Validation of MIPAS/ENVISAT level-1B data products

G. Mengistu Tsidu, M. Kiefer, T. V. Clarmann, H. Fischer, B. Funke, U. Grabowski, F. Hase, M. Höpfner, M. López-Puertas, G. P. Stiller

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Spectral limb radiances measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the Envisat Environmental research satellite are characterized in terms of instrument line shape (ILS), noise equivalent spectral radiance (NESR) and possible impact of non-local thermodynamic equilibrium emission in deep space calibration spectra. Furthermore, it is assessed if the operational processing baseline to set the top of the model atmosphere to 120 km is justified. The major findings are: The ILS parametrization provided along with the measurement data is sub-optimal; spectral residuals can be reduced by application of an ILS correction function. Spectral noise as estimated in this study is systematically lower than the values provided along with the measurement data. There is no evidence for significant noise correlations in the spectral domain. There is no indication of non-local thermodynaic equilibrium induced upper atmospheric signal in the so-called "deep-space" spectra which are used for the radiometric zero-level calibration.

    Original languageEnglish
    Pages (from-to)483-496
    Number of pages14
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Volume4891
    DOIs
    Publication statusPublished - 2002

    Fingerprint

    atmospheric sounding
    Michelson Interferometer
    Michelson interferometers
    data products
    line shape
    deep space
    radiance
    Environmental Research Satellites
    Calibration
    Radiance
    thermodynamic equilibrium
    Line
    white noise
    limbs
    indication
    Satellites
    Thermodynamics
    Thermodynamic Equilibrium
    atmospheres
    Parametrization

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering

    Cite this

    Tsidu, G. M., Kiefer, M., Clarmann, T. V., Fischer, H., Funke, B., Grabowski, U., ... Stiller, G. P. (2002). Validation of MIPAS/ENVISAT level-1B data products. Proceedings of SPIE - The International Society for Optical Engineering, 4891, 483-496. https://doi.org/10.1117/12.467524
    Tsidu, G. Mengistu ; Kiefer, M. ; Clarmann, T. V. ; Fischer, H. ; Funke, B. ; Grabowski, U. ; Hase, F. ; Höpfner, M. ; López-Puertas, M. ; Stiller, G. P. / Validation of MIPAS/ENVISAT level-1B data products. In: Proceedings of SPIE - The International Society for Optical Engineering. 2002 ; Vol. 4891. pp. 483-496.
    @article{3568b4b7f80d40ebbd1a8fb614f94dee,
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    abstract = "Spectral limb radiances measured by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard the Envisat Environmental research satellite are characterized in terms of instrument line shape (ILS), noise equivalent spectral radiance (NESR) and possible impact of non-local thermodynamic equilibrium emission in deep space calibration spectra. Furthermore, it is assessed if the operational processing baseline to set the top of the model atmosphere to 120 km is justified. The major findings are: The ILS parametrization provided along with the measurement data is sub-optimal; spectral residuals can be reduced by application of an ILS correction function. Spectral noise as estimated in this study is systematically lower than the values provided along with the measurement data. There is no evidence for significant noise correlations in the spectral domain. There is no indication of non-local thermodynaic equilibrium induced upper atmospheric signal in the so-called {"}deep-space{"} spectra which are used for the radiometric zero-level calibration.",
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    Tsidu, GM, Kiefer, M, Clarmann, TV, Fischer, H, Funke, B, Grabowski, U, Hase, F, Höpfner, M, López-Puertas, M & Stiller, GP 2002, 'Validation of MIPAS/ENVISAT level-1B data products', Proceedings of SPIE - The International Society for Optical Engineering, vol. 4891, pp. 483-496. https://doi.org/10.1117/12.467524

    Validation of MIPAS/ENVISAT level-1B data products. / Tsidu, G. Mengistu; Kiefer, M.; Clarmann, T. V.; Fischer, H.; Funke, B.; Grabowski, U.; Hase, F.; Höpfner, M.; López-Puertas, M.; Stiller, G. P.

    In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 4891, 2002, p. 483-496.

    Research output: Contribution to journalArticle

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    AU - Tsidu, G. Mengistu

    AU - Kiefer, M.

    AU - Clarmann, T. V.

    AU - Fischer, H.

    AU - Funke, B.

    AU - Grabowski, U.

    AU - Hase, F.

    AU - Höpfner, M.

    AU - López-Puertas, M.

    AU - Stiller, G. P.

    PY - 2002

    Y1 - 2002

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