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Insight Into Radio-Isotope I-129 Deposition in Fresh Snow at a Remote Glacier Basin of Northeast Tibetan Plateau, China
Dong, Zhiwen1,2; Shao, Yaping2; Qin, Dahe1; Zhang, Luyuan3; Hou, Xiaolin3; Wei, Ting1; Kang, Shichang1; Qin, Xiang1,4
2018-07-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
卷号45期号:13页码:6726-6733
文章类型期刊论文
摘要We present data of I-129 deposition in fresh snow in the Laohugou glacier basin, northeast Tibetan Plateau, in summer 2016 and 2017, and trace its source and elevational distribution in the troposphere. Our results show that the I-129/I-127 atomic ratios in the fresh snow on the glacier surface are about 2 orders of magnitude larger than those in the Antarctic fresh snow and 4 orders the prenuclear level, indicating a predominantly anthropogenic source of the I-129 in the mountain glacier environment of northeast Tibetan Plateau. The I-129 level in the Laohugou glacier basin is 1-2 orders of magnitude lower than at representative European locations, and not significantly higher than that observed at other sites in Asia. The I-129/I-127 atomic ratio and I-129 level show clear increases with elevation from 4,300 to 5,100m above sea level. The I-129 in the Laohugou glacier basin is probably deposited from the upper troposphere where there exists a local maximum of I-129. A conceptual model for interpretation of the observed I-129 concentration and profile in Laohugou is provided. Thus, this work is of importance in providing a more complete view on the transport, dispersion, and removal of I-129 in the atmosphere.
关键词I-129 Human Nuclear Activities Elevational Distribution Glacier Snowpack Pollution Transport In Troposphere
WOS标题词Science & Technology ; Physical Sciences
DOI10.1029/2018GL078480
关键词[WOS]ATMOSPHERIC FALLOUT ; ICE CORE ; FUKUSHIMA ; PRECIPITATION ; GERMANY ; RADIONUCLIDES ; SPECIATION ; SEAWATER ; WATERS ; JAPAN
收录类别SCI
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000439784300045
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5090
专题加速器质谱中心
通讯作者Dong, Zhiwen
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou, Gansu, Peoples R China
2.Univ Cologne, Inst Geophys & Meteorol, Cologne, Germany
3.Chinese Acad Sci, Inst Earth Environm, Xian, Shaanxi, Peoples R China
4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Qilian Mt Glacier & Ecol Environm Res Stn, Lanzhou, Gansu, Peoples R China
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Dong, Zhiwen,Shao, Yaping,Qin, Dahe,et al. Insight Into Radio-Isotope I-129 Deposition in Fresh Snow at a Remote Glacier Basin of Northeast Tibetan Plateau, China[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(13):6726-6733.
APA Dong, Zhiwen.,Shao, Yaping.,Qin, Dahe.,Zhang, Luyuan.,Hou, Xiaolin.,...&Qin, Xiang.(2018).Insight Into Radio-Isotope I-129 Deposition in Fresh Snow at a Remote Glacier Basin of Northeast Tibetan Plateau, China.GEOPHYSICAL RESEARCH LETTERS,45(13),6726-6733.
MLA Dong, Zhiwen,et al."Insight Into Radio-Isotope I-129 Deposition in Fresh Snow at a Remote Glacier Basin of Northeast Tibetan Plateau, China".GEOPHYSICAL RESEARCH LETTERS 45.13(2018):6726-6733.
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