de Wit, R., R. Hibbins, P. J. Espy, Y. J. Orsolini and V. Limpasuvan, Gravity wave forcing of the MLT region during the January 2013 stratospheric sudden warming: A vertical view of the atmosphere at 63°N, Poster presentation SA23A-2031, AGU Fall meeting 9-13 Dec, San Francisco, USA, 2013