FN Archimer Export Format PT J TI Interglacial instability of North Atlantic Deep Water ventilation BT AF Galaasen, Eirik Vinje Ninnemann, Ulysses S. Kessler, Augustin Irvalı, Nil Rosenthal, Yair Tjiputra, Jerry Bouttes, Nathaëlle Roche, Didier M. Kleiven, Helga (Kikki) F. Hodell, David A. AS 1:1;2:1;3:2;4:1;5:3;6:2;7:4;8:4,5;9:1;10:6; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:; C1 Department of Earth Science and Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway. NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research, Bergen, Norway. Institute of Marine and Coastal Sciences and Department of Earth and Planetary Sciences, Rutgers University, New Brunswick, NJ, USA. Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France. Earth and Climate Cluster, Department of Earth Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands. Godwin Laboratory for Paleoclimate Research, Department of Earth Sciences, University of Cambridge, Cambridge, UK. C2 UNIV BERGEN, NORWAY NORCE, NORWAY UNIV RUTGERS, USA LSCE, FRANCE UNIV VRIJE AMSTERDAM, NETHERLANDS UNIV CAMBRIDGE, UK IF 47.728 TC 27 UR https://archimer.ifremer.fr/doc/00663/77524/79329.pdf https://archimer.ifremer.fr/doc/00663/77524/79330.pdf https://archimer.ifremer.fr/doc/00663/77524/79331.pdf https://archimer.ifremer.fr/doc/00663/77524/79332.xlsx LA English DT Article CR IMAGES V LEG 1-MD114 IMAGES V LEG 4-MD114 MD 132 / P.I.C.A.S.S.O.-IMAGES11 BO Marion Dufresne AB Disrupting North Atlantic Deep Water (NADW) ventilation is a key concern in climate projections. We use (sub)centennially resolved bottom water δ13C records that span the interglacials of the last 0.5 million years to assess the frequency of and the climatic backgrounds capable of triggering large NADW reductions. Episodes of reduced NADW in the deep Atlantic, similar in magnitude to glacial events, have been relatively common and occasionally long-lasting features of interglacials. NADW reductions were triggered across the range of recent interglacial climate backgrounds, which demonstrates that catastrophic freshwater outburst floods were not a prerequisite for large perturbations. Our results argue that large NADW disruptions are more easily achieved than previously appreciated and that they occurred in past climate conditions similar to those we may soon face. PY 2020 PD MAR SO Science SN 0036-8075 PU American Association for the Advancement of Science (AAAS) VL 367 IS 6485 UT 000523251600039 BP 1485 EP 1489 DI 10.1126/science.aay6381 ID 77524 ER EF