Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea
A marine sediment core (JM09-KA11-GC) from the Kveithola Trough at the western Barents Sea margin has been investigated in order to reconstruct sub-surface temperatures and sea ice distribution at a sub-centennial resolution throughout the Holocene. The relationship between past variability of Atlan...
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ftarchimer:oai:archimer.ifremer.fr:40232 2023-05-15T15:38:43+02:00 Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea Berben, S. M. P. Husum, K. Cabedo-sanz, P. Belt, S. T. 2014-01-23 application/pdf https://archimer.ifremer.fr/doc/00291/40232/38685.pdf https://doi.org/10.5194/cp-10-181-2014 https://archimer.ifremer.fr/doc/00291/40232/ eng eng Copernicus Gesellschaft Mbh info:eu-repo/grantAgreement/EC/FP7/238111/EU//CASE https://archimer.ifremer.fr/doc/00291/40232/38685.pdf doi:10.5194/cp-10-181-2014 https://archimer.ifremer.fr/doc/00291/40232/ Author(s) 2014. CC Attribution 3.0 License info:eu-repo/semantics/openAccess restricted use CC-BY Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2014-01-23 , Vol. 10 , N. 1 , P. 181-198 text Publication info:eu-repo/semantics/article 2014 ftarchimer https://doi.org/10.5194/cp-10-181-2014 2021-09-23T20:26:50Z A marine sediment core (JM09-KA11-GC) from the Kveithola Trough at the western Barents Sea margin has been investigated in order to reconstruct sub-surface temperatures and sea ice distribution at a sub-centennial resolution throughout the Holocene. The relationship between past variability of Atlantic water inflow and sea ice distribution has been established by measurement of planktic foraminifera, stable isotopes and biomarkers from sea ice diatoms and phytoplankton. Throughout the early Holocene (11 900-7300 cal yr BP), the foraminiferal fauna is dominated by the polar species Neogloboquadrina pachyderma (sinistral) and the biomarkers show an influence of seasonal sea ice. Between 10 900 and 10 700 cal yr BP, a clear cooling is shown both by fauna and stable isotope data corresponding to the so-called Pre-boreal Oscillation. After 7300 cal yr BP, the sub-polar Turborotalita quinqueloba becomes the most frequent species, reflecting a stable Atlantic water inflow. Sub-surface temperatures reach 6 degrees C and biomarker data indicate mainly ice-free conditions. During the last 1100 cal yr BP, biomarker abundances and distributions show the reappearance of low-frequency seasonal sea ice and the planktic fauna show a reduced salinity in the sub-surface water. No apparent temperature decrease is observed during this interval, but the rapidly fluctuating fauna and biomarker distributions indicate more unstable conditions. Article in Journal/Newspaper Barents Sea Neogloboquadrina pachyderma Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Barents Sea Climate of the Past 10 1 181 198 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
A marine sediment core (JM09-KA11-GC) from the Kveithola Trough at the western Barents Sea margin has been investigated in order to reconstruct sub-surface temperatures and sea ice distribution at a sub-centennial resolution throughout the Holocene. The relationship between past variability of Atlantic water inflow and sea ice distribution has been established by measurement of planktic foraminifera, stable isotopes and biomarkers from sea ice diatoms and phytoplankton. Throughout the early Holocene (11 900-7300 cal yr BP), the foraminiferal fauna is dominated by the polar species Neogloboquadrina pachyderma (sinistral) and the biomarkers show an influence of seasonal sea ice. Between 10 900 and 10 700 cal yr BP, a clear cooling is shown both by fauna and stable isotope data corresponding to the so-called Pre-boreal Oscillation. After 7300 cal yr BP, the sub-polar Turborotalita quinqueloba becomes the most frequent species, reflecting a stable Atlantic water inflow. Sub-surface temperatures reach 6 degrees C and biomarker data indicate mainly ice-free conditions. During the last 1100 cal yr BP, biomarker abundances and distributions show the reappearance of low-frequency seasonal sea ice and the planktic fauna show a reduced salinity in the sub-surface water. No apparent temperature decrease is observed during this interval, but the rapidly fluctuating fauna and biomarker distributions indicate more unstable conditions. |
format |
Article in Journal/Newspaper |
author |
Berben, S. M. P. Husum, K. Cabedo-sanz, P. Belt, S. T. |
spellingShingle |
Berben, S. M. P. Husum, K. Cabedo-sanz, P. Belt, S. T. Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea |
author_facet |
Berben, S. M. P. Husum, K. Cabedo-sanz, P. Belt, S. T. |
author_sort |
Berben, S. M. P. |
title |
Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea |
title_short |
Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea |
title_full |
Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea |
title_fullStr |
Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea |
title_full_unstemmed |
Holocene sub-centennial evolution of Atlantic water inflow and sea ice distribution in the western Barents Sea |
title_sort |
holocene sub-centennial evolution of atlantic water inflow and sea ice distribution in the western barents sea |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2014 |
url |
https://archimer.ifremer.fr/doc/00291/40232/38685.pdf https://doi.org/10.5194/cp-10-181-2014 https://archimer.ifremer.fr/doc/00291/40232/ |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Neogloboquadrina pachyderma Sea ice |
genre_facet |
Barents Sea Neogloboquadrina pachyderma Sea ice |
op_source |
Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2014-01-23 , Vol. 10 , N. 1 , P. 181-198 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/238111/EU//CASE https://archimer.ifremer.fr/doc/00291/40232/38685.pdf doi:10.5194/cp-10-181-2014 https://archimer.ifremer.fr/doc/00291/40232/ |
op_rights |
Author(s) 2014. CC Attribution 3.0 License info:eu-repo/semantics/openAccess restricted use |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/cp-10-181-2014 |
container_title |
Climate of the Past |
container_volume |
10 |
container_issue |
1 |
container_start_page |
181 |
op_container_end_page |
198 |
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1766369991579402240 |