Consistently dated Atlantic sediment cores over the last 40 thousand years. ...

• Main Authors: Waelbroeck, Claire, Lougheed, Bryan C, Vazquez Riveiros, Natalia, Missiaen, Lise, Pedro, Joel, Dokken, Trond, Hajdas, Irka, Wacker, Lukas, Abbott, Peter, Dumoulin, Jean-Pascal, Thil, François, Eynaud, Frédérique, Rossignol, Linda, Fersi, Wiem, Albuquerque, Ana Luiza, Arz, Helge, Austin, William EN, Came, Rosemarie, Carlson, Anders E, Collins, James A, Dennielou, Bernard, Desprat, Stéphanie, Dickson, Alex, Elliot, Mary, Farmer, Christa, Giraudeau, Jacques, Gottschalk, Julia, Henderiks, Jorijntje, Hughen, Konrad, Jung, Simon, Knutz, Paul, Lebreiro, Susana, Lund, David C, Lynch-Stieglitz, Jean, Malaizé, Bruno, Marchitto, Thomas, Martínez-Méndez, Gema, Mollenhauer, Gesine, Naughton, Filipa, Nave, Silvia, Nürnberg, Dirk, Oppo, Delia, Peck, Victoria, Peeters, Frank JC, Penaud, Aurélie, Portilho-Ramos, Rodrigo Da Costa, Repschläger, Janne, Roberts, Jenny, Rühlemann, Carsten, Salgueiro, Emilia
• Format: Article in Journal/Newspaper
• Language: English
• Published: Springer Nature 2019
• Subjects: 37 Earth Sciences; 3709 Physical Geography and Environmental Geoscience; 3705 Geology; 14 Life Below Water; 13 Climate Action; Greenland; ice core
• Online Access: https://dx.doi.org/10.17863/cam.46160; https://www.repository.cam.ac.uk/handle/1810/299098

Rapid changes in ocean circulation and climate have been observed in marine-sediment and ice cores over the last glacial period and deglaciation, highlighting the non-linear character of the climate system and underlining the possibility of rapid climate shifts in response to anthropogenic greenhouse gas forcing. To date, these rapid changes in climate and ocean circulation are still not fully explained. One obstacle hindering progress in our understanding of the interactions between past ocean circulation and climate changes is the difficulty of accurately dating marine cores. Here, we present a set of 92 marine sediment cores from the Atlantic Ocean for which we have established age-depth models that are consistent with the Greenland GICC05 ice core chronology, and computed the associated dating uncertainties, using a new deposition modeling technique. This is the first set of consistently dated marine sediment cores enabling paleoclimate scientists to evaluate leads/lags between circulation and climate ...