FN Archimer Export Format PT J TI Early Holocene temperature variability in the Nordic Seas: The role of oceanic heat advection versus changes in orbital forcing BT AF RISEBROBAKKEN, Bjorg DOKKEN, Trond SMEDSRUD, Lars Henrik ANDERSSON, Carin JANSEN, Eystein MOROS, Matthias IVANOVA, Elena V. AS 1:1,5;2:1,5;3:1,5;4:1,4,5;5:1,4,5;6:1,3;7:2; FF 1:;2:;3:;4:;5:;6:;7:; C1 Univ Bergen, Bjerknes Ctr Climate Res, N-5007 Bergen, Norway. PP Shirshov Oceanol Inst, Moscow 117997, Russia. Inst Balt Sea Res, D-18119 Rostock, Germany. Univ Bergen, Dept Earth Sci, N-5007 Bergen, Norway. Uni Res, Uni Bjerknes Ctr, Bergen, Norway. C2 UNIV BERGEN, NORWAY PP SHIRSHOV OCEANOL INST, RUSSIA INST BALT SEA RES, GERMANY UNIV BERGEN, NORWAY UNI RES BERGEN, NORWAY IF 3.357 TC 80 UR https://archimer.ifremer.fr/doc/00227/33800/32547.pdf https://archimer.ifremer.fr/doc/00227/33800/32548.pdf LA English DT Article CR IMAGES 1-MD101 IMAGES V LEG 1-MD114 IMAGES V LEG 4-MD114 BO Marion Dufresne AB 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. PY 2011 PD OCT SO Paleoceanography SN 0883-8305 PU Amer Geophysical Union VL 26 IS 4 / PA4206 UT 000296160800001 BP 1 EP 17 DI 10.1029/2011PA002117 ID 33800 ER EF