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Orbital-scale nonlinear response of East Asian summer monsoon to its potential driving forces in the late Quaternary
Yi, Liang1; Shi, Zhengguo2,3; Tan, Liangcheng2; Deng, Chenglong4,5
2018-03-01
发表期刊CLIMATE DYNAMICS
卷号50期号:5-6页码:2183-2197
文章类型Article
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 similar to 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 Orbital Timescale The Late Quaternary
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s00382-017-3743-5
关键词[WOS]WESTERN NORTH PACIFIC ; TROPICAL CYCLONE ACTIVITY ; ICE-AGE TERMINATIONS ; LAST GLACIAL MAXIMUM ; GLOBAL MONSOON ; CLIMATE-CHANGE ; PALEOCLIMATE RESEARCH ; ESTIMATING RECHARGE ; TYPHOON ACTIVITY ; HIGH-RESOLUTION
收录类别SCI
语种英语
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
WOS记录号WOS:000426707100040
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5198
专题现代环境研究室
作者单位1.Tongji Univ, State Key Lab Marine Geol, Siping Rd 1239, Shanghai 200092, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, 19 Bei Tu Cheng Xi Lu, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yi, Liang,Shi, Zhengguo,Tan, Liangcheng,et al. Orbital-scale nonlinear response of East Asian summer monsoon to its potential driving forces in the late Quaternary[J]. CLIMATE DYNAMICS,2018,50(5-6):2183-2197.
APA Yi, Liang,Shi, Zhengguo,Tan, Liangcheng,&Deng, Chenglong.(2018).Orbital-scale nonlinear response of East Asian summer monsoon to its potential driving forces in the late Quaternary.CLIMATE DYNAMICS,50(5-6),2183-2197.
MLA Yi, Liang,et al."Orbital-scale nonlinear response of East Asian summer monsoon to its potential driving forces in the late Quaternary".CLIMATE DYNAMICS 50.5-6(2018):2183-2197.
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