Holocene subsurface temperature variability in the eastern Antarctic continental margin
International audience We reconstructed subsurface ($45-200 m water depth) temperature variability in the eastern Antarctic continental margin during the late Holocene, using an archaeal lipid-based temperature proxy (TEX 86 L). Our results reveal that subsurface temperature changes were probably po...
Published in: | Geophysical Research Letters |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-02105645 https://hal.science/hal-02105645/document https://hal.science/hal-02105645/file/Kim_GRL2012.pdf https://doi.org/10.1029/2012GL051157 |
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ftecolephe:oai:HAL:hal-02105645v1 2024-05-19T07:29:24+00:00 Holocene subsurface temperature variability in the eastern Antarctic continental margin Kim, Jung-Hyun Crosta, Xavier Willmott, Verónica Renssen, Hans Bonnin, Jérôme Helmke, Peer Schouten, Stefan Sinninghe Damsté, Jaap, S Royal Netherlands Institute for Sea Research (NIOZ) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Vrije Universiteit Amsterdam Amsterdam (VU) Edith Cowan University Department of Marine Biogeochemistry and Toxicology 2012 https://hal.science/hal-02105645 https://hal.science/hal-02105645/document https://hal.science/hal-02105645/file/Kim_GRL2012.pdf https://doi.org/10.1029/2012GL051157 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2012GL051157 hal-02105645 https://hal.science/hal-02105645 https://hal.science/hal-02105645/document https://hal.science/hal-02105645/file/Kim_GRL2012.pdf doi:10.1029/2012GL051157 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02105645 Geophysical Research Letters, 2012, 39 (6), pp.L06705. ⟨10.1029/2012GL051157⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2012 ftecolephe https://doi.org/10.1029/2012GL051157 2024-04-25T01:48:18Z International audience We reconstructed subsurface ($45-200 m water depth) temperature variability in the eastern Antarctic continental margin during the late Holocene, using an archaeal lipid-based temperature proxy (TEX 86 L). Our results reveal that subsurface temperature changes were probably positively coupled to the variability of warmer, nutrient-rich Modified Circumpolar Deep Water (MCDW, deep water of the Antarctic circumpolar current) intrusion onto the continental shelf. The TEX 86 L record, in combination with previously published climatic records, indicates that this coupling was probably related to the thermohaline circulation, seasonal variability in sea ice extent, sea temperature, and wind associated with high frequency climate dynamics at low-latitudes such as internal El Niño Southern Oscillation (ENSO). This in turn suggests a linkage between centennial ENSO-like variability at low-latitudes and intrusion variability of MCDW into the eastern Antarctic continental shelf, which might have further impact on ice sheet evolution. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Sea ice EPHE (Ecole pratique des hautes études, Paris): HAL Geophysical Research Letters 39 6 n/a n/a |
institution |
Open Polar |
collection |
EPHE (Ecole pratique des hautes études, Paris): HAL |
op_collection_id |
ftecolephe |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Kim, Jung-Hyun Crosta, Xavier Willmott, Verónica Renssen, Hans Bonnin, Jérôme Helmke, Peer Schouten, Stefan Sinninghe Damsté, Jaap, S Holocene subsurface temperature variability in the eastern Antarctic continental margin |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience We reconstructed subsurface ($45-200 m water depth) temperature variability in the eastern Antarctic continental margin during the late Holocene, using an archaeal lipid-based temperature proxy (TEX 86 L). Our results reveal that subsurface temperature changes were probably positively coupled to the variability of warmer, nutrient-rich Modified Circumpolar Deep Water (MCDW, deep water of the Antarctic circumpolar current) intrusion onto the continental shelf. The TEX 86 L record, in combination with previously published climatic records, indicates that this coupling was probably related to the thermohaline circulation, seasonal variability in sea ice extent, sea temperature, and wind associated with high frequency climate dynamics at low-latitudes such as internal El Niño Southern Oscillation (ENSO). This in turn suggests a linkage between centennial ENSO-like variability at low-latitudes and intrusion variability of MCDW into the eastern Antarctic continental shelf, which might have further impact on ice sheet evolution. |
author2 |
Royal Netherlands Institute for Sea Research (NIOZ) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Vrije Universiteit Amsterdam Amsterdam (VU) Edith Cowan University Department of Marine Biogeochemistry and Toxicology |
format |
Article in Journal/Newspaper |
author |
Kim, Jung-Hyun Crosta, Xavier Willmott, Verónica Renssen, Hans Bonnin, Jérôme Helmke, Peer Schouten, Stefan Sinninghe Damsté, Jaap, S |
author_facet |
Kim, Jung-Hyun Crosta, Xavier Willmott, Verónica Renssen, Hans Bonnin, Jérôme Helmke, Peer Schouten, Stefan Sinninghe Damsté, Jaap, S |
author_sort |
Kim, Jung-Hyun |
title |
Holocene subsurface temperature variability in the eastern Antarctic continental margin |
title_short |
Holocene subsurface temperature variability in the eastern Antarctic continental margin |
title_full |
Holocene subsurface temperature variability in the eastern Antarctic continental margin |
title_fullStr |
Holocene subsurface temperature variability in the eastern Antarctic continental margin |
title_full_unstemmed |
Holocene subsurface temperature variability in the eastern Antarctic continental margin |
title_sort |
holocene subsurface temperature variability in the eastern antarctic continental margin |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-02105645 https://hal.science/hal-02105645/document https://hal.science/hal-02105645/file/Kim_GRL2012.pdf https://doi.org/10.1029/2012GL051157 |
genre |
Antarc* Antarctic Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Ice Sheet Sea ice |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-02105645 Geophysical Research Letters, 2012, 39 (6), pp.L06705. ⟨10.1029/2012GL051157⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2012GL051157 hal-02105645 https://hal.science/hal-02105645 https://hal.science/hal-02105645/document https://hal.science/hal-02105645/file/Kim_GRL2012.pdf doi:10.1029/2012GL051157 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2012GL051157 |
container_title |
Geophysical Research Letters |
container_volume |
39 |
container_issue |
6 |
container_start_page |
n/a |
op_container_end_page |
n/a |
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1799479032512774144 |