气象2017，Vol.43Issue(7)：804-812,9.DOI:10.7519/j.issn.1000-0526.2017.07.004
2016年1月我国中东部一次大气污染物传输过程分析
Transport of PM2.5 of the Haze Pollution Episode over Mid-Eastern China in January 2016
摘要
Abstract
A haze pollution event hit mid-eastern China in January 2016.During the haze episode,concentrations of PM2.5 in Wuhan and Nanjing increased by three times in several hours.The meteorological observations and simulated data from an air quality model (CAMx) were used to analyze the transport ofPM2.5 in this haze episode.The observations revealed that there were northerly winds in 1000-950 hPa and stable layer in the frontal zone above the two cities during the pollution period.Northerly winds in 1000 950 hPa transported pollutants to the cities,and stable layer in the frontal zone suppressed vertical diffusion of pollutants on the surface.Thus,the transport and the stable layer jointly caused the rapid in crease of PM2.5 concentrations in the two cities.The pollution was cleared after the main cold air arrived,especially after the weak wind zone in the frontal zone moved.The simulation data showed that local contribution to the two cities in the severe pollution progress was less than the average value from 15 to 19 January.The transport contribution to PM2.5 in Wuhan and Nanjing was 51％ and 58％,respectively.The transport contribution rate was not very certain,because the model underestimated the transport of PM2.5.关键词
污染传输/冷空气/PM2.5来源Key words
transport of pollutants/cold air/source-apportionment of PM2.5分类
天文与地球科学引用本文复制引用
王继康,花丛,桂海林,张恒德..2016年1月我国中东部一次大气污染物传输过程分析[J].气象,2017,43(7):804-812,9.基金项目
气象预报预测业务与科研结合专项(CMAHX20160601)、公益性行业(环保)科研专项(201509001)和国家重点研发计划项目(2016YFC0203301)共同资助 （CMAHX20160601）
