利用观测的气象要素和细颗粒物（即PM2.5）浓度资料，并结合中尺度数值天气模式WRF（Weather Research and Forecasting Model），对2013年1月北京地区雾霾污染期间天气条件和边界层气象特征进行了分析。模拟与观测对比表明，WRF模式可以较好地反映北京—天津—河北地区地面和高空主要气象要素的时空分布。对1月10～14日、27～31日两次重雾霾天气的分析表明，雾霾的形成是高浓度的大气颗粒物和特殊的气象条件共同作用的结果。小风或静风、稳定的大气层结，使大气扩散能力减弱，造成污染物堆积，偏南气流将周边污染物和水汽输送到北京，不仅增加了污染物浓度，而且有利于气溶胶吸湿增长，消光增强，使能见度下降，进而形成雾霾。
By using observations of meteorological variables and PM2.5 concentration, together with the meso-scale numerical Weather Research and Forecasting (WRF) model, the weather conditions and boundary layer meteorological features were investigated during haze periods in Beijing in January 2013. The comparison with observations shows that WRF is able to reasonably reproduce the spatial and temporal distributions of the meteorological variables. Analysis of the heaviest haze periods, which occurred during 10-14 January and 27-31 January, shows that meteorological factors and high concentrations of atmospheric particulates are both responsible for the haze pollution. Small or calm wind and steady atmospheric stratification led to a decrease in atmospheric diffusivity and accumulation of pollutants. In addition, the southerly wind carried surrounding pollutants and water vapor to Beijing, which not only increased pollutant concentrations, but also favored aerosol hygroscopic growth, and extinction increase, which consequently led to haze formation and visibility decrease.
刘瑞婷,韩志伟,李嘉伟.2014.北京冬季雾霾事件的气象特征分析[J].气候与环境研究,19(2):164-172. LIU Ruiting, HAN Zhiwei, LI Jiawei.2014. Analysis of Meteorological Characteristics during Winter Haze Events in Beijing[J]. Climatic and Environmental Research (in Chinese],19(2):164-172.复制