Using the FURM retrieval algorithm, vertical ozone distributions in the northern hemisphere during the Arctic winter/spring seasons 1996/1997 and 1997/1998 were derived from GOME satellite data. Low ozone concentrations in the lower and middle stratosphere were measured by GOME inside the polar vortex during spring 1997. GOME ozone profiles have been successfully analyzed to identify an ozone mini-hole event in early March 1998. Investigations to quantify the possible chemical and dynamical loss processes from the GOME height-resolved ozone distribution will be prepared.
