Orbital Controls on North Pacific Dust Flux During the Late Quaternary

doi:10.1029/2023GL106631

IOCAS-IR > 海洋地质与环境重点实验室

	Orbital Controls on North Pacific Dust Flux During the Late Quaternary
	Zhong, Yi 1; Liu, Yanguang 2; Yang, Hu 3,4; Yin, Qiuzhen 5; Wilson, David J.6; Lu, Zhengyao 7; Jaccard, Samuel L.8; Struve, Torben 9; Clift, Peter D.6,10; Kaboth-Bahr, Stefanie 11; Larrasoana, Juan C.12,13,14; Bahr, Andre 15; Gong, Xun 16,17,18; Zhao, Debo 19; Zhang, Yanan 1; Xia, Wenyue 1; Liu, Qingsong 1,20,21
	2024-02-28
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
卷号	51 期号:4 页码:14
通讯作者	Yang, Hu([email protected]) ; Liu, Qingsong([email protected])
摘要	Airborne mineral dust is sensitive to climatic changes, but its response to orbital forcing is still not fully understood. Here, we present a reconstruction of dust input to the Subarctic Pacific Ocean covering the past 190 kyr. The dust composition record is indicative of source moisture conditions, which were dominated by precessional variations. In contrast, the dust flux record is dominated by obliquity variations and displays an out-of-phase relationship with a dust record from the mid-latitude North Pacific Ocean. Climate model simulations suggest precession likely drove changes in the aridity and extent of dust source regions. Additionally, the obliquity variations in dust flux can be explained by meridional shifts in the North Pacific westerly jet, driven by changes in the meridional atmospheric temperature gradient. Overall, our findings suggest that North Pacific dust input was primarily modulated by orbital-controlled source aridity and the strength and position of the westerly winds. Glacial-interglacial climate variations can affect dust transport to the ocean, but the controls on past dust fluxes to the North Pacific Ocean remain poorly constrained. This region is important because fertilization of phytoplankton growth by dust-borne iron may have contributed to lower glacial atmospheric CO2, and dust records could also constrain the past dynamics of the North Pacific westerly winds. Here, we highlight the dominance of obliquity cycles in modulating latitudinal shifts of the westerly winds and, in turn, dust inputs. In contrast, precession regulates the aridity of the dust source regions, which determines both dust emission rates and composition. Such orbital-scale fluctuations in the dust flux could influence ocean-atmosphere interactions in the middle and high northern latitudes, with implications for global atmospheric circulation and ocean carbon storage. Moisture availability in Asian dust source regions to the North Pacific Ocean were controlled by precession North Pacific dust flux reveals dominant obliquity variations, but is out-of-phase at different latitudes The westerlies in the Northern Hemisphere were primarily modulated by obliquity cycles in the late Pleistocene
DOI	10.1029/2023GL106631
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China; State Key Laboratory of Marine Geology, Tongji University[MGK202209]; State Key Laboratory of Marine Geology, Tongji University[SSKP202101]; State Key Laboratory of Marine Geology; Shenzhen Science and Technology Program[KQTD20170810111725321]; NERC independent research fellowship[NE/T011440/1]; Charles T. McCord Jr Chair in Petroleum Geology at LSU; [42274094]; [92158208]; [42176245]; [42261144739]; [41976065]; [42176066]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001160518600001
出版者	AMER GEOPHYSICAL UNION
WOS关键词	ASIAN SUMMER MONSOON ; SEASONAL TRANSITIONS ; EQUATORIAL PACIFIC ; EOLIAN DUST ; STORM TRACK ; CHINA LOESS ; BERING-SEA ; CLIMATE ; OCEAN ; WESTERLIES
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184448
专题	海洋地质与环境重点实验室
通讯作者	Yang, Hu; Liu, Qingsong
作者单位	1.Southern Univ Sci & Technol, Ctr Marine Magnetism CM2, Dept Ocean Sci & Engn, Shenzhen, Peoples R China 2.Minist Nat Resources MNR, Inst Oceanog 1, Key Lab Marine Geol & Metallogeny, Qingdao, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab, Zhuhai, Peoples R China 4.Alfred Wegener Inst, Helmholtz Ctr Polar & Marine Res, Bremerhaven, Germany 5.Univ Catholic Louvain, Earth & Life Inst, Earth & Climate Res Ctr, Louvain La Neuve, Belgium 6.UCL, Dept Earth Sci, London, England 7.Lund Univ, Dept Phys Geog & Ecosyst Sci, Lund, Sweden 8.Univ Lausanne, Inst Earth Sci, Lausanne, Switzerland 9.Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm ICBM, Marine Isotope Geochem, Oldenburg, Germany 10.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA USA 11.Free Univ Berlin, Inst Geol Sci, Berlin, Germany 12.CSIC, IGME, Zaragoza, Spain 13.Univ Publ Navarra, Dept Sci, Pamplona, Spain 14.Univ Publ Navarra, Inst Adv Mat & Math INAMAT2, Pamplona, Spain 15.Heidelberg Univ, Inst Earth Sci, Heidelberg, Germany 16.China Univ Geosci, Inst Adv Marine Res, Guangzhou, Peoples R China 17.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Hubei Key Lab Marine Geol Resources, Wuhan, Peoples R China 18.Qilu Univ Technol, Shandong Acad Sci, Shandong Prov Key Lab Comp Networks, Jinan, Peoples R China 19.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 20.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou, Peoples R China 21.Shanghai Sheshan Natl Geophys Observ, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Yi,Liu, Yanguang,Yang, Hu,et al. Orbital Controls on North Pacific Dust Flux During the Late Quaternary[J]. GEOPHYSICAL RESEARCH LETTERS,2024,51(4):14.
APA	Zhong, Yi.,Liu, Yanguang.,Yang, Hu.,Yin, Qiuzhen.,Wilson, David J..,...&Liu, Qingsong.(2024).Orbital Controls on North Pacific Dust Flux During the Late Quaternary.GEOPHYSICAL RESEARCH LETTERS,51(4),14.
MLA	Zhong, Yi,et al."Orbital Controls on North Pacific Dust Flux During the Late Quaternary".GEOPHYSICAL RESEARCH LETTERS 51.4(2024):14.