DOI: 10.1029/2018JD028582
Scopus记录号: 2-s2.0-85049869605
论文题名: Agricultural Fire Impacts on Ozone Photochemistry Over the Yangtze River Delta Region, East China
作者: Li M. ; Wang T. ; Xie M. ; Li S. ; Zhuang B. ; Chen P. ; Huang X. ; Han Y.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 12 起始页码: 6605
结束页码: 6623
语种: 英语
英文关键词: agricultural fire emission
; heterogeneous reaction
; ozone
; radiation feedback
Scopus关键词: agricultural emission
; chemical reaction
; concentration (composition)
; emission inventory
; mixing ratio
; nitrogen dioxide
; ozone
; photochemistry
; smoke
; solar radiation
; troposphere
; Anhui
; China
; Yangtze River
英文摘要: Agricultural fires could affect tropospheric photochemistry by emitting trace gases, interacting with solar radiation or providing reactive surfaces for heterogeneous reactions. This study examines the effects of a typical agricultural fire event (8–13 June 2012) on ozone photochemistry over the Yangtze River Delta region, East China. The online coupled Weather Research and Forecasting-Chemistry model is used, with the inclusion of a detailed agricultural fire emission inventory and seven heterogeneous reactions on soot surfaces. Comparisons with satellite and ground observational data indicate that the model is capable of reproducing the transport and evolution of this crop fire event. The precursor emissions from agricultural fires play a major role in modifying ozone photochemistry, with a maximal increase in ozone mixing ratio reaching 20 ppb (40%) near the fire zones in northern Anhui. The radiation feedback generates a small increase of surface NO2 levels by 2% and a decrease in surface O3 levels by 1% in the smoke plume. The effects due to heterogeneous uptake on soot are rather small, on average, changing the average O3, NO2, ˙OH, and HO2˙ concentrations by +0.8%, −0.5%, −0.7%, and +0.8%, respectively. This study highlights the complicated interactions between agricultural fire emissions and photochemistry. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113687
Appears in Collections: 气候减缓与适应
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作者单位: Nanjing University, School of Atmospheric Sciences, Nanjing, China; Sun Yat-sen University, School of Atmospheric Sciences, Guangzhou, China
Recommended Citation:
Li M.,Wang T.,Xie M.,et al. Agricultural Fire Impacts on Ozone Photochemistry Over the Yangtze River Delta Region, East China[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(12)