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One million years of seasonal seesaw in East Asian monsoon winds
Huang, Jie1,2,3; Sarnthein, Michael3
Corresponding AuthorHuang, Jie(
AbstractGlacial-to-interglacial variations in East Asian summer and winter monsoon are widely ascribed to orbital and/or global ice-sheet forcing. However, the relative impact of orbital and millennial-scale factors on Pleistocene variations in East Asian monsoon still remains controversial. To better constrain the differential response of seasonal monsoon winds over the last million years we present paired records of siliciclastic silt grain sizes, pollen, minerals, and geochemical tracers obtained from high-sedimentation rate deposits at ODP Sites 1144 and 1146 in the northern South China Sea. The proxy records show that loess-style eolian dust supply of winter monsoon was dominant and fluvial input reduced during peak glacials over the last 900 kyr, moreover, during Heinrich stadials, while abundant fluvial mud marked interglacial regimes as result of enhanced summer monsoon, then completely overlying the weakened dust input of winter monsoon. Likewise, an excess of fluvial mud suppressed the eolian dust signal during the initial part of most glacial stages during and after the Mid-Pleistocene Transition (MPT), in part possibly induced by long-term groundwater reserves and/or unknown climate forcings linked to the southern Hemisphere. Prior to the MPT, during glacial stages 24-32, prolonged groundwater reserves and/or a more limited extent of northern-Hemisphere ice sheets, or unknown southern Hemisphere forcing may have controlled an ongoing interglacial-style humid monsoon climate in East Asia. In summary, our findings suggest that the sediment record of seasonal East Asian monsoon variability in part may have been more sensitive to secondary factors of groundwater storage, plant cover, as well as to the redistribution of insolation energy amongst various climate subsystems than to direct orbital and/or northern ice-sheet forcing. (C) 2021 Elsevier Ltd. All rights reserved.
KeywordEast Asian monsoon winds South China Sea Silt grain size distribution Orbital-scale climate change Millennial-scale variability and dynamics of climate
Indexed BySCI
Funding ProjectNatural Science Foundation of Shandong Province[ZR2020MD067] ; National Natural Science Foundation of China[41406064] ; National Basic Research Program of China[2007CB411703] ; China Scholarship Council[201804910049]
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000723190100017
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Document Type期刊论文
Corresponding AuthorHuang, Jie
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Univ Kiel, Inst Geosci, D-24098 Kiel, Germany
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Huang, Jie,Sarnthein, Michael. One million years of seasonal seesaw in East Asian monsoon winds[J]. QUATERNARY SCIENCE REVIEWS,2021,274:11.
APA Huang, Jie,&Sarnthein, Michael.(2021).One million years of seasonal seesaw in East Asian monsoon winds.QUATERNARY SCIENCE REVIEWS,274,11.
MLA Huang, Jie,et al."One million years of seasonal seesaw in East Asian monsoon winds".QUATERNARY SCIENCE REVIEWS 274(2021):11.
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