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Orbital Controls on...
Orbital Controls on North Pacific Dust Flux During the Late Quaternary
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- Zhong, Yi (author)
- Southern University of Science and Technology
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- Liu, Yanguang (author)
- First Institute of Oceanography, SOA
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- Yang, Hu (author)
- Alfred-Wegener Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven
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- Yin, Qiuzhen (author)
- Catholic University of Louvain
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- Wilson, David J. (author)
- University College London
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- Lu, Zhengyao (author)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Jaccard, Samuel L. (author)
- University of Lausanne
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- Struve, Torben (author)
- Carl von Ossietzky University of Oldenburg
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- Clift, Peter D. (author)
- Louisiana State University,University College London
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- Kaboth-Bahr, Stefanie (author)
- Free University of Berlin
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- Larrasoaña, Juan C. (author)
- Public University of Navarre,CSIC Spanish National Research Council
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- Bahr, André (author)
- Heidelberg University
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- Gong, Xun (author)
- China University of Geosciences
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- Zhao, Debo (author)
- Institute of Oceanology, Chinese Academy of Sciences
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- Zhang, Yanan (author)
- Southern University of Science and Technology
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- Xia, Wenyue (author)
- Southern University of Science and Technology
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- Liu, Qingsong (author)
- Southern University of Science and Technology
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Geophysical Research Letters. - 0094-8276. ; 51:4
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Klimatforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Climate Research (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Zhong, Yi
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Liu, Yanguang
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Yang, Hu
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Yin, Qiuzhen
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Wilson, David J.
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Lu, Zhengyao
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show more...
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Jaccard, Samuel ...
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Struve, Torben
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Clift, Peter D.
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Kaboth-Bahr, Ste ...
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Larrasoaña, Juan ...
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Bahr, André
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Gong, Xun
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Zhao, Debo
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Zhang, Yanan
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Xia, Wenyue
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Liu, Qingsong
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Climate Research
- Articles in the publication
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Geophysical Rese ...
- By the university
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Lund University