Poster Abrupt Change in the Lower Thermospheric Mean Meridional Circulation during Sudden Stratospheric Warmings and its Impact on Trace Species Orsolini, Yvan Joseph; Zhang, Jiarong; Limpasuvan, Varavut Publication details Event: EGU General Assembly 2023 (Vienna & online) Date: April 23rd 2023 – April 28th 2023