DOI: 10.1002/2016GL070203
论文题名: Trends of perchlorate in Antarctic snow: Implications for atmospheric production and preservation in snow
作者: Jiang S. ; Cox T.S. ; Cole-Dai J. ; Peterson K.M. ; Shi G.
刊名: Geophysical Research Letters
ISSN: 0094-8608
EISSN: 1944-8339
出版年: 2016
卷: 43, 期: 18 起始页码: 9913
结束页码: 9919
语种: 英语
英文关键词: Antarctic snow
; atmospheric perchlorate production
; postdepositional loss
; stratospheric chlorine
; stratospheric ozone
Scopus关键词: Atmospheric chemistry
; Chlorine
; Domes
; Hole concentration
; Ozone
; Ozone layer
; Poles
; Snow
; Antarctic ozone hole
; Chlorine emissions
; Perchlorate concentration
; Production rates
; Snow accumulation
; Spatial variations
; Stratospheric chemistry
; Stratospheric ozone
; Inorganic compounds
英文摘要: Perchlorate concentration ranges from a few to a few hundred ng kg−1 in surface and shallow-depth snow at three Antarctic locations (South Pole, Dome A, and central West Antarctica), with significant spatial variations dependent on snow accumulation rate and/or atmospheric production rate. An obvious trend of increasing perchlorate since the 1970s is seen in South Pole snow. The trend is possibly the result of stratospheric chlorine levels elevated by anthropogenic chlorine emissions; this is supported by the timing of a similar trend at Dome A. Alternatively, the trend may stem from postdepositional loss of snowpack perchlorate or a combination of both. The possible impact of stratospheric chlorine is consistent with evidence of perchlorate production in the stratosphere. Additionally, perchlorate concentration appears to be directly affected by the springtime Antarctic ozone hole. Therefore, perchlorate variations in Antarctic snow are likely linked to stratospheric chemistry and ozone over the Antarctic. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992437507&doi=10.1002%2f2016GL070203&partnerID=40&md5=d5ffd2464eaa6ddf69f70062fcc03b36
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9571
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Key Laboratory for Polar Science of State Oceanic Administration, Polar Research Institute of China, Shanghai, China
Recommended Citation:
Jiang S.,Cox T.S.,Cole-Dai J.,et al. Trends of perchlorate in Antarctic snow: Implications for atmospheric production and preservation in snow[J]. Geophysical Research Letters,2016-01-01,43(18).