Connecting Antarctic sea ice and mid-latitude precipitation

Over the Northern Hemisphere, Arctic sea ice variability exerts an influence on moisture transport both in and out of the high latitudes and has impacts on midlatitude precipitation, communicated by effects on large-scale atmospheric circulation. The intensity, timing, and predictability of these connections carry heavy implications for research into cryosphere-atmosphere dynamics and the social impacts of climate change. However, consensus on the relationship between Arctic warming and related sea ice loss and changes in midlatitude circulation is challenging, especially when trying to synthesize observational and modeling studies. While recent efforts have focused on linkages in the Northern Hemisphere, the analogous impacts of Antarctic sea ice variability are less studied, despite evidence for their existence. Here, we explore the teleconnections between Antarctic sea ice area variability and midlatitude precipitation by utilizing a combination of observational, reanalysis, and model simulations, including the PAMIP ensemble. Ongoing work utilizes simulations from PAMIP to explore the relationship between sea ice area and precipitation, alongside mediating atmospheric patterns and their evolution over time, including projections of future climate dynamics.