气候变化领域集成服务门户(CCPortal): Estimating enhancement ratios of nitrogen dioxide, carbon monoxide and carbon dioxide using satellite observations

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DOI	10.5194/acp-23-3493-2023
	Estimating enhancement ratios of nitrogen dioxide, carbon monoxide and carbon dioxide using satellite observations
	MacDonald, Cameron G.; Mastrogiacomo, Jon-Paul; Laughner, Joshua L.; Hedelius, Jacob K.; Nassar, Ray; Wunch, Debra
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	3493
结束页码	3516
卷号	23 期号:6 页码:24
英文摘要	Using co-located space-based measurements of carbon dioxide (CO2) from the Orbiting Carbon Observatory-2 and Orbiting Carbon Observatory-3 (OCO-2/3) and carbon monoxide (CO) and nitrogen dioxide (NO2) from the TROPOspheric Monitoring Instrument (TROPOMI), we calculate total column enhancements for observations influenced by anthropogenic emissions from urban regions relative to clean background values. We apply this method to observations taken over or downwind of 27 large (population of >1 million) urban areas from around the world. Enhancement ratios between species are calculated and compared to emissions ratios derived from four globally gridded anthropogenic emissions inventories. We find that these global inventories underestimate CO emissions in many North American and European cities relative to our observed enhancement ratios, while smaller differences were found for NO2 emissions. We further demonstrate that the calculation and intercomparison of enhancement ratios of multiple tracers can help to identify the underlying biases leading to disagreement between observations and inventories. Additionally, we use high-resolution CO2 inventories for two cities (Los Angeles and Indianapolis) to estimate emissions of CO and NO2 using our calculated enhancement ratios and find good agreement with both a previous modelling study for the megacity of Los Angeles and California Air Resources Board (CARB) inventory estimates.
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:000956052000001
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/273757
作者单位	University of Toronto; University of Waterloo; Princeton University; California Institute of Technology; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); Environment & Climate Change Canada
推荐引用方式 GB/T 7714	MacDonald, Cameron G.,Mastrogiacomo, Jon-Paul,Laughner, Joshua L.,et al. Estimating enhancement ratios of nitrogen dioxide, carbon monoxide and carbon dioxide using satellite observations[J],2023,23(6):24.
APA	MacDonald, Cameron G.,Mastrogiacomo, Jon-Paul,Laughner, Joshua L.,Hedelius, Jacob K.,Nassar, Ray,&Wunch, Debra.(2023).Estimating enhancement ratios of nitrogen dioxide, carbon monoxide and carbon dioxide using satellite observations.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(6),24.
MLA	MacDonald, Cameron G.,et al."Estimating enhancement ratios of nitrogen dioxide, carbon monoxide and carbon dioxide using satellite observations".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.6(2023):24.