DOI: 10.1016/j.atmosenv.2016.11.053
Scopus记录号: 2-s2.0-85000763606
论文题名: Natural emissions under future climate condition and their effects on surface ozone in the Yangtze River Delta region, China
作者: Xie M ; , Shu L ; , Wang T ; -J ; , Liu Q ; , Gao D ; , Li S ; , Zhuang B ; -L ; , Han Y ; , Li M ; -M ; , Chen P ; -L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 150 起始页码: 162
结束页码: 180
语种: 英语
英文关键词: Climate change
; Indicator
; Natural emission
; Ozone
; The Yangtze River Delta region
Scopus关键词: Air quality
; Climate models
; Indicators (instruments)
; Ozone
; Pollution control
; River pollution
; Rivers
; Soil pollution
; Climate condition
; Future climate
; Meteorological fields
; Natural emissions
; Ozone precursors
; Surface ozone
; Transition values
; Yangtze river delta
; Climate change
; bicarbonate
; hydrogen peroxide
; ozone
; air quality
; biogenic emission
; bioindicator
; climate change
; hydrogen peroxide
; ozone
; spatial distribution
; volatile organic compound
; air pressure
; Article
; biomass
; calibration
; China
; climate change
; futurology
; humidity
; precipitation
; priority journal
; river
; solar radiation
; surface property
; China
; Yangtze Delta
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The natural emissions of ozone precursors (NOx and VOCs) are sensitive to climate. Future climate change can impact O3 concentrations by perturbing these emissions. To better estimate the variation of natural emissions under different climate conditions and understand its effect on surface O3, we model the present and the future air quality over the Yangtze River Delta (YRD) region by running different simulations with the aid of the WRF-CALGRID model system that contains a natural emission module. Firstly, we estimate the natural emissions at present and in IPCC A1B scenario. The results show that biogenic VOC emission and soil NOx emission over YRD in 2008 is 657 Gg C and 19.1 Gg N, respectively. According to climate change, these emissions in 2050 will increase by 25.5% and 11.5%, respectively. Secondly, the effects of future natural emissions and meteorology on surface O3 are investigated and compared. It is found that the variations in meteorological fields can significantly alter the spatial distribution of O3 over YRD, with the increases of 5–15 ppb in the north and the decreases of −5 to −15 ppb in the south. However, only approximately 20% of the surface O3 increases caused by climate change can be attributed to the natural emissions, with the highest increment up to 2.4 ppb. Finally, Ra (the ratio of impacts from NOx and VOCs on O3 formation) and H2O2/HNO3 (the ratio between the concentrations of H2O2 and HNO3) are applied to study the O3 sensitivity in YRD. The results show that the transition value of H2O2/HNO3 will turn from 0.3 to 0.5 in 2008 to 0.4–0.8 in 2050. O3 formation in the YRD region will be insensitive to VOCs under future climate condition, implying more NOx need to be cut down. Our findings can help us understand O3 variation trend and put forward the reasonable and effective pollution control policies in these famous polluted areas. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82223
Appears in Collections: 气候变化事实与影响
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作者单位: School of Atmospheric Sciences, Nanjing University, Nanjing, China; Jiangsu Collaborative Innovation Center for Climate Change, Nanjing, China; CMA-NJU Joint Laboratory for Climate Prediction Studies, Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing, China; Jiangsu Provincial Academy of Environmental Science, Nanjing, China
Recommended Citation:
Xie M,, Shu L,, Wang T,et al. Natural emissions under future climate condition and their effects on surface ozone in the Yangtze River Delta region, China[J]. Atmospheric Environment,2017-01-01,150