High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years
Due to its strong influence on heat and moisture exchange between the ocean and the atmosphere, sea ice is an essential component of the global climate system. In the context of its alarming decrease in terms of concentration, thickness and duration, understanding the processes controlling sea-ice v...
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ftoceanrep:oai:oceanrep.geomar.de:32147 2023-05-15T15:43:22+02:00 High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer 2016-04 text https://oceanrep.geomar.de/id/eprint/32147/ https://oceanrep.geomar.de/id/eprint/32147/1/Meheust.pdf https://oceanrep.geomar.de/id/eprint/32147/2/Meheust_Suppl.pdf https://doi.org/10.1007/s00367-015-0432-4 en eng Springer https://oceanrep.geomar.de/id/eprint/32147/1/Meheust.pdf https://oceanrep.geomar.de/id/eprint/32147/2/Meheust_Suppl.pdf Méheust, M., Stein, R., Fahl, K., Max, L. and Riethdorf, J. R. (2016) High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years. Geo-Marine Letters, 36 (2). pp. 101-111. DOI 10.1007/s00367-015-0432-4 <https://doi.org/10.1007/s00367-015-0432-4>. doi:10.1007/s00367-015-0432-4 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1007/s00367-015-0432-4 2023-04-07T15:25:02Z Due to its strong influence on heat and moisture exchange between the ocean and the atmosphere, sea ice is an essential component of the global climate system. In the context of its alarming decrease in terms of concentration, thickness and duration, understanding the processes controlling sea-ice variability and reconstructing paleo-sea-ice extent in polar regions have become of great interest for the scientific community. In this study, for the first time, IP25, a recently developed biomarker sea-ice proxy, was used for a high-resolution reconstruction of the sea-ice extent and its variability in the western North Pacific and western Bering Sea during the past 18,000 years. To identify mechanisms controlling the sea-ice variability, IP25 data were associated with published sea-surface temperature as well as diatom and biogenic opal data. The results indicate that a seasonal sea-ice cover existed during cold periods (Heinrich Stadial 1 and Younger Dryas), whereas during warmer intervals (Bolling-Allerod and Holocene) reduced sea ice or ice-free conditions prevailed in the study area. The variability in sea-ice extent seems to be linked to climate anomalies and sea-level changes controlling the oceanographic circulation between the subarctic Pacific and the Bering Sea, especially the Alaskan Stream injection though the Aleutian passes. Article in Journal/Newspaper Bering Sea Sea ice Subarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Bering Sea Pacific Geo-Marine Letters 36 2 101 111 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Due to its strong influence on heat and moisture exchange between the ocean and the atmosphere, sea ice is an essential component of the global climate system. In the context of its alarming decrease in terms of concentration, thickness and duration, understanding the processes controlling sea-ice variability and reconstructing paleo-sea-ice extent in polar regions have become of great interest for the scientific community. In this study, for the first time, IP25, a recently developed biomarker sea-ice proxy, was used for a high-resolution reconstruction of the sea-ice extent and its variability in the western North Pacific and western Bering Sea during the past 18,000 years. To identify mechanisms controlling the sea-ice variability, IP25 data were associated with published sea-surface temperature as well as diatom and biogenic opal data. The results indicate that a seasonal sea-ice cover existed during cold periods (Heinrich Stadial 1 and Younger Dryas), whereas during warmer intervals (Bolling-Allerod and Holocene) reduced sea ice or ice-free conditions prevailed in the study area. The variability in sea-ice extent seems to be linked to climate anomalies and sea-level changes controlling the oceanographic circulation between the subarctic Pacific and the Bering Sea, especially the Alaskan Stream injection though the Aleutian passes. |
format |
Article in Journal/Newspaper |
author |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer |
spellingShingle |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years |
author_facet |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer |
author_sort |
Méheust, Marie |
title |
High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years |
title_short |
High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years |
title_full |
High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years |
title_fullStr |
High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years |
title_full_unstemmed |
High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years |
title_sort |
high-resolution ip25-based reconstruction of sea-ice variability in the western north pacific and bering sea during the past 18,000 years |
publisher |
Springer |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/32147/ https://oceanrep.geomar.de/id/eprint/32147/1/Meheust.pdf https://oceanrep.geomar.de/id/eprint/32147/2/Meheust_Suppl.pdf https://doi.org/10.1007/s00367-015-0432-4 |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea Sea ice Subarctic |
genre_facet |
Bering Sea Sea ice Subarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/32147/1/Meheust.pdf https://oceanrep.geomar.de/id/eprint/32147/2/Meheust_Suppl.pdf Méheust, M., Stein, R., Fahl, K., Max, L. and Riethdorf, J. R. (2016) High-resolution IP25-based reconstruction of sea-ice variability in the western North Pacific and Bering Sea during the past 18,000 years. Geo-Marine Letters, 36 (2). pp. 101-111. DOI 10.1007/s00367-015-0432-4 <https://doi.org/10.1007/s00367-015-0432-4>. doi:10.1007/s00367-015-0432-4 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00367-015-0432-4 |
container_title |
Geo-Marine Letters |
container_volume |
36 |
container_issue |
2 |
container_start_page |
101 |
op_container_end_page |
111 |
_version_ |
1766377460089225216 |