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The evaluation of sciamachy CO and CH4 scientific data products, using ground-based FTIR measurements

dc.contributor.authorDils, B.
dc.contributor.authorDe Mazière, M.
dc.contributor.authorMüller, J.F.
dc.contributor.authorBuchwitz, M.
dc.contributor.authorDe Beek, R.
dc.contributor.authorFrankenberg, C.
dc.contributor.authorGloudemans, A.
dc.contributor.authorSchrijver, H.
dc.contributor.authorVan Den Broek, M.
dc.date2006
dc.date.accessioned2016-11-22T15:02:19Z
dc.date.available2016-11-22T15:02:19Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/4531
dc.descriptionIn the framework of the European EVERGREEN project, three scientific algorithms, namely WFM-DOAS, IMAP-DOAS and IMLM, have been developed to retrieve the total column amounts of key atmospheric trace gases including CO and CH4 from SCIAMACHY nadir observations in its near-infrared channels. These channels offer the capability to detect trace gases in the planetary boundary layer, potentially making the associated retrieval products suited for regional source-sink studies. The retrieval products of these three algorithms, in their present status of development, have been compared to independent data from a ground-based quasi-global network of Fourier-transform infrared (FTIR) spectrometers, for the year 2003. Comparisons have been made for individual data, as well as for monthly averages. To maximize the number of coincidences that satisfy the temporal and spatial collocation criteria, the individual SCIAMACHY data points have been compared with a 3rd order polynomial interpolation of the ground-based data with time. Particular attention has been paid to the question whether the products reproduce correctly the seasonal and latitudinal variabilities of the target species. We present an overall assessment of the data quality of the currently available latest versions of the CO and CH4 total column products from the three scientific retrieval algorithms.
dc.languageeng
dc.relation.ispartofseriesESA SP
dc.titleThe evaluation of sciamachy CO and CH4 scientific data products, using ground-based FTIR measurements
dc.typeConference
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeAlgorithms
dc.subject.freeCarbon monoxide
dc.subject.freeData reduction
dc.subject.freeFourier transform infrared spectroscopy
dc.subject.freeMethane
dc.subject.freePolynomial approximation
dc.subject.freeTrace analysis
dc.subject.freeAtmospheric trace gases
dc.subject.freeNear infrared channels
dc.subject.freePlanetary boundary layers
dc.subject.freePolynomial interpolation
dc.subject.freeAtmospheric chemistry
dc.source.titleProceedings of the First Atmospheric Science Conference
dc.source.issue628
Orfeo.peerreviewedNo
dc.identifier.scopus2-s2.0-33749177375


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