2006～2014年南京都市圈对流层NO_2时空变化特征及污染源分析  

Analysis on Spatio-Temporal Characteristics and Pollution Sources of NO_2 in Nanjing Metropolitan Area During 2006～2014

作　　者：高一博[1] 张鑫[1] 陶圣荣[1] 许丹丹[1] 张洪海[1] 麻金继[1] 

机构地区：[1]安徽师范大学国土资源与旅游学院,安徽芜湖241000

出　　处：《大气与环境光学学报》2016年第3期182-190,共9页Journal of Atmospheric and Environmental Optics

基　　金：国家自然科学基金;41271377~~

摘　　要：基于OMI（Ozone Monitoring Instrument,OMI）卫星传感器监测得到的2006年1月~2014年12月南京都市圈对流层N02柱浓度数据和土地利用类型数据,利用余弦曲线函数和HYSPLIT后向轨迹模型,分析了研究区对流层N02时空分布特征以及污染物的来源.研究发现,2006~2014年南京都市圈对流层N02柱浓度呈现出逐年增长的趋势和冬高夏低的季节变化特征;研究区对流层NO_2污染物主要来自两个方面：大气气流的输送作用影响了研究区对流层N02季节性变化;不同的土地利用类型影响了南京都市圈的对流层N02柱浓度.The spatio-temporal characteristics and pollution sources of NO2 in Nanjing metropolitan area are analyzed by using cosine curve function and HYSPLIT model of back trajectory analysis, on the basis of NO2 column densities data of the Ozone Monitoring Instrument （OMI） from January 2006 to December 2014 and land use type data. The results indicate that tropospheric NO2 column densities in study area increased distinctly year by year from 2006 to 2014 and showed obvious seasonal variation, i.e. highest in winter while lowest in summer. There are mainly two aspects of tropospheric NO2 contaminant sources in study area. The one is the effect of atmospheric transport affecting the seasonal variation of NO2, and the other is that different land use types have great impact on column density of NO2.

关 键 词：OMI 对流层NO_2 HYSPLIT模型 时空变化 

分 类 号：X51[环境科学与工程—环境工程]