Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice
International audience We use isotopic data (deuterium and oxygen‐18) of the recently recovered deepest Vostok ice core section (down to 3650 m depth) to study processes leading to the formation of lake ice and the hydrological regime of subglacial Lake Vostok. The significant variability of the lak...
Published in: | Journal of Geophysical Research |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2010
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Subjects: | |
Online Access: | https://insu.hal.science/insu-00653223 https://insu.hal.science/insu-00653223/document https://insu.hal.science/insu-00653223/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20Ekaykin%20-%20Insights%20into%20hydrological%20regime%20of%20Lake%20Vostok%20from.pdf https://doi.org/10.1029/2009JC005329 |
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ftceafr:oai:HAL:insu-00653223v1 |
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openpolar |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
Antarctica Lake Vostok isotope content [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
Antarctica Lake Vostok isotope content [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Ekaykin, A. A. Lipenkov, V. Y. Petit, J.R. Johnsen, S. Jouzel, Jean Masson-Delmotte, Valérie Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
topic_facet |
Antarctica Lake Vostok isotope content [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience We use isotopic data (deuterium and oxygen‐18) of the recently recovered deepest Vostok ice core section (down to 3650 m depth) to study processes leading to the formation of lake ice and the hydrological regime of subglacial Lake Vostok. The significant variability of the lake ice isotopic content implies fluctuations in physical conditions of ice formation (mainly, volume and/or growth rate of frazil ice crystals) as well as variations of the isotope composition of the freezing water. The latter implies a poor mixing of the source waters (glacier melt and hydrothermal water) with the water of the main lake body. Poor mixing within the lake may have important consequences for the lake's chemical and gas balance and, particularly, for its microbiological content. A poorly mixed lake may provide ecological niches where microbial life can hide from high oxygen concentrations likely typical for the lake. We also show that the isotopic content of the main lake's input (meltwater) significantly differs from that of the output (lake ice), which can be explained by the contribution of an additional (hydrothermal) source. This latter conclusion is supported by the observed noncovariant behavior of deuterium and oxygen‐18 isotopes in the lake ice. |
author2 |
Arctic and Antarctic Research Institute (AARI) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) CLIPS 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)-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) Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) 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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)) RFBR grant 05-05-65248 Project 2 of the Subprogram "Antarctica" |
format |
Article in Journal/Newspaper |
author |
Ekaykin, A. A. Lipenkov, V. Y. Petit, J.R. Johnsen, S. Jouzel, Jean Masson-Delmotte, Valérie |
author_facet |
Ekaykin, A. A. Lipenkov, V. Y. Petit, J.R. Johnsen, S. Jouzel, Jean Masson-Delmotte, Valérie |
author_sort |
Ekaykin, A. A. |
title |
Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
title_short |
Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
title_full |
Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
title_fullStr |
Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
title_full_unstemmed |
Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
title_sort |
insights into hydrological regime of lake vostok from differential behavior of deuterium and oxygen‐18 in accreted ice |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://insu.hal.science/insu-00653223 https://insu.hal.science/insu-00653223/document https://insu.hal.science/insu-00653223/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20Ekaykin%20-%20Insights%20into%20hydrological%20regime%20of%20Lake%20Vostok%20from.pdf https://doi.org/10.1029/2009JC005329 |
genre |
Antarc* Antarctica ice core |
genre_facet |
Antarc* Antarctica ice core |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://insu.hal.science/insu-00653223 Journal of Geophysical Research. Oceans, 2010, 115, pp.C05003. ⟨10.1029/2009JC005329⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2009JC005329 insu-00653223 https://insu.hal.science/insu-00653223 https://insu.hal.science/insu-00653223/document https://insu.hal.science/insu-00653223/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20Ekaykin%20-%20Insights%20into%20hydrological%20regime%20of%20Lake%20Vostok%20from.pdf doi:10.1029/2009JC005329 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2009JC005329 |
container_title |
Journal of Geophysical Research |
container_volume |
115 |
container_issue |
C5 |
_version_ |
1810493705376759808 |
spelling |
ftceafr:oai:HAL:insu-00653223v1 2024-09-15T17:45:48+00:00 Insights into hydrological regime of Lake Vostok from differential behavior of deuterium and oxygen‐18 in accreted ice Ekaykin, A. A. Lipenkov, V. Y. Petit, J.R. Johnsen, S. Jouzel, Jean Masson-Delmotte, Valérie Arctic and Antarctic Research Institute (AARI) Russian Federal Service for Hydrometeorology and Environmental Monitoring (Roshydromet) CLIPS 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)-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) Niels Bohr Institute Copenhagen (NBI) Faculty of Science Copenhagen University of Copenhagen = Københavns Universitet (UCPH)-University of Copenhagen = Københavns Universitet (UCPH) 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) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) 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)) RFBR grant 05-05-65248 Project 2 of the Subprogram "Antarctica" 2010-05 https://insu.hal.science/insu-00653223 https://insu.hal.science/insu-00653223/document https://insu.hal.science/insu-00653223/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20Ekaykin%20-%20Insights%20into%20hydrological%20regime%20of%20Lake%20Vostok%20from.pdf https://doi.org/10.1029/2009JC005329 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2009JC005329 insu-00653223 https://insu.hal.science/insu-00653223 https://insu.hal.science/insu-00653223/document https://insu.hal.science/insu-00653223/file/Journal%20of%20Geophysical%20Research%20Oceans%20-%202010%20-%20Ekaykin%20-%20Insights%20into%20hydrological%20regime%20of%20Lake%20Vostok%20from.pdf doi:10.1029/2009JC005329 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://insu.hal.science/insu-00653223 Journal of Geophysical Research. Oceans, 2010, 115, pp.C05003. ⟨10.1029/2009JC005329⟩ Antarctica Lake Vostok isotope content [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2010 ftceafr https://doi.org/10.1029/2009JC005329 2024-07-22T13:13:08Z International audience We use isotopic data (deuterium and oxygen‐18) of the recently recovered deepest Vostok ice core section (down to 3650 m depth) to study processes leading to the formation of lake ice and the hydrological regime of subglacial Lake Vostok. The significant variability of the lake ice isotopic content implies fluctuations in physical conditions of ice formation (mainly, volume and/or growth rate of frazil ice crystals) as well as variations of the isotope composition of the freezing water. The latter implies a poor mixing of the source waters (glacier melt and hydrothermal water) with the water of the main lake body. Poor mixing within the lake may have important consequences for the lake's chemical and gas balance and, particularly, for its microbiological content. A poorly mixed lake may provide ecological niches where microbial life can hide from high oxygen concentrations likely typical for the lake. We also show that the isotopic content of the main lake's input (meltwater) significantly differs from that of the output (lake ice), which can be explained by the contribution of an additional (hydrothermal) source. This latter conclusion is supported by the observed noncovariant behavior of deuterium and oxygen‐18 isotopes in the lake ice. Article in Journal/Newspaper Antarc* Antarctica ice core HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Journal of Geophysical Research 115 C5 |