主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2011, Vol. 27 ›› Issue (6): 28-34.doi:

• 论文 • 上一篇    下一篇

2007年冬季沈阳典型大气污染源PM10排放模拟

邹旭东1 田晓波2 杨洪斌1 汪宏宇1 刘玉彻1 张云海1   

  1. 1.中国气象局沈阳大气环境研究所,辽宁 沈阳 110016；2.辽宁省气象信息与技术保障中心,辽宁 沈阳 110015
  • 出版日期:2011-12-30 发布日期:2011-12-30

Simulation analysis of PM10 emission from typically atmospheric pollution sources in winter of 2007 over Shenyang

ZOU Xu-dong1 TIAN Xiao-bo2 YANG Hong-bin1 WANG Hong-yu1 LIU Yu-che1 ZHANG Yun-hai1   

  1. 1. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110016, China; 2. Liaoning Meteorological Information and Technological Support Center, Shenyang 110015, China
  • Online:2011-12-30 Published:2011-12-30

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摘要： 选取沈阳市区9个典型的大气污染源冬季的PM10排放浓度资料，利用MM5耦合CALPUFF对2007年12月至2008年2月沈阳城市区域气象场和排放PM10浓度分布做月平均数值模拟。结果表明：冬季沈阳地区受高压控制，北风较强，并经过增强、减弱的过程，多呈现对大气污染物扩散不利的天气形势。高空为偏西风且风速较大时，地面和高空有明显的风向和风速的切变，切变有增强和减弱的变化。2007年冬季沈阳市区域月平均大气污染最严重的是2月，污染物分布主要集中在南部、东南部地区，南部地区大气污染最为严重。PM10浓度分布的范围与风场、地形有直接的关系。地势平坦、风速大时，污染物扩散范围大，污染物浓度小；地势不平、风速小时，污染物扩散范围小，污染物浓度大。

关键词: 大气污染, CALPUFF, 数值模拟, 气象场, 沈阳, 冬季

Abstract: According to PM10 concentration data from 9 typically atmospheric pollution sources in the urban area of Shenyang from December 2007 to February 2008, the monthly averages of meteorological fields and PM10 concentration distributions were simulated using MM5 model coupled with CALPUFF model. The results indicate that the high-pressure controls Shenyang region in winter and the north wind is strong, and the weather situation is usually unfavorable to pollutants diffusion after they are strengthened and weakened. Shear of wind direction and wind speed is obvious in the ground and in high level when it is the westerly wind in high level and wind speed is large, and shear could be strengthened or reduced. The most serious air pollution occurs in February 2007 over the Shenyang city. The pollutants mainly distributes in the south and southeast of Shenyang, especially in the south. The distribution ranges of PM10 concentrations are related to wind filed and topography. The diffusion ranges of pollutants are large and the concentrations of pollutants are small when topography is flat and wind speed is large, and vise versa.

Key words: Air pollution, CALPUFF model, Numerical simulation, Meteorological field, Shenyang, Winter