Increased dust deposition in the Pacific Southern Ocean during glacial periods
Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate variability, but how it has varied temporally and geographically is underdetermined. Here, we present data sets of glacial-interglacial dust-supply cycles from the largest Southern Ocean sector, the polar S...
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ftawi:oai:epic.awi.de:34913 2024-09-15T17:43:28+00:00 Increased dust deposition in the Pacific Southern Ocean during glacial periods Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-Garcia, Alfredo Lambert, Fabrice Kilian, Rolf 2014-01-24 application/pdf https://epic.awi.de/id/eprint/34913/ https://epic.awi.de/id/eprint/34913/1/Lamyetal2014.pdf https://hdl.handle.net/10013/epic.43047 https://hdl.handle.net/10013/epic.43047.d001 unknown AAAS https://epic.awi.de/id/eprint/34913/1/Lamyetal2014.pdf https://hdl.handle.net/10013/epic.43047.d001 Lamy, F. orcid:0000-0001-5952-1765 , Gersonde, R. , Winckler, G. , Esper, O. orcid:0000-0002-4342-3471 , Jaeschke, A. , Kuhn, G. orcid:0000-0001-6069-7485 , Ullermann, J. , Martínez-Garcia, A. , Lambert, F. and Kilian, R. (2014) Increased dust deposition in the Pacific Southern Ocean during glacial periods , Science, 343 (6169), pp. 403-407 . doi:10.1126/science.1245424 <https://doi.org/10.1126/science.1245424> , hdl:10013/epic.43047 EPIC3Science, AAAS, 343(6169), pp. 403-407, ISSN: 0036-8075 Article isiRev 2014 ftawi https://doi.org/10.1126/science.1245424 2024-06-24T04:08:32Z Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate variability, but how it has varied temporally and geographically is underdetermined. Here, we present data sets of glacial-interglacial dust-supply cycles from the largest Southern Ocean sector, the polar South Pacific, indicating three times higher dust deposition during glacial periods than during interglacials for the past million years. Although the most likely dust source for the South Pacific is Australia and New Zealand, the glacial-interglacial pattern and timing of lithogenic sediment deposition is similar to dust records from Antarctica and the South Atlantic dominated by Patagonian sources. These similarities imply large-scale common climate forcings, such as latitudinal shifts of the southern westerlies and regionally enhanced glaciogenic dust mobilization in New Zealand and Patagonia. Article in Journal/Newspaper Antarc* Antarctica Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Science 343 6169 403 407 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate variability, but how it has varied temporally and geographically is underdetermined. Here, we present data sets of glacial-interglacial dust-supply cycles from the largest Southern Ocean sector, the polar South Pacific, indicating three times higher dust deposition during glacial periods than during interglacials for the past million years. Although the most likely dust source for the South Pacific is Australia and New Zealand, the glacial-interglacial pattern and timing of lithogenic sediment deposition is similar to dust records from Antarctica and the South Atlantic dominated by Patagonian sources. These similarities imply large-scale common climate forcings, such as latitudinal shifts of the southern westerlies and regionally enhanced glaciogenic dust mobilization in New Zealand and Patagonia. |
format |
Article in Journal/Newspaper |
author |
Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-Garcia, Alfredo Lambert, Fabrice Kilian, Rolf |
spellingShingle |
Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-Garcia, Alfredo Lambert, Fabrice Kilian, Rolf Increased dust deposition in the Pacific Southern Ocean during glacial periods |
author_facet |
Lamy, Frank Gersonde, Rainer Winckler, Gisela Esper, Oliver Jaeschke, Andrea Kuhn, Gerhard Ullermann, Johannes Martínez-Garcia, Alfredo Lambert, Fabrice Kilian, Rolf |
author_sort |
Lamy, Frank |
title |
Increased dust deposition in the Pacific Southern Ocean during glacial periods |
title_short |
Increased dust deposition in the Pacific Southern Ocean during glacial periods |
title_full |
Increased dust deposition in the Pacific Southern Ocean during glacial periods |
title_fullStr |
Increased dust deposition in the Pacific Southern Ocean during glacial periods |
title_full_unstemmed |
Increased dust deposition in the Pacific Southern Ocean during glacial periods |
title_sort |
increased dust deposition in the pacific southern ocean during glacial periods |
publisher |
AAAS |
publishDate |
2014 |
url |
https://epic.awi.de/id/eprint/34913/ https://epic.awi.de/id/eprint/34913/1/Lamyetal2014.pdf https://hdl.handle.net/10013/epic.43047 https://hdl.handle.net/10013/epic.43047.d001 |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_source |
EPIC3Science, AAAS, 343(6169), pp. 403-407, ISSN: 0036-8075 |
op_relation |
https://epic.awi.de/id/eprint/34913/1/Lamyetal2014.pdf https://hdl.handle.net/10013/epic.43047.d001 Lamy, F. orcid:0000-0001-5952-1765 , Gersonde, R. , Winckler, G. , Esper, O. orcid:0000-0002-4342-3471 , Jaeschke, A. , Kuhn, G. orcid:0000-0001-6069-7485 , Ullermann, J. , Martínez-Garcia, A. , Lambert, F. and Kilian, R. (2014) Increased dust deposition in the Pacific Southern Ocean during glacial periods , Science, 343 (6169), pp. 403-407 . doi:10.1126/science.1245424 <https://doi.org/10.1126/science.1245424> , hdl:10013/epic.43047 |
op_doi |
https://doi.org/10.1126/science.1245424 |
container_title |
Science |
container_volume |
343 |
container_issue |
6169 |
container_start_page |
403 |
op_container_end_page |
407 |
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1810490458790428672 |