Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland
A new centennial scale benthic foraminiferal record of late Holocene climate variability and oceanographic changes off West Greenland (Disko Bugt) highlights substantial subsurface water mass changes (e.g. temperature and salinity) of the West Greenland Current (WGC) over the past 3.6 ka BP. Benthic...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.898287 2023-05-15T14:59:10+02:00 Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland Perner, Kerstin Moros, Matthias Lloyd, Jerry M Kuijpers, Antoon Telford, Richard J Harff, Jan MEDIAN LATITUDE: 68.647750 * MEDIAN LONGITUDE: -53.824825 * SOUTH-BOUND LATITUDE: 68.647680 * WEST-BOUND LONGITUDE: -53.824880 * NORTH-BOUND LATITUDE: 68.647820 * EAST-BOUND LONGITUDE: -53.824770 * MINIMUM ELEVATION: -856.0 m * MAXIMUM ELEVATION: -852.0 m 2019-02-12 text/tab-separated-values, 1938 data points https://doi.pangaea.de/10.1594/PANGAEA.898287 https://doi.org/10.1594/PANGAEA.898287 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.898287 https://doi.org/10.1594/PANGAEA.898287 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Perner, Kerstin; Moros, Matthias; Lloyd, Jerry M; Kuijpers, Antoon; Telford, Richard J; Harff, Jan (2011): Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland. Quaternary Science Reviews, 30(19-20), 2815-2826, https://doi.org/10.1016/j.quascirev.2011.06.018 Age Baffin Bay Benthic foraminifera Dendrochronological crossdating East Greenland Current Event label GC Gravity corer GREENClim Irminger Islandiella norcrossi Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer NAO Nonionellina labradorica Percentage Ratio West Greenland Current Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.898287 https://doi.org/10.1016/j.quascirev.2011.06.018 2023-01-20T09:11:59Z A new centennial scale benthic foraminiferal record of late Holocene climate variability and oceanographic changes off West Greenland (Disko Bugt) highlights substantial subsurface water mass changes (e.g. temperature and salinity) of the West Greenland Current (WGC) over the past 3.6 ka BP. Benthic foraminifera reveal a long-term late Holocene cooling trend, which may be attributed to increased advection of cold, low-salinity water masses derived from the East Greenland Current (EGC). Cooling becomes most pronounced from c. 1.7 ka BP onwards. At this point the calcareous Atlantic benthic foraminiferal fauna decrease significantly and is replaced by an agglutinated Arctic fauna. Superimposed on this cooling trend, centennial scale variability in the WGC reveals a marked cold phase at c. 2.5 ka BP, which may correspond to the 2.7 ka BP cooling-event recorded in marine and terrestrial archives elsewhere in the North Atlantic region. A warm phase recognized at c. 1.8 ka BP is likely to correspond to the 'Roman Warm Period' and represents the warmest bottom water conditions. During the time period of the 'Medieval Climate Anomaly' we observe only a slight warming of the WGC. A progressively more dominant cold water contribution from the EGC on the WGC is documented by the prominent rise in abundance of agglutinated Arctic water species from 0.9 ka BP onwards. This cooling event culminates at c. 0.3 ka BP and represents the coldest episode of the 'Little Ice Age'. Gradually increased influence of cold, low-salinity water masses derived from the EGC may be linked to enhanced advection of Polar and Arctic water by the EGC. These changes are possibly associated with a reported shift in the large-scale North Atlantic Oscillation atmospheric circulation pattern towards a more frequent negative North Atlantic Oscillation mode during the late Holocene. Dataset Arctic Baffin Bay Baffin Bay Baffin Disko bugt East Greenland east greenland current Foraminifera* Greenland North Atlantic North Atlantic oscillation PANGAEA - Data Publisher for Earth & Environmental Science Arctic Baffin Bay Greenland ENVELOPE(-53.824880,-53.824770,68.647820,68.647680) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age Baffin Bay Benthic foraminifera Dendrochronological crossdating East Greenland Current Event label GC Gravity corer GREENClim Irminger Islandiella norcrossi Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer NAO Nonionellina labradorica Percentage Ratio West Greenland Current |
spellingShingle |
Age Baffin Bay Benthic foraminifera Dendrochronological crossdating East Greenland Current Event label GC Gravity corer GREENClim Irminger Islandiella norcrossi Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer NAO Nonionellina labradorica Percentage Ratio West Greenland Current Perner, Kerstin Moros, Matthias Lloyd, Jerry M Kuijpers, Antoon Telford, Richard J Harff, Jan Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland |
topic_facet |
Age Baffin Bay Benthic foraminifera Dendrochronological crossdating East Greenland Current Event label GC Gravity corer GREENClim Irminger Islandiella norcrossi Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer NAO Nonionellina labradorica Percentage Ratio West Greenland Current |
description |
A new centennial scale benthic foraminiferal record of late Holocene climate variability and oceanographic changes off West Greenland (Disko Bugt) highlights substantial subsurface water mass changes (e.g. temperature and salinity) of the West Greenland Current (WGC) over the past 3.6 ka BP. Benthic foraminifera reveal a long-term late Holocene cooling trend, which may be attributed to increased advection of cold, low-salinity water masses derived from the East Greenland Current (EGC). Cooling becomes most pronounced from c. 1.7 ka BP onwards. At this point the calcareous Atlantic benthic foraminiferal fauna decrease significantly and is replaced by an agglutinated Arctic fauna. Superimposed on this cooling trend, centennial scale variability in the WGC reveals a marked cold phase at c. 2.5 ka BP, which may correspond to the 2.7 ka BP cooling-event recorded in marine and terrestrial archives elsewhere in the North Atlantic region. A warm phase recognized at c. 1.8 ka BP is likely to correspond to the 'Roman Warm Period' and represents the warmest bottom water conditions. During the time period of the 'Medieval Climate Anomaly' we observe only a slight warming of the WGC. A progressively more dominant cold water contribution from the EGC on the WGC is documented by the prominent rise in abundance of agglutinated Arctic water species from 0.9 ka BP onwards. This cooling event culminates at c. 0.3 ka BP and represents the coldest episode of the 'Little Ice Age'. Gradually increased influence of cold, low-salinity water masses derived from the EGC may be linked to enhanced advection of Polar and Arctic water by the EGC. These changes are possibly associated with a reported shift in the large-scale North Atlantic Oscillation atmospheric circulation pattern towards a more frequent negative North Atlantic Oscillation mode during the late Holocene. |
format |
Dataset |
author |
Perner, Kerstin Moros, Matthias Lloyd, Jerry M Kuijpers, Antoon Telford, Richard J Harff, Jan |
author_facet |
Perner, Kerstin Moros, Matthias Lloyd, Jerry M Kuijpers, Antoon Telford, Richard J Harff, Jan |
author_sort |
Perner, Kerstin |
title |
Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland |
title_short |
Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland |
title_full |
Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland |
title_fullStr |
Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland |
title_full_unstemmed |
Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland |
title_sort |
centennial scale benthic foraminiferal record of late holocene oceanographic variability in disko bugt, west greenland |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.898287 https://doi.org/10.1594/PANGAEA.898287 |
op_coverage |
MEDIAN LATITUDE: 68.647750 * MEDIAN LONGITUDE: -53.824825 * SOUTH-BOUND LATITUDE: 68.647680 * WEST-BOUND LONGITUDE: -53.824880 * NORTH-BOUND LATITUDE: 68.647820 * EAST-BOUND LONGITUDE: -53.824770 * MINIMUM ELEVATION: -856.0 m * MAXIMUM ELEVATION: -852.0 m |
long_lat |
ENVELOPE(-53.824880,-53.824770,68.647820,68.647680) |
geographic |
Arctic Baffin Bay Greenland |
geographic_facet |
Arctic Baffin Bay Greenland |
genre |
Arctic Baffin Bay Baffin Bay Baffin Disko bugt East Greenland east greenland current Foraminifera* Greenland North Atlantic North Atlantic oscillation |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Disko bugt East Greenland east greenland current Foraminifera* Greenland North Atlantic North Atlantic oscillation |
op_source |
Supplement to: Perner, Kerstin; Moros, Matthias; Lloyd, Jerry M; Kuijpers, Antoon; Telford, Richard J; Harff, Jan (2011): Centennial scale benthic foraminiferal record of late Holocene oceanographic variability in Disko Bugt, West Greenland. Quaternary Science Reviews, 30(19-20), 2815-2826, https://doi.org/10.1016/j.quascirev.2011.06.018 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.898287 https://doi.org/10.1594/PANGAEA.898287 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.898287 https://doi.org/10.1016/j.quascirev.2011.06.018 |
_version_ |
1766331294152654848 |