Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea
International audience The causes of the recent increase in Antarctic sea ice extent, characterised by large regional contrasts and decadal variations, remain unclear. In the Ross Sea, where such a sea ice increase is reported, 50% of the sea ice is produced within wind-sustained latent-heat polynya...
Published in: | Nature Communications |
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Main Authors: | , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2017
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Subjects: | |
Online Access: | https://hal.science/hal-02105538 https://hal.science/hal-02105538/document https://hal.science/hal-02105538/file/Mezgec_NatComms2017.pdf https://doi.org/10.1038/s41467-017-01455-x |
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Open Polar |
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HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
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ftceafr |
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 [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
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 [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Mezgec, K. Stenni, B. Crosta, X. Masson-Delmotte, Valérie Baroni, C. Braida, M. Ciardini, V. Colizza, E. Melis, R. Salvatore, M. C. Severi, M. Scarchilli, C. Traversi, R. Udisti, R. Frezzotti, M. Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea |
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 [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience The causes of the recent increase in Antarctic sea ice extent, characterised by large regional contrasts and decadal variations, remain unclear. In the Ross Sea, where such a sea ice increase is reported, 50% of the sea ice is produced within wind-sustained latent-heat polynyas. Combining information from marine diatom records and sea salt sodium and water isotope ice core records, we here document contrasting patterns in sea ice variations between coastal and open sea areas in Western Ross Sea over the current interglacial period. Since about 3600 years before present, an increase in the efficiency of regional latent-heat polynyas resulted in more coastal sea ice, while sea ice extent decreased overall. These past changes coincide with remarkable optima or minima in the abundances of penguins, silverfish and seal remains, confirming the high sensitivity of marine ecosystems to environmental and especially coastal sea ice conditions. |
author2 |
Università degli Studi di Siena = University of Siena (UNISI) Dipartimento di Scienze Geologiche Trieste Università degli studi di Trieste = University of Trieste 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 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)) Istituto di Geoscienze e Georisorse University of Pisa - Università di Pisa Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) Università degli Studi di Firenze = University of Florence = Université de Florence (UniFI) Italian National agency for new technologies, Energy and sustainable economic development Frascati (ENEA) |
format |
Article in Journal/Newspaper |
author |
Mezgec, K. Stenni, B. Crosta, X. Masson-Delmotte, Valérie Baroni, C. Braida, M. Ciardini, V. Colizza, E. Melis, R. Salvatore, M. C. Severi, M. Scarchilli, C. Traversi, R. Udisti, R. Frezzotti, M. |
author_facet |
Mezgec, K. Stenni, B. Crosta, X. Masson-Delmotte, Valérie Baroni, C. Braida, M. Ciardini, V. Colizza, E. Melis, R. Salvatore, M. C. Severi, M. Scarchilli, C. Traversi, R. Udisti, R. Frezzotti, M. |
author_sort |
Mezgec, K. |
title |
Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea |
title_short |
Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea |
title_full |
Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea |
title_fullStr |
Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea |
title_full_unstemmed |
Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea |
title_sort |
holocene sea ice variability driven by wind and polynya efficiency in the ross sea |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-02105538 https://hal.science/hal-02105538/document https://hal.science/hal-02105538/file/Mezgec_NatComms2017.pdf https://doi.org/10.1038/s41467-017-01455-x |
genre |
Antarc* Antarctic ice core Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic ice core Ross Sea Sea ice |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-02105538 Nature Communications, 2017, 8, pp.1334. ⟨10.1038/s41467-017-01455-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-01455-x hal-02105538 https://hal.science/hal-02105538 https://hal.science/hal-02105538/document https://hal.science/hal-02105538/file/Mezgec_NatComms2017.pdf doi:10.1038/s41467-017-01455-x |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-017-01455-x |
container_title |
Nature Communications |
container_volume |
8 |
container_issue |
1 |
_version_ |
1810494982606290944 |
spelling |
ftceafr:oai:HAL:hal-02105538v1 2024-09-15T17:46:40+00:00 Holocene sea ice variability driven by wind and polynya efficiency in the Ross Sea Mezgec, K. Stenni, B. Crosta, X. Masson-Delmotte, Valérie Baroni, C. Braida, M. Ciardini, V. Colizza, E. Melis, R. Salvatore, M. C. Severi, M. Scarchilli, C. Traversi, R. Udisti, R. Frezzotti, M. Università degli Studi di Siena = University of Siena (UNISI) Dipartimento di Scienze Geologiche Trieste Università degli studi di Trieste = University of Trieste 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 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)) Istituto di Geoscienze e Georisorse University of Pisa - Università di Pisa Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) Università degli Studi di Firenze = University of Florence = Université de Florence (UniFI) Italian National agency for new technologies, Energy and sustainable economic development Frascati (ENEA) 2017 https://hal.science/hal-02105538 https://hal.science/hal-02105538/document https://hal.science/hal-02105538/file/Mezgec_NatComms2017.pdf https://doi.org/10.1038/s41467-017-01455-x en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-01455-x hal-02105538 https://hal.science/hal-02105538 https://hal.science/hal-02105538/document https://hal.science/hal-02105538/file/Mezgec_NatComms2017.pdf doi:10.1038/s41467-017-01455-x info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-02105538 Nature Communications, 2017, 8, pp.1334. ⟨10.1038/s41467-017-01455-x⟩ [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 [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2017 ftceafr https://doi.org/10.1038/s41467-017-01455-x 2024-07-22T13:23:56Z International audience The causes of the recent increase in Antarctic sea ice extent, characterised by large regional contrasts and decadal variations, remain unclear. In the Ross Sea, where such a sea ice increase is reported, 50% of the sea ice is produced within wind-sustained latent-heat polynyas. Combining information from marine diatom records and sea salt sodium and water isotope ice core records, we here document contrasting patterns in sea ice variations between coastal and open sea areas in Western Ross Sea over the current interglacial period. Since about 3600 years before present, an increase in the efficiency of regional latent-heat polynyas resulted in more coastal sea ice, while sea ice extent decreased overall. These past changes coincide with remarkable optima or minima in the abundances of penguins, silverfish and seal remains, confirming the high sensitivity of marine ecosystems to environmental and especially coastal sea ice conditions. Article in Journal/Newspaper Antarc* Antarctic ice core Ross Sea Sea ice HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Nature Communications 8 1 |