主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2019, Vol. 35 ›› Issue (6): 46-54.doi: 10.3969/j.issn.1673-503X.2019.06.007

• 论文 • 上一篇    

2017年上海臭氧污染气象条件分析及臭氧污染天气分型研究

余钟奇1,2, 马井会1,2, 毛卓成1,2, 曹钰1,2, 瞿元昊1,2, 许建明1,2   

  1. 1. 长三角环境气象预报预警中心, 上海 200030;
    2. 上海市气象与健康重点实验室, 上海 200030
  • 收稿日期:2018-08-14 修回日期:2018-11-13 发布日期:2019-12-25
  • 作者简介:余钟奇,男,1989年生,工程师,主要从事环境气象研究,E-mail:yuzhongqi0429@163.com。
  • 基金资助:
    国家重点研发计划项目(2018YFC0213801)、上海市科委科研计划项目(16DZ120460)、上海气象局面上科研项目(MS201808)、上海气象局启明星科研项目(QM201715)、气象预报业务关键技术发展专项(YBGJXM(2018)06)共同资助。

Study on the meteorological conditions and synoptic classifications of O3 pollution in Shanghai in 2017

YU Zhong-qi1,2, MA Jing-hui1,2, MAO Zhuo-cheng1,2, CAO Yu1,2, QU Yuan-hao1,2, XU Jian-ming1,2   

  1. 1. Yangtze River Delta Center for Environmental Meteorology Prediction and Warning, Shanghai 200030, China;
    2. Key Laboratory of Meteorology and Health, Shanghai Meteorological Service, Shanghai 200030, China
  • Received:2018-08-14 Revised:2018-11-13 Published:2019-12-25

摘要: 根据2016-2017年上海空气污染物和相关气象要素数据,分析上海2017年O3变化特征以及气象影响因素,并对造成O3污染的天气系统进行主观分型。结果表明:2017年上海市空气质量优良天数为275 d,占全年天数的75.3%,O3-8h污染天数为55 d。上海市O3-8h年均浓度115 μg·m-3,同比增幅超过10%,为2013年以来的最高值,主要体现为夏半年O3浓度的上升。与2016年相比,2017年夏半年西太平洋副热带高压偏西偏强,上海地区风速风向、温度、水汽、光照、辐射条件均有利于O3浓度上升。造成2017年高浓度O3污染主要有4种天气类型:副热带高压控制型(SH)、地面高压型(G)、均压场型(J)和低压型(D)。其中副热带高压控制型是典型的O3-8h污染天气型,占总污染日数的29.1%,且污染程度较重;低压型出现次数较少;地面高压型的臭氧平均污染程度最弱。

关键词: 臭氧污染, 气象条件, 天气分型

Abstract: Air quality data and relevant meteorological data were used in this paper to analyze the variations of ozone and the meteorology influencing factors in Shanghai in 2017.Studies on subjective synoptic weather classifications on ozone were also conducted.The results showed that there were 275 non-pollution days accounting for 75.3% of the whole year of 2017.There were 55 O3-8h pollution days.The average O3-8h concentration was 115 μg·m-3 in 2017.The year-on-year growth was more than 10%.It has reached the highest concentration since 2013.The increase in ozone concentration in 2017 was mainly due to the increase in ozone concentration in the summer half-year.Compared with the summer half-year of 2016,the conditions of wind,temperature,water vapor,illumination,and radiation were all helpful to increase the ozone concentration in the summer half-year of 2017,which was under the background of the abnormally western and strengthened western Pacific subtropical high.The synoptic systems affecting O3 pollution are classified into four patterns,including subtropical high (SH),surface high (G),equalized pressure (J) and low pressure (D).The subtropical high pattern is the most predominant and typical ozone pollution pattern,accounting for 29.1% of the total.It shows high level pollution.The low-pressure pattern appears with the least frequency,and the surface high pattern shows the lowest level of pollution.

Key words: Ozone pollution, Meteorological conditions, Synoptic weather classification

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