湖南省长株潭城市群臭氧分布特征研究及分析

利用长沙、株洲、湘潭城市群2015-2019年臭氧质量日浓度资料及同期气象要素数据,对典型城市群臭氧(O3)浓度变化特征及其与气象条件之间关系进行研究.结果表明:2015-2019年间长株潭城市群臭氧浓度呈上升趋势,年平均浓度增幅和臭氧超标率由高到低的顺序为长沙>湘潭>株洲;臭氧浓度在夏季最高,而月变化特征呈现双峰结构...

Distribution Characteristics of Ozone in Chang-Zhu-Tan Urban Agglomeration of Hunan Province

Based on the daily ozone concentration data of Changsha,Zhuzhou and Xiangtan Urban Agglomerations from 2015 to 2019 and meteorological data of the same period,the variation characteristics of ozone concentration in typical urban agglomerations and the relationship between ozone concentration and meteorological conditions are studied.The results show that:from 2015 to 2019,the ozone concentration of Changsha Zhuzhou Xiangtan Urban Agglomeration shows an upward trend,with the average annual concentration increase and ozone exceeding rate increasing from high to low in order of Changsha>Xiangtan>Zhuzhou>.The changing characteristics show the structure of Twin Peaks,with the sub-peaks and peaks occurring in May and September,and the ozone high-value zone rising month by month between May and September;the highest ozone concentration is in summer.Average temperature and relative humidity have the highest correlation with ozone change,while precipitation and surface wind speed are weakly correlated.