Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts
Succession of cold glacials and warm interglacials during the Quaternary results from large global climate responses to variable orbital configurations, accompanied by fluctuating greenhouse gas concentrations. Despite the influences of sea ice and atmospheric and ocean circulations in the Southern...
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Online Access: | https://epic.awi.de/id/eprint/55016/ https://doi.org/10.1038/s41561-021-00856-4 https://hdl.handle.net/10013/epic.4649c4d0-60b4-457c-8034-4126036863fb |
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ftawi:oai:epic.awi.de:55016 2023-05-15T13:45:22+02:00 Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts Landais, A. Stenni, B. Masson-Delmotte, V. Jouzel, J. Cauquoin, A. Fourré, E. Minster, B. Selmo, E. Extier, T. Werner, M. Vimeux, F. Uemura, R. Crotti, I. Grisart, A. 2021-11-29 https://epic.awi.de/id/eprint/55016/ https://doi.org/10.1038/s41561-021-00856-4 https://hdl.handle.net/10013/epic.4649c4d0-60b4-457c-8034-4126036863fb unknown Springer Nature Landais, A. , Stenni, B. , Masson-Delmotte, V. , Jouzel, J. , Cauquoin, A. , Fourré, E. , Minster, B. , Selmo, E. , Extier, T. , Werner, M. orcid:0000-0002-6473-0243 , Vimeux, F. , Uemura, R. , Crotti, I. and Grisart, A. (2021) Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts , Nature Geoscience . doi:10.1038/s41561-021-00856-4 <https://doi.org/10.1038/s41561-021-00856-4> , hdl:10013/epic.4649c4d0-60b4-457c-8034-4126036863fb EPIC3Nature Geoscience, Springer Nature, ISSN: 1752-0894 Article isiRev 2021 ftawi https://doi.org/10.1038/s41561-021-00856-4 2021-12-24T15:46:38Z Succession of cold glacials and warm interglacials during the Quaternary results from large global climate responses to variable orbital configurations, accompanied by fluctuating greenhouse gas concentrations. Despite the influences of sea ice and atmospheric and ocean circulations in the Southern Ocean on atmospheric CO2 concentrations and climate, past changes in this region remain poorly documented. Here, we present the 800 ka deuterium excess record from the East Antarctica EPICA Dome C ice core, tracking sea surface temperature in evaporative regions of the Indian sector of the Southern Ocean from which moisture precipitated in East Antarctica is derived. We find that low obliquity leads to surface warming in evaporative moisture source regions during each glacial inception, although this relative temperature increase is counterbalanced by global cooling during glacial maxima. Links between the two regions during interglacials depends on the existence of a temperature maximum at the interglacial onset. In its absence, temperature maxima in the evaporative moisture source regions and in East Antarctica were synchronous. For the other interglacials, temperature maxima in the source areas lag early local temperature maxima by several thousand years, probably because of a change in the position of the evaporative source areas. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica EPICA ice core Sea ice Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic East Antarctica Indian Southern Ocean Nature Geoscience 14 12 918 923 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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description |
Succession of cold glacials and warm interglacials during the Quaternary results from large global climate responses to variable orbital configurations, accompanied by fluctuating greenhouse gas concentrations. Despite the influences of sea ice and atmospheric and ocean circulations in the Southern Ocean on atmospheric CO2 concentrations and climate, past changes in this region remain poorly documented. Here, we present the 800 ka deuterium excess record from the East Antarctica EPICA Dome C ice core, tracking sea surface temperature in evaporative regions of the Indian sector of the Southern Ocean from which moisture precipitated in East Antarctica is derived. We find that low obliquity leads to surface warming in evaporative moisture source regions during each glacial inception, although this relative temperature increase is counterbalanced by global cooling during glacial maxima. Links between the two regions during interglacials depends on the existence of a temperature maximum at the interglacial onset. In its absence, temperature maxima in the evaporative moisture source regions and in East Antarctica were synchronous. For the other interglacials, temperature maxima in the source areas lag early local temperature maxima by several thousand years, probably because of a change in the position of the evaporative source areas. |
format |
Article in Journal/Newspaper |
author |
Landais, A. Stenni, B. Masson-Delmotte, V. Jouzel, J. Cauquoin, A. Fourré, E. Minster, B. Selmo, E. Extier, T. Werner, M. Vimeux, F. Uemura, R. Crotti, I. Grisart, A. |
spellingShingle |
Landais, A. Stenni, B. Masson-Delmotte, V. Jouzel, J. Cauquoin, A. Fourré, E. Minster, B. Selmo, E. Extier, T. Werner, M. Vimeux, F. Uemura, R. Crotti, I. Grisart, A. Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
author_facet |
Landais, A. Stenni, B. Masson-Delmotte, V. Jouzel, J. Cauquoin, A. Fourré, E. Minster, B. Selmo, E. Extier, T. Werner, M. Vimeux, F. Uemura, R. Crotti, I. Grisart, A. |
author_sort |
Landais, A. |
title |
Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
title_short |
Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
title_full |
Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
title_fullStr |
Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
title_full_unstemmed |
Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts |
title_sort |
interglacial antarctic–southern ocean climate decoupling due to moisture source area shifts |
publisher |
Springer Nature |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/55016/ https://doi.org/10.1038/s41561-021-00856-4 https://hdl.handle.net/10013/epic.4649c4d0-60b4-457c-8034-4126036863fb |
geographic |
Antarctic East Antarctica Indian Southern Ocean |
geographic_facet |
Antarctic East Antarctica Indian Southern Ocean |
genre |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica EPICA ice core Sea ice Southern Ocean |
op_source |
EPIC3Nature Geoscience, Springer Nature, ISSN: 1752-0894 |
op_relation |
Landais, A. , Stenni, B. , Masson-Delmotte, V. , Jouzel, J. , Cauquoin, A. , Fourré, E. , Minster, B. , Selmo, E. , Extier, T. , Werner, M. orcid:0000-0002-6473-0243 , Vimeux, F. , Uemura, R. , Crotti, I. and Grisart, A. (2021) Interglacial Antarctic–Southern Ocean climate decoupling due to moisture source area shifts , Nature Geoscience . doi:10.1038/s41561-021-00856-4 <https://doi.org/10.1038/s41561-021-00856-4> , hdl:10013/epic.4649c4d0-60b4-457c-8034-4126036863fb |
op_doi |
https://doi.org/10.1038/s41561-021-00856-4 |
container_title |
Nature Geoscience |
container_volume |
14 |
container_issue |
12 |
container_start_page |
918 |
op_container_end_page |
923 |
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1766222631057489920 |