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ANTARCTIC OZONE LOSS IN SEPTEMBER–OCTOBER 2021

. Ground-based and satellite ozone data are used to estimate the Antarctic ozone decrease in September–October 2021. Antarctic station Vernadsky (Ukraine) locates in the edge region of the ozone hole. Since the ozone hole edge is shifted by planetary waves, on some days the station appears either inside or outside the ozone hole. The measurements inside/outside the ozone hole made with the Dobson spectrophotometer at the station (total ozone) and the Aura MLS satellite (vertical ozone profile) are compared. The altitudes of the maximum ozone loss have been established.