沿海天气系统对中国大气臭氧的影响研究概述

The Impact of Typical Coastal Weather Systems on Atmospheric Ozone in China

目前中国臭氧(O_(3))污染问题日益严重,在沿海发达城市群中尤为突出,已成为影响空气质量达标率的关键因素。沿海地区臭氧的生成和扩散受天气条件影响显著,文章基于文献调研,对近年来中国沿海典型天气系统的臭氧污染贡献研究进行了总结,主要从季风、台风、海陆风3个方面开展综合分析,归纳了该领域的主要研究方法,概括了中国沿海典型天气系统对对流层臭氧生消和迁移转化的主要影响机制:季风主要通过大尺度环流影响臭氧背景浓度;台风对臭氧的影响随行进过程而改变;海陆风通过影响局地环流和边界层高度而控制臭氧扩散。基于该文综述分析,旨在为中国沿海臭氧污染成因分析与防控决策制定提供一定的科学参考。

Recently the pollution of ozone(O_(3))is becoming more and more serious in China,especially in the developed coastal cities,where ozone pollution has become a key factor affecting local air quality.The generation and diffusion of ozone in coastal areas are significantly influenced by weather conditions.Based on literature review,this paper summarizes the major research methods and results concerning the contribution of typical coastal weather systems to the ozone pollution in China in recent years.The results showed that(1)the monsoon could affects the ozone background concentration mainly through largescale circulation;(2)the effect of typhoon on ozone varied with its moving process;(3)sea and land breeze controls ozone diffusion by affecting local circulation and boundary layer height.The findings of this literature review could provide a useful reference for the cause analysis and prevention and control of coastal ozone pollution in China.