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Levoglucosan evidence for biomass burning records over Tibetan glaciers
You, C (You, Chao)1,2,3; Xu, C (Xu, Chao)1,2,3; Xu, BQ (Xu, Baiqing)1,2; Zhao, HB (Zhao, Huabiao)1,2; Song, LL (Song, Lili)4; You, C
Source PublicationENVIRONMENTAL POLLUTION
2016
Volume216Issue:0Pages:173-181
DOI10.1016/j.envpol.2016.05.074
AbstractIntense biomass burning (BB) events are widespread in tropical and subtropical Asia. However, the impact of BB aerosols on the Tibetan Plateau (TP), especially on Tibetan glaciers, is poorly understood. In this study, BB signals are revealed using the specific molecular tracer levoglucosan in snow and ice samples from different Tibetan glaciers. Tibetan glaciers mainly act as receptors of BB emissions from surrounding regions. Significant differences in levoglucosan concentrations in glacier samples collected from two slopes on the same mountain range indicate that high mountains can act as natural barriers to block the transport of smoke aerosols to the TP. Levoglucosan concentrations show a decreasing trend from west to east on glaciers impacted by the Indian summer monsoon on the southern edge of the TP, while the opposite pattern was observed on glaciers under the prevailing westerlies along the northern edge. The emission sources, the controlling climate system, as well as deposition and degradation during transport determined the spatial distribution regimes of levoglucosan concentration on Tibetan glaciers. (C) 2016 Elsevier Ltd. All rights reserved.
Subject Area自然地理学
WOS IDWOS:000383930500020
Language英语
Indexed BySCI
KeywordQuadrupole Mass-spectrometry Ice-core South-asia Carbonaceous Aerosols Air-pollution Plateau Emissions Himalayas China Transport
Cooperation Status国内
Department环境
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7613
Collection图书馆
Corresponding AuthorYou, C
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
You, C ,Xu, C ,Xu, BQ ,et al. Levoglucosan evidence for biomass burning records over Tibetan glaciers[J]. ENVIRONMENTAL POLLUTION,2016,216(0):173-181.
APA You, C ,Xu, C ,Xu, BQ ,Zhao, HB ,Song, LL ,&You, C.(2016).Levoglucosan evidence for biomass burning records over Tibetan glaciers.ENVIRONMENTAL POLLUTION,216(0),173-181.
MLA You, C ,et al."Levoglucosan evidence for biomass burning records over Tibetan glaciers".ENVIRONMENTAL POLLUTION 216.0(2016):173-181.
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