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Effects of sources, transport, and postdepositional processes on levoglucosan records in southeastern Tibetan glaciers
You, C (You, Chao)1,2,3; Yao, TD (Yao, Tandong)1,2; Xu, BQ (Xu, Baiqing)1,2; Xu, C (Xu, Chao)1,2,3; Zhao, HB (Zhao, Huabiao)1,2; Song, LL (Song, Lili)4; You, C
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2016
Volume121Issue:14Pages:8701-8711
DOI10.1002/2016JD024904
AbstractTibetan glaciers are substantially influenced by smoke aerosols derived from intensive biomass burning (BB) emissions in surrounding regions. However, knowledge regarding the impact of smoke aerosols on Tibetan glaciers is limited. Here we present levoglucosan records extracted from two southeastern Tibetan (SET) glaciers. We found that Zuoqiupu (ZQP) Glacier, situated on the windward side of the mountains, is more strongly affected by BB aerosols when compared with Cuopugou (CPG) Glacier on the leeward side. On ZQP Glacier, the highest levoglucosan concentration was detected at an elevation near the equilibrium line altitude. The injection height of smoke plumes and the actions of postdepositional processes on the glacier surface determined the distribution patterns of levoglucosan concentrations at different altitudes. Spatiotemporal variability in levoglucosan and black carbon distributions after deposition may be caused by the different source characteristics and by different postdepositional geochemical behaviors on the glacier surface. Intense wildfires can lead to extremely high concentrations (higher than 25ngmL(-1)) of black carbon in ice near the surface of SET glaciers and can therefore play an important role in glacial melt during the premonsoon season.
Subject Area自然地理学
WOS IDWOS:000381632100033
Language英语
Indexed BySCI
KeywordQuadrupole Mass-spectrometry Fire Emission Heights Black Carbon Ice Core Climate System Organic-carbon Snow Samples Plateau Aerosol Asia
Cooperation Status国内
Department环境
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7656
Collection图书馆
Corresponding AuthorYou, C
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China
Recommended Citation
GB/T 7714
You, C ,Yao, TD ,Xu, BQ ,et al. Effects of sources, transport, and postdepositional processes on levoglucosan records in southeastern Tibetan glaciers[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2016,121(14):8701-8711.
APA You, C .,Yao, TD .,Xu, BQ .,Xu, C .,Zhao, HB .,...&You, C.(2016).Effects of sources, transport, and postdepositional processes on levoglucosan records in southeastern Tibetan glaciers.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,121(14),8701-8711.
MLA You, C ,et al."Effects of sources, transport, and postdepositional processes on levoglucosan records in southeastern Tibetan glaciers".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 121.14(2016):8701-8711.
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