Planktic foraminiferal distribution and stable isotope ratios of sediment core MSM05/5_712-1 from the Arctic Ocean

• Main Authors: Spielhagen, Robert F, Werner, Kirstin, Sørensen, Steffen Aagaard, Zamelczyk, Katarzyna, Kandiano, Evgenia S, Budéus, Gereon, Husum, Katrine, Marchitto, Thomas M, Hald, Morten
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: CTD/Rosette; CTD-RO; Fram Strait; Giant box corer; GKG; Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; International Polar Year (2007-2008); IPY; Jan Mayen; JM06-WP; JM06-WP-02; Maria S. Merian; MSM05/5; MSM05/5_712-1; MSM05/5_713-1; North Greenland Sea; WarmPast 2006; Arctic; Arctic Ocean; Svalbard; Greenland; Foraminifera*; Global warming; Greenland Sea; International Polar Year; North Greenland; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.755114; https://doi.org/10.1594/PANGAEA.755114

The Arctic is responding more rapidly to global warming than most other areas on our planet. Northward flowing Atlantic Water is the major means of heat advection towards the Arctic and strongly affects the sea ice distribution. Records of its natural variability are critical for the understanding of feedback mechanisms and the future of the Arctic climate system, but continuous historical records reach back only ~150 years. Here, we present a multidecadal scale record of ocean temperature variations during the last 2000 years, derived from marine sediments off Western Svalbard (79°N). We find that early-21st-century temperatures of Atlantic Water entering the Arctic Ocean are unprecedented over the past 2000 years and are presumably linked to the Arctic Amplification of global warming.