气候变化领域集成服务门户(CCPortal): Data assimilation methods for urban air quality at the local scale

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DOI	10.1016/j.atmosenv.2021.118366
	Data assimilation methods for urban air quality at the local scale
	Nguyen C.V.; Soulhac L.
发表日期	2021
ISSN	1352-2310
卷号	253
英文摘要	Despite their wide applications in many fields of environmental sciences, data assimilation methods are still poorly adopted for the numerical simulation of pollutant dispersion at the local urban scale. In this study, we compare three data assimilation methods to evaluate the air quality at the local urban scale. The data assimilation methods used here are the Bias Ajustment Techniques, the Best Linear Unbiased Estimator, and the Source Apportionment Least Square method. We assess their performances on air pollution simulations in Lyon for the year 2008, focusing on ground-level NO2 hourly concentrations. The results indicate that the three methods improve air quality estimates and that their performances are similar. This study shows that data assimilation is a promising tool to ameliorate air quality simulations at the urban scale. © 2021 Elsevier Ltd
关键词	Air quality Data assimilation Urban dispersion model
语种	英语
scopus关键词	Atmospheric movements; Least squares approximations; Numerical methods; Data assimilation; Data assimilation methods; Environmental science data; Local scale; Performance; Pollutant dispersions; Unbiased estimator; Urban air quality; Urban dispersion models; Urban scale; Air quality; nitrogen dioxide; air quality; atmospheric pollution; concentration (composition); data assimilation; dispersion; ground-based measurement; least squares method; methodology; source apportionment; urban area; air pollutant; air pollution; air quality; airflow; Article; canopy; case study; dispersion; least square analysis; meteorology; priority journal; urban area; Auvergne-Rhone-Alpes; France; Grand Lyon; Lyons
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248479
作者单位	Laboratoire de Mécanique des Fluides et d'Acoustique, University of Lyon, CNRS UMR 5509 Ecole Centrale de Lyon, INSA Lyon, Université Claude Bernard, 36, avenue Guy de Collongue, Ecully, 69134, France
推荐引用方式 GB/T 7714	Nguyen C.V.,Soulhac L.. Data assimilation methods for urban air quality at the local scale[J],2021,253.
APA	Nguyen C.V.,&Soulhac L..(2021).Data assimilation methods for urban air quality at the local scale.ATMOSPHERIC ENVIRONMENT,253.
MLA	Nguyen C.V.,et al."Data assimilation methods for urban air quality at the local scale".ATMOSPHERIC ENVIRONMENT 253(2021).