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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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00020596 2023-05-15T13:41:02+02:00 Deglacial intermediate water reorganization: new evidence from the Indian Ocean Romahn, S. Mackensen, A. Groeneveld, J. Pätzold, J. 2014-02 electronic https://doi.org/10.5194/cp-10-293-2014 https://noa.gwlb.de/receive/cop_mods_00020596 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020551/cp-10-293-2014.pdf https://cp.copernicus.org/articles/10/293/2014/cp-10-293-2014.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-10-293-2014 https://noa.gwlb.de/receive/cop_mods_00020596 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020551/cp-10-293-2014.pdf https://cp.copernicus.org/articles/10/293/2014/cp-10-293-2014.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2014 ftnonlinearchiv https://doi.org/10.5194/cp-10-293-2014 2022-02-08T22:52:03Z 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 Niedersächsisches Online-Archiv NOA Antarctic Indian Southern Ocean Climate of the Past 10 1 293 303 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Romahn, S. Mackensen, A. Groeneveld, J. Pätzold, J. Deglacial intermediate water reorganization: new evidence from the Indian Ocean |
topic_facet |
article Verlagsveröffentlichung |
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. Pätzold, J. |
author_facet |
Romahn, S. Mackensen, A. Groeneveld, J. Pätzold, 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 Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/cp-10-293-2014 https://noa.gwlb.de/receive/cop_mods_00020596 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020551/cp-10-293-2014.pdf https://cp.copernicus.org/articles/10/293/2014/cp-10-293-2014.pdf |
geographic |
Antarctic Indian Southern Ocean |
geographic_facet |
Antarctic Indian Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-10-293-2014 https://noa.gwlb.de/receive/cop_mods_00020596 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00020551/cp-10-293-2014.pdf https://cp.copernicus.org/articles/10/293/2014/cp-10-293-2014.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-10-293-2014 |
container_title |
Climate of the Past |
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10 |
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1 |
container_start_page |
293 |
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303 |
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1766144797039394816 |