Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements
International audience While there are no indications of mixing back to 800 000 years in the EPICA Dome C ice core record, comparison with marine sediment records shows significant differences in the timing and duration of events prior to stage 11 (~430 ka, thousands of years before 1950). A relatio...
Published in: | Climate of the Past |
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Main Authors: | , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2007
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Subjects: | |
Online Access: | https://hal.science/hal-00330756 https://hal.science/hal-00330756/document https://hal.science/hal-00330756/file/cp-3-341-2007.pdf https://doi.org/10.5194/CP-3-341-2007 |
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Open Polar |
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EPHE (Ecole pratique des hautes études, Paris): HAL |
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English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Dreyfus, G. B. Parrenin, F. Lemieux-Dudon, B. Durand, Geoffroy Masson-Delmotte, Valérie Jouzel, Jean Barnola, J.-M. Panno, L. Spahni, R. Tisserand, A. Siegenthaler, U. Leuenberger, M. Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience While there are no indications of mixing back to 800 000 years in the EPICA Dome C ice core record, comparison with marine sediment records shows significant differences in the timing and duration of events prior to stage 11 (~430 ka, thousands of years before 1950). A relationship between the isotopic composition of atmospheric oxygen (d 18 O of O 2 , noted d 18 O atm ) and daily northern hemisphere summer insolation has been observed for the youngest four climate cycles. Here we use this relationship with new d 18 O of O 2 measurements to show that anomalous flow in the bottom 500 m of the core distorts the duration of events by up to a factor of 2. By tuning d 18 O atm to orbital precession we derive a corrected thinning function and present a revised age scale for the interval corresponding to Marine Isotope Stages 11–20 in the EPICA Dome C ice core. Uncertainty in the phasing of d 18 O atm with respect to insolation variations in the precession band limits the accuracy of this new agescale to ±6 kyr (thousand of years). The previously reported ~30 kyr duration of interglacial stage 11 is unchanged. In contrast, the duration of stage 15.1 is reduced by a factor of 2, from 31 to 16 kyr. |
author2 |
Department of Geosciences Princeton Princeton University 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) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)) Physics Institute Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Dreyfus, G. B. Parrenin, F. Lemieux-Dudon, B. Durand, Geoffroy Masson-Delmotte, Valérie Jouzel, Jean Barnola, J.-M. Panno, L. Spahni, R. Tisserand, A. Siegenthaler, U. Leuenberger, M. |
author_facet |
Dreyfus, G. B. Parrenin, F. Lemieux-Dudon, B. Durand, Geoffroy Masson-Delmotte, Valérie Jouzel, Jean Barnola, J.-M. Panno, L. Spahni, R. Tisserand, A. Siegenthaler, U. Leuenberger, M. |
author_sort |
Dreyfus, G. B. |
title |
Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements |
title_short |
Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements |
title_full |
Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements |
title_fullStr |
Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements |
title_full_unstemmed |
Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements |
title_sort |
anomalous flow below 2700 m in the epica dome c ice core detected using d 18 o of atmospheric oxygen measurements |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00330756 https://hal.science/hal-00330756/document https://hal.science/hal-00330756/file/cp-3-341-2007.pdf https://doi.org/10.5194/CP-3-341-2007 |
genre |
EPICA ice core |
genre_facet |
EPICA ice core |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-00330756 Climate of the Past, 2007, 3 (2), pp.341-353. ⟨10.5194/CP-3-341-2007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/CP-3-341-2007 hal-00330756 https://hal.science/hal-00330756 https://hal.science/hal-00330756/document https://hal.science/hal-00330756/file/cp-3-341-2007.pdf doi:10.5194/CP-3-341-2007 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/CP-3-341-2007 |
container_title |
Climate of the Past |
container_volume |
3 |
container_issue |
2 |
container_start_page |
341 |
op_container_end_page |
353 |
_version_ |
1801375207269597184 |
spelling |
ftecolephe:oai:HAL:hal-00330756v1 2024-06-09T07:45:43+00:00 Anomalous flow below 2700 m in the EPICA Dome C ice core detected using d 18 O of atmospheric oxygen measurements Dreyfus, G. B. Parrenin, F. Lemieux-Dudon, B. Durand, Geoffroy Masson-Delmotte, Valérie Jouzel, Jean Barnola, J.-M. Panno, L. Spahni, R. Tisserand, A. Siegenthaler, U. Leuenberger, M. Department of Geosciences Princeton Princeton University 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) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)) Physics Institute Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2007-06-21 https://hal.science/hal-00330756 https://hal.science/hal-00330756/document https://hal.science/hal-00330756/file/cp-3-341-2007.pdf https://doi.org/10.5194/CP-3-341-2007 en eng HAL CCSD European Geosciences Union (EGU) info:eu-repo/semantics/altIdentifier/doi/10.5194/CP-3-341-2007 hal-00330756 https://hal.science/hal-00330756 https://hal.science/hal-00330756/document https://hal.science/hal-00330756/file/cp-3-341-2007.pdf doi:10.5194/CP-3-341-2007 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.science/hal-00330756 Climate of the Past, 2007, 3 (2), pp.341-353. ⟨10.5194/CP-3-341-2007⟩ [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftecolephe https://doi.org/10.5194/CP-3-341-2007 2024-05-16T10:56:29Z International audience While there are no indications of mixing back to 800 000 years in the EPICA Dome C ice core record, comparison with marine sediment records shows significant differences in the timing and duration of events prior to stage 11 (~430 ka, thousands of years before 1950). A relationship between the isotopic composition of atmospheric oxygen (d 18 O of O 2 , noted d 18 O atm ) and daily northern hemisphere summer insolation has been observed for the youngest four climate cycles. Here we use this relationship with new d 18 O of O 2 measurements to show that anomalous flow in the bottom 500 m of the core distorts the duration of events by up to a factor of 2. By tuning d 18 O atm to orbital precession we derive a corrected thinning function and present a revised age scale for the interval corresponding to Marine Isotope Stages 11–20 in the EPICA Dome C ice core. Uncertainty in the phasing of d 18 O atm with respect to insolation variations in the precession band limits the accuracy of this new agescale to ±6 kyr (thousand of years). The previously reported ~30 kyr duration of interglacial stage 11 is unchanged. In contrast, the duration of stage 15.1 is reduced by a factor of 2, from 31 to 16 kyr. Article in Journal/Newspaper EPICA ice core EPHE (Ecole pratique des hautes études, Paris): HAL Climate of the Past 3 2 341 353 |