Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector)
Late Quaternary summer sea surface temperatures (SSTs) have been derived from radiolarian assemblages in the East Atlantic sector of the Southern Ocean. In the subantarctic and the polar frontal zone, glacial SSTs (oxygen isotope stages 2, 4, 6, and 8) were 3 degrees-5 degrees C cooler than today, i...
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1999
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Online Access: | https://doi.org/10.1029/1998PA900020 https://archimer.ifremer.fr/doc/00239/35066/34590.pdf https://archimer.ifremer.fr/doc/00239/35066/ |
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fttriple:oai:gotriple.eu:10670/1.vscqgs 2023-05-15T17:13:50+02:00 Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) Brathauer, U Abelmann, A 1999-01-01 https://doi.org/10.1029/1998PA900020 https://archimer.ifremer.fr/doc/00239/35066/34590.pdf https://archimer.ifremer.fr/doc/00239/35066/ en eng Amer Geophysical Union doi:10.1029/1998PA900020 10670/1.vscqgs https://archimer.ifremer.fr/doc/00239/35066/34590.pdf https://archimer.ifremer.fr/doc/00239/35066/ other Archimer, archive institutionnelle de l'Ifremer Paleoceanography (0883-8305) (Amer Geophysical Union), 1999-04 , Vol. 14 , N. 2 , P. 135-148 anthro-bio geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 1999 fttriple https://doi.org/10.1029/1998PA900020 2023-01-22T17:38:30Z Late Quaternary summer sea surface temperatures (SSTs) have been derived from radiolarian assemblages in the East Atlantic sector of the Southern Ocean. In the subantarctic and the polar frontal zone, glacial SSTs (oxygen isotope stages 2, 4, 6, and 8) were 3 degrees-5 degrees C cooler than today, indicating northward displacements of the isotherms about 2 degrees-4 degrees of latitudes. During interglacials, SSTs almost reached modern levels (oxygen isotope stages 7 and 9) or exceeded them by 2 degrees-3 degrees C (oxygen isotope stages 1 and 5.5). In the subantarctic Atlantic Ocean, changes in SST and calcium carbonate content of the sediment precede variations in global ice volume in the range of the main Milankovitch frequencies. Comparisons with the timing of North Atlantic Deep Water (NADW) proxy records suggests that this early response in the subantarctic Atlantic Ocean is not triggered by the flux of NADW to the Southern Ocean. Text NADW North Atlantic Deep Water North Atlantic Southern Ocean Unknown Southern Ocean Paleoceanography 14 2 135 148 |
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anthro-bio geo |
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anthro-bio geo Brathauer, U Abelmann, A Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) |
topic_facet |
anthro-bio geo |
description |
Late Quaternary summer sea surface temperatures (SSTs) have been derived from radiolarian assemblages in the East Atlantic sector of the Southern Ocean. In the subantarctic and the polar frontal zone, glacial SSTs (oxygen isotope stages 2, 4, 6, and 8) were 3 degrees-5 degrees C cooler than today, indicating northward displacements of the isotherms about 2 degrees-4 degrees of latitudes. During interglacials, SSTs almost reached modern levels (oxygen isotope stages 7 and 9) or exceeded them by 2 degrees-3 degrees C (oxygen isotope stages 1 and 5.5). In the subantarctic Atlantic Ocean, changes in SST and calcium carbonate content of the sediment precede variations in global ice volume in the range of the main Milankovitch frequencies. Comparisons with the timing of North Atlantic Deep Water (NADW) proxy records suggests that this early response in the subantarctic Atlantic Ocean is not triggered by the flux of NADW to the Southern Ocean. |
format |
Text |
author |
Brathauer, U Abelmann, A |
author_facet |
Brathauer, U Abelmann, A |
author_sort |
Brathauer, U |
title |
Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) |
title_short |
Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) |
title_full |
Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) |
title_fullStr |
Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) |
title_full_unstemmed |
Late Quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the Southern Ocean (Atlantic sector) |
title_sort |
late quaternary variations in sea surface temperatures and their relationship to orbital forcing recorded in the southern ocean (atlantic sector) |
publisher |
Amer Geophysical Union |
publishDate |
1999 |
url |
https://doi.org/10.1029/1998PA900020 https://archimer.ifremer.fr/doc/00239/35066/34590.pdf https://archimer.ifremer.fr/doc/00239/35066/ |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
NADW North Atlantic Deep Water North Atlantic Southern Ocean |
genre_facet |
NADW North Atlantic Deep Water North Atlantic Southern Ocean |
op_source |
Archimer, archive institutionnelle de l'Ifremer Paleoceanography (0883-8305) (Amer Geophysical Union), 1999-04 , Vol. 14 , N. 2 , P. 135-148 |
op_relation |
doi:10.1029/1998PA900020 10670/1.vscqgs https://archimer.ifremer.fr/doc/00239/35066/34590.pdf https://archimer.ifremer.fr/doc/00239/35066/ |
op_rights |
other |
op_doi |
https://doi.org/10.1029/1998PA900020 |
container_title |
Paleoceanography |
container_volume |
14 |
container_issue |
2 |
container_start_page |
135 |
op_container_end_page |
148 |
_version_ |
1766071023053045760 |