Wednesday,  10  July 2002

Session S5O   Middle Atmosphere Physics and Chemistry
                           Oral Presentations  

        Chairs : Allan Carswell and Gelsomina Pappalardo

        10:45     On the Formation of NAT Particles in the Arctic Stratosphere
                      Flentje, Harald; Birner, Thomas and Poberaj, Gorazd

        11:00     Evidence for Gravity Wave Interactions with a Mesospheric
                      Inversion Layer
                      Duck, Thomas J.

        11:15     Antarctic Ozone Loss Deduced from Lidar Measurements in
                      Dumont d’Urville (66.4°S, 140°E)
                      Godin-Beekmann, Sophie; Bekki, Slimane and Garnier, Anne

        11:30     Cyclicity of Ozonosphere Variations
                      Zuev, V.V.; Dolgii, S.I. and Bondarenko, S.L.

        11:45     Continuous Observations of Mesosperic Na Layers by a Lidar
                      Nagasawa, Chikao; Abo, Makoto and Shibata, Yasukuni