气候变化领域集成服务门户(CCPortal): Vehicle-induced turbulence and atmospheric pollution

CCPortal

DOI	10.5194/acp-21-12291-2021
	Vehicle-induced turbulence and atmospheric pollution
	Makar P.A.; Stroud C.; Akingunola A.; Zhang J.; Ren S.; Cheung P.; Zheng Q.
发表日期	2021
ISSN	1680-7316
起始页码	12291
结束页码	12316
卷号	21 期号:16
英文摘要	Theoretical models of the Earth's atmosphere adhere to an underlying concept of flow driven by radiative transfer and the nature of the surface over which the flow is taking place: heat from the sun and/or anthropogenic sources are the sole sources of energy driving atmospheric constituent transport. However, another source of energy is prevalent in the human environment at the very local scale - the transfer of kinetic energy from moving vehicles to the atmosphere. We show that this source of energy, due to being co-located with combustion emissions, can influence their vertical distribution to the extent of having a significant influence on lower-troposphere pollutant concentrations throughout North America. The effect of vehicle-induced turbulence on freshly emitted chemicals remains notable even when taking into account more complex urban radiative transfer-driven turbulence theories at high resolution. We have designed a parameterization to account for the at-source vertical transport of freshly emitted pollutants from mobile emissions resulting from vehicle-induced turbulence, in analogy to sub-grid-scale parameterizations for plume rise emissions from large stacks. This parameterization allows vehicle-induced turbulence to be represented at the scales inherent in 3D chemical transport models, allowing this process to be represented over larger regions than is currently feasible with large eddy simulation models. Including this sub-grid-scale parameterization for the vertical transport of emitted pollutants due to vehicle-induced turbulence in a 3D chemical transport model of the atmosphere reduces pre-existing North American nitrogen dioxide biases by a factor of 8 and improves most model performance scores for nitrogen dioxide, particulate matter, and ozone (for example, reductions in root mean square errors of 20 %, 9 %, and 0.5 %, respectively). © 2021 Paul A. Makar et al.
语种	英语
scopus关键词	atmospheric pollution; nitrogen dioxide; ozone; parameterization; particulate matter; traffic emission; troposphere; turbulence; North America
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/246649
作者单位	Air Quality Modelling and Integration Section, Air Quality Research Division, Atmospheric Science and Technology Directorate, Environment and Climate Change Canada, 4905 Dufferin Street, Toronto, ON M3H 5T4, Canada
推荐引用方式 GB/T 7714	Makar P.A.,Stroud C.,Akingunola A.,et al. Vehicle-induced turbulence and atmospheric pollution[J],2021,21(16).
APA	Makar P.A..,Stroud C..,Akingunola A..,Zhang J..,Ren S..,...&Zheng Q..(2021).Vehicle-induced turbulence and atmospheric pollution.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Makar P.A.,et al."Vehicle-induced turbulence and atmospheric pollution".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).