Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability
International audience In this study, we present a unique high-resolution Holocene record of oceanographic and climatic change based on analyses of diatom assemblages combined with biomarker data from a sediment core collected from the Vega Drift, eastern Antarctic Peninsula (EAP). These data add to...
Published in: | Paleoceanography |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Subjects: | |
Online Access: | https://doi.org/10.1002/2015PA002785 https://hal.sorbonne-universite.fr/hal-01266709/file/palo20285.pdf https://hal.sorbonne-universite.fr/hal-01266709 |
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openpolar |
institution |
Open Polar |
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Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
geo envir |
spellingShingle |
geo envir Barbara, Loïc Crosta, Xavier Leventer, Amy Schmidt, Sabine Etourneau, Johan Domack, Eugene Massé, Guillaume Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability |
topic_facet |
geo envir |
description |
International audience In this study, we present a unique high-resolution Holocene record of oceanographic and climatic change based on analyses of diatom assemblages combined with biomarker data from a sediment core collected from the Vega Drift, eastern Antarctic Peninsula (EAP). These data add to the climate framework already established by high-resolution marine sedimentary records from the Palmer Deep, western Antarctic Peninsula (WAP). Heavy sea ice conditions and reduced primary productivity were observed prior to 7.4 ka B.P. in relation with the proximity of the glacial ice melt and calving. Subsequent Holocene oceanographic conditions were controlled by the interactions between the Westerlies-Antarctic Circumpolar Current (ACC)-Weddell Gyre dynamics. A warm period characterized by short seasonal sea ice duration associated with a southern shift of both ACC and Westerlies field persisted until 5 ka B.P. This warm episode was then followed by climate deterioration during the middle-to-late Holocene (5 to 1.9 ka B.P.) with a gradual increase in annual sea ice duration triggered by the expansion of the Weddell Gyre and a strong oceanic connection from the EAP to the WAP. Increase of benthic diatom species during this period was indicative of more summer/autumn storms, which was consistent with changes in synoptic atmospheric circulation and the establishment of low- to high-latitude teleconnections. Finally, the multicentennial scale variability of the Weddell Gyre intensity and storm frequency during the late Holocene appeared to be associated with the increased El Niño–Southern Oscillation frequency. |
author2 |
Universidad Nacional Autónoma de México (UNAM) UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-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) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) 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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) 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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Colgate University College of Marine Science St Petersburg, FL University of South Florida Tampa (USF) Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Barbara, Loïc Crosta, Xavier Leventer, Amy Schmidt, Sabine Etourneau, Johan Domack, Eugene Massé, Guillaume |
author_facet |
Barbara, Loïc Crosta, Xavier Leventer, Amy Schmidt, Sabine Etourneau, Johan Domack, Eugene Massé, Guillaume |
author_sort |
Barbara, Loïc |
title |
Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability |
title_short |
Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability |
title_full |
Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability |
title_fullStr |
Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability |
title_full_unstemmed |
Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability |
title_sort |
environmental responses of the northeast antarctic peninsula to the holocene climate variability |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://doi.org/10.1002/2015PA002785 https://hal.sorbonne-universite.fr/hal-01266709/file/palo20285.pdf https://hal.sorbonne-universite.fr/hal-01266709 |
long_lat |
ENVELOPE(-64.400,-64.400,-64.950,-64.950) |
geographic |
Antarctic Antarctic Peninsula Palmer Deep Weddell |
geographic_facet |
Antarctic Antarctic Peninsula Palmer Deep Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0883-8305 Paleoceanography Paleoceanography, American Geophysical Union, 2016, 31 (1), pp.131-147. ⟨10.1002/2015PA002785⟩ |
op_relation |
hal-01266709 doi:10.1002/2015PA002785 10670/1.ls5680 https://hal.sorbonne-universite.fr/hal-01266709/file/palo20285.pdf https://hal.sorbonne-universite.fr/hal-01266709 |
op_rights |
other |
op_doi |
https://doi.org/10.1002/2015PA002785 |
container_title |
Paleoceanography |
container_volume |
31 |
container_issue |
1 |
container_start_page |
131 |
op_container_end_page |
147 |
_version_ |
1766269114998849536 |
spelling |
fttriple:oai:gotriple.eu:10670/1.ls5680 2023-05-15T14:00:07+02:00 Environmental responses of the Northeast Antarctic Peninsula to the Holocene climate variability Barbara, Loïc Crosta, Xavier Leventer, Amy Schmidt, Sabine Etourneau, Johan Domack, Eugene Massé, Guillaume Universidad Nacional Autónoma de México (UNAM) UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-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) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) 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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris) 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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Colgate University College of Marine Science St Petersburg, FL University of South Florida Tampa (USF) Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) 2016-01-01 https://doi.org/10.1002/2015PA002785 https://hal.sorbonne-universite.fr/hal-01266709/file/palo20285.pdf https://hal.sorbonne-universite.fr/hal-01266709 en eng HAL CCSD American Geophysical Union hal-01266709 doi:10.1002/2015PA002785 10670/1.ls5680 https://hal.sorbonne-universite.fr/hal-01266709/file/palo20285.pdf https://hal.sorbonne-universite.fr/hal-01266709 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0883-8305 Paleoceanography Paleoceanography, American Geophysical Union, 2016, 31 (1), pp.131-147. ⟨10.1002/2015PA002785⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2016 fttriple https://doi.org/10.1002/2015PA002785 2023-01-22T18:38:21Z International audience In this study, we present a unique high-resolution Holocene record of oceanographic and climatic change based on analyses of diatom assemblages combined with biomarker data from a sediment core collected from the Vega Drift, eastern Antarctic Peninsula (EAP). These data add to the climate framework already established by high-resolution marine sedimentary records from the Palmer Deep, western Antarctic Peninsula (WAP). Heavy sea ice conditions and reduced primary productivity were observed prior to 7.4 ka B.P. in relation with the proximity of the glacial ice melt and calving. Subsequent Holocene oceanographic conditions were controlled by the interactions between the Westerlies-Antarctic Circumpolar Current (ACC)-Weddell Gyre dynamics. A warm period characterized by short seasonal sea ice duration associated with a southern shift of both ACC and Westerlies field persisted until 5 ka B.P. This warm episode was then followed by climate deterioration during the middle-to-late Holocene (5 to 1.9 ka B.P.) with a gradual increase in annual sea ice duration triggered by the expansion of the Weddell Gyre and a strong oceanic connection from the EAP to the WAP. Increase of benthic diatom species during this period was indicative of more summer/autumn storms, which was consistent with changes in synoptic atmospheric circulation and the establishment of low- to high-latitude teleconnections. Finally, the multicentennial scale variability of the Weddell Gyre intensity and storm frequency during the late Holocene appeared to be associated with the increased El Niño–Southern Oscillation frequency. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Unknown Antarctic Antarctic Peninsula Palmer Deep ENVELOPE(-64.400,-64.400,-64.950,-64.950) Weddell Paleoceanography 31 1 131 147 |