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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
Source PublicationProceedings of the National Academy of Sciences
Volume112Issue:10Pages:2954–2959
Cooperation Status国际
Abstract

           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.

KeywordIndian Summer Monsoon Stalagmite Δ18o Precipitation Glacial–interglacial
Subject Area大气科学 ; 地球系统科学与全球变化科学
Indexed BySCI
WOS IDWOS:000350646500030
Citation statistics
Cited Times:56[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/2617
Collection古环境研究室
Recommended Citation
GB/T 7714
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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