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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ftunigrenoble:oai:HAL:hal-03482836v1 2024-05-12T07:56:36+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 ftunigrenoble https://doi.org/10.1038/299688a0 2024-04-18T03:11:24Z 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 Grenoble Alpes: HAL Antarctic Nature 299 5885 688 691 |
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Open Polar |
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Université Grenoble Alpes: HAL |
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ftunigrenoble |
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 |
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[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 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
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⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/299688a0 hal-03482836 https://hal.science/hal-03482836 doi:10.1038/299688a0 WOS: A1982PL84900029 |
op_doi |
https://doi.org/10.1038/299688a0 |
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Nature |
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299 |
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5885 |
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688 |
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691 |
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1798836753444896768 |