• CN 62-1175/P
• ISSN 1006-7639
• 双月刊
• 中国科技核心期刊
• 中国学术期刊综合评价数据库统计源期刊
• 中文科技期刊数据库收录期刊

• 论文 •

### 一次重污染过程及其边界层气象特征量分析

1. 1. 河北省气象服务中心，河北石家庄050021；2. 河北省环境气象中心，河北石家庄050021
• 出版日期:2015-10-30 发布日期:2015-10-30
• 作者简介:李二杰（1978-），男，安徽砀山，高级工程师，主要从事环境气象研究.E-mail：84845357@qq.com
• 基金资助:

河北省气象局科研开发面上项目(14ky14)“河北省重污染天气过程气象垂直物理量特征指标研究”资助

### Analysis of Boundary Layer Meteorology Characteristic Parameters During a Continuous Heavy Pollution Event

1. 1. Hebei Provincial Meteorological Service Center, Shijiazhuang 050021, China;
2. Hebei Provincial Environmental Meteorology Center, Shijiazhuang 050021, China‘
• Online:2015-10-30 Published:2015-10-30

Abstract:

A large scale heavy pollution process occurred from December 14 to 25 in 2013 in the middle and eastern China. In this paper the pollution forming source was analyzed by using the Hysplit model, that is, air trajectory reverse inference. According to radiosonde data and ground observation data in the central pollution region Xingtai, meteorology characteristic parameters were calculated including atmospheric stability, mixing layer height, inversion and so on, and relationship has been analyzed between mixing layer height, relative humidity, visibility and PM2.5 concentration. The results show that local pollutant emission was main pollution forming source during the process, and atmospheric stratification was relatively stable over middle and southern regions of Hebei Province, the deeper thickness (average value was 230 m) and stronger intensity (average value was 2.34 ℃/100 m) of inversion layer, as well as lower mixing layer height (average value was 618 m) were key factors influencing pollution level. There was negative correlation between concentration of PM2.5 and mixing layer height, and a highly negative correlation (R=-0.77) existed between that and logarithm visibility, and for relative humidity, it showed a weakly positive correlation (R=0.62).

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