Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea
Although the pulsating nature and the abruptness of the last deglaciation are well documented in marine and land records, very few marine records have so far been able to capture the high-frequency climatic changes recorded in the Greenland ice core Dye 3. We studied high-resolution sediment cores f...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728132 2023-05-15T15:01:56+02:00 Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea Karpuz, Nalân Jansen, Eystein MEDIAN LATITUDE: 63.066665 * MEDIAN LONGITUDE: 2.587500 * SOUTH-BOUND LATITUDE: 62.966660 * WEST-BOUND LONGITUDE: 2.550000 * NORTH-BOUND LATITUDE: 63.100000 * EAST-BOUND LONGITUDE: 2.700000 1992-09-25 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.728132 https://doi.org/10.1594/PANGAEA.728132 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.728132 https://doi.org/10.1594/PANGAEA.728132 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Karpuz, Nalân; Jansen, Eystein (1992): A high-resolution diatom record of the last deglaciation from the SE Norwegian Sea: documentation of rapid climatic changes. Paleoceanography, 7(4), 499-520, https://doi.org/10.1029/92PA01651 79-4 79-4/79-6 Core GC Gravity corer Håkon Mosby HM79 HM79-4 HM79-4/6 HM79-6.2 Norwegian Sea PC Piston corer Quaternary Environment of the Eurasian North QUEEN Dataset 1992 ftpangaea https://doi.org/10.1594/PANGAEA.728132 https://doi.org/10.1029/92PA01651 2023-01-20T07:31:31Z Although the pulsating nature and the abruptness of the last deglaciation are well documented in marine and land records, very few marine records have so far been able to capture the high-frequency climatic changes recorded in the Greenland ice core Dye 3. We studied high-resolution sediment cores from SE Norwegian Sea, which display a detailed climatic record during the last deglaciation comparable to that of Dye 3. Accelerator mass spectrometry age control of the cores enables us to correlate this record in detail with continental records. The results indicate that the surface waters of the SE Norwegian Sea were seasonally ice free after 13,400 B.P. The Bølling/Allerød interstadial complex (13,200-11,200 B.P.) was a climatically unstable period with changing Arctic-Subarctic conditions. This period was punctuated by four progressively more severe sea surface temperature (SST) minima: between 12,900-12,800 B.P. (BCP I); 12,500-12,400 B.P. (BCP II); 12,300-12,000 B.P. (OD I); and 11,800-11,500 B.P. (OD II). The Younger Dryas (YD) (11,200-10,200 B.P.) represents the severest and most prolonged cold episode of this series of climatic deteriorations. It was bounded by very rapid SST changes and characterized by Arctic-Polar conditions. The first true warm Atlantic water incursion to the SE Norwegian Sea took place around 10,100 B.P., followed by a brief cooler condition between 9900-9600 B.P. (YD II). The early Holocene climatic optimum occurred between 8000-5000 B.P. A conceptual model is proposed where meltwater fluxes are suggested to cause the observed instability in the SST record. Dataset Arctic Dye 3 Dye-3 Greenland Greenland ice core ice core Norwegian Sea Subarctic PANGAEA - Data Publisher for Earth & Environmental Science Arctic Norwegian Sea Greenland ENVELOPE(2.550000,2.700000,63.100000,62.966660) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
79-4 79-4/79-6 Core GC Gravity corer Håkon Mosby HM79 HM79-4 HM79-4/6 HM79-6.2 Norwegian Sea PC Piston corer Quaternary Environment of the Eurasian North QUEEN |
spellingShingle |
79-4 79-4/79-6 Core GC Gravity corer Håkon Mosby HM79 HM79-4 HM79-4/6 HM79-6.2 Norwegian Sea PC Piston corer Quaternary Environment of the Eurasian North QUEEN Karpuz, Nalân Jansen, Eystein Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea |
topic_facet |
79-4 79-4/79-6 Core GC Gravity corer Håkon Mosby HM79 HM79-4 HM79-4/6 HM79-6.2 Norwegian Sea PC Piston corer Quaternary Environment of the Eurasian North QUEEN |
description |
Although the pulsating nature and the abruptness of the last deglaciation are well documented in marine and land records, very few marine records have so far been able to capture the high-frequency climatic changes recorded in the Greenland ice core Dye 3. We studied high-resolution sediment cores from SE Norwegian Sea, which display a detailed climatic record during the last deglaciation comparable to that of Dye 3. Accelerator mass spectrometry age control of the cores enables us to correlate this record in detail with continental records. The results indicate that the surface waters of the SE Norwegian Sea were seasonally ice free after 13,400 B.P. The Bølling/Allerød interstadial complex (13,200-11,200 B.P.) was a climatically unstable period with changing Arctic-Subarctic conditions. This period was punctuated by four progressively more severe sea surface temperature (SST) minima: between 12,900-12,800 B.P. (BCP I); 12,500-12,400 B.P. (BCP II); 12,300-12,000 B.P. (OD I); and 11,800-11,500 B.P. (OD II). The Younger Dryas (YD) (11,200-10,200 B.P.) represents the severest and most prolonged cold episode of this series of climatic deteriorations. It was bounded by very rapid SST changes and characterized by Arctic-Polar conditions. The first true warm Atlantic water incursion to the SE Norwegian Sea took place around 10,100 B.P., followed by a brief cooler condition between 9900-9600 B.P. (YD II). The early Holocene climatic optimum occurred between 8000-5000 B.P. A conceptual model is proposed where meltwater fluxes are suggested to cause the observed instability in the SST record. |
format |
Dataset |
author |
Karpuz, Nalân Jansen, Eystein |
author_facet |
Karpuz, Nalân Jansen, Eystein |
author_sort |
Karpuz, Nalân |
title |
Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea |
title_short |
Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea |
title_full |
Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea |
title_fullStr |
Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea |
title_full_unstemmed |
Diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast Norwegian Sea |
title_sort |
diatom abundance and paleo-temperature reconstruction for sediment cores from the southeast norwegian sea |
publisher |
PANGAEA |
publishDate |
1992 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.728132 https://doi.org/10.1594/PANGAEA.728132 |
op_coverage |
MEDIAN LATITUDE: 63.066665 * MEDIAN LONGITUDE: 2.587500 * SOUTH-BOUND LATITUDE: 62.966660 * WEST-BOUND LONGITUDE: 2.550000 * NORTH-BOUND LATITUDE: 63.100000 * EAST-BOUND LONGITUDE: 2.700000 |
long_lat |
ENVELOPE(2.550000,2.700000,63.100000,62.966660) |
geographic |
Arctic Norwegian Sea Greenland |
geographic_facet |
Arctic Norwegian Sea Greenland |
genre |
Arctic Dye 3 Dye-3 Greenland Greenland ice core ice core Norwegian Sea Subarctic |
genre_facet |
Arctic Dye 3 Dye-3 Greenland Greenland ice core ice core Norwegian Sea Subarctic |
op_source |
Supplement to: Karpuz, Nalân; Jansen, Eystein (1992): A high-resolution diatom record of the last deglaciation from the SE Norwegian Sea: documentation of rapid climatic changes. Paleoceanography, 7(4), 499-520, https://doi.org/10.1029/92PA01651 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.728132 https://doi.org/10.1594/PANGAEA.728132 |
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.728132 https://doi.org/10.1029/92PA01651 |
_version_ |
1766333930983653376 |