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Risebrobakken, Bjørg; Dokken, Trond; Smedsrud, Lars Henrik; Andersson, Carin; Jansen, Eystein; Moros, Matthias; Ivanova, Elena V (2014): (Table 1) Age determination of Barents Sea sediment cores. Bjerknes Centre for Climate Research, PANGAEA,, Supplement to: Risebrobakken, B et al. (2011): Early Holocene temperature variability in the Nordic Seas: The role of oceanic heat advection versus changes in orbital forcing. Paleoceanography, 26(4), PA4206,

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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.
Related to:
Bakke, Jostein; Lie, Øyvind; Heegaard, E; Dokken, Trond; Haug, Gerald H; Birks, Hilary H; Dulski, Peter; Nilsen, Trygve (2009): Rapid oceanic and atmospheric changes during the Younger Dryas cold period. Nature Geoscience, 2(3), 202-205,
Chistyakova, Natalia O; Ivanova, Elena V; Risebrobakken, Bjørg; Ovsepyan, E A; Ovsepyan, Ya S (2010): Reconstruction of the postglacial environments in the southwestern Barents Sea based on foraminiferal assemblages. Translated from Okeanologiya, 2010, 50(4), 608-617, Oceanology, 50(4), 573-581,
Ivanova, Elena V; Ovsepyan, E A; Risebrobakken, Bjørg; Vetrov, Alexander A (2008): Downcore distribution of living calcareous foraminifera and stable isotopes in the western Barents Sea. Journal of Foraminiferal Research, 38(4), 337-356,
Risebrobakken, Bjørg; Jansen, Eystein; Andersson, Carin; Mjelde, Eirik; Hevroy, Kjersti (2003): A high-resolution study of Holocene paleoclimatic and paleoceanographic changes in the Nordic Seas. Paleoceanography, 18(1), 1017,
Risebrobakken, Bjørg; Moros, Matthias; Ivanova, Elena V; Chistyakova, Natalia O; Rosenberg, Reinhild (2010): Climate and oceanographic variability in the SW Barents Sea during the Holocene. The Holocene, 20(4), 609-621,
Sarnthein, Michael; van Kreveld, Shirley A; Erlenkeuser, Helmut; Grootes, Pieter Meiert; Kucera, Michal; Pflaumann, Uwe; Schulz, Michael (2003): Centennial-to-millennial-scale periodicities of Holocene climate and sediment injections off western Barents shelf, 75°N. Boreas, 32(3), 447-461,
Median Latitude: 70.926082 * Median Longitude: 17.031339 * South-bound Latitude: 62.374667 * West-bound Longitude: -0.980167 * North-bound Latitude: 78.924670 * East-bound Longitude: 41.882830
Date/Time Start: 1988-07-16T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Minimum DEPTH, sediment/rock: 0.0250 m * Maximum DEPTH, sediment/rock: 8.1350 m
GIK23258-2 * Latitude: 74.998083 * Longitude: 13.968533 * Date/Time: 1988-07-16T00:00:00 * Elevation: -1768.0 m * Penetration: 10.5 m * Recovery: 9.32 m * Location: Arctic Ocean * Campaign: M7/2 * Basis: Meteor (1986) * Device: Kasten corer (KAL)
MD95-2011 (MD952011) * Latitude: 66.969660 * Longitude: 7.639330 * Date/Time: 1995-06-08T00:00:00 * Elevation: -1048.0 m * Recovery: 17 m * Location: Voring Plateau * Campaign: MD101 (IMAGES I) * Basis: Marion Dufresne * Device: Calypso Corer (CALYPSO) * Comment: XII Sections, Site location wrong, slumps. Bent core; liner imploded in the middle of the core; 30 cm of sediment of the top recovered in a 1/2 liner
MD99-2284 (3664N/S) * Latitude: 62.374667 * Longitude: -0.980167 * Date/Time: 1999-08-01T00:00:00 * Elevation: -1500.0 m * Recovery: 33.15 m * Location: N. Shetland channel * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne * Device: Calypso Corer (CALYPSO)
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Elevation of eventElevationm
5Laboratory code/labelLab labelRisebrobakken, Bjørg
6DEPTH, sediment/rockDepthmGeocode
7Age, dated materialDated materialRisebrobakken, Bjørg
8Age, datedAge datedkaRisebrobakken, BjørgAge, 14C AMS
9Age, dated standard deviationAge dated std dev±Risebrobakken, BjørgAge, 14C AMS
10Age, datedAge datedkaRisebrobakken, BjørgAge, 14C AMS#2
11Age, dated standard deviationAge dated std dev±Risebrobakken, BjørgAge, 14C AMS#2
12Reservoir effect/correctionRes effectaRisebrobakken, Bjørg
13Reservoir effect/correction, standard deviationRes effect std dev±Risebrobakken, Bjørg
14Age, minimum/youngAge minkaRisebrobakken, BjørgAge, 14C calibrated1 sigma range
15Age, maximum/oldAge maxkaRisebrobakken, BjørgAge, 14C calibrated1 sigma range
16Age, minimum/youngAge minkaRisebrobakken, BjørgAge, 14C calibrated#2, 1 sigma range
17Age, maximum/oldAge maxkaRisebrobakken, BjørgAge, 14C calibrated#2, 1 sigma range
18ProbabilityPRisebrobakken, Bjørgrelative
19Calendar yearsCal yrska BPRisebrobakken, BjørgAge, 14C calibrated
20Calendar yearsCal yrska BPRisebrobakken, BjørgAge, 14C calibrated#2
21CommentCommentRisebrobakken, Bjørg
22Reference/sourceReferenceRisebrobakken, Bjørg
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