The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene
Holocene sea ice and palaeoenvironmental conditions were reconstructed using three sediment cores from northeastern Baffin Bay (GeoB19948-3 and GeoB19927-3) and the Labrador Sea (GeoB19905-1) along a north-south transect based on sea ice IP25 and open-water phytoplankton biomarkers (brassicasterol,...
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2021
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.939206 https://doi.org/10.1594/PANGAEA.939206 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.939206 2024-09-15T17:56:54+00:00 The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene Saini, Jeetendra Stein, Ruediger Fahl, Kirsten Weiser, Jens Hebbeln, Dierk Madaj, Lina MEDIAN LATITUDE: 70.064830 * MEDIAN LONGITUDE: -58.552250 * SOUTH-BOUND LATITUDE: 64.361330 * WEST-BOUND LONGITUDE: -64.142830 * NORTH-BOUND LATITUDE: 75.768330 * EAST-BOUND LONGITUDE: -52.961670 * DATE/TIME START: 2015-07-01T09:19:00 * DATE/TIME END: 2015-07-15T02:06:00 2021 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.939206 https://doi.org/10.1594/PANGAEA.939206 en eng PANGAEA Saini, Jeetendra; Stein, Ruediger; Fahl, Kirsten; Weiser, Jens; Hebbeln, Dierk; Madaj, Lina (2022): Holocene variability in sea‐ice conditions in the eastern Baffin Bay‐Labrador Sea – A north–south biomarker transect study. Boreas, https://doi.org/10.1111/bor.12583 https://doi.pangaea.de/10.1594/PANGAEA.939206 https://doi.org/10.1594/PANGAEA.939206 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess ArcTrain AWI_Paleo Baffin Bay HBI III Holocene IP25 Labrador Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PIP25 index Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic Sea ice dataset publication series 2021 ftpangaea https://doi.org/10.1594/PANGAEA.93920610.1111/bor.12583 2024-07-24T02:31:21Z Holocene sea ice and palaeoenvironmental conditions were reconstructed using three sediment cores from northeastern Baffin Bay (GeoB19948-3 and GeoB19927-3) and the Labrador Sea (GeoB19905-1) along a north-south transect based on sea ice IP25 and open-water phytoplankton biomarkers (brassicasterol, dinosterol and HBI III). In Baffin Bay, sea-surface conditions in the Early Holocene were characterized by extended (early) spring sea ice cover (SIC) prior to 7.6 ka BP. The conditions in the NE Labrador Sea, however, remained predominantly ice-free in spring/autumn due to the enhanced influx of Atlantic Water (i.e., WGC; West Greenland Current) from 11.5 to ~9.1 ka BP, succeeded by a period of continued (spring-autumn) ice-free conditions from 9.1 to 7.6 ka BP corresponding to the onset of Holocene Thermal Maximum (HTM)-like conditions. A transition towards reoccurring ice-edge and significantly reduced SIC conditions in Baffin Bay is evident in the Mid Holocene (~7.6-3 ka BP) probably caused by the variations in the WGC influence associated with the ice melting and can be characterized as HTM-like conditions. These HTM-like conditions are predominantly recorded in the NE Labrador Sea area shown by (spring-autumn) ice-free conditions from 5.9-3 ka BP. In the Late Holocene (last ~3 ka), our combined proxy records from eastern Baffin Bay indicate low in-situ ice-algae production, however, enhanced multi-year (drifted) sea ice in this area was possibly attributed to the increased influx of Polar Water mass influx and may correlate with the Neoglacial cooling. The conditions in the NE Labrador Sea during the last 3 ka, however, continued to remain (spring-autumn) ice-free with decreased biological carbonate production probably linked to decreased WGC strength and/or increased Arctic Water influx, coinciding with the Neoglacial cooling. Other/Unknown Material Baffin Bay Baffin Bay Baffin Climate change Greenland ice algae Labrador Sea North Atlantic Phytoplankton Sea ice PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-64.142830,-52.961670,75.768330,64.361330) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ArcTrain AWI_Paleo Baffin Bay HBI III Holocene IP25 Labrador Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PIP25 index Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic Sea ice |
spellingShingle |
ArcTrain AWI_Paleo Baffin Bay HBI III Holocene IP25 Labrador Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PIP25 index Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic Sea ice Saini, Jeetendra Stein, Ruediger Fahl, Kirsten Weiser, Jens Hebbeln, Dierk Madaj, Lina The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene |
topic_facet |
ArcTrain AWI_Paleo Baffin Bay HBI III Holocene IP25 Labrador Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PIP25 index Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic Sea ice |
description |
Holocene sea ice and palaeoenvironmental conditions were reconstructed using three sediment cores from northeastern Baffin Bay (GeoB19948-3 and GeoB19927-3) and the Labrador Sea (GeoB19905-1) along a north-south transect based on sea ice IP25 and open-water phytoplankton biomarkers (brassicasterol, dinosterol and HBI III). In Baffin Bay, sea-surface conditions in the Early Holocene were characterized by extended (early) spring sea ice cover (SIC) prior to 7.6 ka BP. The conditions in the NE Labrador Sea, however, remained predominantly ice-free in spring/autumn due to the enhanced influx of Atlantic Water (i.e., WGC; West Greenland Current) from 11.5 to ~9.1 ka BP, succeeded by a period of continued (spring-autumn) ice-free conditions from 9.1 to 7.6 ka BP corresponding to the onset of Holocene Thermal Maximum (HTM)-like conditions. A transition towards reoccurring ice-edge and significantly reduced SIC conditions in Baffin Bay is evident in the Mid Holocene (~7.6-3 ka BP) probably caused by the variations in the WGC influence associated with the ice melting and can be characterized as HTM-like conditions. These HTM-like conditions are predominantly recorded in the NE Labrador Sea area shown by (spring-autumn) ice-free conditions from 5.9-3 ka BP. In the Late Holocene (last ~3 ka), our combined proxy records from eastern Baffin Bay indicate low in-situ ice-algae production, however, enhanced multi-year (drifted) sea ice in this area was possibly attributed to the increased influx of Polar Water mass influx and may correlate with the Neoglacial cooling. The conditions in the NE Labrador Sea during the last 3 ka, however, continued to remain (spring-autumn) ice-free with decreased biological carbonate production probably linked to decreased WGC strength and/or increased Arctic Water influx, coinciding with the Neoglacial cooling. |
format |
Other/Unknown Material |
author |
Saini, Jeetendra Stein, Ruediger Fahl, Kirsten Weiser, Jens Hebbeln, Dierk Madaj, Lina |
author_facet |
Saini, Jeetendra Stein, Ruediger Fahl, Kirsten Weiser, Jens Hebbeln, Dierk Madaj, Lina |
author_sort |
Saini, Jeetendra |
title |
The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene |
title_short |
The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene |
title_full |
The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene |
title_fullStr |
The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene |
title_full_unstemmed |
The biomarker and bulk parameters of two sediment cores along Baffin Bay-Labrador Sea north-south transect during the Holocene |
title_sort |
biomarker and bulk parameters of two sediment cores along baffin bay-labrador sea north-south transect during the holocene |
publisher |
PANGAEA |
publishDate |
2021 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.939206 https://doi.org/10.1594/PANGAEA.939206 |
op_coverage |
MEDIAN LATITUDE: 70.064830 * MEDIAN LONGITUDE: -58.552250 * SOUTH-BOUND LATITUDE: 64.361330 * WEST-BOUND LONGITUDE: -64.142830 * NORTH-BOUND LATITUDE: 75.768330 * EAST-BOUND LONGITUDE: -52.961670 * DATE/TIME START: 2015-07-01T09:19:00 * DATE/TIME END: 2015-07-15T02:06:00 |
long_lat |
ENVELOPE(-64.142830,-52.961670,75.768330,64.361330) |
genre |
Baffin Bay Baffin Bay Baffin Climate change Greenland ice algae Labrador Sea North Atlantic Phytoplankton Sea ice |
genre_facet |
Baffin Bay Baffin Bay Baffin Climate change Greenland ice algae Labrador Sea North Atlantic Phytoplankton Sea ice |
op_relation |
Saini, Jeetendra; Stein, Ruediger; Fahl, Kirsten; Weiser, Jens; Hebbeln, Dierk; Madaj, Lina (2022): Holocene variability in sea‐ice conditions in the eastern Baffin Bay‐Labrador Sea – A north–south biomarker transect study. Boreas, https://doi.org/10.1111/bor.12583 https://doi.pangaea.de/10.1594/PANGAEA.939206 https://doi.org/10.1594/PANGAEA.939206 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.93920610.1111/bor.12583 |
_version_ |
1810433081549520896 |