南京1月不同气象条件对大气环境影响比对研究  

Comparative Study on How Different Meteorological Conditions Affect Atmospheric Environment in January in Nanjing

作　　者：崔玉航 汤莉莉[1,2] 潘良宝[1,2] 李健军[3] 蒋磊[1] 张运江[1] 陆维青 高愈霄[3] CUI Yuhang TANG Lili PAN Liangbao LI Jianjun JIANG Lei ZHANG Yunjiang LU Weiqing GAO Yuxiao(Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing 210044,China Jiangsu Environmental Monitoring Center, Nanjing 210036,China National Environmental Monitoring Centre, Beijing 100029, China)

机构地区：[1]南京信息工程大学江苏省大气环境与装备技术协同创新中心,江苏南京210044 [2]江苏省环境监测中心,江苏南京210036 [3]中国环境监测总站,北京100029

出　　处：《环境科学与技术》2017年第2期44-52,共9页Environmental Science & Technology

基　　金：国家自然科学基金重大研究计划(D0512/91544231);江苏省环保科研课题(2015017);江苏省环境监测科研基金项目(1201)

摘　　要：随着经济的快速发展和城市群的迅速增加,长三角地区大气污染愈发严重。该研究利用大气污染和卫星观测资料,并结合气象资料,对长三角西部典型城市南京两年1月份的大气污染特征和典型污染日进行比对分析。结果表明,风向、风速、相对湿度等气象条件是影响2 a重污染日频次不同的重要原因;除了冷空气南下型,冷锋前型、冷高压后部型、冷高压控制型、均压场型和倒槽暖区型均有利于重污染天气的形成。相对于2014年1月,2013年受冷高压影响更加深入,在冷高压控制下达到的严重污染日更多。高空大气环流形势、地面风场、近地面垂直速度ω、逆温层高度与厚度的不同,以及近地面是否有湿层出现,均是造成不同污染过程程度差异的主要原因;冬季1月污染爆发时,混合层高度与PM_(2.5)的质量浓度呈现负相关关系。With the rapid economic development and the increase of urban agglomerations,air pollution in Yangtze River Delta region is becoming a widespread concern.The research uses air pollution data, satellite observation data and meteorological data to compare how different conditons affect air pollution in winter in Nanjing. Results show that wind direction,wind speed and relative humidity all affect the frequency of heavy polluted days in 2013 and 2014. Disregarding southbound cold air,cold fronts,cold high pressure systems,uniform pressure fields and inverted trough low pressure systems can all bring heavy pollution,cold high pressure systems more heavily affect the atmosphere in January of 2013.High altitude atmospheric circulation,surface winds,vertical velocity,height and thickness of thermal inversion layer can all affect pollution level;on the onset of heavy air pollution in winter,the height of mixing layer has negative correlations with mass concentration of PM（2.5）.

关 键 词：南京 1月 气象条件 大气污染 比对研究 

分 类 号：X16[环境科学与工程—环境科学]