气候变化领域集成服务门户(CCPortal): Performance evaluation of a multiscale modelling system applied to particulate matter dispersion in a real traffic hot spot in Madrid (Spain)

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DOI	10.1016/j.apr.2019.10.001
	Performance evaluation of a multiscale modelling system applied to particulate matter dispersion in a real traffic hot spot in Madrid (Spain)
	Santiago J.L.; Sanchez B.; Quaassdorff C.; de la Paz D.; Martilli A.; Martín F.; Borge R.; Rivas E.; Gómez-Moreno F.J.; Díaz E.; Artiñano B.; Yagüe C.; Vardoulakis S.
发表日期	2020
ISSN	13091042
卷号	11 期号:1
英文摘要	Urban air pollution is one of the most important environmental problems nowadays. Understanding urban pollution is rather challenging due to different factors that produce a strongly heterogeneous pollutant distribution within streets. Observed concentrations depend on processes occurring at a wide range of spatial and temporal scales, complex wind flow and turbulence patterns induced by urban obstacles and irregular traffic emissions. The main objective of this paper is to model particulate matter dispersion at microscale while considering the effects of mesoscale processes. Computational Fluid Dynamic (CFD) PM10 simulations were performed taking into account high spatial resolution traffic emissions from a microscale traffic model and inlet vertical profiles of meteorological variables from Weather Research and Forecasting (WRF) model. This modelling system is evaluated by using meteorological and PM10 concentration data from intensive experimental campaigns carried out on 25th February and 6th July, 2015 in a real urban traffic hot-spot in Madrid. The effect of uncertainties in the inlet profiles from mesoscale input data on microscale results is assessed. Additionally, the importance of the sensible surface heat fluxes (SHF) provided by WRF and the selection of an appropriate turbulent Schmidt number in the dispersion equation are investigated. The main conclusion is that the modelling system accurately reproduces PM10 dispersion imposing appropriate inputs (meteorological variables and SHF) and a suitable turbulent Schmidt number. Better agreement is found for simulation with a low turbulent Schmidt number. This approach improves the standard microscale modelling alone because more realistic boundary conditions and mesoscale processes are considered. © 2019 Turkish National Committee for Air Pollution Research and Control
英文关键词	Computational fluid dynamic (CFD) modelling; Microscale traffic emissions; Multiscale modelling; PM10; Turbulent schmidt number; Weather research and forecasting (WRF) model
语种	英语
来源期刊	Atmospheric Pollution Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120680
作者单位	Atmospheric Pollution Division, Environmental Department, CIEMAT, Spain; Laboratory of Environmental Modelling, Universidad Politécnica de Madrid (UPM), Madrid, Spain; Department of Earth Physics and Astrophysics, Universidad Complutense de Madrid (UCM), Faculty of Physical Sciences, Spain; National Centre for Epidemiology and Population Health, Research School of Population Health, Australian National University, Canberra, Australia; Department of Geography, National University of Singapore, Singapore
推荐引用方式 GB/T 7714	Santiago J.L.,Sanchez B.,Quaassdorff C.,et al. Performance evaluation of a multiscale modelling system applied to particulate matter dispersion in a real traffic hot spot in Madrid (Spain)[J],2020,11(1).
APA	Santiago J.L..,Sanchez B..,Quaassdorff C..,de la Paz D..,Martilli A..,...&Vardoulakis S..(2020).Performance evaluation of a multiscale modelling system applied to particulate matter dispersion in a real traffic hot spot in Madrid (Spain).Atmospheric Pollution Research,11(1).
MLA	Santiago J.L.,et al."Performance evaluation of a multiscale modelling system applied to particulate matter dispersion in a real traffic hot spot in Madrid (Spain)".Atmospheric Pollution Research 11.1(2020).