| 北京冬春和夏初季节大气O3浓度的垂直分布特征 |
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| 引用本文： | 谷雨,高庆先,马占云,张艳艳,刘婷,郑有飞.北京冬春和夏初季节大气O3浓度的垂直分布特征[J].环境科学研究,2018,31(3):457-464. |
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| 作者姓名： | 谷雨 高庆先 马占云 张艳艳 刘婷 郑有飞 |
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| 作者单位： | 1.南京信息工程大学环境科学与工程学院, 江苏 南京 210044 |
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| 基金项目： | 国家环境保护公益性行业科研专项（No.20150904，20150940）；首都蓝天行动培育项目（No.Z17110000617002） |
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| 摘 要： | 为探究北京地区不同季节大气O3浓度垂直分布特征，于2010年12月1日—2011年3月31日（冬春季）和2011年5月7日—6月9日（夏初），在北京北部地区的中国环境科学研究院内，利用第三代移动式大气环境激光雷达系统，对$\varphi $（SO2）、$\varphi $（NO2）以及$\varphi $（O3）和气溶胶后向散射系数垂直方向和垂直剖面进行试验观测，并结合天气要素的变化进行了分析研究.结果表明:①$\varphi $（O3）存在明显的季节变化，表现为夏季>春季>冬季，同时晴天、微风、逆温条件等气象背景是O3污染过程出现的主要气象因素，在微风和南风的情况下，会出现高$\varphi $（O3）带，在北风影响情况下，$\varphi $（O3）相对较低，雨水冲洗的作用对$\varphi $（O3）分布也有明显的影响；②$\varphi $（O3）的日变化曲线呈单峰单谷型，$\varphi $（O3）峰值一般出现在14:00—18:00之间，谷值则出现在22:00—翌日09:00之间；③$\varphi $（O3）垂直分布呈现单峰、双峰、多峰型分布等多种垂直分布特征，10 km以上高空这3种分布特征均有出现，但是在5 km以下的近地面$\varphi $（O3）垂直和斜程分布基本呈现多峰型，斜程方向上$\varphi $（O3）的高低与下垫面及其所排放的O3前体物有密切的关系；④$\varphi $（O3）垂直分布呈现一定的不均匀性，其数值范围浮动比较小，最大值之间相差30×10-9.研究显示，$\varphi $（O3）垂直规律主要表现出两种分布特征，一种是在3~5 km处有高浓度的堆积区，另一种则没有明显高值堆积区.
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| 关 键 词： | 移动式大气环境激光雷达系统 O3 季节 垂直分布 北京 |
| 收稿时间： | 2017/3/6 0:00:00 |
| 修稿时间： | 2017/12/4 0:00:00 |
Vertical Distribution Characteristics of Atmospheric Ozone in Beijing in Winter, Spring and Early Summer |
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| GU Yu,GAO Qingxian,MA Zhanyun,ZHANG Yanyan,LIU Ting and ZHENG Youfei.Vertical Distribution Characteristics of Atmospheric Ozone in Beijing in Winter, Spring and Early Summer[J].Research of Environmental Sciences,2018,31(3):457-464. |
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| Authors: | GU Yu GAO Qingxian MA Zhanyun ZHANG Yanyan LIU Ting and ZHENG Youfei |
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| Institution: | 1.School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China2.Jiangsu Key Laboratory of Atmosphere Environment Monitoring & Pollution Control, Nanjing 210044, China3.Environmental Monitoring Center Station of Inner Mongolia Autonomous, Huhhot 010010, China4.Chinese Research Academy of Environmental Sciences, Beijing 100012, China5.Meteorological Bureau of Langfang of Hebei Province, Langfang 065000, China |
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| Abstract: | Based on the third generation mobile atmospheric laser radar system, $\varphi $(O3) was measure from December 1st, 2010 to March 31st, 2011 and from May 7th to June 9th in 2011, in Chinese Research Academy of Environmental Sciences located in the north of Beijing, to study the vertical distribution characteristics of $\varphi $(O3) in spring, summer and winter. The results show $\varphi $(O3) highest value in summer and the lowest value in winter The control factor of ozone pollution is the meteorological background (sunny day, gentle breeze and inversion conditions). The diurnal variation of $\varphi $(O3) showed a single peak and valley. The peak of $\varphi $(O3) appeared between 14:00 and 18:00 in the afternoon, and the valley of $\varphi $(O3) appeared between 22:00 and 09:00 of next day. Also, the single peak, the double-peak and the multi-peak were appeared in the vertical distribution of $\varphi $(O3) above 10 km. However, the vertical and oblique distributions of $\varphi $(O3) mainly appeared multi-peak below 5 km, and the skew distribution of $\varphi $(O3) is closely related to the underlying surface and O3's precursors. The verticle distribution of $\varphi $(O3) was inhomogeneities, but the diffrerence of $\varphi $(O3) was 30×10-9. The vertical law of $\varphi $(O3) mainly exhibits two distribution characteristics, one is the accumulation area with high concentration at 3-5 km, and the other is no obvious high value accumulation area. |
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| Keywords: | mobile atmospheric laser radar system O3 seasonally vertical distribution Beijing |
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