[A-AS06] Atmospheric (Stratosphere-troposphere) Processes And their Role in Climate

[AAS06-P04] Characteristics of planetary-wave packet propagation during a major sudden stratospheric warming event in January 2021 (third report)

*Yayoi Harada¹, Takenari Kinoshita², Kaoru Sato³, Toshihiko Hirooka⁴, Hitoshi Mukougawa⁵ (1. Meteorological Research Institute, 2. Japan Agency for Marine-Earth Science and Technology, 3. The University of Tokyo, 4. Kyushu University, 5. Kyoto University)

Keywords: Sudden stratospheric warming, Planetary-wave packet propagation, Three-dimensional wave activity flux, Linear stability analysis, Angular momentum balance analysis