Different Stratospheric Polar Vortex States linked to Cold-Spells in North America and Northern Eurasia

Marlene Kretschmer1, Judah Levi Cohen2, Jakob Runge3 and Dim Coumou1,4, (1)Potsdam Institute for Climate Impact Research, Potsdam, Germany, (2)Atmos and Environ Res Inc., Lexington, MA, United States, (3)Imperial College London, London, United Kingdom, (4)Vrije Universiteit Amsterdam, Amsterdam, Netherlands