Ice-age variability from the Vostok deuterium and deuterium excess records
International audience The four climatic cycles obtained from the Vostok ice core offer a unique opportunity to study the high-frequency paleoclimatic variability, i.e., on time scales smaller than 15 kyr. We focused our study on the deuterium (5D) and deuterium excess (d) records, which are proxies...
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Online Access: | https://hal.science/hal-03106987 https://hal.science/hal-03106987/document https://hal.science/hal-03106987/file/2001JD900147.pdf https://doi.org/10.1029/2001JD900147 |
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ftinsu:oai:HAL:hal-03106987v1 2024-04-28T08:24:24+00:00 Ice-age variability from the Vostok deuterium and deuterium excess records Yiou, Pascal Vimeux, F. Jouzel, J. 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) Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) 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)) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 2001-12-16 https://hal.science/hal-03106987 https://hal.science/hal-03106987/document https://hal.science/hal-03106987/file/2001JD900147.pdf https://doi.org/10.1029/2001JD900147 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2001JD900147 hal-03106987 https://hal.science/hal-03106987 https://hal.science/hal-03106987/document https://hal.science/hal-03106987/file/2001JD900147.pdf doi:10.1029/2001JD900147 info:eu-repo/semantics/OpenAccess ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-03106987 Journal of Geophysical Research: Atmospheres, 2001, 106 (D23), pp.31875-31884. ⟨10.1029/2001JD900147⟩ [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 2001 ftinsu https://doi.org/10.1029/2001JD900147 2024-04-05T00:38:39Z International audience The four climatic cycles obtained from the Vostok ice core offer a unique opportunity to study the high-frequency paleoclimatic variability, i.e., on time scales smaller than 15 kyr. We focused our study on the deuterium (5D) and deuterium excess (d) records, which are proxies for local temperature and remote evaporation source temperature and hence give us access to spatial climatic variations. Spectral analyses of paleoclimatic records have shown that the last glacial period (110-15 kyr before present) is characterized by large and fast temperature oscillations. Examples of such variations in the Northern Hemisphere are the so-called Dansgaard-Oeschger oscillations and Heinrich events. At Vostok, these oscillations are also imprinted in the ice, with broadband periodicities between 5 and 8 kyr and between 1.4 and 1.8 kyr. Scenarios for this behavior have recently been developed and argued, as well as connections with the Northern Hemisphere. We now can investigate the stability of the fast spectral features in the previous ice ages recovered in the Vostok isotopic records. This allows us to document the different types of climatic behavior under glacial conditions and hence connect the fast variation statistics with the slower ones controlled by insolation and sea level change. Our results show that 5D and d do have a distinct spectral behavior. We discuss the implications on the ocean circulation from such a difference. Article in Journal/Newspaper ice core Institut national des sciences de l'Univers: HAL-INSU Journal of Geophysical Research: Atmospheres 106 D23 31875 31884 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Yiou, Pascal Vimeux, F. Jouzel, J. Ice-age variability from the Vostok deuterium and deuterium excess records |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience The four climatic cycles obtained from the Vostok ice core offer a unique opportunity to study the high-frequency paleoclimatic variability, i.e., on time scales smaller than 15 kyr. We focused our study on the deuterium (5D) and deuterium excess (d) records, which are proxies for local temperature and remote evaporation source temperature and hence give us access to spatial climatic variations. Spectral analyses of paleoclimatic records have shown that the last glacial period (110-15 kyr before present) is characterized by large and fast temperature oscillations. Examples of such variations in the Northern Hemisphere are the so-called Dansgaard-Oeschger oscillations and Heinrich events. At Vostok, these oscillations are also imprinted in the ice, with broadband periodicities between 5 and 8 kyr and between 1.4 and 1.8 kyr. Scenarios for this behavior have recently been developed and argued, as well as connections with the Northern Hemisphere. We now can investigate the stability of the fast spectral features in the previous ice ages recovered in the Vostok isotopic records. This allows us to document the different types of climatic behavior under glacial conditions and hence connect the fast variation statistics with the slower ones controlled by insolation and sea level change. Our results show that 5D and d do have a distinct spectral behavior. We discuss the implications on the ocean circulation from such a difference. |
author2 |
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) Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR) 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)) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) |
format |
Article in Journal/Newspaper |
author |
Yiou, Pascal Vimeux, F. Jouzel, J. |
author_facet |
Yiou, Pascal Vimeux, F. Jouzel, J. |
author_sort |
Yiou, Pascal |
title |
Ice-age variability from the Vostok deuterium and deuterium excess records |
title_short |
Ice-age variability from the Vostok deuterium and deuterium excess records |
title_full |
Ice-age variability from the Vostok deuterium and deuterium excess records |
title_fullStr |
Ice-age variability from the Vostok deuterium and deuterium excess records |
title_full_unstemmed |
Ice-age variability from the Vostok deuterium and deuterium excess records |
title_sort |
ice-age variability from the vostok deuterium and deuterium excess records |
publisher |
HAL CCSD |
publishDate |
2001 |
url |
https://hal.science/hal-03106987 https://hal.science/hal-03106987/document https://hal.science/hal-03106987/file/2001JD900147.pdf https://doi.org/10.1029/2001JD900147 |
genre |
ice core |
genre_facet |
ice core |
op_source |
ISSN: 2169-897X EISSN: 2169-8996 Journal of Geophysical Research: Atmospheres https://hal.science/hal-03106987 Journal of Geophysical Research: Atmospheres, 2001, 106 (D23), pp.31875-31884. ⟨10.1029/2001JD900147⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2001JD900147 hal-03106987 https://hal.science/hal-03106987 https://hal.science/hal-03106987/document https://hal.science/hal-03106987/file/2001JD900147.pdf doi:10.1029/2001JD900147 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2001JD900147 |
container_title |
Journal of Geophysical Research: Atmospheres |
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106 |
container_issue |
D23 |
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31875 |
op_container_end_page |
31884 |
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