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学科主题: 地理学::自然地理学
题名: Levoglucosan evidence for biomass burning records over Tibetan glaciers
作者: 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
通讯作者: You, C
关键词: QUADRUPOLE MASS-SPECTROMETRY ; ICE-CORE ; SOUTH-ASIA ; CARBONACEOUS AEROSOLS ; AIR-POLLUTION ; PLATEAU ; EMISSIONS ; HIMALAYAS ; CHINA ; TRANSPORT
刊名: ENVIRONMENTAL POLLUTION
发表日期: 2016
DOI: 10.1016/j.envpol.2016.05.074
卷: 216, 期:0, 页:173-181
收录类别: SCI
合作性质: 国内
文章类型: Article
部门归属: 环境
英文摘要: Intense 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.
语种: 英语
WOS记录号: WOS:000383930500020
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7613
Appears in Collections:图书馆_期刊论文

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作者单位: 1.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:
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.
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