Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago
Past sea-level records provide invaluable information about the response of ice sheets to climate forcing. Some such records suggest that the last deglaciation was punctuated by a dramatic period of sea-level rise, of about 20 metres, in less than 500 years. Controversy about the amplitude and timin...
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ftunivaixmarseil:oai:HAL:hal-01230139v1 2023-12-17T10:31:47+01:00 Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago Deschamps, Pierre Durand, N. Bard, Edouard Hamelin, Bruno Camoin, Gilbert Thomas, A. L. Henderson, G. M. Okuno, J. Yokoyama, Y. Collège de France - Chaire Evolution du climat et de l'océan Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) 2012 https://hal.science/hal-01230139 https://doi.org/10.1038/nature10902 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/nature10902 hal-01230139 https://hal.science/hal-01230139 doi:10.1038/nature10902 ISSN: 0028-0836 EISSN: 1476-4687 Nature https://hal.science/hal-01230139 Nature, 2012, 483 (7391), pp.559-564. ⟨10.1038/nature10902⟩ 0028-0836 [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2012 ftunivaixmarseil https://doi.org/10.1038/nature10902 2023-11-21T23:52:49Z Past sea-level records provide invaluable information about the response of ice sheets to climate forcing. Some such records suggest that the last deglaciation was punctuated by a dramatic period of sea-level rise, of about 20 metres, in less than 500 years. Controversy about the amplitude and timing of this meltwater pulse (MWP-1A) has, however, led to uncertainty about the source of the melt water and its temporal and causal relationships with the abrupt climate changes of the deglaciation. Here we show that MWP-1A started no earlier than 14,650 years ago and ended before 14,310 years ago, making it coeval with the Bolling warming. Our results, based on corals drilled offshore from Tahiti during Integrated Ocean Drilling Project Expedition 310, reveal that the increase in sea level at Tahiti was between 12 and 22 metres, with a most probable value between 14 and 18 metres, establishing a significant meltwater contribution from the Southern Hemisphere. This implies that the rate of eustatic sea-level rise exceeded 40 millimetres per year during MWP-1A. Article in Journal/Newspaper Ice Sheet Aix-Marseille Université: HAL Nature 483 7391 559 564 |
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Open Polar |
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Aix-Marseille Université: HAL |
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ftunivaixmarseil |
language |
English |
topic |
0028-0836 [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
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0028-0836 [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] Deschamps, Pierre Durand, N. Bard, Edouard Hamelin, Bruno Camoin, Gilbert Thomas, A. L. Henderson, G. M. Okuno, J. Yokoyama, Y. Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago |
topic_facet |
0028-0836 [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph] |
description |
Past sea-level records provide invaluable information about the response of ice sheets to climate forcing. Some such records suggest that the last deglaciation was punctuated by a dramatic period of sea-level rise, of about 20 metres, in less than 500 years. Controversy about the amplitude and timing of this meltwater pulse (MWP-1A) has, however, led to uncertainty about the source of the melt water and its temporal and causal relationships with the abrupt climate changes of the deglaciation. Here we show that MWP-1A started no earlier than 14,650 years ago and ended before 14,310 years ago, making it coeval with the Bolling warming. Our results, based on corals drilled offshore from Tahiti during Integrated Ocean Drilling Project Expedition 310, reveal that the increase in sea level at Tahiti was between 12 and 22 metres, with a most probable value between 14 and 18 metres, establishing a significant meltwater contribution from the Southern Hemisphere. This implies that the rate of eustatic sea-level rise exceeded 40 millimetres per year during MWP-1A. |
author2 |
Collège de France - Chaire Evolution du climat et de l'océan Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
format |
Article in Journal/Newspaper |
author |
Deschamps, Pierre Durand, N. Bard, Edouard Hamelin, Bruno Camoin, Gilbert Thomas, A. L. Henderson, G. M. Okuno, J. Yokoyama, Y. |
author_facet |
Deschamps, Pierre Durand, N. Bard, Edouard Hamelin, Bruno Camoin, Gilbert Thomas, A. L. Henderson, G. M. Okuno, J. Yokoyama, Y. |
author_sort |
Deschamps, Pierre |
title |
Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago |
title_short |
Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago |
title_full |
Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago |
title_fullStr |
Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago |
title_full_unstemmed |
Ice-sheet collapse and sea-level rise at the Bolling warming 14,600 years ago |
title_sort |
ice-sheet collapse and sea-level rise at the bolling warming 14,600 years ago |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-01230139 https://doi.org/10.1038/nature10902 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
ISSN: 0028-0836 EISSN: 1476-4687 Nature https://hal.science/hal-01230139 Nature, 2012, 483 (7391), pp.559-564. ⟨10.1038/nature10902⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/nature10902 hal-01230139 https://hal.science/hal-01230139 doi:10.1038/nature10902 |
op_doi |
https://doi.org/10.1038/nature10902 |
container_title |
Nature |
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483 |
container_issue |
7391 |
container_start_page |
559 |
op_container_end_page |
564 |
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1785585179425767424 |