气候变化领域集成服务门户(CCPortal): Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates

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DOI	10.5194/acp-22-4323-2022
	Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates
	Pope, Richard J.; Kelly, Rebecca; Marais, Eloise A.; Graham, Ailish M.; Wilson, Chris; Harrison, Jeremy J.; Moniz, Savio J. A.; Ghalaieny, Mohamed; Arnold, Steve R.; Chipperfield, Martyn P.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	4323
结束页码	4338
卷号	22 期号:7 页码:16
英文摘要	Nitrogen oxides (NOx, NO + NO2) are potent air pollutants which directly impact on human health and which aid the formation of other hazardous pollutants such as ozone (O-3) and particulate matter. In this study, we use satellite tropospheric column nitrogen dioxide (TCNO2) data to evaluate the spatiotemporal variability and magnitude of the United Kingdom (UK) bottom-up National Atmospheric Emissions Inventory (NAEI) NOx emissions. Although emissions and TCNO2 represent different quantities, for UK city sources we find a spatial correlation of similar to 0.5 between the NAEI NOx emissions and TCNO2 from the high-spatial-resolution TROPOspheric Monitoring Instrument (TROPOMI), suggesting a good spatial distribution of emission sources in the inventory. Between 2005 and 2015, the NAEI total UK NOx emissions and long-term TCNO2 record from the Ozone Monitoring Instrument (OMI), averaged over England, show annually decreasing trends of 4.4 % and 2.2 %, respectively. Top-down NOx emissions were derived in this study by applying a simple mass balance approach to TROPOMI-observed downwind NO2 plumes from city sources. Overall, these top-down estimates were consistent with the NAEI, but for larger cities such as London and Birmingham the inventory is significantly (> 25 %) less than the top-down 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:000780736600001
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/273373
作者单位	University of Leeds; University of Leeds; University of London; University College London; University of Leicester; University of Leicester
推荐引用方式 GB/T 7714	Pope, Richard J.,Kelly, Rebecca,Marais, Eloise A.,et al. Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates[J],2022,22(7):16.
APA	Pope, Richard J..,Kelly, Rebecca.,Marais, Eloise A..,Graham, Ailish M..,Wilson, Chris.,...&Chipperfield, Martyn P..(2022).Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(7),16.
MLA	Pope, Richard J.,et al."Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.7(2022):16.