IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1)
This study focusses on the last glacial-deglacial-Holocene spatial and temporal variability in sea-ice cover based on organic geochemical analyses of marine sediment cores from the subarctic Pacific and the Bering Sea. By means of the sea ice proxy "IP25/PIP25" and phytoplankton-derived bi...
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ftdatacite:10.1594/pangaea.887833 2023-05-15T14:56:39+02:00 IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) Méheust, Marie Stein, Ruediger Fahl, Kirsten Gersonde, Rainer 2018 application/zip https://dx.doi.org/10.1594/pangaea.887833 https://doi.pangaea.de/10.1594/PANGAEA.887833 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1007/s41063-018-0043-1 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Collection article Supplementary Collection of Datasets 2018 ftdatacite https://doi.org/10.1594/pangaea.887833 https://doi.org/10.1007/s41063-018-0043-1 2021-11-05T12:55:41Z This study focusses on the last glacial-deglacial-Holocene spatial and temporal variability in sea-ice cover based on organic geochemical analyses of marine sediment cores from the subarctic Pacific and the Bering Sea. By means of the sea ice proxy "IP25/PIP25" and phytoplankton-derived biomarkers (specific sterols and alkenones), we reconstruct the spring sea-ice conditions, (summer) sea-surface temperature (SST) and primary productivity, respectively. The large variability of sea ice was explained by a combination of local and global factors, such as solar insolation, global climate anomalies and sea-level changes controlling the oceanographic circulation and water mass exchange between the subarctic Pacific and the Bering Sea. During the Last Glacial Maximum, extensive sea-ice cover prevailed over large part of the subarctic Pacific and the Bering Sea. The following deglaciation is characterized by a rapid sea-ice advance and retreat. During cold periods (Heinrich Stadial 1 and Younger Dryas) seasonal sea-ice cover generally coincided with low alkenone SSTs and low primary productivity. Conversely, during warmer intervals (Bølling/Allerød, Early Holocene) reduced sea ice or ice-free conditions prevailed in the study area. In the northern Bering Sea continental shelf a late-Early/Mid Holocene shift to marginal sea-ice conditions is in line with the simultaneous wide-spread sea-ice recovery observed in the other Arctic marginal seas and is likely initiated by the lower Northern Hemisphere insolation and surface-water cooling. Article in Journal/Newspaper Arctic Bering Sea Phytoplankton Sea ice Subarctic DataCite Metadata Store (German National Library of Science and Technology) Arctic Bering Sea Pacific |
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collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
spellingShingle |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo Méheust, Marie Stein, Ruediger Fahl, Kirsten Gersonde, Rainer IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) |
topic_facet |
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo |
description |
This study focusses on the last glacial-deglacial-Holocene spatial and temporal variability in sea-ice cover based on organic geochemical analyses of marine sediment cores from the subarctic Pacific and the Bering Sea. By means of the sea ice proxy "IP25/PIP25" and phytoplankton-derived biomarkers (specific sterols and alkenones), we reconstruct the spring sea-ice conditions, (summer) sea-surface temperature (SST) and primary productivity, respectively. The large variability of sea ice was explained by a combination of local and global factors, such as solar insolation, global climate anomalies and sea-level changes controlling the oceanographic circulation and water mass exchange between the subarctic Pacific and the Bering Sea. During the Last Glacial Maximum, extensive sea-ice cover prevailed over large part of the subarctic Pacific and the Bering Sea. The following deglaciation is characterized by a rapid sea-ice advance and retreat. During cold periods (Heinrich Stadial 1 and Younger Dryas) seasonal sea-ice cover generally coincided with low alkenone SSTs and low primary productivity. Conversely, during warmer intervals (Bølling/Allerød, Early Holocene) reduced sea ice or ice-free conditions prevailed in the study area. In the northern Bering Sea continental shelf a late-Early/Mid Holocene shift to marginal sea-ice conditions is in line with the simultaneous wide-spread sea-ice recovery observed in the other Arctic marginal seas and is likely initiated by the lower Northern Hemisphere insolation and surface-water cooling. |
format |
Article in Journal/Newspaper |
author |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Gersonde, Rainer |
author_facet |
Méheust, Marie Stein, Ruediger Fahl, Kirsten Gersonde, Rainer |
author_sort |
Méheust, Marie |
title |
IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) |
title_short |
IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) |
title_full |
IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) |
title_fullStr |
IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) |
title_full_unstemmed |
IP25 and Uk'37 proxy records from sediment cores from the subarctic Pacific and the Bering Sea, supplement to: Méheust, Marie; Stein, Ruediger; Fahl, Kirsten; Gersonde, Rainer (2018): Sea-ice variability in the subarctic North Pacific and adjacent Bering Sea during the past 25 ka: new insights from IP25 and Uk′37 proxy records. In: O'Cofaigh, C., Kirchner, N., Federov, G., Noormets, R. and de Vernal, A. (Eds.), Arctic environmental change beyond instrumental records, Special PAST Gateways issue of arktos, arktos - The Journal of Arctic Geosciences, 4(1) |
title_sort |
ip25 and uk'37 proxy records from sediment cores from the subarctic pacific and the bering sea, supplement to: méheust, marie; stein, ruediger; fahl, kirsten; gersonde, rainer (2018): sea-ice variability in the subarctic north pacific and adjacent bering sea during the past 25 ka: new insights from ip25 and uk′37 proxy records. in: o'cofaigh, c., kirchner, n., federov, g., noormets, r. and de vernal, a. (eds.), arctic environmental change beyond instrumental records, special past gateways issue of arktos, arktos - the journal of arctic geosciences, 4(1) |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2018 |
url |
https://dx.doi.org/10.1594/pangaea.887833 https://doi.pangaea.de/10.1594/PANGAEA.887833 |
geographic |
Arctic Bering Sea Pacific |
geographic_facet |
Arctic Bering Sea Pacific |
genre |
Arctic Bering Sea Phytoplankton Sea ice Subarctic |
genre_facet |
Arctic Bering Sea Phytoplankton Sea ice Subarctic |
op_relation |
https://dx.doi.org/10.1007/s41063-018-0043-1 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.887833 https://doi.org/10.1007/s41063-018-0043-1 |
_version_ |
1766328738319958016 |