CAJ | 학술논문

提利用FNL资料、污染物颗粒浓度资料以及常规气象资料对2013年1月12—16日江苏地区的连续性雾-霾天气过程的环流形势、地面气象要素特征、大气边界层结构及大气污染状况等进行了分析。结果表明：高空形势变化平稳、中低层的暖平流配合稳定少动的地面气压场为雾-霾天气的发生提供了有利的环流形势；持续变化较小的气压梯度和较低的风速以及相对湿度的增大和PM2．5、PM10的浓度的变化为雾-霾形成和发展提供了条件；雾-霾期间低层都存在不同程度的逆温现象，混合层高度与AQI呈反相关关系，当混合层高度越低，AQI就越高，污染就越严重，能见度就越差；相对湿度的升高和P M2．5在污染物颗粒中的富集，是导致能见度下降和持续污染的首要原因，而强冷空气带来的大风降温是污染物颗粒被快速清除的重要动力机制；影响南京的污染物来源为：黄海、安徽地区、北方污染物的输送和本地的局地污染。
제이용FNL자료、오염물과립농도자료이급상규기상자료대2013년1월12—16일강소지구적련속성무-매천기과정적배류형세、지면기상요소특정、대기변계층결구급대기오염상황등진행료분석。결과표명：고공형세변화평은、중저층적난평류배합은정소동적지면기압장위무-매천기적발생제공료유리적배류형세；지속변화교소적기압제도화교저적풍속이급상대습도적증대화PM2．5、PM10적농도적변화위무-매형성화발전제공료조건；무-매기간저층도존재불동정도적역온현상，혼합층고도여AQI정반상관관계，당혼합층고도월저，AQI취월고，오염취월엄중，능견도취월차；상대습도적승고화P M2．5재오염물과립중적부집，시도치능견도하강화지속오염적수요원인，이강랭공기대래적대풍강온시오염물과립피쾌속청제적중요동력궤제；영향남경적오염물래원위：황해、안휘지구、북방오염물적수송화본지적국지오염。
Circulation situation,characteristics of surface meteorological elements,structure of atmospheric boundary layer and air pollution status of the long-lasting fog-haze event in Jiangsu Province during 12-16 January 2013 are analyzed by using the FNL analysis data,data on pollutant particle concentration and conventional meteorological data.The results indicate that steady upper air circulation situation,warm ad-vection of middle-low layers and stable distribution of surface pressure field are favorable for haze to occur in terms of circulation features.Continuous and slight changes of pressure gradient,slow wind speed,in-crease of relative humidity as well as the PM2.5 and PM10 concentrations are beneficial to the formation and development of haze.Temperature inversion is observed in low layers during the haze event.The height of mixed layer is inversely correlated to AQI.Lower mixed layer height corresponds with higher AQI,more serious pollution and lower visibility.The increase of relative humidity and enrichment of PM2.5 concentra-tion in contaminant particles lead to the decrease of visibility and continuous pollution while strong wind and low temperature caused by severe cold air is responsible for the important dynamic mechanism of quick erasion of particulate matter.The pollution of Nanjing mainly originates from the Yellow Sea,Anhui Province,and the pollution from the north and local atmospheric pollution.