Mixing between a stratospheric intrusion and a biomass burning plume.

Brioude, J.; Cooper, O.R.; Trainer, M.; Ryerson, T.B.; Holloway, J.S.; Baynard, T.; Peischl, J.; Warneke, C.; Neuman, J.A.; De Gouw, J.; Stohl, A.; Eckhardt, S.; Frost, G.J.; McKeen, S.A.; Hsie, E.-Y.; Fehsenfeld, F.C.; Nédélec, P.