Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core
Whereas millennial to sub-millennial climate variability has been identified during the current interglacial period, past interglacial variability features remain poorly explored because of lacking data at sufficient temporal resolutions. Here, we present new deuterium data from the EPICA Dome C ice...
Published in: | Geophysical Research Letters |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/507188/ https://nora.nerc.ac.uk/id/eprint/507188/1/grl51679.pdf https://doi.org/10.1002/2014GL059561 |
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ftnerc:oai:nora.nerc.ac.uk:507188 2023-05-15T13:48:08+02:00 Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core Pol, K. Masson-Delmotte, V. Cattani, O. Debret, M. Falourd, S. Jouzel, J. Landais, A. Minster, B. Mudelsee, M. Schulz, M. Stenni, B. 2014-06-16 text http://nora.nerc.ac.uk/id/eprint/507188/ https://nora.nerc.ac.uk/id/eprint/507188/1/grl51679.pdf https://doi.org/10.1002/2014GL059561 en eng Wiley https://nora.nerc.ac.uk/id/eprint/507188/1/grl51679.pdf Pol, K.; Masson-Delmotte, V.; Cattani, O.; Debret, M.; Falourd, S.; Jouzel, J.; Landais, A.; Minster, B.; Mudelsee, M.; Schulz, M.; Stenni, B. 2014 Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core. Geophysical Research Letters, 41 (11). 4004-4012. https://doi.org/10.1002/2014GL059561 <https://doi.org/10.1002/2014GL059561> cc_by_nc_nd CC-BY-NC-ND Publication - Article PeerReviewed 2014 ftnerc https://doi.org/10.1002/2014GL059561 2023-02-04T19:39:38Z Whereas millennial to sub-millennial climate variability has been identified during the current interglacial period, past interglacial variability features remain poorly explored because of lacking data at sufficient temporal resolutions. Here, we present new deuterium data from the EPICA Dome C ice core, documenting at decadal resolution temperature changes occurring over the East Antarctic plateau during the warmer-than-today last interglacial. Expanding previous evidence of instabilities during the last interglacial, multi-centennial sub-events are identified and labelled for the first time in a past interglacial context. A variance analysis further reveals two major climatic features. First, an increase in variability is detected prior to the glacial inception, as already observed at the end of Marine Isotopic Stage 11 in the same core. Second, the overall variance level is systematically higher during the last interglacial than during the current one, suggesting that a warmer East Antarctic climate may also be more variable. Article in Journal/Newspaper Antarc* Antarctic EPICA ice core Natural Environment Research Council: NERC Open Research Archive Antarctic Geophysical Research Letters 41 11 4004 4012 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Whereas millennial to sub-millennial climate variability has been identified during the current interglacial period, past interglacial variability features remain poorly explored because of lacking data at sufficient temporal resolutions. Here, we present new deuterium data from the EPICA Dome C ice core, documenting at decadal resolution temperature changes occurring over the East Antarctic plateau during the warmer-than-today last interglacial. Expanding previous evidence of instabilities during the last interglacial, multi-centennial sub-events are identified and labelled for the first time in a past interglacial context. A variance analysis further reveals two major climatic features. First, an increase in variability is detected prior to the glacial inception, as already observed at the end of Marine Isotopic Stage 11 in the same core. Second, the overall variance level is systematically higher during the last interglacial than during the current one, suggesting that a warmer East Antarctic climate may also be more variable. |
format |
Article in Journal/Newspaper |
author |
Pol, K. Masson-Delmotte, V. Cattani, O. Debret, M. Falourd, S. Jouzel, J. Landais, A. Minster, B. Mudelsee, M. Schulz, M. Stenni, B. |
spellingShingle |
Pol, K. Masson-Delmotte, V. Cattani, O. Debret, M. Falourd, S. Jouzel, J. Landais, A. Minster, B. Mudelsee, M. Schulz, M. Stenni, B. Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
author_facet |
Pol, K. Masson-Delmotte, V. Cattani, O. Debret, M. Falourd, S. Jouzel, J. Landais, A. Minster, B. Mudelsee, M. Schulz, M. Stenni, B. |
author_sort |
Pol, K. |
title |
Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
title_short |
Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
title_full |
Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
title_fullStr |
Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
title_full_unstemmed |
Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
title_sort |
climate variability features of the last interglacial in the east antarctic epica dome c ice core |
publisher |
Wiley |
publishDate |
2014 |
url |
http://nora.nerc.ac.uk/id/eprint/507188/ https://nora.nerc.ac.uk/id/eprint/507188/1/grl51679.pdf https://doi.org/10.1002/2014GL059561 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic EPICA ice core |
genre_facet |
Antarc* Antarctic EPICA ice core |
op_relation |
https://nora.nerc.ac.uk/id/eprint/507188/1/grl51679.pdf Pol, K.; Masson-Delmotte, V.; Cattani, O.; Debret, M.; Falourd, S.; Jouzel, J.; Landais, A.; Minster, B.; Mudelsee, M.; Schulz, M.; Stenni, B. 2014 Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core. Geophysical Research Letters, 41 (11). 4004-4012. https://doi.org/10.1002/2014GL059561 <https://doi.org/10.1002/2014GL059561> |
op_rights |
cc_by_nc_nd |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1002/2014GL059561 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
11 |
container_start_page |
4004 |
op_container_end_page |
4012 |
_version_ |
1766248757876228096 |