FN Archimer Export Format PT J TI Deglacial patterns of South Pacific overturning inferred from 231Pa and 230Th BT AF Ronge, Thomas A. Lippold, Jörg Geibert, Walter Jaccard, Samuel L. Mieruch-Schnülle, Sebastian Süfke, Finn Tiedemann, Ralf AS 1:1;2:2;3:1;4:4,5;5:1;6:2;7:1,3; FF 1:;2:;3:;4:;5:;6:;7:; C1 Department of Marine Geology, Alfred-Wegener-Institut Helmholtz Zentrum für Polar-und Meeresforschung, PO Box 120161, 27515, Bremerhaven, Germany Institut für Geowissenschaften, Universität Heidelberg, 69120, Heidelberg, Germany MARUM Center for Marine Environmental Sciences, Universität Bremen, 28334, Bremen, Germany Institut für Geologie & Oeschger Center for Climate Change Research, Universität Bern, 3012, Bern, Switzerland Institute of Earth Sciences, University of Lausanne, 1015, Lausanne, Switzerland C2 INST A WEGENER, GERMANY UNIV HEIDELBERG, GERMANY UNIV BREMEN MARUM, GERMANY UNIV BERN, SWITZERLAND UNIV LAUSANNE, SWITZERLAND IN DOAJ IF 4.997 TC 4 UR https://archimer.ifremer.fr/doc/00729/84133/89063.pdf https://archimer.ifremer.fr/doc/00729/84133/89064.docx LA English DT Article CR IMAGES 3-IPHIS-MD106 VT 90 / SOUC BO Marion Dufresne AB The millennial-scale variability of the Atlantic Meridional Overturning Circulation (AMOC) is well documented for the last glacial termination and beyond. Despite its importance for the climate system, the evolution of the South Pacific overturning circulation (SPOC) is by far less well understood. A recently published study highlights the potential applicability of the 231Pa/230Th-proxy in the Pacific. Here, we present five sedimentary down-core profiles of 231Pa/230Th-ratios measured on a depth transect from the Pacific sector of the Southern Ocean to test this hypothesis using downcore records. Our data are consistent with an increase in SPOC as early as 20 ka that peaked during Heinrich Stadial 1. The timing indicates that the SPOC did not simply react to AMOC changes via the bipolar seesaw but were triggered via Southern Hemisphere processes. PY 2021 PD OCT SO Scientific Reports SN 2045-2322 PU Springer Science and Business Media LLC VL 11 IS 1 UT 000707419500019 DI 10.1038/s41598-021-00111-1 ID 84133 ER EF