Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr
International audience High‐resolution chemistry analysis and electrical measurements performed on two ice core records (European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok) spanning the last 45 kyr allow stratigraphic correlations by matching volcanic events. Several common even...
Published in: | Journal of Geophysical Research: Atmospheres |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2004
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Subjects: | |
Online Access: | https://hal.science/hal-03109879 https://hal.science/hal-03109879/document https://hal.science/hal-03109879/file/2003JD004180.pdf https://doi.org/10.1029/2003JD004180 |
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ftinraparis:oai:HAL:hal-03109879v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
Antarctic ice core comparison accumulation rate changes glacial-Holocene atmospheric circulation changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
Antarctic ice core comparison accumulation rate changes glacial-Holocene atmospheric circulation changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Udisti, R. Becagli, S. Castellano, E. Delmonte, B. Jouzel, J. Petit, J.R. Schwander, J. Stenni, B. Wolff, E.W. Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
topic_facet |
Antarctic ice core comparison accumulation rate changes glacial-Holocene atmospheric circulation changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience High‐resolution chemistry analysis and electrical measurements performed on two ice core records (European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok) spanning the last 45 kyr allow stratigraphic correlations by matching volcanic events. Several common events were identified along the two ice cores on the basis of acidity and sulphate spikes in snow layers. Timescales were matched through comparison with isotope (δD) profiles and using the Antarctic cold reversal (ACR) minimum, a 10Be peak, and a dust spike as temporal checkpoints. Ratios of relative snow accumulation at the two sites during the Holocene, in the glacial‐interglacial transition and in the last part of the glacial period, were reconstructed by finding the best fit between Dome C and Vostok depths recording the same events. After accounting for thinning of the layers as they are buried within the glacier, the Dome C‐Vostok accumulation ratio, expected to be roughly constant from the conventional accumulation‐temperature‐isotope approach, is 1.12 for the glacial period but increases to as much as 1.44 for a large part of the Holocene. Glaciological effects, mainly related to the geographic origin of the Vostok ice along the Ridge B‐Vostok axis, can account for only a minor fraction of this change. Instead, we argue that accumulation variability between the cores stems from differential changes in atmospheric circulation during these respective climatic periods at the two sites. Regional changes in atmospheric circulation are proposed with a negative anomaly in Dome C, a positive accumulation anomaly in Vostok, or a combination of both during glacial climate. Our approach may help to improve ice core dating by: (1) revealing anomalies in accumulation‐rate estimation based on the classical thermodynamic method and (2) supporting the necessity to take into account contributions due to changes in atmospheric circulation processes. |
author2 |
Dipartimento di Chimica 'Ugo Schiff' Sesto Fiorentino (DICUS UniFI) Università degli Studi di Firenze = University of Florence = Université de Florence (UniFI) 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) Department of Earth and Environmental Sciences Milano Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB) 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) 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 Bern Universität Bern = University of Bern = Université de Berne (UNIBE) Department of Geological, Environmental and Marine Sciences Trieste Università degli studi di Trieste = University of Trieste British Antarctic Survey (BAS) Natural Environment Research Council (NERC) |
format |
Article in Journal/Newspaper |
author |
Udisti, R. Becagli, S. Castellano, E. Delmonte, B. Jouzel, J. Petit, J.R. Schwander, J. Stenni, B. Wolff, E.W. |
author_facet |
Udisti, R. Becagli, S. Castellano, E. Delmonte, B. Jouzel, J. Petit, J.R. Schwander, J. Stenni, B. Wolff, E.W. |
author_sort |
Udisti, R. |
title |
Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
title_short |
Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
title_full |
Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
title_fullStr |
Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
title_full_unstemmed |
Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
title_sort |
stratigraphic correlations between the european project for ice coring in antarctica (epica) dome c and vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-03109879 https://hal.science/hal-03109879/document https://hal.science/hal-03109879/file/2003JD004180.pdf https://doi.org/10.1029/2003JD004180 |
genre |
Antarc* Antarctic Antarctica EPICA ice core |
genre_facet |
Antarc* Antarctic Antarctica EPICA ice core |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-03109879 Journal of Geophysical Research, 2004, 109 (D8), ⟨10.1029/2003JD004180⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2003JD004180 hal-03109879 https://hal.science/hal-03109879 https://hal.science/hal-03109879/document https://hal.science/hal-03109879/file/2003JD004180.pdf doi:10.1029/2003JD004180 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2003JD004180 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
109 |
container_issue |
D8 |
_version_ |
1810490515902169088 |
spelling |
ftinraparis:oai:HAL:hal-03109879v1 2024-09-15T17:43:30+00:00 Stratigraphic correlations between the European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok ice cores showing the relative variations of snow accumulation over the past 45 kyr Udisti, R. Becagli, S. Castellano, E. Delmonte, B. Jouzel, J. Petit, J.R. Schwander, J. Stenni, B. Wolff, E.W. Dipartimento di Chimica 'Ugo Schiff' Sesto Fiorentino (DICUS UniFI) Università degli Studi di Firenze = University of Florence = Université de Florence (UniFI) 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) Department of Earth and Environmental Sciences Milano Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB) 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) 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 Bern Universität Bern = University of Bern = Université de Berne (UNIBE) Department of Geological, Environmental and Marine Sciences Trieste Università degli studi di Trieste = University of Trieste British Antarctic Survey (BAS) Natural Environment Research Council (NERC) 2004 https://hal.science/hal-03109879 https://hal.science/hal-03109879/document https://hal.science/hal-03109879/file/2003JD004180.pdf https://doi.org/10.1029/2003JD004180 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2003JD004180 hal-03109879 https://hal.science/hal-03109879 https://hal.science/hal-03109879/document https://hal.science/hal-03109879/file/2003JD004180.pdf doi:10.1029/2003JD004180 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-03109879 Journal of Geophysical Research, 2004, 109 (D8), ⟨10.1029/2003JD004180⟩ Antarctic ice core comparison accumulation rate changes glacial-Holocene atmospheric circulation changes [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2004 ftinraparis https://doi.org/10.1029/2003JD004180 2024-09-03T14:37:19Z International audience High‐resolution chemistry analysis and electrical measurements performed on two ice core records (European Project for Ice Coring in Antarctica (EPICA) Dome C and Vostok) spanning the last 45 kyr allow stratigraphic correlations by matching volcanic events. Several common events were identified along the two ice cores on the basis of acidity and sulphate spikes in snow layers. Timescales were matched through comparison with isotope (δD) profiles and using the Antarctic cold reversal (ACR) minimum, a 10Be peak, and a dust spike as temporal checkpoints. Ratios of relative snow accumulation at the two sites during the Holocene, in the glacial‐interglacial transition and in the last part of the glacial period, were reconstructed by finding the best fit between Dome C and Vostok depths recording the same events. After accounting for thinning of the layers as they are buried within the glacier, the Dome C‐Vostok accumulation ratio, expected to be roughly constant from the conventional accumulation‐temperature‐isotope approach, is 1.12 for the glacial period but increases to as much as 1.44 for a large part of the Holocene. Glaciological effects, mainly related to the geographic origin of the Vostok ice along the Ridge B‐Vostok axis, can account for only a minor fraction of this change. Instead, we argue that accumulation variability between the cores stems from differential changes in atmospheric circulation during these respective climatic periods at the two sites. Regional changes in atmospheric circulation are proposed with a negative anomaly in Dome C, a positive accumulation anomaly in Vostok, or a combination of both during glacial climate. Our approach may help to improve ice core dating by: (1) revealing anomalies in accumulation‐rate estimation based on the classical thermodynamic method and (2) supporting the necessity to take into account contributions due to changes in atmospheric circulation processes. Article in Journal/Newspaper Antarc* Antarctic Antarctica EPICA ice core Institut National de la Recherche Agronomique: ProdINRA Journal of Geophysical Research: Atmospheres 109 D8 |