| DOI: | 10.1002/2016GL069752
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| 论文题名: | Impact of turbulent mixing on isoprene chemistry |
| 作者: | Kim S.-W.; Barth M.C.; Trainer M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8854
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| EISSN: | 1944-8585
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| 出版年: | 2016
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| 卷: | 43, 期:14 | | 起始页码: | 7701
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| 结束页码: | 7708
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| 语种: | 英语
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| 英文关键词: | cloud
; hydroxyl radical
; isoprene
; LES
; NOx
; turbulence
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| Scopus关键词: | Clouds
; Large eddy simulation
; Mixing
; Nitrogen oxides
; Reaction rates
; Shock tubes
; Turbulence
; Turbulent flow
; Volatile organic compounds
; Hydroxyl radicals
; Large-scale models
; OH reaction
; OH reactivity
; Primary production
; Time-scales
; Turbulent mixing
; Isoprene
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| 英文摘要: | Isoprene, a volatile organic compound that is mainly emitted from trees, rapidly reacts with hydroxyl radical (OH) during daytime and subsequently forms ozone and aerosols in the troposphere. The isoprene-OH reaction can be affected by the interplay between chemistry and mixing because the two processes occur at a similar time scale. We investigate the impact of turbulent mixing on isoprene-OH reactivity with large eddy simulations (LES) coupled with comprehensive chemistry. Our results show that the covariance of isoprene and OH causes ~20% decrease to ~10% increase of the horizontal average reaction rate, depending on nitrogen oxides (NOx = NO + NO2) abundances, compared to the rate that neglects the covariance. This wide range of effects on reaction rates is caused by the primary production and loss reactions of OH in each NOx regime. Our research promotes the use of LES for better understanding the role of turbulence in isoprene-OH reaction and parameterizations in large-scale models. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979020319&doi=10.1002%2f2016GL069752&partnerID=40&md5=b8a71fd68ece28abddae88480944abcc
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9817
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States
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| Recommended Citation: | |
Kim S.-W.,Barth M.C.,Trainer M.. Impact of turbulent mixing on isoprene chemistry[J]. Geophysical Research Letters,2016-01-01,43(14).
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