NDLI: Localized 3D-structural features of dynamic-chemical processes of urban air pollution in Beijing winter

Content Provider	Springer Nature Link
Author	Xu, Xiangde Ding, Guoan Zhou, Li Zheng, Xiangdong Bian, Lingen Qiu, Jinheng Yang, Liquan Mao, Jietai
Copyright Year	2003
Abstract	The Beijing City Air Pollution Observation Field Experiment (BECAPEX) is described with emphases on the “point-surface” research approach and composite analysis. The analysis results of measurements from four observation sites across the Beijing urban area from January to March indicate that the overall impact of urban emission sources in the heating season is significant, and the staggered impact of urban emission sources has different features at observation sites over different parts of Beijing in both heating and non-heating seasons. The pollutants NO$_{x}$, SO$_{2}$ and CO in the urban boundary layer have the in-phase variation features over a large area. O$_{3}$ concentrations at different sites have the same variation trend but its change is reversed phases with above pollutants. The pollutants over the urban area in heating and non-heating seasons also have the synchronous variation trend. The comprehensive sounding of BECAPEX indicates that pollutants and aerosol vertical profiles are closely correlated to the vertical structure of the large-scale inversion layer in the urban boundary layer over the urban area. The localized 3D-structural features of local urban polluting processes associated with the peripheral areas are discussed with a “point-surface” comprehensive sounding technique.
Starting Page	819
Ending Page	825
Page Count	7
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	48
Issue Number	8
e-ISSN	18619541
Language	English
Publisher	Science in China Press
Publisher Date	2003-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	air pollution aerosol 3D structure satellite remote sensing localization Science Life Sciences Physics Chemistry/Food Science Earth Sciences Engineering
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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