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Astronomical and glacial forcing of East Asian summer monsoonvariability
Sun,YB(Sun,Youbin)[1,2]; Kutzbach,J(Kutzbach,John)[3]; An,ZS(An,Zhisheng)[1,2]; Clemens,S(Clemens,Steven)[4]; Liu,ZY(Liu,Zhengyu)[3]; Liu,WG(Liu,Weiguo)[1]; Liu,XD(Liu,Xiaodong)[1]; Shi,ZG(Shi,Zhengguo)[1]; Zheng,WP(Zheng,Weipeng)[5]; Liang,LJ(Liang,Lianji)[1]; Yan,Y(Yan,Yan)[1]; Li,Y(Li,Ying)[1]
2015-03-01
发表期刊Quaternary Science Reviews
卷号115页码:132-142
文章类型期刊论文
摘要

The dynamics of glacialeinterglacial monsoon variability can be attributed to orbitally induced changes in summer insolation and internal boundary conditions. However, the relative impacts of astronomical and internal factors on East Asian summer monsoon variability remain controversial. Here we combine proxy data and model results to evaluate the response of East Asian summer monsoon change to these forcings. d13C of loess carbonate, a sensitive summer monsoon proxy from the western Chinese Loess Plateau, demonstrates coexistence of distinct 100-, 41- and 23-ka periods, in contrast to precession-dominated speleothem d18O records in South China. Model results indicate that insolation, ice and CO2 have distinct impacts on summer precipitation changes in East Asia, whereas their relative impacts are spatially different, with a relatively stronger insolation effect in south China and a more dominant ice/CO2 influence in north China. Combined proxy data and model results indicate that East Asian summer monsoon variability was induced by integrated effects of summer insolation and changing boundary conditions (e.g., ice sheets and CO2 concentration). Our proxy-model comparison further suggests that gradual weakening of the summer monsoon related to slowly decreasing summer insolation at astronomical timescales will be likely overwhelmed by the projected ongoing anthropogenic CO2 emissions.

关键词Chinese Loess East Asian Summer Monsoon Insolation Ice-sheets Co2 Variability And Dynamics
DOI10.1016/j.quascirev.2015.03.009
收录类别SCI
语种英语
引用统计
被引频次:36[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/361006/9434
专题古环境研究室
作者单位1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710061, China;
2.Joint Center for Global Change Studies, Beijing 100875, China;
3.Center for Climatic Research, University of Wisconsin-Madison, Madison, WI 53706, USA;
4.Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912-1846, USA;
5.Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
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GB/T 7714
Sun,YB,Kutzbach,J,An,ZS,et al. Astronomical and glacial forcing of East Asian summer monsoonvariability[J]. Quaternary Science Reviews,2015,115:132-142.
APA Sun,YB.,Kutzbach,J.,An,ZS.,Clemens,S.,Liu,ZY.,...&Li,Y.(2015).Astronomical and glacial forcing of East Asian summer monsoonvariability.Quaternary Science Reviews,115,132-142.
MLA Sun,YB,et al."Astronomical and glacial forcing of East Asian summer monsoonvariability".Quaternary Science Reviews 115(2015):132-142.
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