| 平流层臭氧深度侵入对典型城区的影响过程分析 |
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| 引用本文： | 杨晓钰,马鹏飞,边萌,孙凤娟,孙军,刘建军,王玉,张建辉,赵少华.平流层臭氧深度侵入对典型城区的影响过程分析[J].中国环境监测,2023,39(4):79-87. |
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| 作者姓名： | 杨晓钰 马鹏飞 边萌 孙凤娟 孙军 刘建军 王玉 张建辉 赵少华 |
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| 作者单位： | 山东省济南生态环境监测中心, 山东 济南 250101;生态环境部卫星环境应用中心, 国家环境保护卫星遥感重点实验室, 北京 100094 |
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| 基金项目： | 国家重点研发计划(2022YFC3700104,2021YFE0117100,20211668253,B0301) |
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| 摘 要： | 中纬度平流层臭氧深度侵入是造成对流层至近地面臭氧浓度突增的原因之一。筛选春夏季臭氧浓度升高时段的高分辨率大气再分析数据ERA5,以位涡值的下沉趋势分析了对流层顶折叠位置及变化过程;以AIRS数据反演了臭氧浓度、一氧化碳浓度和相对湿度的垂直廓线,并估计了其分布及相关性;以近地表污染物浓度变化、HYSPLIT模型后向轨迹分析结果证实了臭氧侵入气团的运移轨迹和局地效应;通过激光雷达监测结果观测臭氧垂直浓度分布,确定了臭氧浓度最大值所处高度,判定了受影响近地点的浓度升高时刻;以边界层高度变化、气象条件分析结果及当地与周边城市地面监测数据的逐小时变化情况等综合信息,进行了区域确认和近地面影响判定。通过以上数值综合分析,对城市地区受平流层臭氧深度侵入影响的过程和具体时间进行了详细再现,可为排除非人为排放因素导致的近地表臭氧浓度增加提供回溯分析,为臭氧污染防控决策提供依据。
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| 关 键 词： | 平流层臭氧侵入 位涡 臭氧廓线 HYSPLIT模型 臭氧地面监测 臭氧激光雷达 |
| 收稿时间： | 2022/1/21 0:00:00 |
| 修稿时间： | 2022/4/28 0:00:00 |
Analysis on the Deep Intrusion Process of Stratospheric Ozone into the Troposphere over the Typical Urban Area |
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| YANG Xiaoyu,MA Pengfei,BIAN Meng,SUN Fengjuan,SUN Jun,LIU Jianjun,WANG Yu,ZHANG Jianhui,ZHAO Shaohua.Analysis on the Deep Intrusion Process of Stratospheric Ozone into the Troposphere over the Typical Urban Area[J].Environmental Monitoring in China,2023,39(4):79-87. |
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| Authors: | YANG Xiaoyu MA Pengfei BIAN Meng SUN Fengjuan SUN Jun LIU Jianjun WANG Yu ZHANG Jianhui ZHAO Shaohua |
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| Affiliation: | Jinan Environmental Monitoring Center of Shandong Province, Jinan 250101, China;State Environmental Protection Key Laboratory of Satellite Remote Sensing, Satellite Application Center for Ecology and Environment, MEE, Beijing 100094, China |
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| Abstract: | The deep instrusion of mid-latitude stratospheric ozone is one of the factors affecting the troposphere and near-surface ozone surges. In this paper,we screened the high-resolution atmospheric reanalysis data ERA5 during the period of ozone increase in spring and summer,and investigated the tropospheric folding position and changing process based on the sinking trend of potential vorticity values. The concentration distribution and correlation of ozone,carbon monoxide and relative humidity were estimated from the vertical profiles of each retrieved from AIRS data. The changes of near-surface pollution concentration and backward trajectory results of the HYSPLIT model reconfirmed the transport trajectory and local effects of ozone intrusion into the air mass. The height of the maximum ozone value was determined by observing the vertical concentration distribution of ozone through the monitoring results of ozone lidar,and the time when the perigee occurred with the greatest change was determined. Regional confirmation and near-surface impact judgment were carried out comprehensively based on the change of boundary layer height,the analysis of meteorological conditions,and the hourly changes of ground monitoring data in local and surrounding cities. The above comprehensive numerical analysis reproduced the process and specific time of the deep stratospheric ozone intrusion in urban areas in detail. It provided a retrospective analysis for excluding the increase of near surface ozone concentration caused by non-anthropogenic emissions,which could be a basis for decision making on ozone pollution prevention and control. |
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| Keywords: | stratospheric ozone intrusion potential vorticity ozone profile HYSPLIT model ozone ground monitoring ozone lidar |
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