Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core
The EPICA Dome C (EDC) ice core provides the longest continuous climatic record, covering the last 800 000 years (800 kyr). A unique opportunity to investigate decadal to millennial variability during past glacial and interglacial periods is provided by the high-resolution water isotopic record (d18...
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2022
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Online Access: | http://hdl.handle.net/10278/5006420 https://doi.org/10.5194/cp-18-2289-2022 |
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ftuniveneziairis:oai:iris.unive.it:10278/5006420 2024-04-21T08:01:34+00:00 Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core Antoine Grisart Mathieu Casado Vasileios Gkinis Bo Vinther Philippe Naveau Mathieu Vrac Thomas Laepple B??n??dicte Minster Frederic Pri?? Barbara Stenni Elise Fourr?? Hans Christian Steen-Larsen Jean Jouzel Martin Werner Katy Pol Val??rie Masson-Delmotte Maria Hoerhold Trevor Popp Amaelle Landais Grisart, Antoine Casado, Mathieu Gkinis, Vasileio Vinther, Bo Naveau, Philippe Vrac, Mathieu Laepple, Thoma Minster, B??n??dicte Pri??, Frederic Stenni, Barbara Fourr??, Elise Christian Steen-Larsen, Han Jouzel, Jean Werner, Martin Pol, Katy Masson-Delmotte, Val??rie Hoerhold, Maria Popp, Trevor Landais, Amaelle 2022 http://hdl.handle.net/10278/5006420 https://doi.org/10.5194/cp-18-2289-2022 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000868740200001 volume:18 issue:10 firstpage:2289 lastpage:2301 numberofpages:13 journal:CLIMATE OF THE PAST http://hdl.handle.net/10278/5006420 doi:10.5194/cp-18-2289-2022 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85142004355 info:eu-repo/semantics/openAccess Settore GEO/08 - Geochimica e Vulcanologia info:eu-repo/semantics/article 2022 ftuniveneziairis https://doi.org/10.5194/cp-18-2289-2022 2024-03-28T01:22:06Z The EPICA Dome C (EDC) ice core provides the longest continuous climatic record, covering the last 800 000 years (800 kyr). A unique opportunity to investigate decadal to millennial variability during past glacial and interglacial periods is provided by the high-resolution water isotopic record (d18O and dD) available for the EDC ice core. We present here a continuous compilation of the EDC water isotopic record at a sample resolution of 11 cm, which consists of 27 000 d18O measurements and 7920 dD measurements (covering, respectively, 94% and 27% of the whole EDC record), including published and new measurements (2900 for both d18O and dD) for the last 800 kyr. Here, we demonstrate that repeated water isotope measurements of the same EDC samples from different depth intervals obtained using different analytical methods are comparable within analytical uncertainty. We thus combine all available EDC water isotope measurements to generate a high-resolution (11 cm) dataset for the past 800 kyr. A frequency decomposition of the most complete d18O record and a simple assessment of the possible influence of diffusion on the measured profile shows that the variability at the multidecadal to multi-centennial timescale is higher during glacial than during interglacial periods and higher during early interglacial isotopic maxima than during the Holocene. This analysis shows as well that during interglacial periods characterized by a temperature optimum at the beginning, the multicentennial variability is strongest over this temperature optimum. Article in Journal/Newspaper EPICA ice core Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Climate of the Past 18 10 2289 2301 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
topic |
Settore GEO/08 - Geochimica e Vulcanologia |
spellingShingle |
Settore GEO/08 - Geochimica e Vulcanologia Antoine Grisart Mathieu Casado Vasileios Gkinis Bo Vinther Philippe Naveau Mathieu Vrac Thomas Laepple B??n??dicte Minster Frederic Pri?? Barbara Stenni Elise Fourr?? Hans Christian Steen-Larsen Jean Jouzel Martin Werner Katy Pol Val??rie Masson-Delmotte Maria Hoerhold Trevor Popp Amaelle Landais Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core |
topic_facet |
Settore GEO/08 - Geochimica e Vulcanologia |
description |
The EPICA Dome C (EDC) ice core provides the longest continuous climatic record, covering the last 800 000 years (800 kyr). A unique opportunity to investigate decadal to millennial variability during past glacial and interglacial periods is provided by the high-resolution water isotopic record (d18O and dD) available for the EDC ice core. We present here a continuous compilation of the EDC water isotopic record at a sample resolution of 11 cm, which consists of 27 000 d18O measurements and 7920 dD measurements (covering, respectively, 94% and 27% of the whole EDC record), including published and new measurements (2900 for both d18O and dD) for the last 800 kyr. Here, we demonstrate that repeated water isotope measurements of the same EDC samples from different depth intervals obtained using different analytical methods are comparable within analytical uncertainty. We thus combine all available EDC water isotope measurements to generate a high-resolution (11 cm) dataset for the past 800 kyr. A frequency decomposition of the most complete d18O record and a simple assessment of the possible influence of diffusion on the measured profile shows that the variability at the multidecadal to multi-centennial timescale is higher during glacial than during interglacial periods and higher during early interglacial isotopic maxima than during the Holocene. This analysis shows as well that during interglacial periods characterized by a temperature optimum at the beginning, the multicentennial variability is strongest over this temperature optimum. |
author2 |
Grisart, Antoine Casado, Mathieu Gkinis, Vasileio Vinther, Bo Naveau, Philippe Vrac, Mathieu Laepple, Thoma Minster, B??n??dicte Pri??, Frederic Stenni, Barbara Fourr??, Elise Christian Steen-Larsen, Han Jouzel, Jean Werner, Martin Pol, Katy Masson-Delmotte, Val??rie Hoerhold, Maria Popp, Trevor Landais, Amaelle |
format |
Article in Journal/Newspaper |
author |
Antoine Grisart Mathieu Casado Vasileios Gkinis Bo Vinther Philippe Naveau Mathieu Vrac Thomas Laepple B??n??dicte Minster Frederic Pri?? Barbara Stenni Elise Fourr?? Hans Christian Steen-Larsen Jean Jouzel Martin Werner Katy Pol Val??rie Masson-Delmotte Maria Hoerhold Trevor Popp Amaelle Landais |
author_facet |
Antoine Grisart Mathieu Casado Vasileios Gkinis Bo Vinther Philippe Naveau Mathieu Vrac Thomas Laepple B??n??dicte Minster Frederic Pri?? Barbara Stenni Elise Fourr?? Hans Christian Steen-Larsen Jean Jouzel Martin Werner Katy Pol Val??rie Masson-Delmotte Maria Hoerhold Trevor Popp Amaelle Landais |
author_sort |
Antoine Grisart |
title |
Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core |
title_short |
Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core |
title_full |
Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core |
title_fullStr |
Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core |
title_full_unstemmed |
Sub-millennial climate variability from high-resolution water isotopes in the EPICA Dome C ice core |
title_sort |
sub-millennial climate variability from high-resolution water isotopes in the epica dome c ice core |
publishDate |
2022 |
url |
http://hdl.handle.net/10278/5006420 https://doi.org/10.5194/cp-18-2289-2022 |
genre |
EPICA ice core |
genre_facet |
EPICA ice core |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000868740200001 volume:18 issue:10 firstpage:2289 lastpage:2301 numberofpages:13 journal:CLIMATE OF THE PAST http://hdl.handle.net/10278/5006420 doi:10.5194/cp-18-2289-2022 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85142004355 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-18-2289-2022 |
container_title |
Climate of the Past |
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18 |
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10 |
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2289 |
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