parameterization of precipitation scavenging process, and the relationship between SO2 content in precipitation and ground level concentration of SO2 in the air. The distribution of SO2, SO2= and pH for all precipitations in Chongqing area during the period of July to October 1982 are simulated with the model. A comparison of the simulated results with experimental data shows that high SO2 concentration centres correspond to low pH centres. The source of the acid rain in Chongqing area is local air pollution which is due to the lower effective stack height, low wind velocity in the area, basin topography, and the use of coal with high sulphur content. The mechanism for the formation of the acid precipitation here may be different from that in the United States of America and the Western Europe, where acid rain appears in the area far from pollution source.