Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010
Variable climatic and oceanographic conditions characterized the last interglacial at high northern latitudes, probably related to changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC). The magnitudes of these changes are comparable to the Holocene variability, and were t...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.840727 2023-05-15T16:18:08+02:00 Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 Risebrobakken, Bjørg Dokken, Trond Jansen, Eystein MEDIAN LATITUDE: 73.924733 * MEDIAN LONGITUDE: 7.379942 * SOUTH-BOUND LATITUDE: 66.684167 * WEST-BOUND LONGITUDE: 4.566160 * NORTH-BOUND LATITUDE: 77.621067 * EAST-BOUND LONGITUDE: 9.948333 * DATE/TIME START: 1995-06-07T00:00:00 * DATE/TIME END: 1999-08-01T00:00:00 2014-12-16 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.840727 https://doi.org/10.1594/PANGAEA.840727 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.840727 https://doi.org/10.1594/PANGAEA.840727 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Risebrobakken, Bjørg; Dokken, Trond; Jansen, Eystein (2005): Extent and variability of the Meridional Atlantic Circulation in the Eastern Nordic Seas during Marine Isotope Stage 5 and its influence on the inception of the last Glacial. Geophysical Monograph Series, 158, 323-339, https://doi.org/10.1029/158GM20 3182N 3280N CALYPSO Calypso Corer IMAGES IMAGES I IMAGES V International Marine Global Change Study Marion Dufresne (1995) MD101 MD114 MD952010 MD95-2010 MD99-2303 MD99-2304 Spitsbergen slope Voring Plateau Dataset 2014 ftpangaea https://doi.org/10.1594/PANGAEA.840727 https://doi.org/10.1029/158GM20 2023-01-20T07:33:22Z Variable climatic and oceanographic conditions characterized the last interglacial at high northern latitudes, probably related to changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC). The magnitudes of these changes are comparable to the Holocene variability, and were thus significantly subdued compared to glacial climate changes. A thermal optimum occurred during the early part of the interglacial, followed by a period of reduced Atlantic inflow to the northernmost Nordic Seas. Subsequently, a new period with increased strength of the AMOC occurred. Significant amounts of Ice-Rafted Debris (IRD) were deposited in the northernmost Nordic Seas before any major change of the global ice volume. This implies an early onset of local ice sheet growth, probably the result of enhanced inflow of Atlantic water to the northernmost Nordic Seas contemporary with a Northern Hemisphere summer insolation minimum. Contrasting sea-land conditions provided large moisture fluxes towards land, giving rise to rapid, early glacial growth. Throughout the glacial part of Marine Isotope Stage (MIS) 5, millennial-scale cold events occurred along the axis of the warm water transport, from the subtropics all the way to the northernmost Nordic Seas. Correlation of IRD events from sites in the Fram Strait, on the Voring Plateau, and in the North Atlantic provides evidence that the major Northern Hemisphere ice sheets at times responded coherently to the same forcing. The widespread distribution of these events highlights the importance of the oceanic influence on the regional climate system. Dataset Fram Strait Ice Sheet Nordic Seas North Atlantic Planktonic foraminifera Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(4.566160,9.948333,77.621067,66.684167) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
3182N 3280N CALYPSO Calypso Corer IMAGES IMAGES I IMAGES V International Marine Global Change Study Marion Dufresne (1995) MD101 MD114 MD952010 MD95-2010 MD99-2303 MD99-2304 Spitsbergen slope Voring Plateau |
spellingShingle |
3182N 3280N CALYPSO Calypso Corer IMAGES IMAGES I IMAGES V International Marine Global Change Study Marion Dufresne (1995) MD101 MD114 MD952010 MD95-2010 MD99-2303 MD99-2304 Spitsbergen slope Voring Plateau Risebrobakken, Bjørg Dokken, Trond Jansen, Eystein Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 |
topic_facet |
3182N 3280N CALYPSO Calypso Corer IMAGES IMAGES I IMAGES V International Marine Global Change Study Marion Dufresne (1995) MD101 MD114 MD952010 MD95-2010 MD99-2303 MD99-2304 Spitsbergen slope Voring Plateau |
description |
Variable climatic and oceanographic conditions characterized the last interglacial at high northern latitudes, probably related to changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC). The magnitudes of these changes are comparable to the Holocene variability, and were thus significantly subdued compared to glacial climate changes. A thermal optimum occurred during the early part of the interglacial, followed by a period of reduced Atlantic inflow to the northernmost Nordic Seas. Subsequently, a new period with increased strength of the AMOC occurred. Significant amounts of Ice-Rafted Debris (IRD) were deposited in the northernmost Nordic Seas before any major change of the global ice volume. This implies an early onset of local ice sheet growth, probably the result of enhanced inflow of Atlantic water to the northernmost Nordic Seas contemporary with a Northern Hemisphere summer insolation minimum. Contrasting sea-land conditions provided large moisture fluxes towards land, giving rise to rapid, early glacial growth. Throughout the glacial part of Marine Isotope Stage (MIS) 5, millennial-scale cold events occurred along the axis of the warm water transport, from the subtropics all the way to the northernmost Nordic Seas. Correlation of IRD events from sites in the Fram Strait, on the Voring Plateau, and in the North Atlantic provides evidence that the major Northern Hemisphere ice sheets at times responded coherently to the same forcing. The widespread distribution of these events highlights the importance of the oceanic influence on the regional climate system. |
format |
Dataset |
author |
Risebrobakken, Bjørg Dokken, Trond Jansen, Eystein |
author_facet |
Risebrobakken, Bjørg Dokken, Trond Jansen, Eystein |
author_sort |
Risebrobakken, Bjørg |
title |
Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 |
title_short |
Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 |
title_full |
Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 |
title_fullStr |
Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 |
title_full_unstemmed |
Isotope ratios, IRD and planktonic foraminifera content during marine isotope stage 5 of sediment cores MD99-2303, MD99-2304 and MD95-2010 |
title_sort |
isotope ratios, ird and planktonic foraminifera content during marine isotope stage 5 of sediment cores md99-2303, md99-2304 and md95-2010 |
publisher |
PANGAEA |
publishDate |
2014 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.840727 https://doi.org/10.1594/PANGAEA.840727 |
op_coverage |
MEDIAN LATITUDE: 73.924733 * MEDIAN LONGITUDE: 7.379942 * SOUTH-BOUND LATITUDE: 66.684167 * WEST-BOUND LONGITUDE: 4.566160 * NORTH-BOUND LATITUDE: 77.621067 * EAST-BOUND LONGITUDE: 9.948333 * DATE/TIME START: 1995-06-07T00:00:00 * DATE/TIME END: 1999-08-01T00:00:00 |
long_lat |
ENVELOPE(4.566160,9.948333,77.621067,66.684167) |
genre |
Fram Strait Ice Sheet Nordic Seas North Atlantic Planktonic foraminifera Spitsbergen |
genre_facet |
Fram Strait Ice Sheet Nordic Seas North Atlantic Planktonic foraminifera Spitsbergen |
op_source |
Supplement to: Risebrobakken, Bjørg; Dokken, Trond; Jansen, Eystein (2005): Extent and variability of the Meridional Atlantic Circulation in the Eastern Nordic Seas during Marine Isotope Stage 5 and its influence on the inception of the last Glacial. Geophysical Monograph Series, 158, 323-339, https://doi.org/10.1029/158GM20 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.840727 https://doi.org/10.1594/PANGAEA.840727 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.840727 https://doi.org/10.1029/158GM20 |
_version_ |
1766004264716468224 |