Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial
The Last Interglacial in the Arctic region is often described as a time with warmer conditions and significantly less summer sea ice than today. The role of Atlantic water (AW) as the main oceanic heat flux agent into the Arctic Ocean remains, however, unclear. Using high-resolution stable isotope a...
Published in: | Global and Planetary Change |
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Online Access: | https://oceanrep.geomar.de/id/eprint/39787/ https://oceanrep.geomar.de/id/eprint/39787/1/Zhuravleva.pdf https://doi.org/10.1016/j.gloplacha.2017.09.005 |
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ftoceanrep:oai:oceanrep.geomar.de:39787 2023-05-15T14:25:59+02:00 Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial Zhuravleva, Anastasia Bauch, Henning A. Spielhagen, Robert F. 2017-10 text https://oceanrep.geomar.de/id/eprint/39787/ https://oceanrep.geomar.de/id/eprint/39787/1/Zhuravleva.pdf https://doi.org/10.1016/j.gloplacha.2017.09.005 en eng Elsevier https://oceanrep.geomar.de/id/eprint/39787/1/Zhuravleva.pdf Zhuravleva, A., Bauch, H. A. and Spielhagen, R. F. (2017) Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial. Global and Planetary Change, 157 . pp. 232-243. DOI 10.1016/j.gloplacha.2017.09.005 <https://doi.org/10.1016/j.gloplacha.2017.09.005>. doi:10.1016/j.gloplacha.2017.09.005 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2017 ftoceanrep https://doi.org/10.1016/j.gloplacha.2017.09.005 2023-04-07T15:35:53Z The Last Interglacial in the Arctic region is often described as a time with warmer conditions and significantly less summer sea ice than today. The role of Atlantic water (AW) as the main oceanic heat flux agent into the Arctic Ocean remains, however, unclear. Using high-resolution stable isotope and faunal records from the only deep Arctic Gateway, the Fram Strait, we note for the upper water column a diminished influence of AW and generally colder-than-Holocene surface ocean conditions. After the main Saalian deglaciation had terminated, a first intensification of northward-advected AW happened (~124 ka). However, an intermittent sea surface cooling, triggered by meltwater release at ~122 ka, caused a regional delay in the further development towards peak interglacial conditions. Maximum AW heat advection occurred during late MIS 5e (118.5-116 ka) and interrupted a longer-term cooling trend at the sea surface that started from about 120 ka on. Such a late occurrence of the major AW-derived near-surface warming in the Fram Strait - this is in stark contrast to an early warm peak in the Holocene - compares well in time with upstream records from the Norwegian Sea, altogether implying a coherent development of south-to-north ocean heat transfer through the eastern Nordic Seas and into the high Arctic during the Last Interglacial. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Fram Strait Nordic Seas Norwegian Sea Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Gateway The ENVELOPE(170.967,170.967,-83.517,-83.517) Norwegian Sea Global and Planetary Change 157 232 243 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The Last Interglacial in the Arctic region is often described as a time with warmer conditions and significantly less summer sea ice than today. The role of Atlantic water (AW) as the main oceanic heat flux agent into the Arctic Ocean remains, however, unclear. Using high-resolution stable isotope and faunal records from the only deep Arctic Gateway, the Fram Strait, we note for the upper water column a diminished influence of AW and generally colder-than-Holocene surface ocean conditions. After the main Saalian deglaciation had terminated, a first intensification of northward-advected AW happened (~124 ka). However, an intermittent sea surface cooling, triggered by meltwater release at ~122 ka, caused a regional delay in the further development towards peak interglacial conditions. Maximum AW heat advection occurred during late MIS 5e (118.5-116 ka) and interrupted a longer-term cooling trend at the sea surface that started from about 120 ka on. Such a late occurrence of the major AW-derived near-surface warming in the Fram Strait - this is in stark contrast to an early warm peak in the Holocene - compares well in time with upstream records from the Norwegian Sea, altogether implying a coherent development of south-to-north ocean heat transfer through the eastern Nordic Seas and into the high Arctic during the Last Interglacial. |
format |
Article in Journal/Newspaper |
author |
Zhuravleva, Anastasia Bauch, Henning A. Spielhagen, Robert F. |
spellingShingle |
Zhuravleva, Anastasia Bauch, Henning A. Spielhagen, Robert F. Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial |
author_facet |
Zhuravleva, Anastasia Bauch, Henning A. Spielhagen, Robert F. |
author_sort |
Zhuravleva, Anastasia |
title |
Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial |
title_short |
Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial |
title_full |
Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial |
title_fullStr |
Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial |
title_full_unstemmed |
Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial |
title_sort |
atlantic water heat transfer through the arctic gateway (fram strait) during the last interglacial |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://oceanrep.geomar.de/id/eprint/39787/ https://oceanrep.geomar.de/id/eprint/39787/1/Zhuravleva.pdf https://doi.org/10.1016/j.gloplacha.2017.09.005 |
long_lat |
ENVELOPE(170.967,170.967,-83.517,-83.517) |
geographic |
Arctic Arctic Ocean Gateway The Norwegian Sea |
geographic_facet |
Arctic Arctic Ocean Gateway The Norwegian Sea |
genre |
Arctic Arctic Arctic Ocean Fram Strait Nordic Seas Norwegian Sea Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Fram Strait Nordic Seas Norwegian Sea Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/39787/1/Zhuravleva.pdf Zhuravleva, A., Bauch, H. A. and Spielhagen, R. F. (2017) Atlantic water heat transfer through the Arctic Gateway (Fram Strait) during the Last Interglacial. Global and Planetary Change, 157 . pp. 232-243. DOI 10.1016/j.gloplacha.2017.09.005 <https://doi.org/10.1016/j.gloplacha.2017.09.005>. doi:10.1016/j.gloplacha.2017.09.005 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.gloplacha.2017.09.005 |
container_title |
Global and Planetary Change |
container_volume |
157 |
container_start_page |
232 |
op_container_end_page |
243 |
_version_ |
1766298470681935872 |