气候变化领域集成服务门户(CCPortal): Estimating vehicle carbon dioxide emissions from Boulder; Colorado; using horizontal path-integrated column measurements

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DOI	10.5194/acp-19-4177-2019
	Estimating vehicle carbon dioxide emissions from Boulder; Colorado; using horizontal path-integrated column measurements
	Waxman E.M.; Cossel K.C.; Giorgetta F.; Truong G.-W.; Swann W.C.; Coddington I.; Newbury N.R.
发表日期	2019
ISSN	16807316
起始页码	4177
结束页码	4192
卷号	19 期号:7
英文摘要	We performed 7.5 weeks of path-integrated concentration measurements of CO2, CH4, H2O, and HDO over the city of Boulder, Colorado. An open-path dual-comb spectrometer simultaneously measured time-resolved data across a reference path, located near the mountains to the west of the city, and across an over-city path that intersected two-thirds of the city, including two major commuter arteries. By comparing the measured concentrations over the two paths when the wind is primarily out of the west, we observe daytime CO2 enhancements over the city. Given the warm weather and the measurement footprint, the dominant contribution to the CO2 enhancement is from city vehicle traffic. We use a Gaussian plume model combined with reported city traffic patterns to estimate city emissions of on-road CO2 as (6.2±2.2) × 105 metric tons (t) CO2 yrĝ'1 after correcting for non-traffic sources. Within the uncertainty, this value agrees with the city's bottom-up greenhouse gas inventory for the on-road vehicle sector of 4.5×105 t CO2 yrĝ'1. Finally, we discuss experimental modifications that could lead to improved estimates from our path-integrated measurements. © 2019 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	carbon emission; carbon footprint; concentration (composition); emission inventory; Gaussian method; greenhouse gas; spectrometry; traffic emission; Boulder; Colorado; United States
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/144519
作者单位	Applied Physics Division, Physical Measurement Laboratory, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, United States; Crystalline Mirror Solutions LLC, Santa Barbara, CA 93101, United States
推荐引用方式 GB/T 7714	Waxman E.M.,Cossel K.C.,Giorgetta F.,et al. Estimating vehicle carbon dioxide emissions from Boulder; Colorado; using horizontal path-integrated column measurements[J],2019,19(7).
APA	Waxman E.M..,Cossel K.C..,Giorgetta F..,Truong G.-W..,Swann W.C..,...&Newbury N.R..(2019).Estimating vehicle carbon dioxide emissions from Boulder; Colorado; using horizontal path-integrated column measurements.Atmospheric Chemistry and Physics,19(7).
MLA	Waxman E.M.,et al."Estimating vehicle carbon dioxide emissions from Boulder; Colorado; using horizontal path-integrated column measurements".Atmospheric Chemistry and Physics 19.7(2019).