Frank Lamy, Gisela Winckler, Helge W Arz, Jesse R Farmer, Julia Gottschalk, Lester Lembke-Jene, Jennifer L Middleton, Michèlle van der Does, Ralf Tiedemann, Carlos Alvarez Zarikian, Chandranath Basak, Anieke Brombacher, Levin Dumm, Oliver M Esper, Lisa C Herbert, Shinya Iwasaki, Gaston Kreps, Vera J Lawson, Li Lo, Elisa Malinverno, Alfredo Martinez-Garcia, Elisabeth Michel, Simone Moretti, Christopher M Moy, Ana Christina Ravelo, Christina R Riesselman, Mariem Saavedra-Pellitero, Henrik Sadatzki, Inah Seo, Raj K Singh, Rebecca A Smith, Alexandre L Souza, Joseph S Stoner, Maria Toyos, Igor M Venancio P de Oliveira, Sui Wan, Shuzhuang Wu, Xiangyu Zhao
The Antarctic Circumpolar Current (ACC) represents the world's largest ocean-current system and affects global ocean circulation, climate and Antarctic ice-sheet stability1-3 . Today, ACC dynamics are controlled by atmospheric forcing, oceanic density gradients and eddy activity4 . Whereas palaeoceanographic reconstructions exhibit regional heterogeneity in ACC position and strength over Pleistocene glacial-interglacial cycles5-8 , the long-term evolution of the ACC is poorly known. Here we document changes in ACC strength from sediment cores in the Pacific Southern Ocean...
March 2024: Nature