Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum

International audience A continuous deuterium excess profile (d = δD − 8δ18O) was obtained from the Dome C ice core spanning ∼ 32,000 yr. It exhibits significant variations over this period. In particular, d was 4.5‰ lower around 18,000 yr BP than over the past 7,500 yr, interpreted as reflecting hi...

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Published in:Nature
Main Authors: Jouzel, Jean, Merlivat, Liliane, Lorius, Claude
Other Authors: Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 1982
Subjects:
Online Access:https://hal.science/hal-03482836
https://doi.org/10.1038/299688a0
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spelling ftunivsavoie:oai:HAL:hal-03482836v1 2024-04-28T07:58:25+00:00 Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum Jouzel, Jean Merlivat, Liliane Lorius, Claude Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 1982-10 https://hal.science/hal-03482836 https://doi.org/10.1038/299688a0 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/299688a0 hal-03482836 https://hal.science/hal-03482836 doi:10.1038/299688a0 WOS: A1982PL84900029 ISSN: 0028-0836 EISSN: 1476-4687 Nature https://hal.science/hal-03482836 Nature, 1982, 299 (5885), pp.688-691. ⟨10.1038/299688a0⟩ [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 1982 ftunivsavoie https://doi.org/10.1038/299688a0 2024-04-11T00:37:57Z International audience A continuous deuterium excess profile (d = δD − 8δ18O) was obtained from the Dome C ice core spanning ∼ 32,000 yr. It exhibits significant variations over this period. In particular, d was 4.5‰ lower around 18,000 yr BP than over the past 7,500 yr, interpreted as reflecting higher relative humidity (estimated ∼90%) over the oceanic areas providing moisture for Antarctic precipitation. Article in Journal/Newspaper Antarc* Antarctic ice core Université Savoie Mont Blanc: HAL Nature 299 5885 688 691
institution Open Polar
collection Université Savoie Mont Blanc: HAL
op_collection_id ftunivsavoie
language English
topic [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
spellingShingle [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Jouzel, Jean
Merlivat, Liliane
Lorius, Claude
Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
topic_facet [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
description International audience A continuous deuterium excess profile (d = δD − 8δ18O) was obtained from the Dome C ice core spanning ∼ 32,000 yr. It exhibits significant variations over this period. In particular, d was 4.5‰ lower around 18,000 yr BP than over the past 7,500 yr, interpreted as reflecting higher relative humidity (estimated ∼90%) over the oceanic areas providing moisture for Antarctic precipitation.
author2 Laboratoire de glaciologie et géophysique de l'environnement (LGGE)
Observatoire des Sciences de l'Univers de Grenoble (OSUG)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
format Article in Journal/Newspaper
author Jouzel, Jean
Merlivat, Liliane
Lorius, Claude
author_facet Jouzel, Jean
Merlivat, Liliane
Lorius, Claude
author_sort Jouzel, Jean
title Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
title_short Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
title_full Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
title_fullStr Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
title_full_unstemmed Deuterium excess in an East Antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
title_sort deuterium excess in an east antarctic ice core suggests higher relative humidity at the oceanic surface during the last glacial maximum
publisher HAL CCSD
publishDate 1982
url https://hal.science/hal-03482836
https://doi.org/10.1038/299688a0
genre Antarc*
Antarctic
ice core
genre_facet Antarc*
Antarctic
ice core
op_source ISSN: 0028-0836
EISSN: 1476-4687
Nature
https://hal.science/hal-03482836
Nature, 1982, 299 (5885), pp.688-691. ⟨10.1038/299688a0⟩
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hal-03482836
https://hal.science/hal-03482836
doi:10.1038/299688a0
WOS: A1982PL84900029
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container_title Nature
container_volume 299
container_issue 5885
container_start_page 688
op_container_end_page 691
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