Sea-surface temperature reconstructions over 30-40 ka, supplement data to Jensen et al. 2018 ...

• Main Authors: Jensen, Mari F, Nummelin, Aleksi, Nielsen, Søren B, Sadatzki, Henrik, Sessford, Evangeline, Risebrobakken, Bjørg, Andersson, Carin, Voelker, Antje H L, Roberts, William H G, Pedro, Joel B, Born, Andreas
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2018
• Subjects: Dansgaard-Oeschger events; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.890893; https://doi.pangaea.de/10.1594/PANGAEA.890893

Here we establish a spatio-temporal evolution of the sea-surface temperatures in the North Atlantic over Dansgaard-Oeschger (DO) events 5-8 (c.30-40ka) using the proxy surrogate reconstruction method. Proxy data suggest a large variability in North Atlantic sea-surface temperatures during the DO-events of the last glacial period. However, proxy data availability is limited and cannot provide a full spatial picture of the oceanic changes. Therefore, we combine fully coupled, general circulation model simulations with planktic foraminifera based sea-surface temperature reconstructions to obtain a broader spatial picture of the ocean state during DO-events 5-8. The resulting spatial sea-surface temperature patterns agree over a number of different general circulation models and simulations. We find that sea-surface temperature variability over the DO-events is characterized by colder conditions in the subpolar North Atlantic during stadials than during interstadials, and the variability is linked to changes in ... : Supplement to: Jensen, Mari F; Nummelin, Aleksi; Nielsen, Søren B; Sadatzki, Henrik; Sessford, Evangeline; Risebrobakken, Bjørg; Andersson, Carin; Voelker, Antje H L; Roberts, William H G; Pedro, Joel B; Born, Andreas (2018): A spatiotemporal reconstruction of sea-surface temperatures in the North Atlantic during Dansgaard–Oeschger events 5–8. Climate of the Past, 14(6), 901-922 ...