Cheng Xinghong, Xu Xiangde, Chan Chuenyu, et al. Integrated analysis on spatial distribution characteristics of PM10 concentration based on variational processing method in Beijing. J Appl Meteor Sci, 2007, 18(2): 165-172.
Citation: Cheng Xinghong, Xu Xiangde, Chan Chuenyu, et al. Integrated analysis on spatial distribution characteristics of PM10 concentration based on variational processing method in Beijing. J Appl Meteor Sci, 2007, 18(2): 165-172.

Integrated Analysis on Spatial Distribution Characteristics of PM10 Concentration Based on Variational Processing Method in Beijing

  • Received Date: 2005-11-21
  • Rev Recd Date: 2006-10-18
  • Publish Date: 2007-04-30
  • A study is carried out on the spatial distribution characteristics of PM10 mass concentration and effect of pollutants from motor vehicle emissions in the main streets, the ring roads which are located in urban districts and suburbs in Beijing, based on the integrated Atmospheric Pollution Field Experiments (BECAPEX, Beijing City Atmospheric Pollution Experiment) and variational processing methods by satellite retrieval data whose horizontal resolution is 1 km. The results show that PM10 mass concentration in the majority of urban area are low, especially in ancient building communities which are located inside the Second Ring Road and in large afforestation zone. High concentration areas of PM10 in suburb distribute along ring roads, and pollutions are much serious in the southwest, the south and the northeast of the suburbs. The above mentioned fact shows that the impact of vehicle emissions on PM10 concentration is very serious in blocks which are located in urban districts and suburbs. Before satellite retrieval data are corrected by variational processing method, the value of MODIS AOD (Aerosol Optical Depth) in urban districts and suburbs are much higher than that in exurb, there are inveracious high value areas of AOD in its spatial distribution field and its unsymmetrical spatial distribution characteristics is not obvious. AOD values in most exurbs are lower than that in urban districts and suburbs, especially in the northwest of the exurb. But AOD values in the southwest and the southeast of the exurb are relatively high. The remarkable corrected effect is obtained by using a point plane integrated observation research technique and variational processing method by MODIS AOD retrieval data and corresponding observation data on the ground. AOD variational field with higher resolution information could be used to describe unsymmetrical spatial distribution characteristics in urban district and suburb detailedly, especially in exurb. This method can be used to make up the limitation of observation in exurbs. After satellite retrieval data are corrected by variational processing method, unsymmetrical spatial distribution char acteristics of AOD value are more distinct and conformed with that of PM10 concentration. Inveracious high value areas of AOD distribution are removed. Orbicular distribution of AOD in near suburb is more obvious and its unsymmetrical distribution characteristics in exurbs are also more notable. The location and intensity of the above high and low AOD value areas are stable accordingly.
  • Fig. 1  Location of ambulatory sampling points in the vertical section observation experiment

    Fig. 2  Scatter diagrams for PM10 concentration sampled by Dust Trak and TEOM

    Fig. 3  Scatter diagrams for PM10 concentration sampled at ambulatory sampling points and AOD value on Oct 15—16, 2003

    Fig. 4  Spatial distribution characteristics of PM10 concentration sampled at ambulatory sampling points on Sep 10, Oct 14—16, 2003(unit: mg·m-3)

    Fig. 5  Spatial distribution characteristics of original AOD retrieval data and AOD value processed by variational method in Beijing on Sep 10 and Oct 15, 2003

    (a)original AOD retrieval data on Sep 10,(b)AOD variational value on Sep 10,(c)original AOD retrieval data on Oct 15,(d)AOD variational value on Oct 15

    Table  1  Hourly cloud amount observed in Beijing South Observatory during 09 : 00—12 : 00, on Sep 10 and Oct 13—16, 2003

    Table  2  Superscale of PM10 concentration observed in Beijing on Sep 10 and Oct 14—16, 2003

  • [1]
    Fuji T, Hayashi S, Hogg J C, et al.Particulate matter induces cytokine expression in human bronchial epithelial cells.American Journal of Respiratory Cell and Molecular Biology, 2001, 25(3):265-271. doi:  10.1165/ajrcmb.25.3.4445
    [2]
    魏复盛, 胡伟, 滕恩江, 等.空气污染与儿童呼吸系统患病率的相关分析.中国环境科学, 2000, 20(3):220-224. http://www.cnki.com.cn/Article/CJFDTOTAL-ZGHJ200003008.htm
    [3]
    纪飞, 苏文颖, 秦瑜.对流层光化学过程中的气粒转化研究.大气科学, 2001, 25(2):269-276. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200102015.htm
    [4]
    徐祥德.城市化环境大气污染模型动力学问题.应用气象学报, 2002, 13(增刊):1-12. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX2002S1000.htm
    [5]
    Colvile R N, Hutchinson E J, Mindell J S, et al.The transport sector as a source of air pollution.Atmos Environ, 2001, 35:1537-1565. doi:  10.1016/S1352-2310(00)00551-3
    [6]
    Chan L Y, Chan C Y, Qin Y.The effect of commuting microenvironment on commuter exposures to vehicular emission in Hong Kong.Atmos Environ, 1999, 33:1777-1787. doi:  10.1016/S1352-2310(98)00338-0
    [7]
    Cantanho A D A.Wintertime and summertime Sao Paulo aerosol source apportionment study.Atmos Environ, 2001, 35:4889-4902. doi:  10.1016/S1352-2310(01)00357-0
    [8]
    吕萍, 袁九毅, 张文煜, 等.一个研究街道峡谷流场及浓度场特征的三维数值模式.四川环境, 2003, 2:64-66. http://www.cnki.com.cn/Article/CJFDTOTAL-SCHJ200302020.htm
    [9]
    贺克斌, 何东全, 唐仲洲.我国汽车排放污染现状与发展.环境科学, 1996, 17(4):80-83. http://www.cnki.com.cn/Article/CJFDTOTAL-HJKZ604.026.htm
    [10]
    [11]
    蔡旭晖, 张睿, 宋宇, 等.北京地区大气PM10和SO2的背景浓度分析.气候与环境研究, 2004, 9(3):445-453. http://www.cnki.com.cn/Article/CJFDTOTAL-QHYH200403003.htm
    [12]
    赵越, 潘钧, 张红远, 等.北京地区大气中可吸入颗粒物的污染现状分析.环境科学研究, 2004, 17(1):67-69. http://www.cnki.com.cn/Article/CJFDTOTAL-HJKX200401015.htm
    [13]
    毛节泰, 李成才, 张军华, 等.MODIS卫星遥感北京地区气溶胶光学厚度及其与地面光度计遥感的对比.应用气象学报, 2002, 13(增刊):127-135. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX2002S1013.htm
    [14]
    周秀骥, 徐祥德.2000年春季沙尘暴动力学特征.中国科学(D辑), 2002, 32(4):327-334. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200204007.htm
    [15]
    徐祥德, 周秀骥, 翁永辉, 等.星载MODIS资料与地面光度计探测气溶胶变分场.科学通报, 2003, 15:1680-1685. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200315018.htm
    [16]
    徐祥德, 许健民, 王继志, 等.大气遥感再分析场构造技术与原理.北京:气象出版社, 2003:58-91.
    [17]
    李成才, 毛节泰, 刘启汉.利用MODIS资料遥感香港地区高分辨率气溶胶光学厚度.大气科学, 2005, 29(3):335-342. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200503000.htm
    [18]
    李成才, 毛节泰, 刘启汉, 等.利用MODIS光学厚度遥感产品研究北京及周边地区的大气污染.大气科学, 2003, 27(5):869-879. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK200305007.htm
    [19]
    魏凤英.现代气候统计诊断与预测技术.北京:气象出版社, 1999:35-37.
    [20]
    Lee Yuet Lai, Sequeira R.Water-soluble aerosol and visibility degradation in Hong Kong during autumn and early winter, 1998.Environmental Pollution, 2002, 116:225-233. doi:  10.1016/S0269-7491(01)00135-X
    [21]
    王淑英, 张小玲.北京地区PM10污染的气象特征.应用气象学报, 2002, 13(增刊):177-184. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX2002S1019.htm
    [22]
    王雪松, 李金龙.北京地区夏季PM10污染的数值模拟研究.北京大学学报(自然科学版), 2003, 39(3):419-427. http://www.cnki.com.cn/Article/CJFDTOTAL-BJDZ200303022.htm
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    • Received : 2005-11-21
    • Accepted : 2006-10-18
    • Published : 2007-04-30

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