Holocene glacial discharge fluctuations and recent instability in East Antarctica
International audience Antarctica holds the largest ice sheet in the world, the East Antarctic Ice Sheet (EAIS), and plays a significant role in both local and global climate through the interactions between ice sheets, ocean, sea ice, and atmosphere. Our understanding of East Antarctica Holocene cl...
Published in: | Earth and Planetary Science Letters |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2014
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Online Access: | https://hal.science/hal-02105578 https://doi.org/10.1016/j.epsl.2014.03.009 |
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Muséum National d'Histoire Naturelle (MNHM): HAL |
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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 Crespin, Julien Yam, Ruth Crosta, Xavier Massé, Guillaume Schmidt, Sabine Campagne, Philippine Shemesh, Aldo Holocene glacial discharge fluctuations and recent instability in East Antarctica |
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 Antarctica holds the largest ice sheet in the world, the East Antarctic Ice Sheet (EAIS), and plays a significant role in both local and global climate through the interactions between ice sheets, ocean, sea ice, and atmosphere. Our understanding of East Antarctica Holocene climate variability relies mainly on ice cores that however do not document glacial discharge history. Here, we present the first high resolution δ 18 O diatom record derived from two marine sediment cores retrieved on the East Antarctic continental shelf to reconstruct glacial discharge off Adélie Land and George V Land (AL-GVL) over the last 11,000 years from decadal to centennial resolution. Our results suggest multi-centennial glacier advances and retreats until 2000 cal yr BP, followed by a period of relative instability marked by two major glacial retreats centered at ∼1700 cal yr BP and ∼1980 CE. We suggest that the multi-centennial oscillations during the Early/Mid-Holocene reflect glacier fluctuations in response to long-term local seasonal insolation and short-term solar variability. We also propose that δ 18 O diatom variability over the last 2000 years was the result of a recent change in the AL-GVL region to increasing atmospheric influence, linked to ENSO intensification and teleconnections strengthening between low and high latitudes. |
author2 |
Department of Earth and Planetary Sciences Rehovot Weizmann Institute of Science Rehovot, Israël Department of Environmental Sciences and Energy Research Rehovot 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) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Article in Journal/Newspaper |
author |
Crespin, Julien Yam, Ruth Crosta, Xavier Massé, Guillaume Schmidt, Sabine Campagne, Philippine Shemesh, Aldo |
author_facet |
Crespin, Julien Yam, Ruth Crosta, Xavier Massé, Guillaume Schmidt, Sabine Campagne, Philippine Shemesh, Aldo |
author_sort |
Crespin, Julien |
title |
Holocene glacial discharge fluctuations and recent instability in East Antarctica |
title_short |
Holocene glacial discharge fluctuations and recent instability in East Antarctica |
title_full |
Holocene glacial discharge fluctuations and recent instability in East Antarctica |
title_fullStr |
Holocene glacial discharge fluctuations and recent instability in East Antarctica |
title_full_unstemmed |
Holocene glacial discharge fluctuations and recent instability in East Antarctica |
title_sort |
holocene glacial discharge fluctuations and recent instability in east antarctica |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-02105578 https://doi.org/10.1016/j.epsl.2014.03.009 |
genre |
Antarc* Antarctic Antarctica East Antarctica George V Land Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica George V Land Ice Sheet Sea ice |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-02105578 Earth and Planetary Science Letters, 2014, 394, pp.38-47. ⟨10.1016/j.epsl.2014.03.009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2014.03.009 hal-02105578 https://hal.science/hal-02105578 doi:10.1016/j.epsl.2014.03.009 |
op_doi |
https://doi.org/10.1016/j.epsl.2014.03.009 |
container_title |
Earth and Planetary Science Letters |
container_volume |
394 |
container_start_page |
38 |
op_container_end_page |
47 |
_version_ |
1799469606665977856 |
spelling |
ftmuseumnhn:oai:HAL:hal-02105578v1 2024-05-19T07:31:44+00:00 Holocene glacial discharge fluctuations and recent instability in East Antarctica Crespin, Julien Yam, Ruth Crosta, Xavier Massé, Guillaume Schmidt, Sabine Campagne, Philippine Shemesh, Aldo Department of Earth and Planetary Sciences Rehovot Weizmann Institute of Science Rehovot, Israël Department of Environmental Sciences and Energy Research Rehovot 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) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) 2014-05 https://hal.science/hal-02105578 https://doi.org/10.1016/j.epsl.2014.03.009 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2014.03.009 hal-02105578 https://hal.science/hal-02105578 doi:10.1016/j.epsl.2014.03.009 ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-02105578 Earth and Planetary Science Letters, 2014, 394, pp.38-47. ⟨10.1016/j.epsl.2014.03.009⟩ [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 2014 ftmuseumnhn https://doi.org/10.1016/j.epsl.2014.03.009 2024-04-25T00:52:27Z International audience Antarctica holds the largest ice sheet in the world, the East Antarctic Ice Sheet (EAIS), and plays a significant role in both local and global climate through the interactions between ice sheets, ocean, sea ice, and atmosphere. Our understanding of East Antarctica Holocene climate variability relies mainly on ice cores that however do not document glacial discharge history. Here, we present the first high resolution δ 18 O diatom record derived from two marine sediment cores retrieved on the East Antarctic continental shelf to reconstruct glacial discharge off Adélie Land and George V Land (AL-GVL) over the last 11,000 years from decadal to centennial resolution. Our results suggest multi-centennial glacier advances and retreats until 2000 cal yr BP, followed by a period of relative instability marked by two major glacial retreats centered at ∼1700 cal yr BP and ∼1980 CE. We suggest that the multi-centennial oscillations during the Early/Mid-Holocene reflect glacier fluctuations in response to long-term local seasonal insolation and short-term solar variability. We also propose that δ 18 O diatom variability over the last 2000 years was the result of a recent change in the AL-GVL region to increasing atmospheric influence, linked to ENSO intensification and teleconnections strengthening between low and high latitudes. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica George V Land Ice Sheet Sea ice Muséum National d'Histoire Naturelle (MNHM): HAL Earth and Planetary Science Letters 394 38 47 |