FN Archimer Export Format PT J TI A decadal-scale Holocene sea surface temperature record from the subpolar North Atlantic constructed using diatoms and statistics and its relation to other climate parameters BT AF BERNER, K. S. KOC, N. DIVINE, D. GODTLIEBSEN, F. MOROS, M. AS 1:1,3;2:1,3;3:1,2;4:1,2;5:4; FF 1:;2:;3:;4:;5:; C1 Norwegian Polar Res Inst, N-9296 Tromso, Norway. Univ Tromso, Dept Math & Stat, N-9037 Tromso, Norway. Univ Tromso, Dept Geol, N-9037 Tromso, Norway. Balt Sea Res Inst, D-18119 Rostock, Germany. C2 NORWEGIAN POLAR RES INST, NORWAY UNIV TROMSO, NORWAY UNIV TROMSO, NORWAY BALT SEA RES INST, GERMANY IF 3.626 TC 68 UR https://archimer.ifremer.fr/doc/00237/34843/33268.pdf LA English DT Article CR IMAGES V LEG 1-MD114 IMAGES V LEG 4-MD114 BO Marion Dufresne AB A sediment core from Reykjanes Ridge has been studied at 10- to 50-year time resolution to document variability of Holocene surface water conditions in the western North Atlantic and to evaluate effects of Holocene ice-rafting episodes. Diatom assemblages are converted to quantitative sea surface temperatures (SST) using three different transfer functions. Spectral and scale-space methods are also applied on the records to explore variability at different timescales. Diatom assemblage and SST records clearly show that decaying remnants of the Laurentide ice sheet strongly influenced early Holocene climate in the western North Atlantic. This overrode the predominance of Milankovitch forcing, which played a key role in the development of Holocene climate in the eastern North Atlantic and Nordic Seas. Superimposed on general Holocene climate change is high-frequency SST variability on the order of 1 degrees -3 degrees C. The record also documents climatic oscillations with 600- to 1000-, similar to 1500-, and 2500-year periodicities, with a time-dependent dominance of different periodicities through the Holocene; a clear change in variability occurred about 5 ka BP. The SST record also provides evidence for Holocene cooling events (HCE) that, in some cases, correlate to documented southward intrusions of ice into the North Atlantic. PY 2008 PD MAY SO Paleoceanography SN 0883-8305 PU Amer Geophysical Union VL 23 IS 2 / PA2210 UT 000256063700001 BP 1 EP 15 DI 10.1029/2006PA001339 ID 34843 ER EF