Large deglacial shifts of the Pacific Intertropical Convergence Zone
The position of the Intertropical Convergence Zone (ITCZ) is sensitive to changes in the balance of heat between the hemispheres which has fundamental implications for tropical hydrology and atmospheric circulation. Although the ITCZ is thought to experience the largest shifts in position during deg...
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ftdatacite:10.7916/d8fn160g 2023-05-15T17:32:43+02:00 Large deglacial shifts of the Pacific Intertropical Convergence Zone Jacobel, Allison W. McManus, Jerry F. Anderson, Robert F. Winckler, Gisela 2016 https://dx.doi.org/10.7916/d8fn160g https://academiccommons.columbia.edu/doi/10.7916/D8FN160G unknown Columbia University https://dx.doi.org/10.1038/ncomms10449 Atmospheric circulation Hydrology Intertropical convergence zone Paleoclimatology Text Articles article-journal ScholarlyArticle 2016 ftdatacite https://doi.org/10.7916/d8fn160g https://doi.org/10.1038/ncomms10449 2021-11-05T12:55:41Z The position of the Intertropical Convergence Zone (ITCZ) is sensitive to changes in the balance of heat between the hemispheres which has fundamental implications for tropical hydrology and atmospheric circulation. Although the ITCZ is thought to experience the largest shifts in position during deglacial stadial events, the magnitude of shifts has proven difficult to reconstruct, in part because of a paucity of high-resolution records, particularly those including spatial components. Here we track the position of the ITCZ from 150 to 110 ka at three sites in the central equatorial Pacific at sub-millennial time resolution. Our results provide evidence of large, abrupt changes in tropical climate during the penultimate deglaciation, coincident with North Atlantic Heinrich Stadial 11 (~136–129 ka). We identify this event both as a Northern Hemisphere increase in aeolian dust and as a shift in the mean position of the ITCZ a minimum of 4° southwards at 160° W. Text North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Pacific |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
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topic |
Atmospheric circulation Hydrology Intertropical convergence zone Paleoclimatology |
spellingShingle |
Atmospheric circulation Hydrology Intertropical convergence zone Paleoclimatology Jacobel, Allison W. McManus, Jerry F. Anderson, Robert F. Winckler, Gisela Large deglacial shifts of the Pacific Intertropical Convergence Zone |
topic_facet |
Atmospheric circulation Hydrology Intertropical convergence zone Paleoclimatology |
description |
The position of the Intertropical Convergence Zone (ITCZ) is sensitive to changes in the balance of heat between the hemispheres which has fundamental implications for tropical hydrology and atmospheric circulation. Although the ITCZ is thought to experience the largest shifts in position during deglacial stadial events, the magnitude of shifts has proven difficult to reconstruct, in part because of a paucity of high-resolution records, particularly those including spatial components. Here we track the position of the ITCZ from 150 to 110 ka at three sites in the central equatorial Pacific at sub-millennial time resolution. Our results provide evidence of large, abrupt changes in tropical climate during the penultimate deglaciation, coincident with North Atlantic Heinrich Stadial 11 (~136–129 ka). We identify this event both as a Northern Hemisphere increase in aeolian dust and as a shift in the mean position of the ITCZ a minimum of 4° southwards at 160° W. |
format |
Text |
author |
Jacobel, Allison W. McManus, Jerry F. Anderson, Robert F. Winckler, Gisela |
author_facet |
Jacobel, Allison W. McManus, Jerry F. Anderson, Robert F. Winckler, Gisela |
author_sort |
Jacobel, Allison W. |
title |
Large deglacial shifts of the Pacific Intertropical Convergence Zone |
title_short |
Large deglacial shifts of the Pacific Intertropical Convergence Zone |
title_full |
Large deglacial shifts of the Pacific Intertropical Convergence Zone |
title_fullStr |
Large deglacial shifts of the Pacific Intertropical Convergence Zone |
title_full_unstemmed |
Large deglacial shifts of the Pacific Intertropical Convergence Zone |
title_sort |
large deglacial shifts of the pacific intertropical convergence zone |
publisher |
Columbia University |
publishDate |
2016 |
url |
https://dx.doi.org/10.7916/d8fn160g https://academiccommons.columbia.edu/doi/10.7916/D8FN160G |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1038/ncomms10449 |
op_doi |
https://doi.org/10.7916/d8fn160g https://doi.org/10.1038/ncomms10449 |
_version_ |
1766130973595926528 |