Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model
In this study we assimilate measurements of stable carbon isotope compositions delta(13)C and the ratio of cadmium to calcium (Cd/Ca) concentrations from marine sediments into an ocean general circulation model to reconstruct the flow field of the deep-sea during the last glacial maximum (LGM) 21,00...
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ftpubman:oai:pure.mpg.de:item_3187382 2023-08-27T04:10:41+02:00 Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model Winguth, A. Archer, D. Maier-Reimer, E. Mikolajewicz, U. 2000 application/pdf http://hdl.handle.net/21.11116/0000-0005-8058-7 http://hdl.handle.net/21.11116/0000-0005-805A-5 http://hdl.handle.net/21.11116/0000-0005-805B-4 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1029/GM114p0171 http://hdl.handle.net/21.11116/0000-0005-8058-7 http://hdl.handle.net/21.11116/0000-0005-805A-5 http://hdl.handle.net/21.11116/0000-0005-805B-4 info:eu-repo/semantics/openAccess Inverse Methods in Global Biogeochemical Cycles Geophysical Monograph Series Report / Max-Planck-Institut für Meteorologie info:eu-repo/semantics/bookPart 2000 ftpubman https://doi.org/10.1029/GM114p0171 2023-08-02T00:09:28Z In this study we assimilate measurements of stable carbon isotope compositions delta(13)C and the ratio of cadmium to calcium (Cd/Ca) concentrations from marine sediments into an ocean general circulation model to reconstruct the flow field of the deep-sea during the last glacial maximum (LGM) 21,000 years ago. The results of the assimilation confirm that the southward how of North Atlantic Deep Water was shallower during the LGM and this was accompanied by a strong source of glacial North Atlantic Intermediate Water. The optimized glacial flow field in the Southern Ocean is consistent with the Cd/Ca measurements but can not explain delta(13)C changes, suggesting a breakdown of the glacial phosphate-delta(13)C relationship. Book Part North Atlantic Deep Water North Atlantic Southern Ocean Max Planck Society: MPG.PuRe Southern Ocean 171 183 |
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Open Polar |
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Max Planck Society: MPG.PuRe |
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ftpubman |
language |
English |
description |
In this study we assimilate measurements of stable carbon isotope compositions delta(13)C and the ratio of cadmium to calcium (Cd/Ca) concentrations from marine sediments into an ocean general circulation model to reconstruct the flow field of the deep-sea during the last glacial maximum (LGM) 21,000 years ago. The results of the assimilation confirm that the southward how of North Atlantic Deep Water was shallower during the LGM and this was accompanied by a strong source of glacial North Atlantic Intermediate Water. The optimized glacial flow field in the Southern Ocean is consistent with the Cd/Ca measurements but can not explain delta(13)C changes, suggesting a breakdown of the glacial phosphate-delta(13)C relationship. |
format |
Book Part |
author |
Winguth, A. Archer, D. Maier-Reimer, E. Mikolajewicz, U. |
spellingShingle |
Winguth, A. Archer, D. Maier-Reimer, E. Mikolajewicz, U. Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model |
author_facet |
Winguth, A. Archer, D. Maier-Reimer, E. Mikolajewicz, U. |
author_sort |
Winguth, A. |
title |
Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model |
title_short |
Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model |
title_full |
Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model |
title_fullStr |
Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model |
title_full_unstemmed |
Paleonutrient data analysis of the glacial Atlantic using an adjoint ocean general circulation model |
title_sort |
paleonutrient data analysis of the glacial atlantic using an adjoint ocean general circulation model |
publishDate |
2000 |
url |
http://hdl.handle.net/21.11116/0000-0005-8058-7 http://hdl.handle.net/21.11116/0000-0005-805A-5 http://hdl.handle.net/21.11116/0000-0005-805B-4 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Deep Water North Atlantic Southern Ocean |
genre_facet |
North Atlantic Deep Water North Atlantic Southern Ocean |
op_source |
Inverse Methods in Global Biogeochemical Cycles Geophysical Monograph Series Report / Max-Planck-Institut für Meteorologie |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/GM114p0171 http://hdl.handle.net/21.11116/0000-0005-8058-7 http://hdl.handle.net/21.11116/0000-0005-805A-5 http://hdl.handle.net/21.11116/0000-0005-805B-4 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/GM114p0171 |
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171 |
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183 |
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1775352925603758080 |