Deglacial intermediate water reorganization: new evidence from the Indian Ocean
The importance of intermediate water masses in climate change and ocean circulation has been emphasized recently. In particular, Southern Ocean Intermediate Waters (SOIW), such as Antarctic Intermediate Water and Subantarctic Mode Water, are thought to have acted as active interhemispheric transmitt...
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ftarchimer:oai:archimer.ifremer.fr:38489 2023-05-15T13:50:50+02:00 Deglacial intermediate water reorganization: new evidence from the Indian Ocean Romahn, S. Mackensen, A. Groeneveld, J. Paetzold, J. 2014 application/pdf https://archimer.ifremer.fr/doc/00274/38489/36944.pdf https://archimer.ifremer.fr/doc/00274/38489/36945.pdf https://archimer.ifremer.fr/doc/00274/38489/81209.pdf https://doi.org/10.5194/cp-10-293-2014 https://archimer.ifremer.fr/doc/00274/38489/ eng eng Copernicus Gesellschaft Mbh https://archimer.ifremer.fr/doc/00274/38489/36944.pdf https://archimer.ifremer.fr/doc/00274/38489/36945.pdf https://archimer.ifremer.fr/doc/00274/38489/81209.pdf doi:10.5194/cp-10-293-2014 https://archimer.ifremer.fr/doc/00274/38489/ Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License. info:eu-repo/semantics/openAccess restricted use CC-BY Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2014 , Vol. 10 , N. 1 , P. 293-303 text Publication info:eu-repo/semantics/article 2014 ftarchimer https://doi.org/10.5194/cp-10-293-2014 2021-09-23T20:26:29Z The importance of intermediate water masses in climate change and ocean circulation has been emphasized recently. In particular, Southern Ocean Intermediate Waters (SOIW), such as Antarctic Intermediate Water and Subantarctic Mode Water, are thought to have acted as active interhemispheric transmitter of climate anomalies. Here we reconstruct changes in SOIW signature and spatial and temporal evolution based on a 40 kyr time series of oxygen and carbon isotopes as well as planktic Mg/Ca based thermometry from Site GeoB12615-4 in the western Indian Ocean. Our data suggest that SOIW transmitted Antarctic temperature trends to the equatorial Indian Ocean via the "oceanic tunnel" mechanism. Moreover, our results reveal that deglacial SOIW carried a signature of aged Southern Ocean deep water. We find no evidence of increased formation of intermediate waters during the deglaciation. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Antarctic Indian Southern Ocean Climate of the Past 10 1 293 303 |
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 |
description |
The importance of intermediate water masses in climate change and ocean circulation has been emphasized recently. In particular, Southern Ocean Intermediate Waters (SOIW), such as Antarctic Intermediate Water and Subantarctic Mode Water, are thought to have acted as active interhemispheric transmitter of climate anomalies. Here we reconstruct changes in SOIW signature and spatial and temporal evolution based on a 40 kyr time series of oxygen and carbon isotopes as well as planktic Mg/Ca based thermometry from Site GeoB12615-4 in the western Indian Ocean. Our data suggest that SOIW transmitted Antarctic temperature trends to the equatorial Indian Ocean via the "oceanic tunnel" mechanism. Moreover, our results reveal that deglacial SOIW carried a signature of aged Southern Ocean deep water. We find no evidence of increased formation of intermediate waters during the deglaciation. |
format |
Article in Journal/Newspaper |
author |
Romahn, S. Mackensen, A. Groeneveld, J. Paetzold, J. |
spellingShingle |
Romahn, S. Mackensen, A. Groeneveld, J. Paetzold, J. Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
author_facet |
Romahn, S. Mackensen, A. Groeneveld, J. Paetzold, J. |
author_sort |
Romahn, S. |
title |
Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
title_short |
Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
title_full |
Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
title_fullStr |
Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
title_full_unstemmed |
Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
title_sort |
deglacial intermediate water reorganization: new evidence from the indian ocean |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2014 |
url |
https://archimer.ifremer.fr/doc/00274/38489/36944.pdf https://archimer.ifremer.fr/doc/00274/38489/36945.pdf https://archimer.ifremer.fr/doc/00274/38489/81209.pdf https://doi.org/10.5194/cp-10-293-2014 https://archimer.ifremer.fr/doc/00274/38489/ |
geographic |
Antarctic Indian Southern Ocean |
geographic_facet |
Antarctic Indian Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2014 , Vol. 10 , N. 1 , P. 293-303 |
op_relation |
https://archimer.ifremer.fr/doc/00274/38489/36944.pdf https://archimer.ifremer.fr/doc/00274/38489/36945.pdf https://archimer.ifremer.fr/doc/00274/38489/81209.pdf doi:10.5194/cp-10-293-2014 https://archimer.ifremer.fr/doc/00274/38489/ |
op_rights |
Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License. info:eu-repo/semantics/openAccess restricted use |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/cp-10-293-2014 |
container_title |
Climate of the Past |
container_volume |
10 |
container_issue |
1 |
container_start_page |
293 |
op_container_end_page |
303 |
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1766254141701619712 |