DOI: 10.1038/ngeo1708
论文题名: Links between the East Asian monsoon and North Atlantic climate during the 8,200 year event
作者: Liu Y.-H. ; Henderson G.M. ; Hu C.-Y. ; Mason A.J. ; Charnley N. ; Johnson K.R. ; Xie S.-C.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2013
卷: 6, 期: 2 起始页码: 117
结束页码: 120
语种: 英语
Scopus关键词: aridity
; chronology
; climate conditions
; cooling
; ice core
; monsoon
; paleoclimate
; precipitation (climatology)
; speleothem
; stalagmite
; teleconnection
; Arctic
; Atlantic Ocean
; Atlantic Ocean (North)
; Far East
; Greenland
; Greenland Ice Sheet
英文摘要: An abrupt cooling event in the North Atlantic region 8,200 years ago affected climate throughout the Northern Hemisphere. The event is well constrained in Greenland ice cores, but lack of resolution in records from other regions has challenged our understanding of the timing and nature of the associated teleconnections. Speleothem records from East Asia have suggested monsoonal changes associated with the 8,200 year event, but the nature of these changes remains controversial. Here we assess changes in East Asian precipitation during the event from a sub-annually resolved stalagmite record from central China. Using δ 18 O and Mg/Ca measurements of the speleothem carbonate, we show that climate dried significantly about 8,200 years ago. Based on our annual-layer-counted chronology, we show that the dry event lasted 150 years, with a central period of pronounced aridity that lasted 70 years. The duration and evolution of the event is indistinguishable from that observed in the Greenland ice cores. We therefore conclude that an effective and rapid atmospheric teleconnection exists between the North Atlantic and the monsoon system in warm climates similar to today's. © 2013 Macmillan Publishers Limited. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106865
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China; Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX23AN, United Kingdom; Department of Earth System Science, University of California, Irvine, CA 92697, United States
Recommended Citation:
Liu Y.-H.,Henderson G.M.,Hu C.-Y.,et al. Links between the East Asian monsoon and North Atlantic climate during the 8,200 year event[J]. Nature Geoscience,2013-01-01,6(2)