Asynchrony of antarctic and greenland climate change during the last glacial period

A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast temperature changes observed in Greenland (so-called Dansgaard- Oeschger events) during the last glaclation have an analogue in the temperature...

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Published in:Nature
Main Authors: Blunier, T., Chappellaz, J., Schwander, J., Dallenbach, A., Stauffer, B., Stocker, T. F., Raynaud, D., Jouzel, J., Clausen, H. B., Hammer, C. U., Johnsen, S. J.
Format: Text
Language:unknown
Published: London, Springer Science and Business Media LLC 2022
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Online Access:https://doi.org/10.1038/29447
http://infoscience.epfl.ch/record/298277
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spelling ftinfoscience:oai:infoscience.epfl.ch:298277 2023-05-15T13:43:17+02:00 Asynchrony of antarctic and greenland climate change during the last glacial period Blunier, T. Chappellaz, J. Schwander, J. Dallenbach, A. Stauffer, B. Stocker, T. F. Raynaud, D. Jouzel, J. Clausen, H. B. Hammer, C. U. Johnsen, S. J. 2022-11-23T16:11:05Z https://doi.org/10.1038/29447 http://infoscience.epfl.ch/record/298277 unknown London, Springer Science and Business Media LLC doi:10.1038/29447 isi:000075503600034 http://infoscience.epfl.ch/record/298277 http://infoscience.epfl.ch/record/298277 Text 2022 ftinfoscience https://doi.org/10.1038/29447 2023-02-13T23:12:29Z A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast temperature changes observed in Greenland (so-called Dansgaard- Oeschger events) during the last glaclation have an analogue in the temperature record from Antarctica. A comparison of the global atmospheric concentration of methane as recorded in ice cores from Antarctica and Greenland permits a determination of the phase relationship (in leads or lags) of these temperature variations. Greenland warming events around 36 and 45 kyr before present lag their Antarctic counterpart by more than 1 kyr. On average, Antarctic climate change leads that of Greenland by 1-2.5 kyr over the period 47-23 kyr before present. Text Antarc* Antarctic Antarctica Dansgaard-Oeschger events Greenland EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Antarctic Greenland Nature 394 6695 739 743
institution Open Polar
collection EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne)
op_collection_id ftinfoscience
language unknown
description A central issue in climate dynamics is to understand how the Northern and Southern hemispheres are coupled during climate events. The strongest of the fast temperature changes observed in Greenland (so-called Dansgaard- Oeschger events) during the last glaclation have an analogue in the temperature record from Antarctica. A comparison of the global atmospheric concentration of methane as recorded in ice cores from Antarctica and Greenland permits a determination of the phase relationship (in leads or lags) of these temperature variations. Greenland warming events around 36 and 45 kyr before present lag their Antarctic counterpart by more than 1 kyr. On average, Antarctic climate change leads that of Greenland by 1-2.5 kyr over the period 47-23 kyr before present.
format Text
author Blunier, T.
Chappellaz, J.
Schwander, J.
Dallenbach, A.
Stauffer, B.
Stocker, T. F.
Raynaud, D.
Jouzel, J.
Clausen, H. B.
Hammer, C. U.
Johnsen, S. J.
spellingShingle Blunier, T.
Chappellaz, J.
Schwander, J.
Dallenbach, A.
Stauffer, B.
Stocker, T. F.
Raynaud, D.
Jouzel, J.
Clausen, H. B.
Hammer, C. U.
Johnsen, S. J.
Asynchrony of antarctic and greenland climate change during the last glacial period
author_facet Blunier, T.
Chappellaz, J.
Schwander, J.
Dallenbach, A.
Stauffer, B.
Stocker, T. F.
Raynaud, D.
Jouzel, J.
Clausen, H. B.
Hammer, C. U.
Johnsen, S. J.
author_sort Blunier, T.
title Asynchrony of antarctic and greenland climate change during the last glacial period
title_short Asynchrony of antarctic and greenland climate change during the last glacial period
title_full Asynchrony of antarctic and greenland climate change during the last glacial period
title_fullStr Asynchrony of antarctic and greenland climate change during the last glacial period
title_full_unstemmed Asynchrony of antarctic and greenland climate change during the last glacial period
title_sort asynchrony of antarctic and greenland climate change during the last glacial period
publisher London, Springer Science and Business Media LLC
publishDate 2022
url https://doi.org/10.1038/29447
http://infoscience.epfl.ch/record/298277
geographic Antarctic
Greenland
geographic_facet Antarctic
Greenland
genre Antarc*
Antarctic
Antarctica
Dansgaard-Oeschger events
Greenland
genre_facet Antarc*
Antarctic
Antarctica
Dansgaard-Oeschger events
Greenland
op_source http://infoscience.epfl.ch/record/298277
op_relation doi:10.1038/29447
isi:000075503600034
http://infoscience.epfl.ch/record/298277
op_doi https://doi.org/10.1038/29447
container_title Nature
container_volume 394
container_issue 6695
container_start_page 739
op_container_end_page 743
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