Changes in Extreme Temperature and Precipitation over the Southern Extratropical Continents in Response to Antarctic Sea Ice Loss

• DOI: 10.1175/jcli-d-22-0577.1
• Publication Date: 2023-03-23T16:30:57Z
• Authors: Zhu Zhu; Jiping Liu; Mirong Song; Yongyun Hu
• Keywords: Extratropical cyclone; Ice-albedo feedback

Abstract Current climate models project that Antarctic sea ice will decrease by the end of twenty-first century. Previous studies have suggested changes impacts on atmospheric circulation and mean state Southern Hemisphere. However, little is known about whether loss may a tangible impact extremes over southern continents ocean–atmosphere coupling plays an important role in continents. In this study, we conduct set fully coupled atmosphere-only model experiments forced present future cover. It found projected century leads to increase frequency duration warm (especially nights) cold most regions. The wet are South America Antarctica, whereas dry days longest spell vary with Further under quadrupling CO 2 similar but larger changes. Comparison between suggests ocean dynamics their interactions atmosphere induced play key driving identified temperature precipitation By comparing global warming experiments, find affect for some regions greenhouse warming, especially Antarctica.