NO<sub><i>x</i></sub> emission trends over Chinese cities estimated from OMI observations during 2005 to 2015

doi:10.5194/acp-17-9261-2017

GSTDTAP > 地球科学

DOI	10.5194/acp-17-9261-2017
	NO_x emission trends over Chinese cities estimated from OMI observations during 2005 to 2015
	Fei Liu, Steffen Beirle, Qiang Zhang, Ronald J. van der A, Bo Zheng, Dan Tong, and Kebin He
	2017-08-01
发表期刊	Atmospheric Chemistry and Physics
出版年	2017
英文摘要	Satellite nitrogen dioxide (NO₂) observations have been widely used to evaluate emission changes. To determine trends in nitrogen oxides (NO_x) emission over China, we used a method independent of chemical transport models to quantify the NO_x emissions from 48 cities and seven power plants over China, on the basis of Ozone Monitoring Instrument (OMI) NO₂ observations from 2005 to 2015. We found that NO_x emissions over 48 Chinese cities increased by 52 % from 2005 to 2011 and decreased by 21 % from 2011 to 2015. The decrease since 2011 could be mainly attributed to emission control measures in power sector; while cities with different dominant emission sources (i.e., power, industrial, and transportation sectors) showed variable emission decline timelines that corresponded to the schedules for emission control in different sectors. The time series of the derived NO_x emissions was consistent with the bottom-up emission inventories for all power plants (r = 0. 8 on average), but not for some cities (r = 0. 4 on average). The lack of consistency observed for cities was most probably due to the high uncertainty of bottom-up urban emissions used in this study, which were derived from downscaling the regional-based emission data to city level by using spatial distribution proxies.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/287873
专题	地球科学
推荐引用方式 GB/T 7714	Fei Liu, Steffen Beirle, Qiang Zhang, Ronald J. van der A, Bo Zheng, Dan Tong, and Kebin He. NO_x emission trends over Chinese cities estimated from OMI observations during 2005 to 2015[J]. Atmospheric Chemistry and Physics,2017.
APA	Fei Liu, Steffen Beirle, Qiang Zhang, Ronald J. van der A, Bo Zheng, Dan Tong, and Kebin He.(2017).NO_x emission trends over Chinese cities estimated from OMI observations during 2005 to 2015.Atmospheric Chemistry and Physics.
MLA	Fei Liu, Steffen Beirle, Qiang Zhang, Ronald J. van der A, Bo Zheng, Dan Tong, and Kebin He."NO_x emission trends over Chinese cities estimated from OMI observations during 2005 to 2015".Atmospheric Chemistry and Physics (2017).