DOI: 10.1002/grl.50154
论文题名: First investigations of IO, BrO, and NO<inf>2</inf> summer atmospheric levels at a coastal East Antarctic site using mode-locked cavity enhanced absorption spectroscopy
作者: Grilli R. ; Legrand M. ; Kukui A. ; Méjean G. ; Preunkert S. ; Romanini D.
刊名: Geophysical Research Letters
ISSN: 0094-9300
EISSN: 1944-9031
出版年: 2013
卷: 40, 期: 4 起始页码: 791
结束页码: 796
语种: 英语
英文关键词: Antarctica
; Atmospheric oxidants
; Radicals
Scopus关键词: Atmospheric chemistry
; Nitrogen compounds
; Antarctic stations
; Antarctica
; Atmospheric levels
; Atmospheric oxidants
; Cavity enhanced absorption spectroscopy
; Laser spectrometers
; Marine boundary layers
; Radicals
; Nitrogen oxides
; atmospheric chemistry
; boundary layer
; coastal zone
; halogen
; mixing ratio
; oxidation
; Antarctica
; Dumont d'Urville
; East Antarctica
英文摘要: IO, BrO, and NO2 were measured for the first time at Dumont d'Urville (East Antarctic coast) during summer 2011/2012 by using a near-UV-Visible laser spectrometer based on mode-locked cavity-enhanced absorption spectroscopy. IO mixing ratios ranged from the 2σ detection limit (0.04 pptv) up to 0.15 pptv. BrO remained close or below the detection limit (2 pptv) of the instrument. Daily averaged NO2 values ranged between the detection limit (10 pptv) and 60 pptv being far higher than levels of a few pptv commonly observed in the remote marine boundary layer. Data are discussed and compared with those available for another coastal Antarctic station (Halley, West Antarctica). It is shown that the oxidative capacity of the atmospheric boundary layer at coastal Antarctic sites is quite different in nature from West to East Antarctica, with the halogen chemistry being promoted at West and the OH chemistry at East. Key Points First measurements of IO, BrO and NO2 at East Antarctica ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878167354&doi=10.1002%2fgrl.50154&partnerID=40&md5=edeef912719be9df6182fb05903f4c44
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6564
Appears in Collections: 气候减缓与适应
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作者单位: UJF - Grenoble 1, CNRS, LIPhy UMR 5588, Grenoble, France
Recommended Citation:
Grilli R.,Legrand M.,Kukui A.,et al. First investigations of IO, BrO, and NO<inf>2</inf> summer atmospheric levels at a coastal East Antarctic site using mode-locked cavity enhanced absorption spectroscopy[J]. Geophysical Research Letters,2013-01-01,40(4).