Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP
Changes in the Holocene interaction of the (i) cold/fresh East Greenland Current (EGC) and (ii) warm/saline Irminger Current (IC) in northern Denmark Strait have been reconstructed from benthic and planktic foraminifera assemblages, ice-rafted debris, grain-size analyses and quantitative X-ray diffr...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.898363 2023-05-15T16:00:36+02:00 Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP Perner, Kerstin Jennings, Anne E Moros, Matthias Andrews, John T Wacker, Lukas LATITUDE: 68.100167 * LONGITUDE: -29.443333 * MINIMUM DEPTH, sediment/rock: 0.110 m * MAXIMUM DEPTH, sediment/rock: 2.900 m 2019-02-13 text/tab-separated-values, 2240 data points https://doi.pangaea.de/10.1594/PANGAEA.898363 https://doi.org/10.1594/PANGAEA.898363 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.898363 https://doi.org/10.1594/PANGAEA.898363 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Perner, Kerstin; Jennings, Anne E; Moros, Matthias; Andrews, John T; Wacker, Lukas (2016): Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP. Journal of Quaternary Science, 31(5), 472-483, https://doi.org/10.1002/jqs.2872 AGE Coring/Drilling_devices DEPTH sediment/rock drift ice East Greenland Current Foraminifera planktic Grain size sieving/settling tube GREENClim Holocene Ice rafted debris general Irminger Current Jan Mayen JM96 JM96-1206/2-GC Percentage Silt Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.898363 https://doi.org/10.1002/jqs.2872 2023-01-20T09:12:00Z Changes in the Holocene interaction of the (i) cold/fresh East Greenland Current (EGC) and (ii) warm/saline Irminger Current (IC) in northern Denmark Strait have been reconstructed from benthic and planktic foraminifera assemblages, ice-rafted debris, grain-size analyses and quantitative X-ray diffraction. During the time from c. 10 600 to 8000 cal a BP, palaeoceanographic reconstructions reveal waning deglacial influence from the receding Greenland Ice Sheet and presence of a strong EGC caused low surface water productivity. From c. 8000 cal a BP, a predominant influence of Atlantic-sourced IC waters on subsurface water conditions became established in northern Denmark Strait, which accompanied low surface water productivity. Relatively warm surface and subsurface water conditions, i.e. reduced EGC and strong IC influence, are found from c. 6500 to 4500 cal a BP, representing Holocene optimum-like conditions. A mid- to late Holocene EGC strengthening caused increased stratification and formation of a distinct halocline. However, we recognize millennial-scale periods of reduced stratification by an enhanced influence of Atlantic-sourced IC Water on surface water conditions: (i) at c. 2500–1400 cal a BP - the time of the Roman Warm Period and (ii) at c. 300 cal a BP - the later part of the Little Ice Age. These periods of oceanic warming probably relate to changes in the Subpolar Gyre dynamics that led to enhanced entrainment of Atlantic-sourced IC Water into northern Denmark Strait. Dataset Denmark Strait East Greenland east greenland current Greenland Ice Sheet Jan Mayen PANGAEA - Data Publisher for Earth & Environmental Science Greenland Jan Mayen ENVELOPE(-29.443333,-29.443333,68.100167,68.100167) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AGE Coring/Drilling_devices DEPTH sediment/rock drift ice East Greenland Current Foraminifera planktic Grain size sieving/settling tube GREENClim Holocene Ice rafted debris general Irminger Current Jan Mayen JM96 JM96-1206/2-GC Percentage Silt |
spellingShingle |
AGE Coring/Drilling_devices DEPTH sediment/rock drift ice East Greenland Current Foraminifera planktic Grain size sieving/settling tube GREENClim Holocene Ice rafted debris general Irminger Current Jan Mayen JM96 JM96-1206/2-GC Percentage Silt Perner, Kerstin Jennings, Anne E Moros, Matthias Andrews, John T Wacker, Lukas Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP |
topic_facet |
AGE Coring/Drilling_devices DEPTH sediment/rock drift ice East Greenland Current Foraminifera planktic Grain size sieving/settling tube GREENClim Holocene Ice rafted debris general Irminger Current Jan Mayen JM96 JM96-1206/2-GC Percentage Silt |
description |
Changes in the Holocene interaction of the (i) cold/fresh East Greenland Current (EGC) and (ii) warm/saline Irminger Current (IC) in northern Denmark Strait have been reconstructed from benthic and planktic foraminifera assemblages, ice-rafted debris, grain-size analyses and quantitative X-ray diffraction. During the time from c. 10 600 to 8000 cal a BP, palaeoceanographic reconstructions reveal waning deglacial influence from the receding Greenland Ice Sheet and presence of a strong EGC caused low surface water productivity. From c. 8000 cal a BP, a predominant influence of Atlantic-sourced IC waters on subsurface water conditions became established in northern Denmark Strait, which accompanied low surface water productivity. Relatively warm surface and subsurface water conditions, i.e. reduced EGC and strong IC influence, are found from c. 6500 to 4500 cal a BP, representing Holocene optimum-like conditions. A mid- to late Holocene EGC strengthening caused increased stratification and formation of a distinct halocline. However, we recognize millennial-scale periods of reduced stratification by an enhanced influence of Atlantic-sourced IC Water on surface water conditions: (i) at c. 2500–1400 cal a BP - the time of the Roman Warm Period and (ii) at c. 300 cal a BP - the later part of the Little Ice Age. These periods of oceanic warming probably relate to changes in the Subpolar Gyre dynamics that led to enhanced entrainment of Atlantic-sourced IC Water into northern Denmark Strait. |
format |
Dataset |
author |
Perner, Kerstin Jennings, Anne E Moros, Matthias Andrews, John T Wacker, Lukas |
author_facet |
Perner, Kerstin Jennings, Anne E Moros, Matthias Andrews, John T Wacker, Lukas |
author_sort |
Perner, Kerstin |
title |
Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP |
title_short |
Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP |
title_full |
Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP |
title_fullStr |
Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP |
title_full_unstemmed |
Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP |
title_sort |
interaction between warm atlantic-sourced waters and the east greenland current in northern denmark strait (68°n) during the last 10 600 cal a bp |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.898363 https://doi.org/10.1594/PANGAEA.898363 |
op_coverage |
LATITUDE: 68.100167 * LONGITUDE: -29.443333 * MINIMUM DEPTH, sediment/rock: 0.110 m * MAXIMUM DEPTH, sediment/rock: 2.900 m |
long_lat |
ENVELOPE(-29.443333,-29.443333,68.100167,68.100167) |
geographic |
Greenland Jan Mayen |
geographic_facet |
Greenland Jan Mayen |
genre |
Denmark Strait East Greenland east greenland current Greenland Ice Sheet Jan Mayen |
genre_facet |
Denmark Strait East Greenland east greenland current Greenland Ice Sheet Jan Mayen |
op_source |
Supplement to: Perner, Kerstin; Jennings, Anne E; Moros, Matthias; Andrews, John T; Wacker, Lukas (2016): Interaction between warm Atlantic-sourced waters and the East Greenland Current in northern Denmark Strait (68°N) during the last 10 600 cal a BP. Journal of Quaternary Science, 31(5), 472-483, https://doi.org/10.1002/jqs.2872 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.898363 https://doi.org/10.1594/PANGAEA.898363 |
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.898363 https://doi.org/10.1002/jqs.2872 |
_version_ |
1766396601149947904 |