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Late-Holocene high-frequency East Asia Winter Monsoon variability inferred from the environmentally sensitive grain size component in the distal shelf mud area, East China Sea
Du, Shuhuan; Xiang, Rong; Yang, Zuosheng1; Guo, Zhigang1; Saito, Yoshiki2; Fan, Dejiang1
2019
Source PublicationHOLOCENE
ISSN0959-6836
Volume29Issue:1Pages:3
AbstractThe B2 (B2G) and I4 sediment cores recovered from the centre of the distal mud area of the East China Sea (ECS) were analysed for grain size distribution. Proxies for environmentally sensitive grain size components (ESGSC) retrieved from the composite B2 core, namely, variations in the volumetric content and mean grain size of specific grain size fractions, reveal a detailed history of the East Asia Winter Monsoon (EAWM) including centennial to decadal-scale variations spanning the last 2300 calendar years before present (cal. yr BP). The results indicate that EAWM variations are consistent with temperature changes in eastern China (as inferred from historical documents). Additionally, the sea surface temperature (SST) in the Southern Okinawa Trough, the delta O-18 of stalagmite from the Sanbao cave and the drift ice indices from the North Atlantic, along with strong or weak EAWMs, corresponding to low or high temperatures, respectively. Four periods of EAWM variations were identified, namely, a weak EAWM stage from 2300 to 2050 cal. yr BP; a comparatively enhanced EAWM between 2050 and 1700 cal. yr BP; a return to a weak EAWM from 1700 to 700 cal. yr BP, including the Roman Warm Period (RWP), the Sui-Tang Dynasty Warm Period (STWP) and the 'Medieval Warm Period' (MWP) and a strongly developed EAWM between 700 and 100 cal. yr BP, corresponding to a 'Little Ice Age'. An important abrupt warm to cold climate change event occurred around 678 cal. yr BP. During this period, the climate change was likely related to global scale changes in atmospheric circulation. Spectral analyses of the ESGSC proxies show high-frequency cycles and a close solar-monsoon connection to the EAWM, suggesting that one of the primary controls for centennial to decadal-scale change in EAWM intensity was the variation in solar radiation during that time.
DepartmentOMG
KeywordEast Asia Winter Monsoon East China Sea grain size data insolation cycles Late-Holocene shelf mud
DOI10.1177/0959683618814981
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17987
Collection中科院边缘海地质重点实验室
Affiliation1.South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
2.China Ocean Univ, Coll Geosci, Qingdao, Peoples R China
3.AIST, Geol Survey Japan, Tsukuba, Ibaraki, Japan
Recommended Citation
GB/T 7714
Du, Shuhuan,Xiang, Rong,Yang, Zuosheng,et al. Late-Holocene high-frequency East Asia Winter Monsoon variability inferred from the environmentally sensitive grain size component in the distal shelf mud area, East China Sea[J]. HOLOCENE,2019,29(1):3, 16.
APA Du, Shuhuan,Xiang, Rong,Yang, Zuosheng,Guo, Zhigang,Saito, Yoshiki,&Fan, Dejiang.(2019).Late-Holocene high-frequency East Asia Winter Monsoon variability inferred from the environmentally sensitive grain size component in the distal shelf mud area, East China Sea.HOLOCENE,29(1),3.
MLA Du, Shuhuan,et al."Late-Holocene high-frequency East Asia Winter Monsoon variability inferred from the environmentally sensitive grain size component in the distal shelf mud area, East China Sea".HOLOCENE 29.1(2019):3.
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