TY - JOUR T1 - Regional seesaw between the North Atlantic and Nordic Seas during the last glacial abrupt climate events A1 - Wary,Melanie A1 - Eynaud,Frederique A1 - Swingedouw,Didier A1 - Masson-Delmotte,Valerie A1 - Matthiessen,Jens A1 - Kissel,Catherine A1 - Zumaque,Jena A1 - Rossignol,Linda A1 - Jouzel,Jean AD - Univ Bordeaux, EPHE, CNRS, UMR 5805,EPOC, F-33615 Pessac, France. AD - UVSQ, INSU, CNRS, UMR8212,LSCE,IPSL,CEA, F-91191 Gif Sur Yvette, France. AD - Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, D-27568 Bremerhaven, Germany. AD - Univ Quebec Montreal, Geotop, Montreal, PQ H3C 3P8, Canada. UR - https://archimer.ifremer.fr/doc/00420/53149/ DO - 10.5194/cp-13-729-2017 N2 - Dansgaard-Oeschger oscillations constitute one of the most enigmatic features of the last glacial cycle. Their cold atmospheric phases have been commonly associated with cold sea-surface temperatures and expansion of sea ice in the North Atlantic and adjacent seas. Here, based on dinocyst analyses from the 48-30 ka interval of four sediment cores from the northern Northeast Atlantic and southern Norwegian Sea, we provide direct and quantitative evidence of a regional paradoxical seesaw pattern: cold Greenland and North Atlantic phases coincide with warmer sea-surface conditions and shorter seasonal sea-ice cover durations in the Norwegian Sea as compared to warm phases. Combined with additional palaeorecords and multi-model hosing simulations, our results suggest that during cold Greenland phases, reduced Atlantic meridional overturning circulation and cold North Atlantic sea-surface conditions were accompanied by the subsurface propagation of warm Atlantic waters that re-emerged in the Nordic Seas and provided moisture towards Greenland summit. Y1 - 2017/06/30 PB - Copernicus Gesellschaft Mbh JF - Climate Of The Past SN - 1814-9324 VL - 13 IS - 6 SP - 729 EP - 739 ID - 53149 ER -