Like the Arctic, the Southern Hemisphere high latitudes are home to a major land ice mass and seasonally varying sea ice cover. The Antarctic Ice Sheet is the world\u2019s largest and is buttressed by numerous floating ice shelves, while the sea ice cover of the Southern Ocean changes more dramatically between the winter and summer than in the Arctic. My colleagues and I have been researching the interactions between atmospheric extreme events and these components of the land and ocean cryosphere. We have found that repeated atmospheric river events in 2017 triggered the opening of a rare polynya in an area of the Southern Ocean preconditioned by oceanic conditions in previous years, and that a series of extreme cyclones contributed to the 2019 calving of a massive iceberg from the Amery Ice Shelf through their impact on sea surface slope. Future studies will further examine interactions between ocean-atmosphere coupled extreme events and the Antarctic cryosphere.<\/p>\n
![\"Weddell](\"http:\/\/sites.rutgers.edu\/kyle-mattingly\/wp-content\/uploads\/sites\/656\/2021\/04\/F20_Sci_Adv_fig_1.jpg\")
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