第2代大气污染物排放源强反演模式SSIM2及其在城市规划大气环境影响评价中的应用  

Second-Generation Source-Strength Inversed Model and Its Application in Atmospheric Environmental Impact Assessment for Urban Planning

作　　者：朱蓉[1] 徐大海[2] 赵珊珊[1] 

机构地区：[1]国家气候中心 [2]中国气象科学研究院,北京100081

出　　处：《气象科技》2009年第6期641-645,I0011,共6页Meteorological Science and Technology

摘　　要：建立了第2代大气污染物排放源强反演模式(SSIM2),SSIM2由MM5模式提供气象背景场,先在目标浓度分布的基础上,应用确定大气容量A值法得到污染源强分布的初估场,然后应用多箱格大气平流扩散模式,反复计算污染浓度分布和订正污染源强估算场,直到计算范围内所有网格点上的浓度与目标浓度的偏差小于5%时,即可得到合适的大气污染源强分布。采用山西长治地区大气污染源清单对模式的验证表明,反演的大气污染源强分布与真实源强分布非常接近。SSIM2在天津市和苏州市的城市规划大气环境影响评价中,为城市新建开发区和城市污染源的规划布局提供了科学依据。The Second-generation Source-strength Inversed Model 2 （SSIM2） is introduced, which depends on the meteorological background field supplied by MMS, and estimates the initial distribution of air pollutant sources by using the A-value method of atmospheric environmental capacity, then calculates the concentration of air pollutants, and corrects the estimated distribution of air pollutant sources repeatedly until the distribution satisfies that the deviation between simulated and target concentrations is less than 5 percent on each grid point of the model domain. The verification by the air pollutant emission inventory of Changzhi in Shanxi province shows that the inversed distribution of air pollutants is much closer to the real one. The application of SSIM2 to the atmospheric environmental impact assessment for the urban planning of Tianjing and Suzhou shows that SSIM2 can provide a scientific basis for the allocation plan of air pollutant sources and the construction planning of new urban development zones.

关 键 词：污染源强反演模式 多箱格大气平流扩散模式 城市规划 大气环境影响评价 

分 类 号：X823[环境科学与工程—环境工程] X51