Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay)
International audience The lithium/magnesium (Li/Mg) molar ratios, radiocarbon measurements (Δ 14 C) and Nd-isotopic composition (ɛNd) of the aragonite skeleton of a branching cold-water coral (CWC) species Madrepora oculata collected alive in the Bay of Biscay at ˜691 m water depth were investigate...
Published in: | Earth and Planetary Science Letters |
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Main Authors: | , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-00873429 https://doi.org/10.1016/J.EPSL.2013.01.012 |
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ftccsdartic:oai:HAL:hal-00873429v1 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Panoply [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
spellingShingle |
Panoply [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Montero-Serrano, Jean-Carlos Frank, Norbert Tisnérat-Laborde, Nadine Colin, Christophe Wu, Chung-Che Lin, Ke Shen, Chuan-Chou Copard, Kevin Orejas, Covadonga Gori, Andrea De Mol, Lies Van Rooij, David Reverdin, Gilles Douville, Eric Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) |
topic_facet |
Panoply [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
International audience The lithium/magnesium (Li/Mg) molar ratios, radiocarbon measurements (Δ 14 C) and Nd-isotopic composition (ɛNd) of the aragonite skeleton of a branching cold-water coral (CWC) species Madrepora oculata collected alive in the Bay of Biscay at ˜691 m water depth were investigated to reconstruct a robust record of the mid-depth water mass dynamics between 1950 and 1990 AD. Temperature estimates based on the skeletons Li/Mg molar ratios reveal small decadal changes of about 1 °C at thermocline depth synchronous to and of similar amplitude as surface temperature anomalies. Δ 14 C measurements shows quasi-decadal oscillations of 15‰ around pre-bomb Δ 14 C average value of -59±6‰ and post-bomb Δ 14 C of -12±6‰, which most likely reflect decadal changes of water mass exchange across the thermocline. The coral ɛNd values remain in narrow ranges of -11.9 to -10.2, similar to the isotopic composition of East North Atlantic Central Water, but show highest values in the late 1950s, and early 1960s, 1970s, and 1980s. The punctuated changes of the coral Nd-isotopic composition may thus reflect periods of particular enhanced advection of temperate intermediate water (mid-depth Subpolar Gyre/Mediterranean Sea Water). Altogether, our robust multi-proxy record provides new evidence that Northern Hemisphere atmospheric variability (such as, North Atlantic Oscillation and East Atlantic pattern) drives changes not only in the thermocline but also in the mid-depth water-mass advection patterns in the Northeastern Atlantic margin. However, the interannual variability of our record remains to be tested. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géosciences Paris Saclay (GEOPS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Géochrononologie Traceurs Archéométrie (GEOTRAC) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Échanges dans la couche de surface : des pôles aux tropiques (SURF) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Montero-Serrano, Jean-Carlos Frank, Norbert Tisnérat-Laborde, Nadine Colin, Christophe Wu, Chung-Che Lin, Ke Shen, Chuan-Chou Copard, Kevin Orejas, Covadonga Gori, Andrea De Mol, Lies Van Rooij, David Reverdin, Gilles Douville, Eric |
author_facet |
Montero-Serrano, Jean-Carlos Frank, Norbert Tisnérat-Laborde, Nadine Colin, Christophe Wu, Chung-Che Lin, Ke Shen, Chuan-Chou Copard, Kevin Orejas, Covadonga Gori, Andrea De Mol, Lies Van Rooij, David Reverdin, Gilles Douville, Eric |
author_sort |
Montero-Serrano, Jean-Carlos |
title |
Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) |
title_short |
Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) |
title_full |
Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) |
title_fullStr |
Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) |
title_full_unstemmed |
Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) |
title_sort |
decadal changes in the mid-depth water mass dynamic of the northeastern atlantic margin (bay of biscay) |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.archives-ouvertes.fr/hal-00873429 https://doi.org/10.1016/J.EPSL.2013.01.012 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.archives-ouvertes.fr/hal-00873429 Earth and Planetary Science Letters, Elsevier, 2013, 364, pp.134-144. ⟨10.1016/J.EPSL.2013.01.012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.EPSL.2013.01.012 hal-00873429 https://hal.archives-ouvertes.fr/hal-00873429 BIBCODE: 2013E&PSL.364.134M doi:10.1016/J.EPSL.2013.01.012 |
op_doi |
https://doi.org/10.1016/J.EPSL.2013.01.012 |
container_title |
Earth and Planetary Science Letters |
container_volume |
364 |
container_start_page |
134 |
op_container_end_page |
144 |
_version_ |
1766129362103435264 |
spelling |
ftccsdartic:oai:HAL:hal-00873429v1 2023-05-15T17:31:40+02:00 Decadal changes in the mid-depth water mass dynamic of the Northeastern Atlantic margin (Bay of Biscay) Montero-Serrano, Jean-Carlos Frank, Norbert Tisnérat-Laborde, Nadine Colin, Christophe Wu, Chung-Che Lin, Ke Shen, Chuan-Chou Copard, Kevin Orejas, Covadonga Gori, Andrea De Mol, Lies Van Rooij, David Reverdin, Gilles Douville, Eric Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Géosciences Paris Saclay (GEOPS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Géochrononologie Traceurs Archéométrie (GEOTRAC) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Échanges dans la couche de surface : des pôles aux tropiques (SURF) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2013-02 https://hal.archives-ouvertes.fr/hal-00873429 https://doi.org/10.1016/J.EPSL.2013.01.012 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/J.EPSL.2013.01.012 hal-00873429 https://hal.archives-ouvertes.fr/hal-00873429 BIBCODE: 2013E&PSL.364.134M doi:10.1016/J.EPSL.2013.01.012 ISSN: 0012-821X Earth and Planetary Science Letters https://hal.archives-ouvertes.fr/hal-00873429 Earth and Planetary Science Letters, Elsevier, 2013, 364, pp.134-144. ⟨10.1016/J.EPSL.2013.01.012⟩ Panoply [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2013 ftccsdartic https://doi.org/10.1016/J.EPSL.2013.01.012 2021-12-19T03:13:22Z International audience The lithium/magnesium (Li/Mg) molar ratios, radiocarbon measurements (Δ 14 C) and Nd-isotopic composition (ɛNd) of the aragonite skeleton of a branching cold-water coral (CWC) species Madrepora oculata collected alive in the Bay of Biscay at ˜691 m water depth were investigated to reconstruct a robust record of the mid-depth water mass dynamics between 1950 and 1990 AD. Temperature estimates based on the skeletons Li/Mg molar ratios reveal small decadal changes of about 1 °C at thermocline depth synchronous to and of similar amplitude as surface temperature anomalies. Δ 14 C measurements shows quasi-decadal oscillations of 15‰ around pre-bomb Δ 14 C average value of -59±6‰ and post-bomb Δ 14 C of -12±6‰, which most likely reflect decadal changes of water mass exchange across the thermocline. The coral ɛNd values remain in narrow ranges of -11.9 to -10.2, similar to the isotopic composition of East North Atlantic Central Water, but show highest values in the late 1950s, and early 1960s, 1970s, and 1980s. The punctuated changes of the coral Nd-isotopic composition may thus reflect periods of particular enhanced advection of temperate intermediate water (mid-depth Subpolar Gyre/Mediterranean Sea Water). Altogether, our robust multi-proxy record provides new evidence that Northern Hemisphere atmospheric variability (such as, North Atlantic Oscillation and East Atlantic pattern) drives changes not only in the thermocline but also in the mid-depth water-mass advection patterns in the Northeastern Atlantic margin. However, the interannual variability of our record remains to be tested. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Earth and Planetary Science Letters 364 134 144 |