Late Holocene Orbital Forcing and Solar Activity on the Kuroshio Current of Subtropical North Pacific at Different Timescales

doi:10.3389/feart.2022.845228

IEECAS OpenIR > 现代环境研究室

	Late Holocene Orbital Forcing and Solar Activity on the Kuroshio Current of Subtropical North Pacific at Different Timescales
	Ding, Xue 1,2; Hu, Bangqi 1,2; Li, Jun 3; Zhao, Jingtao 1,2; Yao, Yue 4; Li, Qing 1,2; Lan, Jianghu5,6 ; Zheng, Xufeng 7; Yi, Liang 8
通讯作者	Hu, Bangqi(bangqihu@gmail.com)
	2022-03-14
发表期刊	FRONTIERS IN EARTH SCIENCE
卷号	10 页码:11
摘要	The North Pacific subtropical gyre (NPSTG) redistributes heat and moisture between low and high latitudes and plays a key role in modulating the global climate change and ecosystem. Recent evidence suggests intensification and poleward shift of the subtropical gyres over the last decades due to global warming, but insufficient observations have hampered insight into the integrated effects of ocean-atmosphere interactions at longer timescales. Here we present the first high-resolution (similar to 12 years) grain-size record from Core CF1 in the Okinawa Trough, western subtropical North Pacific, to reconstruct the evolution of the western boundary Kuroshio Current (KC) of NPSTG during the Late Holocene. Our results indicate the KC slow-down during 4.6-2.0 ka, followed by quick enhancement after 2.0 ka, with centennial-scale variabilities (500-700 years) superimposed on the long-term trend. Over millennial timescales, gradually increased pole-to-equator thermal gradient, due to orbital forcing mechanisms, resulted in long-term enhanced KC, whereas solar activity triggered phase changes in the tropical Pacific mean state and controlled KC anomalies on centennial timescales. We suggest that both forcing mechanisms resulted in ocean-atmosphere feedback provoking concurrent changes in mid-latitude westerly and subtropical easterly winds over the North Pacific, alternating their dominance as source regions causing the dynamic changes of KC at different timescales. Our findings offer insight into the role of external forcing mechanisms in the NPSTG changes before the Anthropocene, which have profound implications for the deeper understanding of changes in ocean gyres under global warming scenarios.
关键词	Kuroshio Current Okinawa Trough solar forcing ocean-atmosphere coupling Late Holocene westerly
DOI	10.3389/feart.2022.845228
关键词[WOS]	WESTERN BOUNDARY CURRENTS ; MIDDLE OKINAWA TROUGH ; CLIMATE-CHANGE ; SEDIMENT PROVENANCES ; VARIABILITY ; OSCILLATION ; CHINA ; OCEAN ; INTENSIFICATION ; CONSTRAINTS
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41976192] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; National Key Research and Development Program of China[2018YFC0310001] ; Shandong Province Natural Science Foundation[ZR202103010094] ; Project of China Geological Survey[DD20191010]
WOS研究方向	Geology
项目资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; Shandong Province Natural Science Foundation ; Project of China Geological Survey
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000777098000001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：1[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/361006/17650
专题	现代环境研究室
通讯作者	Hu, Bangqi
作者单位	1.Qingdao Inst Marine Geol, Qingdao, Peoples R China 2.Pilot Natl Lab forMarine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China 3.Wuhan Geol Survey Ctr, Wuhan, Peoples R China 4.Shandong Univ, Inst Marine Scienceand Technol, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Quaternary Sci & GlobalChange, Xian, Peoples R China 7.Hainan Univ, State Key Lab Marine Resource Utilizat South Chin, Haikou, Peoples R China 8.Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Ding, Xue,Hu, Bangqi,Li, Jun,et al. Late Holocene Orbital Forcing and Solar Activity on the Kuroshio Current of Subtropical North Pacific at Different Timescales[J]. FRONTIERS IN EARTH SCIENCE,2022,10:11.
APA	Ding, Xue.,Hu, Bangqi.,Li, Jun.,Zhao, Jingtao.,Yao, Yue.,...&Yi, Liang.(2022).Late Holocene Orbital Forcing and Solar Activity on the Kuroshio Current of Subtropical North Pacific at Different Timescales.FRONTIERS IN EARTH SCIENCE,10,11.
MLA	Ding, Xue,et al."Late Holocene Orbital Forcing and Solar Activity on the Kuroshio Current of Subtropical North Pacific at Different Timescales".FRONTIERS IN EARTH SCIENCE 10(2022):11.