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Orbital-scale nonlinear response of East Asian summer monsoonto its potential driving forces in the late Quaternary
Yi,L(Yi,Liang)1; Shi,ZG(Shi,Zhengguo)2,3; Tan,LC(Tan,Liangcheng)2; Deng,CL(Deng,Chenglong)4,5; Yi,Liang
2018-03
发表期刊Climate Dynamics
卷号50期号:5-6页码:2183-2197
文章类型期刊论文
摘要We conducted a statistical study to characterize the nonlinear response of the East Asian summer monsoon (EASM) to its potential forcing factors over the last 260 ka on orbital timescales. We find that both variation in solar insolation and global ice volume were responsible for the nonlinear forcing of orbital-scale monsoonal variations, accounting for ~80% of the total variance. Specifically, EASM records with dominated precession variance exhibit a more sensitive response to changes in solar insolation during intervals of enhanced monsoon strength, but are less sensitive during intervals of reduced monsoon strength. In the case of global ice volume with 100-ka variance, this difference is not one of sensitivity but rather a difference in baseline conditions, such as the relative areas of land and sea which affected the land–sea thermal gradient. We therefore suggest that EASM records with dominated precession variance recorded the signal of a shift in the location of the Inter-tropical Convergence Zone, and the associated changes in the incidence of torrential rainfall; while for proxies with dominated 100-ka variance, it recorded changes in the land–sea thermal gradient via its effects on non-torrential precipitation.
关键词East Asian Summer Monsoon (Easm) Nonlinear Response Statistical Analysis Orbitaltimescale The Late Quaternary
DOI10.1007/s00382-017-3743-5
收录类别SCI
所属项目编号NSFC 41690112 ; 41402153 ; GASI-GEOGE-04 ; 41290254
语种英语
项目资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Programme on GlobalChange and Air–Sea Interaction of China ; National Programme on GlobalChange and Air–Sea Interaction of China ; NSFC ; NSFC
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5330
专题现代环境研究室
通讯作者Yi,Liang
作者单位1.State Key Laboratory of Marine Geology, Tongji University,Siping Road 1239#, Shanghai 200092, China
2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academyof Sciences, Xi’an 710061, China
3.CAS Center for Excellence in Tibetan Plateau EarthSciences, Beijing 100101, China
4.State Key Laboratory of Lithospheric Evolution, Instituteof Geology and Geophysics, Chinese Academy of Sciences,19# Bei-Tu-Cheng-Xi-Lu, Beijing 100029, China
5.University of Chinese Academy of Sciences, Beijing 100049,China
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Yi,L,Shi,ZG,Tan,LC,et al. Orbital-scale nonlinear response of East Asian summer monsoonto its potential driving forces in the late Quaternary[J]. Climate Dynamics,2018,50(5-6):2183-2197.
APA Yi,L,Shi,ZG,Tan,LC,Deng,CL,&Yi,Liang.(2018).Orbital-scale nonlinear response of East Asian summer monsoonto its potential driving forces in the late Quaternary.Climate Dynamics,50(5-6),2183-2197.
MLA Yi,L,et al."Orbital-scale nonlinear response of East Asian summer monsoonto its potential driving forces in the late Quaternary".Climate Dynamics 50.5-6(2018):2183-2197.
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