Poster Abrupt Change in the Lower Thermospheric Mean Meridional Circulation during Sudden Stratospheric Warmings and its Impact on Trace Species Zhang, Jiarong; Orsolini, Yvan Joseph; Limpasuvan, Varavut Publikasjonsdetaljer Arrangement: AGU Fall Meeting (Chicago) Dato: 12. desember 2022 – 16. desember 2022