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中国科学院大学学报 ›› 2014, Vol. 31 ›› Issue (3): 380-388.DOI: 10.7523/j.issn.2095-6134.2014.03.013

• 大气颗粒物与空气污染专刊 • 上一篇    下一篇

2011年冬季长江三角洲气态污染物的模拟分析

高丽娜1,2, 张仁健1, 韩志伟1, 符淙斌1,3, 颜鹏4, 洪盛茂5, 焦荔5   

  1. 1. 中国科学院大气物理研究所东亚区域气候-环境重点实验室, 北京 100029;
    2. 中国科学院大学, 北京 100049;
    3. 南京大学气候与全球变化研究院, 南京 210032;
    4. 中国气象科学研究院, 北京 100081;
    5. 杭州市环境监测中心站, 杭州 310007
  • 收稿日期:2013-02-21 修回日期:2013-05-23 发布日期:2014-05-15
  • 通讯作者: 高丽娜,E-mail:gaolina_iap@163.com
  • 基金资助:

    国家重点基础研究发展规划项目(2010CB428503)、国家自然科学基金(41175131)、科技部国际科技合作与交流项目(2010DFA22770)和杭州市重大科技创新项目(20092113A05)资助

Modeling study of gaseous pollutants over Yangtze River Delta in winter of 2011

GAO Lina1,2, ZHANG Renjian1, HAN Zhiwei1, FU Congbin1,3, YAN Peng4, HONG Shengmao5, JIAO Li5   

  1. 1. Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Institute for Climate and Global Change Research, Nanjing University, Nanjing 210032, China;
    4. Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing 100081, China;
    5. Environmental Monitoring Center Station of Hangzhou City, Hangzhou 310007, China
  • Received:2013-02-21 Revised:2013-05-23 Published:2014-05-15

摘要:

利用MM5-CMAQ模式系统,对2011年12月8—16日长江三角洲一次大气污染过程进行模拟.在NOx排放源影响下,上海和杭州是NO2高值区.杭州西南部,安徽、浙江和江西3省交界处O3质量浓度较高,在40ppb以上.受SO2排放源影响,上海和南京的SO2浓度较高,高值中心在50ppb以上.过程分析结果表明,污染扩散过程减弱时,平流输入和排放的SO2、排放和化学转化的NO2逐渐累积;污染过程出现时,夜间排放的NO也逐渐累积,NO2的化学转化过程变慢,O3质量浓度下降.

关键词: CMAQ, 气态污染物, 过程分析

Abstract:

An air pollution episode over the Yangtze River Delta (YRD) during the period from 8 to 16 Dec 2011 was investigated using MM5-CMAQ model system. There were high NO2 concentrations in Shanghai and Hangzhou. Ozone concentrations were greater than 40 ppb in the southeast of Hangzhou and on the borders between Anhui, Zhejiang, and Jiangxi provinces. The SO2 concentrations in Shanghai and Nanjing were high. The pollution episode occurred when SO2 from emission and NO2 from chemical and emission processes accumulated under weak diffusion conditions. NO also accumulated consuming ozone and resulting in a decrease of O3 concentration.

Key words: CMAQ, gaseous pollutants, process analysis

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