TY CONF TI Role of sulfur dioxide in stratospheric polar cloud formation and ozone destruction in the winter-spring stratosphere of the Arctic using Aura MLS observations KW ozone KW sudden stratospheric warming KW polar night KW sulfur dioxide KW temperature KW Aura MLS observations KW mixing ratio profiles JO The XXXI International Symposium "Atmospheric and Ocean Optics. Atmospheric Physics" AU Nevzorov, A.V. AU Bazhenov, O.E. PY 2025 PB V.E. Zuev Institute of Atmospheric Optics, Siberian Branch of the Russian Academy of Sciences