Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland
Palynological analyses of sediment core MSM343310 from Disko Bugt (68°38.861' N, 53°49.493' W) document decadal‐ to centennial‐scale variability of sea surface conditions during the last ~3,600 years. Dinocyst fluxes (>10⁴ cysts/cm² yr⁻¹) indicate a very high productivity. Dinocyst asse...
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Format: | Dataset |
Language: | English |
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PANGAEA
2019
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.898918 https://doi.org/10.1594/PANGAEA.898918 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.898918 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Age Arctic climate change Arctic sea ice reconstructions Baffin Bay Calculated Dinocyst database Event label GC Gravity corer Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer Paleoproductivity as carbon Sea ice cover duration Sea surface salinity summer winter Sea surface temperature West Greenland |
spellingShingle |
Age Arctic climate change Arctic sea ice reconstructions Baffin Bay Calculated Dinocyst database Event label GC Gravity corer Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer Paleoproductivity as carbon Sea ice cover duration Sea surface salinity summer winter Sea surface temperature West Greenland Allan, Estelle de Vernal, Anne Knudsen, Mads Faurschou Hillaire-Marcel, Claude Moros, Matthias Ribeiro, Sofia Ouellet‐Bernier, Marie‐Michèle Seidenkrantz, Marit-Solveig Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland |
topic_facet |
Age Arctic climate change Arctic sea ice reconstructions Baffin Bay Calculated Dinocyst database Event label GC Gravity corer Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer Paleoproductivity as carbon Sea ice cover duration Sea surface salinity summer winter Sea surface temperature West Greenland |
description |
Palynological analyses of sediment core MSM343310 from Disko Bugt (68°38.861' N, 53°49.493' W) document decadal‐ to centennial‐scale variability of sea surface conditions during the last ~3,600 years. Dinocyst fluxes (>10⁴ cysts/cm² yr⁻¹) indicate a very high productivity. Dinocyst assemblages dominated by Islandinium minutum, Brigantedinium spp., Islandinium? cezare, and the cyst of Pentapharsodinium dalei suggest low surface salinity and marked shifts in summer sea surface temperature. The application of the modern analog technique to dinocyst assemblages, using an updated reference data set with new sites from the West Greenland margin, led to reconstruct decadal‐centennial‐scale variations in sea surface salinity and temperature, in phase with the δ18O variations in the Camp Century ice core. At ~1.5 ka BP, the seasonal sea ice cover records an important regime change, from winter‐only sea ice to more unstable conditions marked by successive cooling pulses with sea ice cover of up to 8 months/yr. The data suggest a close relationship between hydrographic conditions and regional climate over Greenland. Our record shows variations with a mean 200 years periodicity until ~2 ka BP, which supports the hypothesis of climate variations driven by solar variability. After 1.5 ka BP, our data show a variability characterized by a 60-70 year periodicity, which suggests linkages with the Atlantic Multidecadal Oscillation and southwestward migration of the atmospheric polar front. The most recent part of the record, from ~1900 CE to 2007 CE, is characterized by assemblages reflecting warmer surface conditions and reduced sea ice cover. |
format |
Dataset |
author |
Allan, Estelle de Vernal, Anne Knudsen, Mads Faurschou Hillaire-Marcel, Claude Moros, Matthias Ribeiro, Sofia Ouellet‐Bernier, Marie‐Michèle Seidenkrantz, Marit-Solveig |
author_facet |
Allan, Estelle de Vernal, Anne Knudsen, Mads Faurschou Hillaire-Marcel, Claude Moros, Matthias Ribeiro, Sofia Ouellet‐Bernier, Marie‐Michèle Seidenkrantz, Marit-Solveig |
author_sort |
Allan, Estelle |
title |
Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland |
title_short |
Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland |
title_full |
Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland |
title_fullStr |
Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland |
title_full_unstemmed |
Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland |
title_sort |
reconstructions of sea-surface parameters from sediment core msm05/3_343310 from disko bugt, west greenland |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.898918 https://doi.org/10.1594/PANGAEA.898918 |
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 Climate change Disko bugt Greenland ice core Sea ice |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Climate change Disko bugt Greenland ice core Sea ice |
op_source |
Supplement to: Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2018): Late Holocene sea surface instabilities in the Disko Bugt Area, West Greenland, in phase with δ18O oscillations at Camp Century. Paleoceanography and Paleoclimatology, 33(2), 227-243, https://doi.org/10.1002/2017PA003289 |
op_relation |
Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Dinocyst assemblages in sediment core MSM05/3_343310 from Disko Bugt, West Greenland. PANGAEA, https://doi.org/10.1594/PANGAEA.898914 Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Dinocyst percentages in sediment core MSM05/3_343310 from Disko Bugt, West Greenland. PANGAEA, https://doi.org/10.1594/PANGAEA.898915 https://doi.pangaea.de/10.1594/PANGAEA.898918 https://doi.org/10.1594/PANGAEA.898918 |
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.898918 https://doi.org/10.1002/2017PA003289 https://doi.org/10.1594/PANGAEA.898914 https://doi.org/10.1594/PANGAEA.898915 |
_version_ |
1766335735010426880 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.898918 2023-05-15T15:03:53+02:00 Reconstructions of sea-surface parameters from sediment core MSM05/3_343310 from Disko Bugt, West Greenland Allan, Estelle de Vernal, Anne Knudsen, Mads Faurschou Hillaire-Marcel, Claude Moros, Matthias Ribeiro, Sofia Ouellet‐Bernier, Marie‐Michèle Seidenkrantz, Marit-Solveig 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 2019-03-01 text/tab-separated-values, 1477 data points https://doi.pangaea.de/10.1594/PANGAEA.898918 https://doi.org/10.1594/PANGAEA.898918 en eng PANGAEA Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Dinocyst assemblages in sediment core MSM05/3_343310 from Disko Bugt, West Greenland. PANGAEA, https://doi.org/10.1594/PANGAEA.898914 Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2019): Dinocyst percentages in sediment core MSM05/3_343310 from Disko Bugt, West Greenland. PANGAEA, https://doi.org/10.1594/PANGAEA.898915 https://doi.pangaea.de/10.1594/PANGAEA.898918 https://doi.org/10.1594/PANGAEA.898918 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Allan, Estelle; de Vernal, Anne; Knudsen, Mads Faurschou; Hillaire-Marcel, Claude; Moros, Matthias; Ribeiro, Sofia; Ouellet‐Bernier, Marie‐Michèle; Seidenkrantz, Marit-Solveig (2018): Late Holocene sea surface instabilities in the Disko Bugt Area, West Greenland, in phase with δ18O oscillations at Camp Century. Paleoceanography and Paleoclimatology, 33(2), 227-243, https://doi.org/10.1002/2017PA003289 Age Arctic climate change Arctic sea ice reconstructions Baffin Bay Calculated Dinocyst database Event label GC Gravity corer Late Holocene Maria S. Merian MSM05/3 MSM05/3_343310-2-2 MSM05/3_343310-5-1 MUC MultiCorer Paleoproductivity as carbon Sea ice cover duration Sea surface salinity summer winter Sea surface temperature West Greenland Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.898918 https://doi.org/10.1002/2017PA003289 https://doi.org/10.1594/PANGAEA.898914 https://doi.org/10.1594/PANGAEA.898915 2023-01-20T09:12:05Z Palynological analyses of sediment core MSM343310 from Disko Bugt (68°38.861' N, 53°49.493' W) document decadal‐ to centennial‐scale variability of sea surface conditions during the last ~3,600 years. Dinocyst fluxes (>10⁴ cysts/cm² yr⁻¹) indicate a very high productivity. Dinocyst assemblages dominated by Islandinium minutum, Brigantedinium spp., Islandinium? cezare, and the cyst of Pentapharsodinium dalei suggest low surface salinity and marked shifts in summer sea surface temperature. The application of the modern analog technique to dinocyst assemblages, using an updated reference data set with new sites from the West Greenland margin, led to reconstruct decadal‐centennial‐scale variations in sea surface salinity and temperature, in phase with the δ18O variations in the Camp Century ice core. At ~1.5 ka BP, the seasonal sea ice cover records an important regime change, from winter‐only sea ice to more unstable conditions marked by successive cooling pulses with sea ice cover of up to 8 months/yr. The data suggest a close relationship between hydrographic conditions and regional climate over Greenland. Our record shows variations with a mean 200 years periodicity until ~2 ka BP, which supports the hypothesis of climate variations driven by solar variability. After 1.5 ka BP, our data show a variability characterized by a 60-70 year periodicity, which suggests linkages with the Atlantic Multidecadal Oscillation and southwestward migration of the atmospheric polar front. The most recent part of the record, from ~1900 CE to 2007 CE, is characterized by assemblages reflecting warmer surface conditions and reduced sea ice cover. Dataset Arctic Baffin Bay Baffin Bay Baffin Climate change Disko bugt Greenland ice core Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Baffin Bay Greenland ENVELOPE(-53.824880,-53.824770,68.647820,68.647680) |