Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction
International audience Holocene climate variability in the southeast Atlantic sector of the Southern Ocean and Antarctic is assessed and quantified through integration of available marine sediment core and Antarctic ice core data. We use summer sea surface temperature (SSST) and sea ice presence (SI...
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ftunivnantes:oai:HAL:hal-02105657v1 2023-05-15T13:40:19+02:00 Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction Divine, D. V. Koç, N. Isaksson, E. Nielsen, S. Crosta, X. Godtliebsen, F. Norwegian Polar Institute University of Tromsø (UiT) 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) 2010 https://hal.science/hal-02105657 https://doi.org/10.1016/j.quascirev.2009.11.012 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2009.11.012 hal-02105657 https://hal.science/hal-02105657 doi:10.1016/j.quascirev.2009.11.012 ISSN: 0277-3791 Quaternary Science Reviews https://hal.science/hal-02105657 Quaternary Science Reviews, 2010, 29, pp.303-312. ⟨10.1016/j.quascirev.2009.11.012⟩ [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 2010 ftunivnantes https://doi.org/10.1016/j.quascirev.2009.11.012 2023-02-08T07:43:57Z International audience Holocene climate variability in the southeast Atlantic sector of the Southern Ocean and Antarctic is assessed and quantified through integration of available marine sediment core and Antarctic ice core data. We use summer sea surface temperature (SSST) and sea ice presence (SIP) reconstructions from two marine sediment cores recovered north (50 S) and south (53.2 S) of the present day Antarctic Polar Front (APF), as well as an atmospheric temperature and sea ice proxy from the EPICA ice core from Dronning Maud Land (EDML). We find reasonably good agreement in the timing of climate evolution in the analyzed series. Almost all records show a gradual glacial-to-Holocene climate transition, interrupted by the Antarctic cold reversal around 13 000 cal yr BP, and early Holocene climatic optimum (HCO) at about 11 000 cal yr BP. During the early HCO, the seasonal ice cover retreats to south of 53 S; it then readvances in the course of the mid-to late Holocene. The maximum winter sea ice edge position during the recent 10 000 years varied mainly within 51-53 S, with sporadic growth to north of 50 S, a position similar to that during the last glacial. The onset of the Neoglacial period after ca 4000 yr BP is associated with a steepening of the SSST gradient between the marine core sites, strengthening of the westerlies and cooling in the inland ice sheet. The agreement in timing between elevated SSST during the early HCO and decreased deuterium excess in EDML and other ice cores from different locations in the East Antarctic suggests that the retreat of sea ice during the early HCO and weakening of the APF was a general feature of the East Antarctic climate during that time. Article in Journal/Newspaper Antarc* Antarctic Dronning Maud Land EPICA ice core Ice Sheet Sea ice Southern Ocean Université de Nantes: HAL-UNIV-NANTES Antarctic Dronning Maud Land Southern Ocean The Antarctic Quaternary Science Reviews 29 1-2 303 312 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
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 Divine, D. V. Koç, N. Isaksson, E. Nielsen, S. Crosta, X. Godtliebsen, F. Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction |
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 Holocene climate variability in the southeast Atlantic sector of the Southern Ocean and Antarctic is assessed and quantified through integration of available marine sediment core and Antarctic ice core data. We use summer sea surface temperature (SSST) and sea ice presence (SIP) reconstructions from two marine sediment cores recovered north (50 S) and south (53.2 S) of the present day Antarctic Polar Front (APF), as well as an atmospheric temperature and sea ice proxy from the EPICA ice core from Dronning Maud Land (EDML). We find reasonably good agreement in the timing of climate evolution in the analyzed series. Almost all records show a gradual glacial-to-Holocene climate transition, interrupted by the Antarctic cold reversal around 13 000 cal yr BP, and early Holocene climatic optimum (HCO) at about 11 000 cal yr BP. During the early HCO, the seasonal ice cover retreats to south of 53 S; it then readvances in the course of the mid-to late Holocene. The maximum winter sea ice edge position during the recent 10 000 years varied mainly within 51-53 S, with sporadic growth to north of 50 S, a position similar to that during the last glacial. The onset of the Neoglacial period after ca 4000 yr BP is associated with a steepening of the SSST gradient between the marine core sites, strengthening of the westerlies and cooling in the inland ice sheet. The agreement in timing between elevated SSST during the early HCO and decreased deuterium excess in EDML and other ice cores from different locations in the East Antarctic suggests that the retreat of sea ice during the early HCO and weakening of the APF was a general feature of the East Antarctic climate during that time. |
author2 |
Norwegian Polar Institute University of Tromsø (UiT) 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) |
format |
Article in Journal/Newspaper |
author |
Divine, D. V. Koç, N. Isaksson, E. Nielsen, S. Crosta, X. Godtliebsen, F. |
author_facet |
Divine, D. V. Koç, N. Isaksson, E. Nielsen, S. Crosta, X. Godtliebsen, F. |
author_sort |
Divine, D. V. |
title |
Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction |
title_short |
Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction |
title_full |
Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction |
title_fullStr |
Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction |
title_full_unstemmed |
Holocene Antarctic climate variability from ice and marine sediment cores: Insights on ocean–atmosphere interaction |
title_sort |
holocene antarctic climate variability from ice and marine sediment cores: insights on ocean–atmosphere interaction |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-02105657 https://doi.org/10.1016/j.quascirev.2009.11.012 |
geographic |
Antarctic Dronning Maud Land Southern Ocean The Antarctic |
geographic_facet |
Antarctic Dronning Maud Land Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Dronning Maud Land EPICA ice core Ice Sheet Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Dronning Maud Land EPICA ice core Ice Sheet Sea ice Southern Ocean |
op_source |
ISSN: 0277-3791 Quaternary Science Reviews https://hal.science/hal-02105657 Quaternary Science Reviews, 2010, 29, pp.303-312. ⟨10.1016/j.quascirev.2009.11.012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quascirev.2009.11.012 hal-02105657 https://hal.science/hal-02105657 doi:10.1016/j.quascirev.2009.11.012 |
op_doi |
https://doi.org/10.1016/j.quascirev.2009.11.012 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
1-2 |
container_start_page |
303 |
op_container_end_page |
312 |
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1766132365761970176 |