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Variability of stalagmite-inferred Indian monsoon precipitation over the past 252,000 y
Yanjun Cai; Inez Y. Fung; R. Lawrence Edwards; Zhisheng An; Hai Cheng; Jung-Eun Lee; Liangcheng Tan
2015
发表期刊Proceedings of the National Academy of Sciences
卷号112期号:10页码:2954–2959
合作性质国际
摘要

           A speleothem δ18O record from Xiaobailong cave in southwest China characterizes changes in summer monsoon precipitation in Northeastern India, the Himalayan foothills, Bangladesh, and northern Indochina over the last 252 kyr. This record is dominated by 23-kyr precessional cycles punctuated by prominent millennial-scale oscillations that are synchronous with Heinrich events in the North Atlantic. It also shows clear glacial–interglacial variations that are consistent with marine and other terrestrial proxies but are different from the cave records in East China. Corroborated by isotope-enabled global circulation modeling, we hypothesize that this disparity reflects differing changes in atmospheric circulation and moisture trajectories associated with climate forcing as well as with associated topographic changes during glacial periods, in particular redistribution of air mass above the growing ice sheets and the exposure of the “land bridge” in the Maritime continents in the western equatorial Pacific.

关键词Indian Summer Monsoon Stalagmite Δ18o Precipitation Glacial–interglacial
学科领域大气科学 ; 地球系统科学与全球变化科学
收录类别SCI
WOS记录号WOS:000350646500030
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/2617
专题古环境研究室
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Yanjun Cai,Inez Y. Fung,R. Lawrence Edwards,et al. Variability of stalagmite-inferred Indian monsoon precipitation over the past 252,000 y[J]. Proceedings of the National Academy of Sciences,2015,112(10):2954–2959.
APA Yanjun Cai.,Inez Y. Fung.,R. Lawrence Edwards.,Zhisheng An.,Hai Cheng.,...&Liangcheng Tan.(2015).Variability of stalagmite-inferred Indian monsoon precipitation over the past 252,000 y.Proceedings of the National Academy of Sciences,112(10),2954–2959.
MLA Yanjun Cai,et al."Variability of stalagmite-inferred Indian monsoon precipitation over the past 252,000 y".Proceedings of the National Academy of Sciences 112.10(2015):2954–2959.
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