Abstract: everal studies show that the anomalous long-lasting Russian heat wave during the summer of 2010, linked to a long-persistent blocking high, appears mainly as a result of natural atmospheric variability. This study analyzes ...

Abstract: ropospheric forcing of planetary wavenumber 2 is examined in the prephase of the major stratospheric sudden warming event in January 2009 (MSSW 2009). Because of a huge increase in Eliassen?Palm fluxes induced mainly by ...

Abstract: AbstractThe vertical coupling between the stratosphere and the mesosphere is diagnosed from polar cap temperatures averaged over 60°?90°N with a new method: the joint occurrence of a warm stratosphere at 10 hPa and a cold ...