Delayed Collapse of the North Pacific Intermediate Water After the Glacial Termination

doi:10.1029/2021GL092911

IOCAS-IR > 海洋地质与环境重点实验室

	Delayed Collapse of the North Pacific Intermediate Water After the Glacial Termination
	Zhao, Debo 1; Wan, Shiming1,2,3 ; Lu, Zhengyao 4; Zhai, Lina 1; Feng, Xuguang 5; Shi, Xuefa 6; Li, Anchun 1
	2021-07-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	48 期号:13 页码:10
通讯作者	Zhao, Debo([email protected]) ; Lu, Zhengyao([email protected])
摘要	Carbon release from the North Pacific in glacial-interglacial cycles has been mainly linked to the North Pacific Intermediate Water (NPIW) formation and associated carbon/nutrient water upwelling and biological productivity changes. However, relationship between NPIW and atmospheric CO2 change in the early interglacial remains unclear. Here we report a high-resolution sediment record of NPIW evolution based on paleo-redox changes in the Western North Pacific during the last 400 ka. Our proxy and model results reveal a delayed collapse of NPIW after the glacial termination was coeval with decreased salinity of intermediate water and increased net rainfall in the North Pacific. Such weakened NPIW formation in the North Pacific probably make a contribution to maintain high atmospheric CO2 concentrations through weakened intermediate-to-deep ocean stratification and reduced subsurface biological pump net efficiency, countering the return to more stratified conditions in the Southern Ocean, which should drive down atmospheric CO2 during the early interglacial.
关键词	Okinawa Trough NPIW redox environment marine sediment trace elements
DOI	10.1029/2021GL092911
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDB40010100]; National Natural Science Foundation of China[41806055]; National Natural Science Foundation of China[41876068]; Open Funding of Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology[MGQNLM201903]; FORMAS mobility[2020-02267]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000694024600010
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176386
专题	海洋地质与环境重点实验室
通讯作者	Zhao, Debo; Lu, Zhengyao
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China 4.Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden 5.Nanjing Univ, Minist Educ, Key Lab Coast & Isl Dev, Sch Geog & Oceanog Sci, Nanjing, Peoples R China 6.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Debo,Wan, Shiming,Lu, Zhengyao,et al. Delayed Collapse of the North Pacific Intermediate Water After the Glacial Termination[J]. GEOPHYSICAL RESEARCH LETTERS,2021,48(13):10.
APA	Zhao, Debo.,Wan, Shiming.,Lu, Zhengyao.,Zhai, Lina.,Feng, Xuguang.,...&Li, Anchun.(2021).Delayed Collapse of the North Pacific Intermediate Water After the Glacial Termination.GEOPHYSICAL RESEARCH LETTERS,48(13),10.
MLA	Zhao, Debo,et al."Delayed Collapse of the North Pacific Intermediate Water After the Glacial Termination".GEOPHYSICAL RESEARCH LETTERS 48.13(2021):10.

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2021GL092911.pdf（2213KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览