Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 9 1 2009 10.5194/acpd-9-1703-2009 http://www.atmos-chem-phys-discuss.net/9/1703/2009/ http://www.atmos-chem-phys-discuss.net/9/1703/2009/acpd-9-1703-2009.html http://www.atmos-chem-phys-discuss.net/9/1703/2009/acpd-9-1703-2009.pdf 1703 1726 2009-01-16 Antarctic stratospheric warming since 1979 Y. Hu Q. Fu Department of Atmospheric Sciences, Peking University, Beijing, China Department of Atmospheric Sciences, University of Washington, Seattle, USA In the present study, we show evidence of significant stratospheric warming over large portions of the Antarctic polar region in winter and spring seasons, with a maximum warming of 7–8°C in September and October, using satellite Microwave Sounding Unit observations for 1979–2006. 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