气候变化领域集成服务门户(CCPortal): Eddy covariance measurements highlight sources of nitrogen oxide emissions missing from inventories for central London

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DOI	10.5194/acp-22-9413-2022
	Eddy covariance measurements highlight sources of nitrogen oxide emissions missing from inventories for central London
	Drysdale, Will S.; Vaughan, Adam R.; Squires, Freya A.; Cliff, Sam J.; Metzger, Stefan; Durden, David; Pingintha-Durden, Natchaya; Helfter, Carole; Nemitz, Eiko; Grimmond, C. Sue B.; Barlow, Janet; Beevers, Sean; Stewart, Gregor; Dajnak, David; Purvis, Ruth M.; Lee, James D.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	9413
结束页码	9433
卷号	22 期号:14 页码:21
英文摘要	During March-June 2017 emissions of nitrogen oxides were measured via eddy covariance at the British Telecom Tower in central London, UK. Through the use of a footprint model the expected emissions were simulated from the spatially resolved National Atmospheric Emissions Inventory for 2017 and compared with the measured emissions. These simulated emissions were shown to underestimate measured emissions during the daytime by a factor of 1.48, but they agreed well overnight. Furthermore, underestimations were spatially mapped, and the areas around the measurement site responsible for differences in measured and simulated emissions were inferred. It was observed that areas of higher traffic, such as major roads near national rail stations, showed the greatest underestimation by the simulated emissions. These discrepancies are partially attributed to a combination of the inventory not fully capturing traffic conditions in central London and both the spatial and temporal resolution of the inventory not fully describing the high heterogeneity of the urban centre. Understanding of this underestimation may be further improved with longer measurement time series to better understand temporal variation and improved temporal scaling factors to better simulate sub-annual emissions.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000829678600001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273425
作者单位	University of York - UK; University of Wisconsin System; University of Wisconsin Madison; UK Centre for Ecology & Hydrology (UKCEH); University of Reading; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC National Centre for Atmospheric Science; University of York - UK; Imperial College London; UK Research & Innovation (UKRI); Natural Environment Research Council (NERC); NERC British Antarctic Survey
推荐引用方式 GB/T 7714	Drysdale, Will S.,Vaughan, Adam R.,Squires, Freya A.,et al. Eddy covariance measurements highlight sources of nitrogen oxide emissions missing from inventories for central London[J],2022,22(14):21.
APA	Drysdale, Will S..,Vaughan, Adam R..,Squires, Freya A..,Cliff, Sam J..,Metzger, Stefan.,...&Lee, James D..(2022).Eddy covariance measurements highlight sources of nitrogen oxide emissions missing from inventories for central London.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(14),21.
MLA	Drysdale, Will S.,et al."Eddy covariance measurements highlight sources of nitrogen oxide emissions missing from inventories for central London".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.14(2022):21.