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题名: Vertical distribution of atmospheric aerosol particles over North China from 2006 to 2015
其他题名: 2006~2015年中国华北地区气溶胶的垂直分布特征
作者: Gao, Xing-Xing; Chen, Yan; Zhang, Wu
收录类别: EI ; CSCD
出版日期: 2016-08-20
刊名: 中国环境科学
卷号: 36, 期号:8, 页码:2241-2250
期刊主办单位: 中国环境科学学会
出版者: Chinese Society for Environmental Sciences
出版地: Beijing
中文摘要: 为研究高污染地区气溶胶形成机理提供理论依据,利用CALIPSO卫星提供的Level 2Profile和Level 2VFM产品,分析了华北地区2006~2015年532nm总后向散射系数,退偏振比,色比及不同类型气溶胶的时空变化特征,并结合地基观测资料,探讨了不同能见度下华北地区气溶胶垂直分布特征.结果表明:华北地区气溶胶粒子532nm总后向散射系数,退偏振比和色比范围依次为0.5×10~(-3)~8.0×10~(-3)km~(-1)sr~(-1),0.14~0.3和0.6~2.0,且具有显著的季节和高度变化特征;能见度<5km时粒子散射能力最强,非球形最弱,粒径最小,对应的最大532nm总后向散射系数,最小退偏振比和最小色比依次为0.012km~(-1)sr~(-1),0.092和0.856,能见度>10km时相反;污染沙尘,沙漠沙尘,污染大陆气溶胶和洁净海洋气溶胶集中在0~2km,出现的频率依次为13.81%,8.48%,5.45%和1.22%.
英文摘要: To provide theoretical basis for studying the formation mechanism of aerosol, this paper analyzes the spatial and temporal variation characteristics of 532nm total backscatter coefficient, particulate depolarization ratio, color ratio, and different types of aerosol over North China from 2006 to 2015 by using Level 2 profile and Level 2VFM products provided by CALIPSO system.Vertical distribution characteristics of aerosol under different visibility conditions are then analyzed over North China based on surface observation data. The results show that 532nm total backscatter coefficient, particulate depolarization ratio, and color ratio over North China range from 0.5×10-3~8.0×10-3km-1·sr-1, 0.14~0.3, and 0.6~2.0, respectively, which all shows characteristics of significant variation with season and height. In addition, aerosol particles have a stronger scattering ability, more regular shape, and smaller sizes with visibility of less than 5km than more than 5km and vice versa with visibility of more than 10km. When the visibility is less than 5km, the corresponding maximum 532nm total backscatter coefficient, minimum particulate depolarization ratio, and minimum color ratio are 0.012km-1·sr-1, 0.092, and 0.856, respectively. The results also show that the aerosols of polluted dust, dust in desert, polluted continental and clean marine concentrate between 0 to 2km, whose occurrence frequencies are 13.81%, 8.48%, 5.45%, and 1.22%, respectively. © 2016, Editorial Board of China Environmental Science. All right reserved.
关键词: 华北地区 ; 气溶胶 ; 垂直分布 ; CALIPSO
作者部门: (1) Key Laboratory of Semi-Arid Climate Changes with the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou ; 730000, China
通讯作者: Chen, Yan (chenyan@lzu.edu.cn)
学科分类: Atmospheric Properties;Vision
文章类型: Article
所属项目编号: 国家重大科学研究计划项目 ; 兰州大学中央高校基本科研业务费专项资金
所属项目名称: 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 中央高校基本科研业务费专项资金
项目资助者: MOST ; LZU
语种: 中文
ISSN号: 1000-6923
CSCD记录号: CSCD:5778927
EI记录号: 20163702806381
IR记录号: 20163702806381
第一机构:
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/182688
Appears in Collections:大气科学学院_期刊论文

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Recommended Citation:
Gao, Xing-Xing,Chen, Yan,Zhang, Wu. Vertical distribution of atmospheric aerosol particles over North China from 2006 to 2015[J]. Zhongguo Huanjing Kexue/China Environmental Science,2016,36(8):2241-2250.
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