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- Title
Centennial-scale Asian monsoon variability during the mid-Younger Dryas from Qingtian Cave, central China.
- Authors
Liu, Dianbing; Wang, Yongjin; Cheng, Hai; Kong, Xinggong; Chen, Shitao
- Abstract
Abstract: The regional climate correlation within the Northern Hemisphere in the cold/dry mid-Younger Dryas event (YD) remains elusive. A key to unraveling this issue is sufficient knowledge of the detailed climate variability at the low latitudes. Here we present a high-resolution (3-yr) δ18O record of an annually laminated stalagmite from central China that reveals a detailed Asian monsoon (AM) history from 13.36 to 10.99ka. The YD in this record is expressed as three phases, characterized by gradual onsets but rapid ends. During the mid-YD, the AM variability exhibited an increasing trend superimposed by three centennial oscillations, well-correlated to changes in Greenland temperatures. These warming/wetting fluctuations show a periodicity of ~200yr, generally in agreement with centennial changes in cosmogenic nuclides indicated by the 10Be flux from the Greenland ice. This relationship implies that centennial-scale climate changes during the mid-YD are probably caused by solar output and rapidly transported over broad regions through atmosphere reorganization.
- Subjects
NORTHERN Hemisphere; CHINA; CLIMATE change; MONSOONS; YOUNGER Dryas; CAVES; ATMOSPHERIC temperature; STALACTITES &; stalagmites; COSMOGENIC nuclides
- Publication
Quaternary Research, 2013, Vol 80, Issue 2, p199
- ISSN
0033-5894
- Publication type
Article
- DOI
10.1016/j.yqres.2013.06.009