FN Archimer Export Format PT J TI Impact of meltwater on high-latitude early Last Interglacial climate BT AF STONE, Emma J. CAPRON, Emilie LUNT, Daniel J. PAYNE, Antony J. SINGARAYER, Joy S. VALDES, Paul J. WOLFF, Eric W. AS 1:1;2:2,3;3:1;4:1;5:4;6:1;7:5; FF 1:;2:;3:;4:;5:;6:;7:; C1 Univ Bristol, Sch Geog Sci, BRIDGE, Bristol, Avon, England. British Antarctic Survey, Cambridge, England. Univ Copenhagen, Niels Bohr Inst, Ctr Ice & Climate, Copenhagen, Denmark. Univ Reading, Dept Meteorol, Reading, Berks, England. Univ Cambridge, Dept Earth Sci, Cambridge, England. C2 UNIV BRISTOL, UK BRITISH ANTARCTIC SURVEY, UK UNIV COPENHAGEN, DENMARK UNIV READING, UK UNIV CAMBRIDGE, UK IN DOAJ IF 3.543 TC 22 UR https://archimer.ifremer.fr/doc/00496/60796/64928.pdf https://archimer.ifremer.fr/doc/00496/60796/64929.pdf LA English DT Article CR MD 125 / SWIFT BIS-CARHOT BO Marion Dufresne AB Recent data compilations of the early Last Interglacial period have indicated a bipolar temperature response at 130 ka, with colder-than-present temperatures in the North Atlantic and warmer-than-present temperatures in the Southern Ocean and over Antarctica. However, climate model simulations of this period have been unable to reproduce this response, when only orbital and greenhouse gas forcings are considered in a climate model framework. Using a full-complexity general circulation model we perform climate model simulations representative of 130 ka conditions which include a magnitude of freshwater forcing derived from data at this time. We show that this meltwater from the remnant Northern Hemisphere ice sheets during the glacial-interglacial transition produces a modelled climate response similar to the observed colder-than-present temperatures in the North Atlantic at 130 ka and also results in warmer-than-present temperatures in the Southern Ocean via the bipolar seesaw mechanism. Further simulations in which the West Antarctic Ice Sheet is also removed lead to warming in East Antarctica and the Southern Ocean but do not appreciably improve the model-data comparison. This integrated model-data approach provides evidence that Northern Hemisphere freshwater forcing is an important player in the evolution of early Last Interglacial climate. PY 2016 PD SEP SO Climate Of The Past SN 1814-9324 PU Copernicus Gesellschaft Mbh VL 12 IS 9 UT 000385443900001 BP 1919 EP 1932 DI 10.5194/cp-12-1919-2016 ID 60796 ER EF