Late Holocene anti-phase change in the East Asian summer and winter monsoons

QUATERNARY SCIENCE REVIEWS

卷:188

Article

Kang, Shugang¹  Wang, Xulong¹  Roberts, Helen M.²  Duller, Geoff A. T.²  Cheng, Peng¹  Lu, Yanchou¹  An, Zhisheng¹ 

[1] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China

[2] Aberystwyth Univ, Dept Geog & Earth Sci, Aberystwyth SY23 3DB, Ceredigion, Wales

关键词: Holocene;    Chinese loess;    Quartz OSL;    East Asian summer monsoon;    East Asian winter monsoon;    Insolation;    Solar activity;   

DOI  :  10.1016/j.quascirev.2018.03.028

来源: Elsevier

【 摘 要 】

Changes in East Asian summer and winter monsoon intensity have played a pivotal role in the prosperity and decline of society in the past, and will be important for future climate scenarios. However, the phasing of changes in the intensity of East Asian summer and winter monsoons on millennial and centennial timescales during the Holocene is unclear, limiting our ability to understand the factors driving past and future changes in the monsoon system. Here, we present a high resolution (up to multidecadal) loess record for the last 3.3 ka from the southern Chinese Loess Plateau that clearly demonstrates the relationship between changes in the intensity of the East Asian summer and winter monsoons, particularly at multicentennial scales. At multimillennial scales, the East Asian summer monsoon shows a steady weakening, while the East Asian winter monsoon intensifies continuously. At multicentennial scales, a prominent similar to 700-800 yr cycle in the East Asian summer and winter monsoon intensity is observed, and here too the two monsoons are anti-phase. We conclude that multimillennial changes are driven by Northern Hemisphere summer insolation, while multicentennial changes can be correlated with solar activity and changing strength of the Atlantic meridional overturning circulation. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

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