DOI: 10.1002/grl.50659
论文题名: The preservation of atmospheric nitrate in snow at Summit, Greenland
作者: Fibiger D.L. ; Hastings M.G. ; Dibb J.E. ; Huey L.G.
刊名: Geophysical Research Letters
ISSN: 0094-8829
EISSN: 1944-8560
出版年: 2013
卷: 40, 期: 13 起始页码: 3484
结束页码: 3489
语种: 英语
英文关键词: Greenland
; isotope
; nitrate
; photolysis
Scopus关键词: Atmospheric nitrates
; Greenland
; High temporal frequency
; Isotopic composition
; Isotopic signatures
; Linear relationships
; Oxygen isotopic composition
; Surface process
; Isotopes
; Nitrates
; Nitrogen oxides
; Oxygen
; Photolysis
; Snow making
; Loading
; atmospheric deposition
; ice core
; isotopic composition
; nitrate
; nitrogen oxides
; oxygen isotope
; ozone
; photolysis
; preservation
; snow
; stratosphere
; Arctic
; Greenland
; Summit
英文摘要: There is great interest in using nitrate (NO3 -) isotopic composition in ice cores to track the history of precursor nitrogen oxides (NOx = NO + NO2) in the atmosphere. NO 3 -, however, can be lost from the snow by surface processes, such as photolysis back to NOx upon exposure to sunlight, making it difficult to interpret records of NO3 - as a tracer of atmospheric NOx loading. In a campaign consisting of two field seasons (May-June) at Summit, Greenland, high temporal frequency surface snow samples were collected and analyzed for the oxygen isotopic composition of NO3 -. The strong, linear relationship observed between the oxygen isotopes of NO3 -, in both 2010 and 2011, is difficult to explain in the presence of significant postdepositional processing of NO3 -, unless several unrelated variables change in concert. Therefore, the isotopic signature of NO3 - in the snow at Summit is most feasibly explained as preserved atmospheric NO 3 - deposition. Key Points Atmospheric nitrate is preserved in snow at Summit, Greenland Oxygen isotope results suggest stratospheric O3 influences nitrate formation A strong, linear relationship was found between 18-O and 17-O in nitrate ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880834715&doi=10.1002%2fgrl.50659&partnerID=40&md5=5fdba697fce78298f105e5a3f96f69fb
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6093
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemistry, Brown University, 324 Brook St., Providence, RI 02912, United States
Recommended Citation:
Fibiger D.L.,Hastings M.G.,Dibb J.E.,et al. The preservation of atmospheric nitrate in snow at Summit, Greenland[J]. Geophysical Research Letters,2013-01-01,40(13).