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Six years of total ozone column measurements from SCIAMACHY nadir observations

dc.contributor.authorLerot, C.
dc.contributor.authorVan Roozendael, M.
dc.contributor.authorVan Geffen, J.
dc.contributor.authorVan Gent, J.
dc.contributor.authorFayt, C.
dc.contributor.authorSpurr, R.
dc.contributor.authorLichtenberg, G.
dc.contributor.authorVon Bargen, A.
dc.date2009
dc.date.accessioned2016-04-05T11:22:55Z
dc.date.available2016-04-05T11:22:55Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3274
dc.descriptionTotal O3 columns have been retrieved from six years of SCIAMACHY nadir UV radiance measurements using SDOAS, an adaptation of the GDOAS algorithm previously developed at BIRA-IASB for the GOME instrument. GDOAS and SDOAS have been implemented by the German Aerospace Center (DLR) in the version 4 of the GOME Data Processor (GDP) and in version 3 of the SCIAMACHY Ground Processor (SGP), respectively. The processors are being run at the DLR processing centre on behalf of the European Space Agency (ESA). We first focus on the description of the SDOAS algorithm with particular attention to the impact of uncertainties on the reference O3 absorption cross-sections. Second, the resulting SCIAMACHY total ozone data set is globally evaluated through large-scale comparisons with results from GOME and OMI as well as with ground-based correlative measurements. The various total ozone data sets are found to agree within 2% on average. However, a negative trend of 0.2-0.4%/year has been identified in the SCIAMACHY O3 columns; this probably originates from instrumental degradation effects that have not yet been fully characterized.
dc.languageeng
dc.titleSix years of total ozone column measurements from SCIAMACHY nadir observations
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeabsorption
dc.subject.freealgorithm
dc.subject.freeatmospheric chemistry
dc.subject.freeGOME
dc.subject.freenadir
dc.subject.freeozone
dc.subject.freeSCIAMACHY
dc.subject.freetrend analysis
dc.subject.freeultraviolet radiation
dc.subject.freeuncertainty analysis
dc.source.titleAtmospheric Measurement Techniques
dc.source.volume2
dc.source.issue1
dc.source.page87-98
Orfeo.peerreviewedYes
dc.identifier.scopus2-s2.0-74049138583


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