%0 Journal Article %T A 2003 stratospheric aerosol extinction and PSC climatology from GOMOS measurements on Envisat %A F. Vanhellemont %A D. Fussen %A C. Bingen %A E. Kyr£¿l£¿ %J Atmospheric Chemistry and Physics Discussions %D 2005 %I Copernicus Publications %X Stratospheric aerosols play an important role in a number of atmospheric issues such as midlatitude ozone depletion, atmospheric dynamics and the Earth radiative budget. Polar stratospheric clouds on the other hand are a crucial factor in the yearly Arctic 5 and Antarctic ozone depletion. It is therefore important to quantify the stratospheric aerosol/PSC abundance. In orbit since March 2002, the GOMOS instrument onboard the European Envisat satellite has provided a vast aerosol extinction data set. In this paper we present an aerosol/PSC climatology that was constructed from this data set, together with a discussion of the results. %U http://www.atmos-chem-phys-discuss.net/5/863/2005/acpd-5-863-2005.pdf