High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea
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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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.855454 2023-05-15T15:43:25+02:00 High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer MEDIAN LATITUDE: 56.517884 * MEDIAN LONGITUDE: 166.687831 * SOUTH-BOUND LATITUDE: 53.992660 * WEST-BOUND LONGITUDE: 162.375830 * NORTH-BOUND LATITUDE: 59.230660 * EAST-BOUND LONGITUDE: 170.698833 * DATE/TIME START: 2009-09-09T04:49:00 * DATE/TIME END: 2009-09-25T03:17:00 2015-12-01 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.855454 https://doi.org/10.1594/PANGAEA.855454 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.855454 https://doi.org/10.1594/PANGAEA.855454 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Max, Lars; Riethdorf, Jan-Rainer (2015): 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, https://doi.org/10.1007/s00367-015-0432-4 AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.855454 https://doi.org/10.1007/s00367-015-0432-4 2023-01-20T07:33:37Z 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 (Bølling-Allerød 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. Dataset Bering Sea Sea ice Subarctic PANGAEA - Data Publisher for Earth & Environmental Science Bering Sea Pacific ENVELOPE(162.375830,170.698833,59.230660,53.992660) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
spellingShingle |
AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea |
topic_facet |
AWI_Paleo Paleoenvironmental Reconstructions from Marine Sediments @ AWI |
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 (Bølling-Allerød 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 |
Dataset |
author |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer |
author_facet |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Max, Lars Riethdorf, Jan-Rainer |
author_sort |
Méheust, Marie |
title |
High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea |
title_short |
High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea |
title_full |
High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea |
title_fullStr |
High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea |
title_full_unstemmed |
High-resolution IP25 of three sediment cores in the western North Pacific and Bering Sea |
title_sort |
high-resolution ip25 of three sediment cores in the western north pacific and bering sea |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.855454 https://doi.org/10.1594/PANGAEA.855454 |
op_coverage |
MEDIAN LATITUDE: 56.517884 * MEDIAN LONGITUDE: 166.687831 * SOUTH-BOUND LATITUDE: 53.992660 * WEST-BOUND LONGITUDE: 162.375830 * NORTH-BOUND LATITUDE: 59.230660 * EAST-BOUND LONGITUDE: 170.698833 * DATE/TIME START: 2009-09-09T04:49:00 * DATE/TIME END: 2009-09-25T03:17:00 |
long_lat |
ENVELOPE(162.375830,170.698833,59.230660,53.992660) |
geographic |
Bering Sea Pacific |
geographic_facet |
Bering Sea Pacific |
genre |
Bering Sea Sea ice Subarctic |
genre_facet |
Bering Sea Sea ice Subarctic |
op_source |
Supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Max, Lars; Riethdorf, Jan-Rainer (2015): 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, https://doi.org/10.1007/s00367-015-0432-4 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.855454 https://doi.org/10.1594/PANGAEA.855454 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.855454 https://doi.org/10.1007/s00367-015-0432-4 |
_version_ |
1766377541919047680 |