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DOI | 10.1002/2017GL073802 |
Sensitivity of tropospheric ozone to chemical kinetic uncertainties in air masses influenced by anthropogenic and biomass burning emissions | |
Ridley, D. A.1,2; Cain, M.3; Methven, J.4; Arnold, S. R.1 | |
2017-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:14 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | We use a Lagrangian chemical transport model with a Monte Carlo approach to determine impacts of kinetic rate uncertainties on simulated concentrations of ozone, NOy and OH in a high-altitude biomass burning plume and a low-level industrial pollution plume undergoing long-range transport. Uncertainties in kinetic rate constants yield 10-12 ppbv (5th to 95th percentile) uncertainty in the ozone concentration, dominated by reactions that cycle NO and NO2, control NOx conversion to NOy reservoir species, and key reactions contributing to O-3 loss (O(D-1) + H2O, HO2 + O-3). Our results imply that better understanding of the peroxyacetylnitrate (PAN) thermal decomposition constant is key to predicting large-scale O-3 production from fire emissions and uncertainty in the reaction of NO + O-3 at low temperatures is particularly important for both the anthropogenic and biomass burning plumes. The highlighted reactions serve as a useful template for targeting new laboratory experiments aimed at reducing uncertainties in our understanding of tropospheric O-3 photochemistry. Plain Language Summary Computer models used to assess and predict how air pollution changes in response to emissions, and how it affects climate and human health, rely on information from laboratory experiments to prescribe the rates at which different atmospheric chemical species react. This laboratory information has uncertainties associated with experimental limitations or constraints. We show how these uncertainties affect confidence in model predictions of tropospheric ozone in two pollution plumes. Ozone is a key air pollutant, harmful to human health and vegetation, as well as a climate warming agent. We identify key reactions that lead to large uncertainty in simulated ozone and demonstrate the importance of low confidence in some reactions at low temperatures in driving large portion of ozone uncertainty. Our work serves as a key basis from which to motivate future lab experiments aimed at reducing uncertainty in our understanding of tropospheric ozone. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407790500043 |
WOS关键词 | ATMOSPHERIC CHEMISTRY ; TRAJECTORY ENSEMBLE ; PHOTOCHEMICAL DATA ; LAGRANGIAN MODEL ; ASIAN EMISSIONS ; NORTH-AMERICA ; UNITED-STATES ; TRANSPORT ; ATLANTIC ; YIELDS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26484 |
专题 | 气候变化 |
作者单位 | 1.Univ Leeds, Inst Climate & Atmospher Sci, Sch Earth & Environm, Leeds, W Yorkshire, England; 2.MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 3.Univ Cambridge, Ctr Atmospher Sci, Dept Chem, Cambridge, England; 4.Univ Reading, Dept Meteorol, Reading, Berks, England |
推荐引用方式 GB/T 7714 | Ridley, D. A.,Cain, M.,Methven, J.,et al. Sensitivity of tropospheric ozone to chemical kinetic uncertainties in air masses influenced by anthropogenic and biomass burning emissions[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(14). |
APA | Ridley, D. A.,Cain, M.,Methven, J.,&Arnold, S. R..(2017).Sensitivity of tropospheric ozone to chemical kinetic uncertainties in air masses influenced by anthropogenic and biomass burning emissions.GEOPHYSICAL RESEARCH LETTERS,44(14). |
MLA | Ridley, D. A.,et al."Sensitivity of tropospheric ozone to chemical kinetic uncertainties in air masses influenced by anthropogenic and biomass burning emissions".GEOPHYSICAL RESEARCH LETTERS 44.14(2017). |
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