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author Risebrobakken, Bjørg
Dokken, Trond
Smedsrud, Lars Henrik
Andersson, Carin
Jansen, Eystein
Moros, Matthias
Ivanova, Elena V
author_facet Risebrobakken, Bjørg
Dokken, Trond
Smedsrud, Lars Henrik
Andersson, Carin
Jansen, Eystein
Moros, Matthias
Ivanova, Elena V
collection Datos científicos de ciencias marinas y ambientales
contents The separate roles of oceanic heat advection and orbital forcing on influencing early Holocene temperature variability in the eastern Nordic Seas is investigated. The effect of changing orbital forcing on the ocean temperatures is tested using the 1DICE model, and the 1DICE results are compared with new and previously published temperature reconstructions from a transect of five cores located underneath the pathway of Atlantic water, from the Faroe-Shetland Channel in the south to the Barents Sea in the north. The stronger early Holocene summer insolation at high northern latitudes increased the summer mixed layer temperatures, however, ocean temperatures underneath the summer mixed layer did not increase significantly. The absolute maximum in summer mixed layer temperatures occurred between 9 and 6 ka BP, representing the Holocene Thermal Maximum in the eastern Nordic Seas. In contrast, maximum in northward oceanic heat transport through the Norwegian Atlantic Current occurred approximately 10 ka BP. The maximum in oceanic heat transport at 10 ka BP occurred due to a major reorganization of the Atlantic Ocean circulation, entailing strong and deep rejuvenation of the Atlantic Meridional Overturning Circulation, combined with changes in the North Atlantic gyre dynamic causing enhanced transport of heat and salt into the Nordic Seas.
format Dataset Open Access
id pangaea_https___doi_org_10_1594_PANGAEA_829724
institution PANGAEA
language en
publishDate 2014
publisher PANGAEA
record_format pangaea
spellingShingle (Table 1) Age determination of Barents Sea sediment cores
Risebrobakken, Bjørg
Dokken, Trond
Smedsrud, Lars Henrik
Andersson, Carin
Jansen, Eystein
Moros, Matthias
Ivanova, Elena V
3664N/S; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated, standard deviation; Age, dated material; Age, maximum/old; Age, minimum/young; Arctic Ocean; Barents Sea; Calendar age; CALYPSO; Calypso Corer; Comment; DEPTH, sediment/rock; Elevation of event; Event label; GC; GIK23258-2; Gravity corer; IMAGES I; IMAGES V; KAL; Kasten corer; Laboratory code/label; Latitude of event; Longitude of event; M7/2; Marion Dufresne (1995); MD101__Campaign; MD114; MD952011; MD95-2011; MD99-2284; Meteor (1986); N. Shetland channel; Probability; Professor Shtokman; PSh-5157; PSh-5159N; PSh64; Reference/source; Reservoir effect/correction; Reservoir effect/correction, standard deviation; Voring Plateau
The separate roles of oceanic heat advection and orbital forcing on influencing early Holocene temperature variability in the eastern Nordic Seas is investigated. The effect of changing orbital forcing on the ocean temperatures is tested using the 1DICE model, and the 1DICE results are compared with new and previously published temperature reconstructions from a transect of five cores located underneath the pathway of Atlantic water, from the Faroe-Shetland Channel in the south to the Barents Sea in the north. The stronger early Holocene summer insolation at high northern latitudes increased the summer mixed layer temperatures, however, ocean temperatures underneath the summer mixed layer did not increase significantly. The absolute maximum in summer mixed layer temperatures occurred between 9 and 6 ka BP, representing the Holocene Thermal Maximum in the eastern Nordic Seas. In contrast, maximum in northward oceanic heat transport through the Norwegian Atlantic Current occurred approximately 10 ka BP. The maximum in oceanic heat transport at 10 ka BP occurred due to a major reorganization of the Atlantic Ocean circulation, entailing strong and deep rejuvenation of the Atlantic Meridional Overturning Circulation, combined with changes in the North Atlantic gyre dynamic causing enhanced transport of heat and salt into the Nordic Seas.
title (Table 1) Age determination of Barents Sea sediment cores
topic 3664N/S; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated, standard deviation; Age, dated material; Age, maximum/old; Age, minimum/young; Arctic Ocean; Barents Sea; Calendar age; CALYPSO; Calypso Corer; Comment; DEPTH, sediment/rock; Elevation of event; Event label; GC; GIK23258-2; Gravity corer; IMAGES I; IMAGES V; KAL; Kasten corer; Laboratory code/label; Latitude of event; Longitude of event; M7/2; Marion Dufresne (1995); MD101__Campaign; MD114; MD952011; MD95-2011; MD99-2284; Meteor (1986); N. Shetland channel; Probability; Professor Shtokman; PSh-5157; PSh-5159N; PSh64; Reference/source; Reservoir effect/correction; Reservoir effect/correction, standard deviation; Voring Plateau
url https://doi.org/10.1594/PANGAEA.829724