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DOI10.1002/2016JD024904
Effects of sources, transport, and postdepositional processes on levoglucosan records in southeastern Tibetan glaciers
You, Chao; Yao, Tandong; Xu, Baiqing; Xu, Chao; Zhao, Huabiao; Song, Lili
发表日期2016
ISSN2169-897X
卷号121期号:14页码:8701-8711
英文摘要

Tibetan 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.


语种英语
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000381632100033
来源期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构中国科学院青藏高原研究所
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/366
推荐引用方式
GB/T 7714
You, Chao,Yao, Tandong,Xu, Baiqing,et al. Effects of sources, transport, and postdepositional processes on levoglucosan records in southeastern Tibetan glaciers[J]. 中国科学院青藏高原研究所,2016,121(14):8701-8711.
APA You, Chao,Yao, Tandong,Xu, Baiqing,Xu, Chao,Zhao, Huabiao,&Song, Lili.(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, Chao,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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