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    Ozone profile retrieval from GOMOS limb scattering measurements

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    Authors
    Taha, G.
    Jaross, G.
    Fussen, D.
    Vanhellemont, F.
    Kyrölä, E.
    McPeters, R.D.
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    Discipline
    Physical sciences
    Subject
    Algorithms
    Atmospheric chemistry
    Estimation
    Monitoring
    Ozone
    Scattering
    Upper atmosphere
    accuracy assessment
    algorithm
    data acquisition
    estimation method
    limb
    ozone
    performance assessment
    radiance
    satellite data
    scattering
    uncertainty analysis
    zenith angle
    Audience
    Scientific
    Date
    2008
    Metadata
    Show full item record
    Description
    We analyzed a set of Global Ozone Monitoring by Occultation of Stars (GOMOS) bright limb measurements with solar zenith angles less than 85° and within 150 km of Stratospheric Aerosol and Gas Experiment II (SAGE II) measurements. In order to perform any species retrieval, GOMOS measurements were first corrected for stray light contamination. GOMOS pointing was analyzed using scene-based tangent height algorithms, and the best results were achieved using ∼350 nm (Rayleigh) pixels that were consistent with GOMOS known accurate pointing. In order to demonstrate GOMOS bright limb capabilities, ozone profile retrievals were performed using GOMOS measurements of limb-scattered radiances with the Ozone Mapping and Profiler Suite limb profiler algorithm. The algorithm performs a simultaneous optimal estimation inversion of both Hartley-Huggins and Chappuis band radiances. We restricted our GOMOS ozone retrievals to the range 25-53 km, a region of relatively constant measurement uncertainty. In this first look at GOMOS limb data, the retrieved ozone profiles agree with collocated SAGE II measurements on average to within 10-15% and with a standard deviation of 10%. Retrieval results were consistent for both upper and lower GOMOS detector bands.
    Citation
    Taha, G.; Jaross, G.; Fussen, D.; Vanhellemont, F.; Kyrölä, E.; McPeters, R.D. (2008). Ozone profile retrieval from GOMOS limb scattering measurements. , Journal of Geophysical Research Atmospheres, Vol. 113, Issue 23, D23307, DOI: 10.1029/2007JD009409.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4312
    doi: http://dx.doi.org/10.1029/2007JD009409
    scopus: 2-s2.0-59749087524
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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