Zonally uniform tidal oscillations in the tropical middle atmosphere

Takatoshi Sakazaki1, Takuya Sasaki1, Masato Shiotani1, Yoshihiro Tomikawa2 and Douglas Edward Kinnison3, (1)Kyoto University, Kyoto, Japan, (2)NIPR National Institute of Polar Research, Tachikawa, Tokyo, Japan, (3)National Center for Atmospheric Research, Boulder, United States