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Closed ocean gateways in the Canadian archipelago are key to glaciation in Scandinavia

In a simulation with a state-of-the-art climate model, obstruction of the ocean gateways in the Canadian archipelago due to ice-sheet growth reroutes currents and alters North Atlantic Ocean conditions, permitting glacial inception in Scandinavia. This mechanism could help to explain periods of rapid ice-sheet growth in Earth’s history.

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Fig. 1: Ice sheet extent and surface temperature anomaly with closed ocean gateways in the Canadian archipelago.

References

  1. Past Interglacials Working Group of PAGES. Interglacials of the last 800,000 years. Rev. Geophys. 54, 162–219 (2016). A review article on interglacial climates.

    Article  Google Scholar 

  2. Born, A., Kageyama, M. & Nisancioglu, K. Warm Nordic Seas delayed glacial inception in Scandinavia. Clim. Past. 6, 817–826 (2010). This paper shows modelling evidence that Scandinavia remains too warm for glacial inception to occur in periods of low summer radiation.

    Article  Google Scholar 

  3. Sommers, A. N. et al. Retreat and regrowth of the Greenland Ice Sheet during the Last Interglacial as simulated by the CESM2-CISM2 coupled climate–ice sheet model. Paleoceanogr. Paleoclimatol 36, e2021PA004272 (2021). This paper shows that vegetation feedbacks have an important role for the evolution of an ice sheet.

    Article  Google Scholar 

  4. Otto-Bliesner, B. L. et al. Amplified North Atlantic warming in the late Pliocene by changes in Arctic gateways. Geophys. Res. Lett. 44, 957–964 (2017). This paper shows that the North Atlantic Ocean cools substantially when the ocean gateways in the Canadian archipelago are closed.

    Article  Google Scholar 

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This is a summary of: Lofverstrom, M. et al. The importance of Canadian Arctic Archipelago gateways for glacial expansion in Scandinavia. Nat. Geosci. https://doi.org/10.1038/s41561-022-00956-9 (2022).

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Closed ocean gateways in the Canadian archipelago are key to glaciation in Scandinavia. Nat. Geosci. 15, 436–437 (2022). https://doi.org/10.1038/s41561-022-00959-6

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