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 (2): 32-39.doi: 10.3969/j.issn.1673-503X.2019.02.005

• 论文 • 上一篇    下一篇

基于地基观测的成都彭州气溶胶光学特性研究

巫俊威1, 赵胡笳2, 杨东1, 魏垚3   

  1. 1. 成都市气象局, 四川 成都 610000;
    2. 中国气象局沈阳大气环境研究所, 辽宁 沈阳 110166;
    3. 中国地质大学, 北京 100083
  • 收稿日期:2018-04-11 修回日期:2018-06-25 出版日期:2019-04-30 发布日期:2019-04-30
  • 通讯作者: 赵胡笳,女,副研究员,E-mail:tjzhj4659@sina.com E-mail:tjzhj4659@sina.com
  • 作者简介:巫俊威,男,1986年生,工程师,主要从事大气探测方面研究,E-mail:524317961@qq.com
  • 基金资助:

    成都市科技治霾创新项目“应用冷却技术人工影响逆温层的研究与试验”和国家自然科学基金(41605112)共同资助。

Ground-based observation of aerosol optical properties in Pengzhou,Chengdu

WU Jun-wei1, ZHAO Hu-jia2, YANG Dong1, WEI Yao3   

  1. 1. Chengdu Meteorological Office, Chengdu 610000, China;
    2. Institute of Atmospheric Environment, China Meteorological Administration, Shenyang 110166, China;
    3. China University of Geosciences, Beijing 100083, China
  • Received:2018-04-11 Revised:2018-06-25 Online:2019-04-30 Published:2019-04-30

摘要:

利用2017年成都市彭州地区CE318型太阳分光光度计的观测数据,反演了该地区的气溶胶光学厚度(Aerosol Optical Depth,AOD)、Angström指数(α)和大气浑浊度(β),分析了AODαβ以及可吸入颗粒物(PM10、PM2.5)之间的关系。结果表明:AOD表现出冬季>春季 > 夏季 > 秋季的季节变化特征,高值主要出现在冬、春季,低值主要出现在夏、秋季。Angström指数在全年的波动不大,月平均值为1.22±0.19,低值出现在春季,高值出现在夏季。除了冬季,在其他季节观察到和Angström指数具有相同的月变化趋势。AODβ之间具有较强的相关性,但与PM10、PM2.5的正相关关系表现偏弱。该地区气溶胶光学特性受北方沙尘的影响并不明显,但受到人类活动的影响显著,该地区主控态气溶胶是以细粒子为主的城市—工业型气溶胶类型。

关键词: 气溶胶光学厚度, Angström指数, 可吸入颗粒物

Abstract:

Based on measurements from a ground-based CE318 solar photometer in Pengzhou area of Chengdu in 2017,aerosol optical depth (AOD),Angström exponent (α),and atmospheric turbidity (β) were retrieved and their correlations with the inhalable particulate matters (PM10 and PM2.5) were studied.The results show that the seasonal mean AOD is largest in winter,followed by spring,summer,and autumn.The large AOD values usually occur in winter and spring,and the lower values mostly occur in summer and autumn.The α values vary in a small range throughout the whole year with a monthly average of 1.22±0.19 and are low in spring and high in summer.The monthly variation of AOD is similar to that of α in all seasons except for winter.The AOD has a strong correlation with β and weak positive correlation with PM10 and PM2.5.Aerosol optical property in this area is not greatly affected by dust particles from the north but is significantly influenced by human activities.The primary aerosol type in this region is the urban-industrial aerosols dominated by fine particles.

Key words: Aerosol optical depth(AOD), Angström exponent, Inhalable particulate matter

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