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Stratospheric methane (CH4) profiles have been derived from solar occultationmeasurements of the SCanning Imaging Absorption spectroMeter for AtmosphericCHartographY (SCIAMACHY) on ENVISAT with an updated version of the OnionPeeling DOAS (ONPD) method.The SCIAMACHY solar occultation measurements cover the latitudinalrange between about 50° N and 70° N.Currently, reasonable results are obtained between 20 and 40 km altitude.Comparisons with correlative ACE-FTS measurements show an average agreement withinthe expected accuracy of the ACE-FTS data of about 10%.To demonstrate the capability of SCIAMACHY solar occultation measurements inthe context of greenhouse gas monitoring, time series of stratosphericCH4 profiles covering the period from 2003 to 2010 have been generated.The SCIAMACHY CH4 profile solar occultation temporal seriesshows a strong seasonal cycle.This is attributed to the variations in both time and space of the retrieveddata set.At lower altitudes, the observed temporal variations are explained byvariations of the tropopause height.The temporal data set is also impacted by variations of the size and durationof the polar vortex in the northern hemisphere.The data set provides unique information about CH4 changes in thestratosphere at mid to high latitudes

Stratospheric methane profiles from SCIAMACHY solar occultation measurements derived with onion peeling DOAS