(Table 1) Age determination of Barents Sea sediment cores, supplement to: Risebrobakken, Bjørg; Dokken, Trond; Smedsrud, Lars Henrik; Andersson, Carin; Jansen, Eystein; Moros, Matthias; Ivanova, Elena V (2011): Early Holocene temperature variability in the Nordic Seas: The role of oceanic heat advection versus changes in orbital forcing. Paleoceanography, 26(4), PA4206

DOI

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.

Identifier
DOI https://doi.org/10.1594/PANGAEA.829724
Related Identifier https://doi.org/10.1029/2011PA002117
Related Identifier https://doi.org/10.1038/ngeo439
Related Identifier https://doi.org/10.1134/S0001437010040132
Related Identifier https://doi.org/10.2113/gsjfr.38.4.337
Related Identifier https://doi.org/10.1029/2002PA000764
Related Identifier https://doi.org/10.1177/0959683609356586
Related Identifier https://doi.org/10.1111/j.1502-3885.2003.tb01227.x
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.829724
Provenance
Creator Risebrobakken, Bjørg; Dokken, Trond; Smedsrud, Lars Henrik; Andersson, Carin; Jansen, Eystein; Moros, Matthias; Ivanova, Elena V
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Contributor Bjerknes Centre for Climate Research
Publication Year 2014
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Size 888 data points
Discipline Earth System Research
Spatial Coverage (-0.980W, 62.375S, 41.883E, 78.925N); Arctic Ocean; Voring Plateau; N. Shetland channel; Barents Sea
Temporal Coverage Begin 1988-07-16T00:00:00Z
Temporal Coverage End 1999-08-01T00:00:00Z