Numerical evidence for thermohaline circulation reversals during the Maastrichtian
The sensitivity of the Maastrichtian thermohaline circulation to the opening/closing of marine communications between the Arctic and North Pacific oceans is investigated through a set of numerical experiments using the model CLIMBER-2 ( Earth Model of Intermediate Complexity). We show here that the...
Published in: | Geochemistry, Geophysics, Geosystems |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-00085486 https://hal.science/hal-00085486/document https://hal.science/hal-00085486/file/Puc-at_et_al-2005-Geochemistry,_Geophysics,_Geosystems.pdf https://doi.org/10.1029/2005GC000998 |
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ftunivparis:oai:HAL:hal-00085486v1 2024-04-28T08:06:45+00:00 Numerical evidence for thermohaline circulation reversals during the Maastrichtian Puceat, Emmanuelle Donnadieu, Yannick Ramstein, Gilles Fluteau, Frédéric Guillocheau, François Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) Géosciences Rennes (GR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre Armoricain de Recherches en Environnement-Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.science/hal-00085486 https://hal.science/hal-00085486/document https://hal.science/hal-00085486/file/Puc-at_et_al-2005-Geochemistry,_Geophysics,_Geosystems.pdf https://doi.org/10.1029/2005GC000998 en eng HAL CCSD AGU and the Geochemical Society info:eu-repo/semantics/altIdentifier/doi/10.1029/2005GC000998 hal-00085486 https://hal.science/hal-00085486 https://hal.science/hal-00085486/document https://hal.science/hal-00085486/file/Puc-at_et_al-2005-Geochemistry,_Geophysics,_Geosystems.pdf doi:10.1029/2005GC000998 info:eu-repo/semantics/OpenAccess ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.science/hal-00085486 Geochemistry, Geophysics, Geosystems, 2005, 6, art. no. Q11012, 13 p. ⟨10.1029/2005GC000998⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2005 ftunivparis https://doi.org/10.1029/2005GC000998 2024-04-09T15:29:30Z The sensitivity of the Maastrichtian thermohaline circulation to the opening/closing of marine communications between the Arctic and North Pacific oceans is investigated through a set of numerical experiments using the model CLIMBER-2 ( Earth Model of Intermediate Complexity). We show here that the opening or closing of an Arctic-Pacific marine gateway induces transitions between different equilibrium states of the thermohaline circulation. Sensitivity tests of the inferred modes of thermohaline circulation to atmospheric CO2 level changes have also been explored. An abrupt switch in deep convection from high northern to high southern latitudes, a change consistent with isotopic evidences, is reproduced by our simulations. The switch is caused by a combination of increased atmospheric CO2 concentration and inflow in the North Pacific of low-salinity Arctic waters when the Arctic-Pacific marine gateway is opened. The state of the gateway (open/closed) may have changed rapidly through variations in sea level that have been inferred for the Maastrichtian period. Article in Journal/Newspaper Arctic Université de Paris: Portail HAL Geochemistry, Geophysics, Geosystems 6 11 n/a n/a |
institution |
Open Polar |
collection |
Université de Paris: Portail HAL |
op_collection_id |
ftunivparis |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Puceat, Emmanuelle Donnadieu, Yannick Ramstein, Gilles Fluteau, Frédéric Guillocheau, François Numerical evidence for thermohaline circulation reversals during the Maastrichtian |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
The sensitivity of the Maastrichtian thermohaline circulation to the opening/closing of marine communications between the Arctic and North Pacific oceans is investigated through a set of numerical experiments using the model CLIMBER-2 ( Earth Model of Intermediate Complexity). We show here that the opening or closing of an Arctic-Pacific marine gateway induces transitions between different equilibrium states of the thermohaline circulation. Sensitivity tests of the inferred modes of thermohaline circulation to atmospheric CO2 level changes have also been explored. An abrupt switch in deep convection from high northern to high southern latitudes, a change consistent with isotopic evidences, is reproduced by our simulations. The switch is caused by a combination of increased atmospheric CO2 concentration and inflow in the North Pacific of low-salinity Arctic waters when the Arctic-Pacific marine gateway is opened. The state of the gateway (open/closed) may have changed rapidly through variations in sea level that have been inferred for the Maastrichtian period. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modélisation du climat (CLIM) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Institut de Physique du Globe de Paris (IPGP) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS) Géosciences Rennes (GR) Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre Armoricain de Recherches en Environnement-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Puceat, Emmanuelle Donnadieu, Yannick Ramstein, Gilles Fluteau, Frédéric Guillocheau, François |
author_facet |
Puceat, Emmanuelle Donnadieu, Yannick Ramstein, Gilles Fluteau, Frédéric Guillocheau, François |
author_sort |
Puceat, Emmanuelle |
title |
Numerical evidence for thermohaline circulation reversals during the Maastrichtian |
title_short |
Numerical evidence for thermohaline circulation reversals during the Maastrichtian |
title_full |
Numerical evidence for thermohaline circulation reversals during the Maastrichtian |
title_fullStr |
Numerical evidence for thermohaline circulation reversals during the Maastrichtian |
title_full_unstemmed |
Numerical evidence for thermohaline circulation reversals during the Maastrichtian |
title_sort |
numerical evidence for thermohaline circulation reversals during the maastrichtian |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00085486 https://hal.science/hal-00085486/document https://hal.science/hal-00085486/file/Puc-at_et_al-2005-Geochemistry,_Geophysics,_Geosystems.pdf https://doi.org/10.1029/2005GC000998 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 1525-2027 EISSN: 1525-2027 Geochemistry, Geophysics, Geosystems https://hal.science/hal-00085486 Geochemistry, Geophysics, Geosystems, 2005, 6, art. no. Q11012, 13 p. ⟨10.1029/2005GC000998⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2005GC000998 hal-00085486 https://hal.science/hal-00085486 https://hal.science/hal-00085486/document https://hal.science/hal-00085486/file/Puc-at_et_al-2005-Geochemistry,_Geophysics,_Geosystems.pdf doi:10.1029/2005GC000998 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2005GC000998 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
6 |
container_issue |
11 |
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n/a |
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1797576119416782848 |