Earth Sciences

The role of ocean and atmospheric dynamics in the marine-based collapse of the last Eurasian Ice Sheet

H. P. Sejrup, B. O. Hjelstuen, et al.

This groundbreaking study by Hans Petter Sejrup and colleagues reconstructs the last deglaciation of the Eurasian Ice Sheet's marine sectors, revealing how ocean-ice-atmosphere dynamics critically influence our understanding of contemporary ice sheets. Explore the nonlinear responses of these massive ice formations and their implications for rising sea levels.

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Abstract

This study reconstructs the last deglaciation of the Eurasian Ice Sheet's marine sectors, focusing on the retreat of the Norwegian Channel and Barents Sea ice streams. The deglaciation, from a peak volume equivalent to 20 m of sea-level rise, was primarily driven by temperature-forced surface mass balance in the south and Nordic Seas oceanic conditions in the north. The findings highlight the nonlinear response of ice sheets to forcing and the importance of ocean-ice-atmosphere dynamics in assessing the fate of contemporary ice sheets.

Publisher

Communications Earth & Environment

Published On

May 19, 2022

Authors

Hans Petter Sejrup, Berit Oline Hjelstuen, Henry Patton, Mariana Esteves, Monica Winsborrow, Tine Lander Rasmussen, Karin Andreassen, Alun Hubbard

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