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Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China
Zheng, Yanhong1; Pancost, Richard D.2; Liu, Xiaodong3; Wang, Zhangzhang1; Naafs, B. D. A.2; Xie, Xiaoxun3; Liu, Zhao4; Yu, Xuefeng3; Yang, Huan5
2017-11-01
发表期刊GEOLOGY
卷号45期号:11页码:1031-1034
文章类型Article
摘要Variations in atmospheric circulation across the last deglaciation in the northernmost monsoon-influenced regions of Asia are not well constrained, highlighting a fundamental gap in our understanding of Asian climate. Here we reconstruct continental air temperatures for northeast China across the last deglaciation (past 16 k. y.), based on the distribution of bacterial branched glycerol dialkyl glycerol tetraethers in a sequence of the Hani peat (Jilin Province, northeast China). Our results indicate large (as much as 10 degrees C) oscillations in temperature in northeast China across the deglaciation, oscillations significantly larger than observed in other temperature records from low-latitude or same-latitude East Asia, but consistent with climate model simulations. This enhanced magnitude, as well as the timing of temperature variations, provides evidence for atmospheric teleconnections with high latitudes; in particular, we suggest that highlatitude cooling associated with Arctic ice expansion and changes in Atlantic Meridional Overturning Circulation enhanced the intensity and lowered the temperature of Eurasian mid-latitude westerlies and northwesterly winds over East Asia during the last glacial, delivering cold air masses to northeast China. During the deglaciation the westerlies and therefore delivery of cold air masses weakened, amplifying the deglacial warming in this region. We conclude that changes in North Atlantic climate had a particularly strong impact on the northernmost parts of the East Asian monsoon-influenced area.
WOS标题词Science & Technology ; Physical Sciences
DOI10.1130/G39401.1
关键词[WOS]LAST DEGLACIATION ; EAST-ASIA ; TEMPERATURE ; RECONSTRUCTION ; PRECIPITATION ; VARIABILITY ; RECORDS
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geology
WOS记录号WOS:000414366200020
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5391
专题科技外事处
作者单位1.Northwest Univ Xian, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China
2.Univ Bristol, Cabot Inst, Sch Chem, Organ Geochem Unit, Bristol BS8 1TS, Avon, England
3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
4.Xian Polytech Univ, Sch Environm & Chem Engn, Xian 710048, Shaanxi, Peoples R China
5.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Hubei, Peoples R China
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Zheng, Yanhong,Pancost, Richard D.,Liu, Xiaodong,et al. Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China[J]. GEOLOGY,2017,45(11):1031-1034.
APA Zheng, Yanhong.,Pancost, Richard D..,Liu, Xiaodong.,Wang, Zhangzhang.,Naafs, B. D. A..,...&Yang, Huan.(2017).Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China.GEOLOGY,45(11),1031-1034.
MLA Zheng, Yanhong,et al."Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China".GEOLOGY 45.11(2017):1031-1034.
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