Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ...
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...
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Online Access: | https://dx.doi.org/10.5281/zenodo.10252019 https://zenodo.org/doi/10.5281/zenodo.10252019 |
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ftdatacite:10.5281/zenodo.10252019 2024-01-28T10:09:26+01:00 Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... Yi, Zhong 2023 https://dx.doi.org/10.5281/zenodo.10252019 https://zenodo.org/doi/10.5281/zenodo.10252019 unknown Zenodo https://dx.doi.org/10.5281/zenodo.10252020 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Dataset dataset 2023 ftdatacite https://doi.org/10.5281/zenodo.1025201910.5281/zenodo.10252020 2024-01-04T14:12:42Z 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 are dominated by precessional variations. In contrast, the dust flux in marine sediments is dominated by obliquity variations, and display an out-of-phase relationship with a dust record from the mid latitude North Pacific Ocean. Climate model simulations suggest a precessional forcing likely affected the aridity and extent of the dust source regions. Meanwhile, the obliquity variations can be explained by meridional shifts in the North Pacific westerly jet, driven by changes in the meridional atmospheric temperature gradient. Our findings suggest that North Pacific dust input were primarily modulated by orbital-controlled source aridity and westerly during the late Quaternary. ... Dataset Subarctic DataCite Metadata Store (German National Library of Science and Technology) Pacific |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
unknown |
description |
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 are dominated by precessional variations. In contrast, the dust flux in marine sediments is dominated by obliquity variations, and display an out-of-phase relationship with a dust record from the mid latitude North Pacific Ocean. Climate model simulations suggest a precessional forcing likely affected the aridity and extent of the dust source regions. Meanwhile, the obliquity variations can be explained by meridional shifts in the North Pacific westerly jet, driven by changes in the meridional atmospheric temperature gradient. Our findings suggest that North Pacific dust input were primarily modulated by orbital-controlled source aridity and westerly during the late Quaternary. ... |
format |
Dataset |
author |
Yi, Zhong |
spellingShingle |
Yi, Zhong Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... |
author_facet |
Yi, Zhong |
author_sort |
Yi, Zhong |
title |
Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... |
title_short |
Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... |
title_full |
Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... |
title_fullStr |
Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... |
title_full_unstemmed |
Orbital-controlled mid-latitude North Pacific dust flux during the late Quaternary ... |
title_sort |
orbital-controlled mid-latitude north pacific dust flux during the late quaternary ... |
publisher |
Zenodo |
publishDate |
2023 |
url |
https://dx.doi.org/10.5281/zenodo.10252019 https://zenodo.org/doi/10.5281/zenodo.10252019 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://dx.doi.org/10.5281/zenodo.10252020 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.5281/zenodo.1025201910.5281/zenodo.10252020 |
_version_ |
1789339335622918144 |