FN Archimer Export Format PT J TI A signal of persistent Atlantic multidecadal variability in Arctic sea ice BT AF MILES, Martin W. DIVINE, Dmitry V. FUREVIK, Tore JANSEN, Eystein MOROS, Matthias OGILVIE, Astrid E. J. AS 1:1,2,3;2:4,5;3:2,6;4:1,2,7;5:8;6:3; FF 1:;2:;3:;4:;5:;6:; C1 Uni Res, Bergen, Norway. Bjerknes Ctr Climate Res, Bergen, Norway. Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA. Norwegian Polar Res Inst, Polar Environm Ctr, Tromso, Norway. Univ Tromso, Dept Math & Stat, Tromso, Norway. Univ Bergen, Inst Geophys, Bergen, Norway. Univ Bergen, Dept Earth Sci, Bergen, Norway. Balt Sea Res Inst, Rostock, Germany. C2 UNI RES BERGEN, NORWAY BCCR, NORWAY UNIV COLORADO BOULDER, USA NORWEGIAN POLAR INST, NORWAY UNIV TROMSO, NORWAY UNIV BERGEN, NORWAY UNIV BERGEN, NORWAY LEIBNIZ INST BALT SEA RES (IOW), GERMANY IF 4.196 TC 98 UR https://archimer.ifremer.fr/doc/00291/40199/39229.pdf https://archimer.ifremer.fr/doc/00291/40199/39230.txt https://archimer.ifremer.fr/doc/00291/40199/39232.pdf LA English DT Article CR IMAGES V LEG 1-MD114 IMAGES V LEG 4-MD114 BO Marion Dufresne DE ;sea ice AB Satellite data suggest an Arctic sea ice-climate system in rapid transformation, yet its long-term natural modes of variability are poorly known. Here we integrate and synthesize a set of multicentury historical records of Atlantic Arctic sea ice, supplemented with high-resolution paleoproxy records, each reflecting primarily winter/spring sea ice conditions. We establish a signal of pervasive and persistent multidecadal (~60–90 year) fluctuations that is most pronounced in the Greenland Sea and weakens further away. Covariability between sea ice and Atlantic multidecadal variability as represented by the Atlantic Multidecadal Oscillation (AMO) index is evident during the instrumental record, including an abrupt change at the onset of the early twentieth century warming. Similar covariability through previous centuries is evident from comparison of the longest historical sea ice records and paleoproxy reconstructions of sea ice and the AMO. This observational evidence supports recent modeling studies that have suggested that Arctic sea ice is intrinsically linked to Atlantic multidecadal variability. This may have implications for understanding the recent negative trend in Arctic winter sea ice extent, although because the losses have been greater in summer, other processes and feedbacks are also important. PY 2014 PD JAN SO Geophysical Research Letters SN 0094-8276 PU Amer Geophysical Union VL 41 IS 2 UT 000332991000038 BP 463 EP 469 DI 10.1002/2013GL058084 ID 40199 ER EF