| DOI | 10.5194/acp-21-12291-2021
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| Vehicle-induced turbulence and atmospheric pollution |
| Makar P.A.; Stroud C.; Akingunola A.; Zhang J.; Ren S.; Cheung P.; Zheng Q.
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| 发表日期 | 2021
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| ISSN | 1680-7316
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| 起始页码 | 12291
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| 结束页码 | 12316
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| 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
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| 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
(IF:5.668[JCR-2018],6.201[5-Year]) |
| 文献类型 | 期刊论文
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| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/246649
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| 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
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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).
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| 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).
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| MLA |
Makar P.A.,et al."Vehicle-induced turbulence and atmospheric pollution".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).
|
