Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ...
The Antarctic Circumpolar Current (ACC) plays a crucial role in global ocean circulation by fostering deep-water upwelling and formation of new water masses. On geological time-scales, ACC variations are poorly constrained beyond the last glacial. Here, we reconstruct changes in ACC strength in the...
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Online Access: | https://dx.doi.org/10.1594/pangaea.923843 https://doi.pangaea.de/10.1594/PANGAEA.923843 |
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ftdatacite:10.1594/pangaea.923843 2024-09-15T17:47:21+00:00 Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... Wu, Shuzhuang Lembke-Jene, Lester Lamy, Frank Arz, Helge Wolfgang Nowaczyk, Norbert R Xiao, Wenshen Zhang, Xu Hass, H Christian Titschack, Jürgen Zheng, Xufeng Liu, Jiabo Dumm, Levin Diekmann, Bernhard Nürnberg, Dirk Tiedemann, Ralf Kuhn, Gerhard 2020 application/zip https://dx.doi.org/10.1594/pangaea.923843 https://doi.pangaea.de/10.1594/PANGAEA.923843 en eng PANGAEA https://dx.doi.org/10.1038/s41467-021-24264-9 https://dx.doi.org/10.1594/pangaea.952802 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Antarctic Circumpolar Current Drake Passage Grain Size Polar Terrestrial Environmental Systems @ AWI AWI_Envi article Collection Bundled Publication of Datasets 2020 ftdatacite https://doi.org/10.1594/pangaea.92384310.1038/s41467-021-24264-910.1594/pangaea.952802 2024-08-01T10:57:14Z The Antarctic Circumpolar Current (ACC) plays a crucial role in global ocean circulation by fostering deep-water upwelling and formation of new water masses. On geological time-scales, ACC variations are poorly constrained beyond the last glacial. Here, we reconstruct changes in ACC strength in the central Drake Passage in vicinity of the modern Polar Front over a complete glacial-interglacial cycle (i.e., the past 140,000 years), based on sediment grain-size and geochemical characteristics. We found significant glacial-interglacial changes of ACC flow speed, with weakened current strength during glacials and a stronger circulation in interglacials. Superimposed on these orbital-scale changes are high-amplitude millennial-scale fluctuations, with ACC strength maxima correlating with diatom-based Antarctic winter sea-ice minima, particularly during full glacial conditions. We infer that the ACC is closely linked to Southern Hemisphere millennial-scale climate oscillations, amplified through Antarctic sea ice ... Article in Journal/Newspaper Antarc* Antarctic Drake Passage Sea ice DataCite |
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Open Polar |
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ftdatacite |
language |
English |
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Antarctic Circumpolar Current Drake Passage Grain Size Polar Terrestrial Environmental Systems @ AWI AWI_Envi |
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Antarctic Circumpolar Current Drake Passage Grain Size Polar Terrestrial Environmental Systems @ AWI AWI_Envi Wu, Shuzhuang Lembke-Jene, Lester Lamy, Frank Arz, Helge Wolfgang Nowaczyk, Norbert R Xiao, Wenshen Zhang, Xu Hass, H Christian Titschack, Jürgen Zheng, Xufeng Liu, Jiabo Dumm, Levin Diekmann, Bernhard Nürnberg, Dirk Tiedemann, Ralf Kuhn, Gerhard Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... |
topic_facet |
Antarctic Circumpolar Current Drake Passage Grain Size Polar Terrestrial Environmental Systems @ AWI AWI_Envi |
description |
The Antarctic Circumpolar Current (ACC) plays a crucial role in global ocean circulation by fostering deep-water upwelling and formation of new water masses. On geological time-scales, ACC variations are poorly constrained beyond the last glacial. Here, we reconstruct changes in ACC strength in the central Drake Passage in vicinity of the modern Polar Front over a complete glacial-interglacial cycle (i.e., the past 140,000 years), based on sediment grain-size and geochemical characteristics. We found significant glacial-interglacial changes of ACC flow speed, with weakened current strength during glacials and a stronger circulation in interglacials. Superimposed on these orbital-scale changes are high-amplitude millennial-scale fluctuations, with ACC strength maxima correlating with diatom-based Antarctic winter sea-ice minima, particularly during full glacial conditions. We infer that the ACC is closely linked to Southern Hemisphere millennial-scale climate oscillations, amplified through Antarctic sea ice ... |
format |
Article in Journal/Newspaper |
author |
Wu, Shuzhuang Lembke-Jene, Lester Lamy, Frank Arz, Helge Wolfgang Nowaczyk, Norbert R Xiao, Wenshen Zhang, Xu Hass, H Christian Titschack, Jürgen Zheng, Xufeng Liu, Jiabo Dumm, Levin Diekmann, Bernhard Nürnberg, Dirk Tiedemann, Ralf Kuhn, Gerhard |
author_facet |
Wu, Shuzhuang Lembke-Jene, Lester Lamy, Frank Arz, Helge Wolfgang Nowaczyk, Norbert R Xiao, Wenshen Zhang, Xu Hass, H Christian Titschack, Jürgen Zheng, Xufeng Liu, Jiabo Dumm, Levin Diekmann, Bernhard Nürnberg, Dirk Tiedemann, Ralf Kuhn, Gerhard |
author_sort |
Wu, Shuzhuang |
title |
Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... |
title_short |
Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... |
title_full |
Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... |
title_fullStr |
Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... |
title_full_unstemmed |
Antarctic Circumpolar Current (ACC) analysis of sediment core PS97/085-3 from POLARSTERN cruise PS97 (ANT-XXXI/3) in the Drake Passage ... |
title_sort |
antarctic circumpolar current (acc) analysis of sediment core ps97/085-3 from polarstern cruise ps97 (ant-xxxi/3) in the drake passage ... |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://dx.doi.org/10.1594/pangaea.923843 https://doi.pangaea.de/10.1594/PANGAEA.923843 |
genre |
Antarc* Antarctic Drake Passage Sea ice |
genre_facet |
Antarc* Antarctic Drake Passage Sea ice |
op_relation |
https://dx.doi.org/10.1038/s41467-021-24264-9 https://dx.doi.org/10.1594/pangaea.952802 |
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/10.1594/pangaea.92384310.1038/s41467-021-24264-910.1594/pangaea.952802 |
_version_ |
1810496521426173952 |