Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data
The main migrations of the Polar front (PF) during the last 300 ka were identified using planktic foraminiferal census data and derived from them sea surface paleotemperature (SST) estimates in two synchronized AMK-4438 and M23414 cores recovered directly beneath the main stream of the North Atlanti...
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ftoceanrep:oai:oceanrep.geomar.de:27193 2023-05-15T15:09:28+02:00 Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data Bashirova, Leyla D. Kandiano, Evgeniya S. Sivkov, Vadim V. Bauch, Henning A. 2014-12-24 text https://oceanrep.geomar.de/id/eprint/27193/ https://oceanrep.geomar.de/id/eprint/27193/1/art_10.1134_S0001437014060010.pdf https://doi.org/10.1134/S0001437014060010 en eng Springer https://oceanrep.geomar.de/id/eprint/27193/1/art_10.1134_S0001437014060010.pdf Bashirova, L. D., Kandiano, E. S., Sivkov, V. V. and Bauch, H. A. (2014) Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data. Oceanology, 54 (6). pp. 798-807. DOI 10.1134/S0001437014060010 <https://doi.org/10.1134/S0001437014060010>. doi:10.1134/S0001437014060010 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2014 ftoceanrep https://doi.org/10.1134/S0001437014060010 2023-04-07T15:17:03Z The main migrations of the Polar front (PF) during the last 300 ka were identified using planktic foraminiferal census data and derived from them sea surface paleotemperature (SST) estimates in two synchronized AMK-4438 and M23414 cores recovered directly beneath the main stream of the North Atlantic Current (NAC) south of Iceland. During the summer seasons, the cold waters adjacent to the PF did not reach the studied sites. These waters occurred here only during the winter seasons of MIS 2, 6, and 8. The northern part of the study area was influenced by the arctic waters more often than its southern part. During MIS 8 and 6 isotherms in the North Atlantic had mainly the subzonal orientation, while during MIS 2-4 they had the submeridional orientation. During the interglacials, the PF was located northward and westward from the study area. During MIS 7, the front was presumably situated closer to the study area in comparison with its modern position, and the isotherms were oriented mainly subzonal. For the MIS 5e period, we observed the most distant retreat of PF from the investigated area in the western and northwestern direction in relation to the anomalous deflection of the NAC to the north-west (intensification of the Irminger current) and the predominance of the submeridional orientation of the isotherms in the study area. During MIS 1, as well as MIS 7, the isotherms in the study area had mainly the subzonal orientation. Article in Journal/Newspaper Arctic Foraminifera* Iceland north atlantic current North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Oceanology 54 6 798 807 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The main migrations of the Polar front (PF) during the last 300 ka were identified using planktic foraminiferal census data and derived from them sea surface paleotemperature (SST) estimates in two synchronized AMK-4438 and M23414 cores recovered directly beneath the main stream of the North Atlantic Current (NAC) south of Iceland. During the summer seasons, the cold waters adjacent to the PF did not reach the studied sites. These waters occurred here only during the winter seasons of MIS 2, 6, and 8. The northern part of the study area was influenced by the arctic waters more often than its southern part. During MIS 8 and 6 isotherms in the North Atlantic had mainly the subzonal orientation, while during MIS 2-4 they had the submeridional orientation. During the interglacials, the PF was located northward and westward from the study area. During MIS 7, the front was presumably situated closer to the study area in comparison with its modern position, and the isotherms were oriented mainly subzonal. For the MIS 5e period, we observed the most distant retreat of PF from the investigated area in the western and northwestern direction in relation to the anomalous deflection of the NAC to the north-west (intensification of the Irminger current) and the predominance of the submeridional orientation of the isotherms in the study area. During MIS 1, as well as MIS 7, the isotherms in the study area had mainly the subzonal orientation. |
format |
Article in Journal/Newspaper |
author |
Bashirova, Leyla D. Kandiano, Evgeniya S. Sivkov, Vadim V. Bauch, Henning A. |
spellingShingle |
Bashirova, Leyla D. Kandiano, Evgeniya S. Sivkov, Vadim V. Bauch, Henning A. Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data |
author_facet |
Bashirova, Leyla D. Kandiano, Evgeniya S. Sivkov, Vadim V. Bauch, Henning A. |
author_sort |
Bashirova, Leyla D. |
title |
Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data |
title_short |
Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data |
title_full |
Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data |
title_fullStr |
Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data |
title_full_unstemmed |
Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data |
title_sort |
migrations of the north atlantic polar front during the last 300 ka: evidence from planktic foraminiferal data |
publisher |
Springer |
publishDate |
2014 |
url |
https://oceanrep.geomar.de/id/eprint/27193/ https://oceanrep.geomar.de/id/eprint/27193/1/art_10.1134_S0001437014060010.pdf https://doi.org/10.1134/S0001437014060010 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* Iceland north atlantic current North Atlantic |
genre_facet |
Arctic Foraminifera* Iceland north atlantic current North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/27193/1/art_10.1134_S0001437014060010.pdf Bashirova, L. D., Kandiano, E. S., Sivkov, V. V. and Bauch, H. A. (2014) Migrations of the North Atlantic Polar front during the last 300 ka: Evidence from planktic foraminiferal data. Oceanology, 54 (6). pp. 798-807. DOI 10.1134/S0001437014060010 <https://doi.org/10.1134/S0001437014060010>. doi:10.1134/S0001437014060010 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1134/S0001437014060010 |
container_title |
Oceanology |
container_volume |
54 |
container_issue |
6 |
container_start_page |
798 |
op_container_end_page |
807 |
_version_ |
1766340662123298816 |