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Insight Into Radio-Isotope 129I Deposition in Fresh Snow at aRemote Glacier Basin of Northeast Tibetan Plateau, China
Dong,ZW(Dong,Zhiwen)1,2; Shao,YP(Shao,Yaping)2; Qin,DH(Qin,Dahe)1; Zhang,LY(Zhang,Luyuan)3; Hou,XL(Hou,Xiaolin)3; Wei,T(Wei,Ting)1; Kang,SC(Kang,Shichang)1; Qin,X(Qin,Xiang)1,4; Dong,Zhiwen
2018-07-16
Source PublicationGeophysical Research Letters
Volume45Issue:13Pages:6726-6733
Subtype期刊论文
AbstractWe present data of 129I 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 129I/127I 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 129I in the mountain glacier environment of northeast Tibetan Plateau. The 129I 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 129I/127I atomic ratio and 129I level show clear increases with elevation from 4,300 to 5,100 m above sea level. The 129I in the Laohugou glacier basin is probably deposited from the upper troposphere where there exists a local maximum of 129I. A conceptual model for interpretation of the observed 129I 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 129I in the atmosphere.
KeywordWe Presented Variation Of 129idistribution And Dispersion In Thetroposphere The Source Of The Deposited 129i Inglacier Snowpack Is Located In Theupper Troposphere a HypoThetic Model On The Transport Dispersion And Removal Of 129i In Thetroposphere Is Provided
DOI10.1029/2018GL078480
Indexed BySCI
Project Number41671062 ; 41721091 ; SKLCS-ZZ-2018 ; 2015347
Language英语
Funding OrganizationNational NaturalScience Foundation of China ; National NaturalScience Foundation of China ; USDA National Institute of Food and Agriculture ; USDA National Institute of Food and Agriculture ; State Key Laboratory ofCryosphere Sciences ; State Key Laboratory ofCryosphere Sciences ; Youth Innovation PromotionAssociation, CAS ; Youth Innovation PromotionAssociation, CAS ; West Light Program for TalentCultivation of Chinese Academy ofSciences ; West Light Program for TalentCultivation of Chinese Academy ofSciences
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5300
Collection加速器质谱中心
Corresponding AuthorDong,Zhiwen
Affiliation1.State Key Laboratory of Cryosphere Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy ofSciences, Lanzhou, China
2.Institute for Geophysics and Meteorology, University of Cologne, Cologne, Germany
3.Instituteof Earth Environment, Chinese Academy of Sciences, Xi’an, China
4.Qilian Mountain Glacier and Ecological EnvironmentResearch Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Recommended Citation
GB/T 7714
Dong,ZW,Shao,YP,Qin,DH,et al. Insight Into Radio-Isotope 129I Deposition in Fresh Snow at aRemote Glacier Basin of Northeast Tibetan Plateau, China[J]. Geophysical Research Letters,2018,45(13):6726-6733.
APA Dong,ZW.,Shao,YP.,Qin,DH.,Zhang,LY.,Hou,XL.,...&Dong,Zhiwen.(2018).Insight Into Radio-Isotope 129I Deposition in Fresh Snow at aRemote Glacier Basin of Northeast Tibetan Plateau, China.Geophysical Research Letters,45(13),6726-6733.
MLA Dong,ZW,et al."Insight Into Radio-Isotope 129I Deposition in Fresh Snow at aRemote Glacier Basin of Northeast Tibetan Plateau, China".Geophysical Research Letters 45.13(2018):6726-6733.
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