Arctic Earth System

The high latitudes are regions of extremes. The interactions between the ocean, atmosphere, cryosphere and marine ecosystems are intense, but greatly influence the global climate system. Our HiLAT-RASM project aims to understand these interactions and feedbacks, and the associated impacts on the climate system.

Our focus is on understanding the coupled Arctic Earth system from a modeling perspective. In Veneziani et al. (2022) we present a novel Arctic-refined configuration of DOE's flagship Energy Exascale Earth System Model (E3SM). This configuration has standard resolution over most of the globe, but a 10 km resolution in the Arctic Ocean and subpolar North Atlantic.

In Zhang et al. (2021) we study the fate of freshwater from the Beaufort Gyre. We find that, if the current store of freshwater in the Beaufort Gyre is released, it would significantly impact the salinity in the Labrador Sea, with potential implications for the Atlantic Meridional Overturning Circulation.