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Retrieval of GOMOS bright limb ozone profiles

Simo Tukiainen(1)

(1) Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland

Abstract

GOMOS is a stellar occultation instrument on board the Envisat satellite. During day time occulations the limb scattered sunlight spectra is also recorded. This limb signal can be used to retrieve vertical profiles of ozone between around 20 and 60 km.

We present ozone profiles retrieved from the GOMOS limb data using the modified onion peeling inversion method. In the retrieval we use an accurate single scattering forward model and a look up table for the multiple scattering correction. The look up table is produced using the Monte Carlo radiative transfer model Siro.