... PhysicsDiscussions Air pollution during the 2003 European heat wave as seen by MOZAIC airliners M. Tressol1, C. Ordonez1, R. Zbinden1, V. Thouret1, C. Mari1, P. Nedelec1,J P. Cammas1, H. ... altitude. During the passage of the extratropical cy-clone in the heart of the heat wave period, the change of air masses and the loweringof the top of the planetar y boundary layer reduces the height ... found until 15 August 2003, and the last plume isfound around 18 August 2003 after the end of the heat wave period. During the sec-ond sub-period of the heat wave, biomass burning can contribute...