DOI: 10.1016/j.atmosenv.2015.10.088
Scopus记录号: 2-s2.0-84946710376
论文题名: Global modeling of the C1-C3 alkyl nitrates using STOCHEM-CRI
作者: Khan M ; A ; H ; , Cooke M ; C ; , Utembe S ; R ; , Morris W ; C ; , Archibald A ; T ; , Derwent R ; G ; , Jenkin M ; E ; , Orr-Ewing A ; J ; , Higgins C ; M ; , Percival C ; J ; , Leather K ; E ; , Shallcross D ; E
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 123 起始页码: 256
结束页码: 267
语种: 英语
英文关键词: Atmospheric life-times
; Global burden
; Long-range transport
; Photochemical production
Scopus关键词: Agents
; Atmospheric movements
; Boundary layers
; Budget control
; Nitrates
; Nitrogen compounds
; Air-sea exchange process
; Anthropogenic emissions
; Chemistry transport model
; Global burden
; Life-times
; Long range transport
; Marine boundary layers
; Photochemical production
; Atmospheric chemistry
; alkyl group
; nitric acid derivative
; anthropogenic source
; atmospheric modeling
; boundary layer
; global change
; long range transport
; mixing ratio
; nitrate
; nitrous oxide
; Northern Hemisphere
; oxidation
; photochemistry
; rainforest
; Southern Hemisphere
; three-dimensional modeling
; volatile organic compound
; Article
; atmospheric deposition
; nonbiological model
; photochemistry
; priority journal
; rain forest
; troposphere
; Amazonia
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The atmospheric global budget and distribution of C1-C3 alkyl nitrates have been investigated using a global three-dimensional chemistry transport model, STOCHEM-CRI. Alkyl nitrates (RONO2) are significant NOx reservoir species and the more detailed VOC oxidation mechanism (CRI v2-R5) leads to greater photochemical production. RONO2 are significant sources of NOx in regions remote from NOx sources. The study shows that the global burden and the atmospheric life-time of C1-C3 alkyl nitrates are 113 Gg and 9-10 days, respectively, which are in excellent agreement with estimates established by previous studies. The abundance of alkyl nitrates have been found to be higher in the continental atmosphere, with CH3ONO2 mixing ratios up to 20 ppt over the Amazon rainforest. Up to 15, 10, 2, and 5 ppt of modelled CH3ONO2, C2H5ONO2, n-C3H7ONO2 and i-C3H7ONO2 have been found in the northern hemisphere over regions with large anthropogenic emissions of NOx and VOCs. The combination of atmospheric production and long-range transport led to high alkyl nitrate levels at high latitudes. The model performance for C1-C3 alkyl nitrates was established using observations from nine flights and nine field campaigns. The comparison shows a tendency towards model under-prediction of the observations, particularly in the southern hemispheric marine boundary layer, possibly due to the absence of oceanic production mechanisms and air-sea exchange processes in the model. The discrepancies between model and observed seasonal cycles, especially of CH3ONO2, in both hemispheres are discussed. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81344
Appears in Collections: 气候变化事实与影响
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作者单位: Atmospheric Chemistry Research Group, School of Chemistry, University of Bristol, Cantock's Close, Bristol, United Kingdom; Rdscientific, Newbury, Berkshire, United Kingdom; Atmospheric Chemistry Services, Okehampton, Devon, United Kingdom; The Centre for Atmospheric Science, The School of Earth, Atmospheric and Environmental Science, The University of Manchester, Simon Building, Brunswick Street, Manchester, United Kingdom; The Met Office, FitzRoy Road, Exeter, Devon, United Kingdom; The School of Earth Sciences, University of Melbourne, Parkville, VIC, Australia; The NCAS-Climate and the Centre for Atmospheric Science, University of Cambridge, Cambridge, United Kingdom
Recommended Citation:
Khan M,A,H,et al. Global modeling of the C1-C3 alkyl nitrates using STOCHEM-CRI[J]. Atmospheric Environment,2015-01-01,123