Origin of springtime ozone enhancements in the lower troposphere over Beijing: in situ measurements and model analysis

被引：25

作者：

Huang, J. ^{[1
]}

Liu, H. ^{[1
]}

Crawford, J. H. ^{[2
]}

Chan, C. ^{[3
]}

Considine, D. B. ^{[3
,4
]}

Zhang, Y. ^{[5
]}

Zheng, X. ^{[6
]}

Zhao, C. ^{[7
]}

Thouret, V. ^{[8
]}

Oltmans, S. J. ^{[9
,10
]}

Liu, S. C. ^{[11
]}

Jones, D. B. A. ^{[12
]}

Steenrod, S. D. ^{[13
,14
]}

Damon, M. R. ^{[14
,15
]}

机构：

[1] Natl Inst Aerosp, Hampton, VA 23681 USA

[2] NASA, Langley Res Ctr, Hampton, VA 23665 USA

[3] Chinese Acad Sci, Inst Earth Environm, Xian, Peoples R China

[4] NASA Headquarters, Washington, DC USA

[5] South China Inst Environm Sci, Guangzhou, Guangdong, Peoples R China

[6] Chinese Acad Meteorol Sci, Beijing, Peoples R China

[7] Peking Univ, Dept Atmospher Sci, Beijing 100871, Peoples R China

[8] Lab Aerol, UMR5560, Toulouse, France

[9] Univ Colorado, CIRES, Boulder, CO 80309 USA

[10] NOAA, ESRL, Boulder, CO USA

[11] Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan

[12] Univ Toronto, Dept Phys, Toronto, ON, Canada

[13] Univ Space Res Assoc, Columbia, MD USA

[14] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[15] Sci Syst & Applicat Inc, Lanham, MD USA

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2015年 / 15卷 / 09期

基金：

美国国家科学基金会;

关键词：

MOZAIC AIRBORNE PROGRAM; INTERANNUAL VARIABILITY; VERTICAL-DISTRIBUTION; BACKGROUND OZONE; MOIST CONVECTION; AIR-POLLUTION; SURFACE OZONE; WATER-VAPOR; TRANSPORT; AIRCRAFT;

D O I：

10.5194/acp-15-5161-2015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ozone (O-3) concentrations in the lower troposphere (LT) over Beijing have significantly increased over the past 2 decades as a result of rapid industrialization in China, with important implications for regional air quality and the photochemistry of the background troposphere. We characterize the vertical distribution of lower-tropospheric (0-6 km) O-3 over Beijing using observations from 16 ozonesonde soundings during a field campaign in April-May 2005 and MOZAIC (Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft) over 13 days in the same period. We focus on the origin of LT O-3 enhancements observed over Beijing, particularly in May. We use a global 3-D chemistry and transport model (GEOS-Chem CTM; GEOS - Goddard Earth Observing System) driven by assimilated meteorological fields to examine the transport pathways for O-3 pollution and to quantify the sources contributing to O-3 and its enhancements in the springtime LT over Beijing. Out-put from the Global Modeling Initiative (GMI) CTM is also used. High O-3 concentrations (up to 94.7 ppbv) were frequently observed at the altitude of similar to 1.5-2 km. The CTMs captured the timing of the occurrences but significantly underestimated their magnitude. GEOS-Chem simulations and a case study showed that O-3 produced in the Asian troposphere (especially from Asian anthropogenic pollution) made major contributions to the observed O-3 enhancements. Contributions from anthropogenic pollution in the European and North American troposphere were reduced during these events, in contrast with days without O-3 enhancements when contributions from Europe and North America were substantial. The O-3 enhancements typically occurred under southerly wind and warmer conditions. It is suggested that an earlier onset of the Asian summer monsoon would cause more O-3 enhancement events in the LT over the North China Plain in late spring and early summer.

引用

页码：5161 / 5179

页数：19

共 76 条

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