Date: Wednesday, May 15, 2024
Time: 03:30 pm
Sponsored / Hosted by
Gudrun Magnusdottir

Department Seminar: Lily Hahn

Wednesday, May 15, 2024 | 03:30 pm
Lily Hahn
Postdoctoral Scholar
Event Details

Title: Role of atmosphere-ocean-ice interactions for warming in the Arctic and beyond

Abstract: The Arctic has warmed up to four times faster than the global average in recent decades, yet there is still debate over the drivers of polar-amplified warming, how they interact with each other, and their relative importance. We investigate the role of sea ice for Arctic warming and its seasonality using experiments in idealized and comprehensive climate models. We also examine the role of intermodel spread in ocean circulation changes, specifically the Atlantic Meridional Overturning Circulation, for warming in the Arctic and globally. The results highlight key mechanisms by which sea ice and ocean circulation mediate atmospheric feedbacks and warming under increased climate forcing.

The Department of Earth System Science acknowledges our presence on the ancestral and unceded territory of the Acjachemen and Tongva peoples, who still hold strong cultural, spiritual and physical ties to this region.