4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice
International audience Nitrogen and argon isotopes in air trapped in a Greenland ice core (GISP2) show two prominent peaks in the interval 11,800–10,800 B.P., which indicate two large abrupt warming events. The first abrupt warming (10 ± 4 °C) is the widely documented event at the end of the Younger...
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ftunivnantes:oai:HAL:insu-00378493v1 2023-05-15T16:26:51+02:00 4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice Kobashi, Takuro Severinghaus, J. P. Barnola, Jean-Marc Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) NSF grants OPP 05-38657 and ATM 99-05241 2008 https://hal-insu.archives-ouvertes.fr/insu-00378493 https://doi.org/10.1016/j.epsl.2008.01.032 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2008.01.032 insu-00378493 https://hal-insu.archives-ouvertes.fr/insu-00378493 doi:10.1016/j.epsl.2008.01.032 ISSN: 0012-821X Earth and Planetary Science Letters https://hal-insu.archives-ouvertes.fr/insu-00378493 Earth and Planetary Science Letters, 2008, 268 (3-4), pp.397 à 407. ⟨10.1016/j.epsl.2008.01.032⟩ Preboreal Oscillation abrupt climate change Holocene Greenland ice core [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2008 ftunivnantes https://doi.org/10.1016/j.epsl.2008.01.032 2023-02-08T02:26:00Z International audience Nitrogen and argon isotopes in air trapped in a Greenland ice core (GISP2) show two prominent peaks in the interval 11,800–10,800 B.P., which indicate two large abrupt warming events. The first abrupt warming (10 ± 4 °C) is the widely documented event at the end of the Younger Dryas. Here, we report on the second abrupt warming (4 ± 1.5 °C), which occurred at the end of a short lived cooler interval known as the Preboreal Oscillation (11,270 ± 30 B.P.). A rapid snow accumulation increase suggests that the climatic transition may have occurred within a few years. The character of the Preboreal Oscillation and the subsequent abrupt warming is similar to the Dansgaard–Oeschger (D/O) events in the last glacial period, suggestive of a common mechanism, but different from another large climate change at 8,200 B.P., in which cooling was abrupt but subsequent warming was gradual. The large abrupt warming at 11,270 B.P. may be considered to be the final D/O event prior to the arrival of the present stable and warm epoch. Article in Journal/Newspaper Greenland Greenland ice core ice core Université de Nantes: HAL-UNIV-NANTES Greenland Earth and Planetary Science Letters 268 3-4 397 407 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Preboreal Oscillation abrupt climate change Holocene Greenland ice core [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
Preboreal Oscillation abrupt climate change Holocene Greenland ice core [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Kobashi, Takuro Severinghaus, J. P. Barnola, Jean-Marc 4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice |
topic_facet |
Preboreal Oscillation abrupt climate change Holocene Greenland ice core [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Nitrogen and argon isotopes in air trapped in a Greenland ice core (GISP2) show two prominent peaks in the interval 11,800–10,800 B.P., which indicate two large abrupt warming events. The first abrupt warming (10 ± 4 °C) is the widely documented event at the end of the Younger Dryas. Here, we report on the second abrupt warming (4 ± 1.5 °C), which occurred at the end of a short lived cooler interval known as the Preboreal Oscillation (11,270 ± 30 B.P.). A rapid snow accumulation increase suggests that the climatic transition may have occurred within a few years. The character of the Preboreal Oscillation and the subsequent abrupt warming is similar to the Dansgaard–Oeschger (D/O) events in the last glacial period, suggestive of a common mechanism, but different from another large climate change at 8,200 B.P., in which cooling was abrupt but subsequent warming was gradual. The large abrupt warming at 11,270 B.P. may be considered to be the final D/O event prior to the arrival of the present stable and warm epoch. |
author2 |
Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) NSF grants OPP 05-38657 and ATM 99-05241 |
format |
Article in Journal/Newspaper |
author |
Kobashi, Takuro Severinghaus, J. P. Barnola, Jean-Marc |
author_facet |
Kobashi, Takuro Severinghaus, J. P. Barnola, Jean-Marc |
author_sort |
Kobashi, Takuro |
title |
4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice |
title_short |
4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice |
title_full |
4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice |
title_fullStr |
4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice |
title_full_unstemmed |
4 ± 1.5 °C abrupt warming 11,270 yr ago identified from trapped air in Greenland ice |
title_sort |
4 ± 1.5 °c abrupt warming 11,270 yr ago identified from trapped air in greenland ice |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal-insu.archives-ouvertes.fr/insu-00378493 https://doi.org/10.1016/j.epsl.2008.01.032 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core ice core |
genre_facet |
Greenland Greenland ice core ice core |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal-insu.archives-ouvertes.fr/insu-00378493 Earth and Planetary Science Letters, 2008, 268 (3-4), pp.397 à 407. ⟨10.1016/j.epsl.2008.01.032⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2008.01.032 insu-00378493 https://hal-insu.archives-ouvertes.fr/insu-00378493 doi:10.1016/j.epsl.2008.01.032 |
op_doi |
https://doi.org/10.1016/j.epsl.2008.01.032 |
container_title |
Earth and Planetary Science Letters |
container_volume |
268 |
container_issue |
3-4 |
container_start_page |
397 |
op_container_end_page |
407 |
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1766015859428425728 |