DOI: 10.1002/grl.50345
论文题名: Seasonal measurements of OH, NOx, and J(O1D) at Mace Head, Ireland
作者: Berresheim H. ; McGrath J. ; Adam M. ; Mauldin III R.L. ; Bohn B. ; Rohrer F.
刊名: Geophysical Research Letters
ISSN: 0094-9134
EISSN: 1944-8865
出版年: 2013
卷: 40, 期: 8 起始页码: 1659
结束页码: 1663
语种: 英语
英文关键词: Atmospheric Chemistry
; Hydroxyl Radical
; Seasonal Measurements
Scopus关键词: Atmospheric oxidation
; Hydroxyl radicals
; Linear correlation
; Long-term measurements
; OH concentration
; Ozone photolysis
; Significant differences
; Variance analysis
; Atmospheric chemistry
; Photolysis
; Nitrogen oxides
; air quality
; atmospheric motion
; concentration (composition)
; correlation
; marine atmosphere
; mixing
; nutrient cycling
; photolysis
; seasonal variation
; variance analysis
; Connacht
; County Galway
; Ireland
; Mace Head
英文摘要: Measurements of atmospheric OH concentrations were conducted between August 2010 and July 2011 at Mace Head showing maximum daytime values of 0.21 (±0.25) × 106 cm-3 in winter and 2.26 (±1.37) × 106 cm-3 in summer. Plots of OH versus ozone photolysis frequency, J(O1D), exhibited strong linear correlations with slopes of 1.06 (±0.05) × 1011 cm -3 s (R = 0.75) in clean marine air and 1.31 (±0.04) × 1011 cm-3 s (R = 0.79) in mixed marine/continental air. Surprisingly, no significant difference in the former correlation was found between low and high tide periods. NO and NO2 levels in air from the marine sector (190-300°) were typically below the detection limit (30 pptv and <200 pptv, respectively). In the land sector, NO mixing ratios <50 pptv dominated most of the time, suggesting that the atmospheric oxidation efficiency in this region is predominantly characterized by primary OH sources in a low NOx environment. Key Points First long-term measurements of OH in mid-latitude marine air are presented OH-J(O1D) correlations are determined for different NOx regimes OH variance analysis is presented for a 2-year period. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877989706&doi=10.1002%2fgrl.50345&partnerID=40&md5=f38797a56dbedcd8f088bb52525e84d8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6398
Appears in Collections: 气候减缓与适应
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作者单位: School of Physics, Center for Climate and Air Pollution Studies, National University of Ireland Galway, Galway, Ireland
Recommended Citation:
Berresheim H.,McGrath J.,Adam M.,et al. Seasonal measurements of OH, NOx, and J(O1D) at Mace Head, Ireland[J]. Geophysical Research Letters,2013-01-01,40(8).