Centennial-scale Asian monsoon variability during the mid-Younger Dryas from Qingtian Cave, central China
Centennial-scale Asian monsoon variability during the mid-Younger Dryas from Qingtian Cave, central China
复制标题
新仙女木期中期的亚洲季风百年尺度变化（青田洞）
DOI：
10.1016/j.yqres.2013.06.009
复制
发表时间：
2013-09-01
影响因子：
2.3
通讯作者：
Chen, Shitao
中科院分区：
文献类型：
--
作者：
Liu, Dianbing;Wang, Yongjin;Chen, Shitao
北方半球在寒冷/干燥的新仙女木事件（YD）中期的区域气候相关性仍然难以捉摸。解开这一问题的关键是充分了解低纬度地区详细的气候变化。在这里，我们提出了一个高分辨率（3年）三角洲O-18记录的年度层压石笋从中国中部，揭示了详细的亚洲季风（AM）的历史，从13.36至10.99万年。该记录中的YD被表示为三个阶段，其特征是逐渐开始但快速结束。在YD中期，AM变率呈现出增加的趋势叠加了三个百年振荡，以及相关的格陵兰温度的变化。这些变暖/变湿波动表现出类似于200年的周期性，一般在协议的宇宙成因核素的百年变化所示的Be-10通量从格陵兰岛的冰。这种关系意味着百年尺度的气候变化在中期YD可能是由太阳输出和迅速传输到广泛的地区通过大气重组。(c)2013年华盛顿大学。爱思唯尔公司出版All rights reserved.
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) delta O-18 record of an annually laminated stalagmite from central China that reveals a detailed Asian monsoon (AM) history from 13.36 to 10.99 ka. 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 similar to 200 yr, generally in agreement with centennial changes in cosmogenic nuclides indicated by the Be-10 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. (c) 2013 University of Washington. Published by Elsevier Inc. All rights reserved.