Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core
Whereas millennial to submillennial 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 c...
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Online Access: | http://hdl.handle.net/11368/2798328 |
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ftunitriestiris:oai:arts.units.it:11368/2798328 2023-05-15T13:46:40+02:00 Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core K. Pol V. Masson Delmotte O. Cattani M. Debret S. Falourd J. Jouzel A. Landais B. Minster M. Mudelsee M. Schulz STENNI, BARBARA K., Pol V., Masson Delmotte O., Cattani M., Debret S., Falourd J., Jouzel A., Landai B., Minster M., Mudelsee M., Schulz Stenni, Barbara 2014 http://hdl.handle.net/11368/2798328 eng eng volume:41 firstpage:4004 lastpage:4012 numberofpages:9 journal:GEOPHYSICAL RESEARCH LETTERS http://hdl.handle.net/11368/2798328 10.1002/ 2014GL059561 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84901732101 Antarctica Ice core interglacial water stable isotope paleoclimate info:eu-repo/semantics/article 2014 ftunitriestiris 2023-04-09T06:11:58Z Whereas millennial to submillennial 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, multicentennial subevents are identified and labeled 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 Antarctica EPICA ice core Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) Antarctic |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
Antarctica Ice core interglacial water stable isotope paleoclimate |
spellingShingle |
Antarctica Ice core interglacial water stable isotope paleoclimate K. Pol V. Masson Delmotte O. Cattani M. Debret S. Falourd J. Jouzel A. Landais B. Minster M. Mudelsee M. Schulz STENNI, BARBARA Climate variability features of the last interglacial in the East Antarctic EPICA Dome C ice core |
topic_facet |
Antarctica Ice core interglacial water stable isotope paleoclimate |
description |
Whereas millennial to submillennial 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, multicentennial subevents are identified and labeled 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. |
author2 |
K., Pol V., Masson Delmotte O., Cattani M., Debret S., Falourd J., Jouzel A., Landai B., Minster M., Mudelsee M., Schulz Stenni, Barbara |
format |
Article in Journal/Newspaper |
author |
K. Pol V. Masson Delmotte O. Cattani M. Debret S. Falourd J. Jouzel A. Landais B. Minster M. Mudelsee M. Schulz STENNI, BARBARA |
author_facet |
K. Pol V. Masson Delmotte O. Cattani M. Debret S. Falourd J. Jouzel A. Landais B. Minster M. Mudelsee M. Schulz STENNI, BARBARA |
author_sort |
K. Pol |
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 |
publishDate |
2014 |
url |
http://hdl.handle.net/11368/2798328 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica EPICA ice core |
genre_facet |
Antarc* Antarctic Antarctica EPICA ice core |
op_relation |
volume:41 firstpage:4004 lastpage:4012 numberofpages:9 journal:GEOPHYSICAL RESEARCH LETTERS http://hdl.handle.net/11368/2798328 10.1002/ 2014GL059561 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84901732101 |
_version_ |
1766245046694182912 |