气候变化领域集成服务门户(CCPortal): An assessment of emission characteristics of Northern Hemisphere cities using spaceborne observations of CO2, CO, and NO2

CCPortal

DOI	10.1016/j.rse.2020.112246
	An assessment of emission characteristics of Northern Hemisphere cities using spaceborne observations of CO2, CO, and NO2
	Park H.; Jeong S.; Park H.; Labzovskii L.D.; Bowman K.W.
发表日期	2021
ISSN	00344257
卷号	254
英文摘要	Intensified anthropogenic activities and high levels of energy consumption in cities have led to an increase in emissions of CO2 and air pollutants, impacting air quality and calling for better measures to monitor and reduce emissions. This study assesses the emission characteristics of cities in the Northern Hemisphere during two winter seasons from December 2018 to March 2020 using a combination of CO2 observations from the Orbiting Carbon Observatory-2 (OCO-2) along with CO and NO2 observations from the Sentinel-5 Precursor TROPOspheric Monitoring Instrument (S-5P TROPOMI). We calculate the estimates of urban enhancement concentrations of CO2, CO, and NO2 from anthropogenic emissions in cities. Moreover, using ratios of CO/CO2 and NO2/CO2 according to each city, we analyze the relationship between CO2 and air pollutants and find that cities show distinct emission patterns according to where they are located in different regions of the world. Our analysis shows that a positive relationship exists in the comparisons of CO/CO2 and NO2/CO2 ratios to city population and GDP. However, when cities in the Northern Hemisphere are divided into “developed” and “developing” regions, a difference in pattern is found where most developed cities show a smaller increase of both CO/CO2 and NO2/CO2 ratios with the increase of GDP, while developing cities show a larger increase of ratios per increase of GDP. Especially, developing cities facing rapid economic development like Mumbai and Tianjin show high emission ratios that almost match that of developed cities. The higher incline of increase in emission ratios in developing cities can be attributed to the low combustion efficiency of fossil fuels along with less stringent pollution control measures. This implies that pollution control measures are crucial for effective management of air quality degradation with economic advancement within these developing cities. The analysis also highlights the importance of urban geological features in cities such as that of Tehran and Milan which can trap air pollution under appropriate meteorological conditions. Despite the short period of analysis, our study demonstrates that satellite observations of CO2 and air pollutants together can provide clues about factors controlling the co-emission of air pollutants and carbon in cities and suggests that the application of the proposed methods with longer periods of observation will support coupled air quality and climate mitigation strategies. © 2020 Elsevier Inc.
英文关键词	Air pollutants; Cities; CO2; Emission characteristics; OCO-2; TROPOMI
语种	英语
scopus关键词	Air pollution control; Air quality; Carbon; Carbon dioxide; Energy utilization; Fossil fuels; Nitrogen oxides; Orbits; Anthropogenic activity; Anthropogenic emissions; Combustion efficiencies; Emission characteristics; Meteorological condition; Monitoring instruments; Satellite observations; Spaceborne observations; Quality control; air quality; anthropogenic effect; assessment method; atmospheric pollution; carbon dioxide; carbon monoxide; economic development; emission; nitrogen dioxide; Northern Hemisphere; observational method; OCO; pollution control; Sentinel; China; India; Iran; Maharashtra; Milan [Milano]; Mumbai; Tehran [Iran]; Tianjin; Varanidae
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178993
作者单位	Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul, 08826, South Korea; Environmental Planning Institute, Seoul National University, Seoul, South Korea; R&D Satellite and Observations Group, Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States; Joint Institute for Regional Earth System Science and Engineering (JIFRESSE), University of California, Los Angeles
推荐引用方式 GB/T 7714	Park H.,Jeong S.,Park H.,et al. An assessment of emission characteristics of Northern Hemisphere cities using spaceborne observations of CO2, CO, and NO2[J],2021,254.
APA	Park H.,Jeong S.,Park H.,Labzovskii L.D.,&Bowman K.W..(2021).An assessment of emission characteristics of Northern Hemisphere cities using spaceborne observations of CO2, CO, and NO2.Remote Sensing of Environment,254.
MLA	Park H.,et al."An assessment of emission characteristics of Northern Hemisphere cities using spaceborne observations of CO2, CO, and NO2".Remote Sensing of Environment 254(2021).