@Article{angeo-27-2937-2009, AUTHOR = {Hurd, L. and Larsen, M. F. and Liu, A. Z.}, TITLE = {Overturning instability in the mesosphere and lower thermosphere: analysis of instability conditions in lidar data}, JOURNAL = {Annales Geophysicae}, VOLUME = {27}, YEAR = {2009}, NUMBER = {7}, PAGES = {2937--2945}, URL = {http://www.ann-geophys.net/27/2937/2009/}, ISSN = {0992-7689} }