A comparison of the present and last interglacial periods in six Antarctic ice cores
International audience We compare the present and last interglacial periods as recorded in Antarctic water stable isotope records now available at various temporal resolutions from six East Antarctic ice cores: Vostok, Taylor Dome, EPICA Dome C (EDC), EPICA Dronning Maud Land (EDML), Dome Fuji and t...
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ftuniversailles:oai:HAL:hal-04113910v1 2023-06-18T03:38:16+02:00 A comparison of the present and last interglacial periods in six Antarctic ice cores Masson-Delmotte, V. Buiron, D. Ekaykin, A. Frezzotti, M. Gallée, H. Jouzel, J. Krinner, G. Landais, A. Motoyama, H. Oerter, H. Pol, K. Pollard, D. Ritz, C. Schlosser, E. Sime, L. C. Sodemann, H. Stenni, B. Uemura, R. Vimeux, F. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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-Saclay-Centre National de la Recherche Scientifique (CNRS) Hydrosciences Montpellier (HSM) Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2011 https://hal.science/hal-04113910 https://doi.org/10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 hal-04113910 https://hal.science/hal-04113910 BIBCODE: 2011CliPa.7.397M doi:10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 Climate of the Past https://hal.science/hal-04113910 Climate of the Past, 2011, 7, pp.397-423. ⟨10.5194/cp-7-397-201110.5194/cpd-6-2267-2010⟩ Earth Science [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2011 ftuniversailles https://doi.org/10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 2023-06-06T22:41:18Z International audience We compare the present and last interglacial periods as recorded in Antarctic water stable isotope records now available at various temporal resolutions from six East Antarctic ice cores: Vostok, Taylor Dome, EPICA Dome C (EDC), EPICA Dronning Maud Land (EDML), Dome Fuji and the recent TALDICE ice core from Talos Dome. We first review the different modern site characteristics in terms of ice flow, meteorological conditions, precipitation intermittency and moisture origin, as depicted by meteorological data, atmospheric reanalyses and Lagrangian moisture source diagnostics. These different factors can indeed alter the relationships between temperature and water stable isotopes. Using five records with sufficient resolution on the EDC3 age scale, common features are quantified through principal component analyses. Consistent with instrumental records and atmospheric model results, the ice core data depict rather coherent and homogenous patterns in East Antarctica during the last two interglacials. Across the East Antarctic plateau, regional differences, with respect to the common East Antarctic signal, appear to have similar patterns during the current and last interglacials. We identify two abrupt shifts in isotopic records during the glacial inception at TALDICE and EDML, likely caused by regional sea ice expansion. These regional differences are discussed in terms of moisture origin and in terms of past changes in local elevation histories, which are compared to ice sheet model results. Our results suggest that elevation changes may contribute significantly to inter-site differences. These elevation changes may be underestimated by current ice sheet models. Article in Journal/Newspaper Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica EPICA ice core Ice Sheet Sea ice Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Antarctic Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) Dronning Maud Land East Antarctica Talos Dome ENVELOPE(158.000,158.000,-73.000,-73.000) Taylor Dome ENVELOPE(157.667,157.667,-77.667,-77.667) |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
Earth Science [SDU]Sciences of the Universe [physics] |
spellingShingle |
Earth Science [SDU]Sciences of the Universe [physics] Masson-Delmotte, V. Buiron, D. Ekaykin, A. Frezzotti, M. Gallée, H. Jouzel, J. Krinner, G. Landais, A. Motoyama, H. Oerter, H. Pol, K. Pollard, D. Ritz, C. Schlosser, E. Sime, L. C. Sodemann, H. Stenni, B. Uemura, R. Vimeux, F. A comparison of the present and last interglacial periods in six Antarctic ice cores |
topic_facet |
Earth Science [SDU]Sciences of the Universe [physics] |
description |
International audience We compare the present and last interglacial periods as recorded in Antarctic water stable isotope records now available at various temporal resolutions from six East Antarctic ice cores: Vostok, Taylor Dome, EPICA Dome C (EDC), EPICA Dronning Maud Land (EDML), Dome Fuji and the recent TALDICE ice core from Talos Dome. We first review the different modern site characteristics in terms of ice flow, meteorological conditions, precipitation intermittency and moisture origin, as depicted by meteorological data, atmospheric reanalyses and Lagrangian moisture source diagnostics. These different factors can indeed alter the relationships between temperature and water stable isotopes. Using five records with sufficient resolution on the EDC3 age scale, common features are quantified through principal component analyses. Consistent with instrumental records and atmospheric model results, the ice core data depict rather coherent and homogenous patterns in East Antarctica during the last two interglacials. Across the East Antarctic plateau, regional differences, with respect to the common East Antarctic signal, appear to have similar patterns during the current and last interglacials. We identify two abrupt shifts in isotopic records during the glacial inception at TALDICE and EDML, likely caused by regional sea ice expansion. These regional differences are discussed in terms of moisture origin and in terms of past changes in local elevation histories, which are compared to ice sheet model results. Our results suggest that elevation changes may contribute significantly to inter-site differences. These elevation changes may be underestimated by current ice sheet models. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) 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-Saclay-Centre National de la Recherche Scientifique (CNRS) Hydrosciences Montpellier (HSM) Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Masson-Delmotte, V. Buiron, D. Ekaykin, A. Frezzotti, M. Gallée, H. Jouzel, J. Krinner, G. Landais, A. Motoyama, H. Oerter, H. Pol, K. Pollard, D. Ritz, C. Schlosser, E. Sime, L. C. Sodemann, H. Stenni, B. Uemura, R. Vimeux, F. |
author_facet |
Masson-Delmotte, V. Buiron, D. Ekaykin, A. Frezzotti, M. Gallée, H. Jouzel, J. Krinner, G. Landais, A. Motoyama, H. Oerter, H. Pol, K. Pollard, D. Ritz, C. Schlosser, E. Sime, L. C. Sodemann, H. Stenni, B. Uemura, R. Vimeux, F. |
author_sort |
Masson-Delmotte, V. |
title |
A comparison of the present and last interglacial periods in six Antarctic ice cores |
title_short |
A comparison of the present and last interglacial periods in six Antarctic ice cores |
title_full |
A comparison of the present and last interglacial periods in six Antarctic ice cores |
title_fullStr |
A comparison of the present and last interglacial periods in six Antarctic ice cores |
title_full_unstemmed |
A comparison of the present and last interglacial periods in six Antarctic ice cores |
title_sort |
comparison of the present and last interglacial periods in six antarctic ice cores |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.science/hal-04113910 https://doi.org/10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) ENVELOPE(158.000,158.000,-73.000,-73.000) ENVELOPE(157.667,157.667,-77.667,-77.667) |
geographic |
Antarctic Dome Fuji Dronning Maud Land East Antarctica Talos Dome Taylor Dome |
geographic_facet |
Antarctic Dome Fuji Dronning Maud Land East Antarctica Talos Dome Taylor Dome |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica EPICA ice core Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land East Antarctica EPICA ice core Ice Sheet Sea ice |
op_source |
Climate of the Past https://hal.science/hal-04113910 Climate of the Past, 2011, 7, pp.397-423. ⟨10.5194/cp-7-397-201110.5194/cpd-6-2267-2010⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 hal-04113910 https://hal.science/hal-04113910 BIBCODE: 2011CliPa.7.397M doi:10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 |
op_doi |
https://doi.org/10.5194/cp-7-397-201110.5194/cpd-6-2267-2010 |
_version_ |
1769003199463686144 |