Lecture Gravity wave momentum flux variability in the mesopause region during the 2013 major sudden stratospheric warming. de Wit, R.J.; Hibbins, R.; Espy, P.J.; Orsolini, Y.; Limpasuvan, V. Publication details Presented at the 11th Layered Phenomena in the Mesopause Region workshop, Leeds, 29 July-1 August, 2013.