气候变化领域集成服务门户(CCPortal): Observed Impacts of COVID-19 on Urban CO2 Emissions

CCPortal

DOI	10.1029/2020GL090037
	Observed Impacts of COVID-19 on Urban CO2 Emissions
	Turner A.J.; Kim J.; Fitzmaurice H.; Newman C.; Worthington K.; Chan K.; Wooldridge P.J.; Köehler P.; Frankenberg C.; Cohen R.C.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Governments restricted mobility and effectively shuttered much of the global economy in response to the COVID-19 pandemic. Six San Francisco Bay Area counties were the first region in the United States to issue a “shelter-in-place” order asking non-essential workers to stay home. Here we use CO2 observations from 35 Berkeley Environment, Air-quality and CO2 Network (BEACO2N) nodes and an atmospheric transport model to quantify changes in urban CO2 emissions due to the order. We infer hourly emissions at 900-m spatial resolution for 6 weeks before and 6 weeks during the order. We observe a 30% decrease in anthropogenic CO2 emissions during the order and show that this decrease is primarily due to changes in traffic (–48%) with pronounced changes to daily and weekly cycles; non-traffic emissions show small changes (–8%). These findings provide a glimpse into a future with reduced CO2 emissions through electrification of vehicles. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Air quality; Carbon dioxide; Atmospheric transport model; Global economies; Non essential; Restricted mobilities; San Francisco Bay; Shelter-in-place; Spatial resolution; Traffic emissions; Urban transportation; air quality; carbon dioxide; carbon emission; electrification; global economy; spatial resolution; spatiotemporal analysis; virus; Berkeley; California; San Francisco Bay; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169431
作者单位	Department of Earth and Planetary Sciences, University of California, Berkeley, CA, United States; College of Chemistry, University of California, Berkeley, CA, United States; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Now at Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Turner A.J.,Kim J.,Fitzmaurice H.,et al. Observed Impacts of COVID-19 on Urban CO2 Emissions[J],2020,47(22).
APA	Turner A.J..,Kim J..,Fitzmaurice H..,Newman C..,Worthington K..,...&Cohen R.C..(2020).Observed Impacts of COVID-19 on Urban CO2 Emissions.Geophysical Research Letters,47(22).
MLA	Turner A.J.,et al."Observed Impacts of COVID-19 on Urban CO2 Emissions".Geophysical Research Letters 47.22(2020).