On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2
International audience The stable carbon isotopic signature of carbon dioxide (δ13CO2) measured in the air occlusions of polar ice provides important constraints on the carbon cycle in past climates. In order to exploit this information for previous glacial periods, one must use deep, clathrated ice...
Published in: | Earth and Planetary Science Letters |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2011
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Subjects: | |
Online Access: | https://insu.hal.science/insu-00647461 https://doi.org/10.1016/j.epsl.2011.05.007 |
id |
ftanrparis:oai:HAL:insu-00647461v1 |
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openpolar |
institution |
Open Polar |
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Portail HAL-ANR (Agence Nationale de la Recherche) |
op_collection_id |
ftanrparis |
language |
English |
topic |
carbon dioxide stable carbon isotope ratio ice core bubble clathrate transformation EPICA Dome C Berkner Island [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
carbon dioxide stable carbon isotope ratio ice core bubble clathrate transformation EPICA Dome C Berkner Island [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Schaefer, Hinrich Lourantou, A. Chappellaz, J. Lüthi, D. Bereiter, B. Barnola, J.M. On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 |
topic_facet |
carbon dioxide stable carbon isotope ratio ice core bubble clathrate transformation EPICA Dome C Berkner Island [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience The stable carbon isotopic signature of carbon dioxide (δ13CO2) measured in the air occlusions of polar ice provides important constraints on the carbon cycle in past climates. In order to exploit this information for previous glacial periods, one must use deep, clathrated ice, where the occluded air is preserved not in bubbles but in the form of air hydrates. Therefore, it must be established whether the original atmospheric δ13CO2 signature can be reconstructed from clathrated ice. We present a comparative study using coeval bubbly ice from Berkner Island and ice from the bubble-clathrate transformation zone (BCTZ) of EPICA Dome C (EDC). In the EDC samples the gas is partitioned into clathrates and remaining bubbles as shown by erroneously low and scattered CO2 concentration values, presenting a worst-case test for δ13CO2 reconstructions. Even so, the reconstructed atmospheric δ13CO2 values show only slightly larger scatter. The difference to data from coeval bubbly ice is statistically significant. However, the 0.16‰ magnitude of the offset is small for practical purposes, especially in light of uncertainty from non-uniform corrections for diffusion related fractionation that could contribute to the discrepancy. Our results are promising for palaeo-atmospheric studies of δ13CO2 using a ball mill dry extraction technique below the BCTZ of ice cores, where gas is not subject to fractionation into microfractures and between clathrate and bubble reservoirs. |
author2 |
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) CLIPS 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)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Climate and Environmental Physics Bern (CEP) Physikalisches Institut Bern Universität Bern = University of Bern = Université de Berne (UNIBE)-Universität Bern = University of Bern = Université de Berne (UNIBE) Oeschger Centre for Climate Change Research (OCCR) Universität Bern = University of Bern = Université de Berne (UNIBE) QUEST-INSU project DESIRE, New Zealand Foundation for Research, Science and Technology contract C01X0703 ANR-07-BLAN-0125,DOME A,Dome A : Observation et Modélisation d'un Environnement extrême en Antarctique(2007) European Project: 243908,EC:FP7:ENV,FP7-ENV-2009-1,PAST4FUTURE(2010) |
format |
Article in Journal/Newspaper |
author |
Schaefer, Hinrich Lourantou, A. Chappellaz, J. Lüthi, D. Bereiter, B. Barnola, J.M. |
author_facet |
Schaefer, Hinrich Lourantou, A. Chappellaz, J. Lüthi, D. Bereiter, B. Barnola, J.M. |
author_sort |
Schaefer, Hinrich |
title |
On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 |
title_short |
On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 |
title_full |
On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 |
title_fullStr |
On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 |
title_full_unstemmed |
On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 |
title_sort |
on the suitability of partially clathrated ice for analysis of concentration and δ13c of palaeo-atmospheric co2 |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://insu.hal.science/insu-00647461 https://doi.org/10.1016/j.epsl.2011.05.007 |
genre |
Berkner Island EPICA ice core |
genre_facet |
Berkner Island EPICA ice core |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://insu.hal.science/insu-00647461 Earth and Planetary Science Letters, 2011, 307 (3-4), pp.334-340. ⟨10.1016/j.epsl.2011.05.007⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2011.05.007 info:eu-repo/grantAgreement/EC/FP7/243908/EU/Climate change - Learning from the past climate/PAST4FUTURE insu-00647461 https://insu.hal.science/insu-00647461 doi:10.1016/j.epsl.2011.05.007 |
op_doi |
https://doi.org/10.1016/j.epsl.2011.05.007 |
container_title |
Earth and Planetary Science Letters |
container_volume |
307 |
container_issue |
3-4 |
container_start_page |
334 |
op_container_end_page |
340 |
_version_ |
1810436840611643392 |
spelling |
ftanrparis:oai:HAL:insu-00647461v1 2024-09-15T17:59:45+00:00 On the suitability of partially clathrated ice for analysis of concentration and δ13C of palaeo-atmospheric CO2 Schaefer, Hinrich Lourantou, A. Chappellaz, J. Lüthi, D. Bereiter, B. Barnola, J.M. 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) CLIPS 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)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Climate and Environmental Physics Bern (CEP) Physikalisches Institut Bern Universität Bern = University of Bern = Université de Berne (UNIBE)-Universität Bern = University of Bern = Université de Berne (UNIBE) Oeschger Centre for Climate Change Research (OCCR) Universität Bern = University of Bern = Université de Berne (UNIBE) QUEST-INSU project DESIRE, New Zealand Foundation for Research, Science and Technology contract C01X0703 ANR-07-BLAN-0125,DOME A,Dome A : Observation et Modélisation d'un Environnement extrême en Antarctique(2007) European Project: 243908,EC:FP7:ENV,FP7-ENV-2009-1,PAST4FUTURE(2010) 2011-07-15 https://insu.hal.science/insu-00647461 https://doi.org/10.1016/j.epsl.2011.05.007 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2011.05.007 info:eu-repo/grantAgreement/EC/FP7/243908/EU/Climate change - Learning from the past climate/PAST4FUTURE insu-00647461 https://insu.hal.science/insu-00647461 doi:10.1016/j.epsl.2011.05.007 ISSN: 0012-821X Earth and Planetary Science Letters https://insu.hal.science/insu-00647461 Earth and Planetary Science Letters, 2011, 307 (3-4), pp.334-340. ⟨10.1016/j.epsl.2011.05.007⟩ carbon dioxide stable carbon isotope ratio ice core bubble clathrate transformation EPICA Dome C Berkner Island [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2011 ftanrparis https://doi.org/10.1016/j.epsl.2011.05.007 2024-07-24T23:34:07Z International audience The stable carbon isotopic signature of carbon dioxide (δ13CO2) measured in the air occlusions of polar ice provides important constraints on the carbon cycle in past climates. In order to exploit this information for previous glacial periods, one must use deep, clathrated ice, where the occluded air is preserved not in bubbles but in the form of air hydrates. Therefore, it must be established whether the original atmospheric δ13CO2 signature can be reconstructed from clathrated ice. We present a comparative study using coeval bubbly ice from Berkner Island and ice from the bubble-clathrate transformation zone (BCTZ) of EPICA Dome C (EDC). In the EDC samples the gas is partitioned into clathrates and remaining bubbles as shown by erroneously low and scattered CO2 concentration values, presenting a worst-case test for δ13CO2 reconstructions. Even so, the reconstructed atmospheric δ13CO2 values show only slightly larger scatter. The difference to data from coeval bubbly ice is statistically significant. However, the 0.16‰ magnitude of the offset is small for practical purposes, especially in light of uncertainty from non-uniform corrections for diffusion related fractionation that could contribute to the discrepancy. Our results are promising for palaeo-atmospheric studies of δ13CO2 using a ball mill dry extraction technique below the BCTZ of ice cores, where gas is not subject to fractionation into microfractures and between clathrate and bubble reservoirs. Article in Journal/Newspaper Berkner Island EPICA ice core Portail HAL-ANR (Agence Nationale de la Recherche) Earth and Planetary Science Letters 307 3-4 334 340 |