Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1
The Pacific intermediate water is essential for global ocean heat storage and transfer and connected to the higher latitude sea areas. Its thermohaline evolution and relationship to high latitudes on millennium scales, however, are both poorly understood. In this study, we used sediment core KX22–4...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Online Access: | https://archimer.ifremer.fr/doc/00835/94693/102121.pdf https://doi.org/10.1016/j.palaeo.2023.111600 https://archimer.ifremer.fr/doc/00835/94693/ |
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ftarchimer:oai:archimer.ifremer.fr:94693 2024-05-19T07:31:44+00:00 Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 Zhang, Shuai Li, Tiegang Yu, Zhoufei Chang, Fengming Gu, Sifan Xiong, Zhifang Liu, Heng Qian, Fang Zhang, Junru Cheng, Xuhua Li, Baohua 2023-07 application/pdf https://archimer.ifremer.fr/doc/00835/94693/102121.pdf https://doi.org/10.1016/j.palaeo.2023.111600 https://archimer.ifremer.fr/doc/00835/94693/ eng eng Elsevier BV https://archimer.ifremer.fr/doc/00835/94693/102121.pdf doi:10.1016/j.palaeo.2023.111600 https://archimer.ifremer.fr/doc/00835/94693/ info:eu-repo/semantics/openAccess restricted use Palaeogeography Palaeoclimatology Palaeoecology (0031-0182) (Elsevier BV), 2023-07 , Vol. 622 , P. 111600 (9p.) Western equatorial Pacific Intermediate water Heinrich Stadial 1 Thermohaline evolution text Article info:eu-repo/semantics/article 2023 ftarchimer https://doi.org/10.1016/j.palaeo.2023.111600 2024-04-30T23:30:28Z The Pacific intermediate water is essential for global ocean heat storage and transfer and connected to the higher latitude sea areas. Its thermohaline evolution and relationship to high latitudes on millennium scales, however, are both poorly understood. In this study, we used sediment core KX22–4 in the western equatorial Pacific to reconstruct the thermohaline and δ13C variations in the intermediate water over the past 28,000 years based on Mg/Ca, δ18O and δ13C measurements of deep dwelling planktonic foraminiferal species. The results show that during Heinrich Stadial 1, the temperature of intermediate water rapidly increased by roughly 6 °C and was simultaneous with the Southern Ocean surface water, carrying a typical Antarctic signature along with the salter and reduced δ13C signals. The Southern Hemisphere climatic development and the advection of the thermal anomaly into the tropical intermediate Pacific via the Southern Ocean intermediate water are thought to be closely coupled. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Palaeogeography, Palaeoclimatology, Palaeoecology 622 111600 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Western equatorial Pacific Intermediate water Heinrich Stadial 1 Thermohaline evolution |
spellingShingle |
Western equatorial Pacific Intermediate water Heinrich Stadial 1 Thermohaline evolution Zhang, Shuai Li, Tiegang Yu, Zhoufei Chang, Fengming Gu, Sifan Xiong, Zhifang Liu, Heng Qian, Fang Zhang, Junru Cheng, Xuhua Li, Baohua Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 |
topic_facet |
Western equatorial Pacific Intermediate water Heinrich Stadial 1 Thermohaline evolution |
description |
The Pacific intermediate water is essential for global ocean heat storage and transfer and connected to the higher latitude sea areas. Its thermohaline evolution and relationship to high latitudes on millennium scales, however, are both poorly understood. In this study, we used sediment core KX22–4 in the western equatorial Pacific to reconstruct the thermohaline and δ13C variations in the intermediate water over the past 28,000 years based on Mg/Ca, δ18O and δ13C measurements of deep dwelling planktonic foraminiferal species. The results show that during Heinrich Stadial 1, the temperature of intermediate water rapidly increased by roughly 6 °C and was simultaneous with the Southern Ocean surface water, carrying a typical Antarctic signature along with the salter and reduced δ13C signals. The Southern Hemisphere climatic development and the advection of the thermal anomaly into the tropical intermediate Pacific via the Southern Ocean intermediate water are thought to be closely coupled. |
format |
Article in Journal/Newspaper |
author |
Zhang, Shuai Li, Tiegang Yu, Zhoufei Chang, Fengming Gu, Sifan Xiong, Zhifang Liu, Heng Qian, Fang Zhang, Junru Cheng, Xuhua Li, Baohua |
author_facet |
Zhang, Shuai Li, Tiegang Yu, Zhoufei Chang, Fengming Gu, Sifan Xiong, Zhifang Liu, Heng Qian, Fang Zhang, Junru Cheng, Xuhua Li, Baohua |
author_sort |
Zhang, Shuai |
title |
Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 |
title_short |
Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 |
title_full |
Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 |
title_fullStr |
Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 |
title_full_unstemmed |
Abrupt warming of the equatorial intermediate Pacific during Heinrich Stadial 1 |
title_sort |
abrupt warming of the equatorial intermediate pacific during heinrich stadial 1 |
publisher |
Elsevier BV |
publishDate |
2023 |
url |
https://archimer.ifremer.fr/doc/00835/94693/102121.pdf https://doi.org/10.1016/j.palaeo.2023.111600 https://archimer.ifremer.fr/doc/00835/94693/ |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Palaeogeography Palaeoclimatology Palaeoecology (0031-0182) (Elsevier BV), 2023-07 , Vol. 622 , P. 111600 (9p.) |
op_relation |
https://archimer.ifremer.fr/doc/00835/94693/102121.pdf doi:10.1016/j.palaeo.2023.111600 https://archimer.ifremer.fr/doc/00835/94693/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.palaeo.2023.111600 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
622 |
container_start_page |
111600 |
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1799469619874889728 |