Retrieval of stratospheric NOx from 5.3 and 6.2 μm nonlocal thermodynamic equilibrium emissions measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat

Bernd Funke, M. López-Puertas, T. von Clarmann, G. P. Stiller, H. Fischer, N. Glatthor, U. Grabowski, M. Höpfner, S. Kellmann, M. Kiefer, A. Linden, G. Mengistu Tsidu, M. Milz, T. Steck, D. Y. Wang

    Research output: Contribution to journalArticle

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    Abstract

    We present the first global observations of stratospheric NOx(= NO + NO2 ) from the Michelson Interferometer for Passive Atmosphenic Sounding (MIPAS) on Envisat during 24 July, 18 to 27 September, and 11 to 13 October 2002. Volume mixing ratio profiles of both NOx species were derived from MIPAS limb emission spectra by means of an innovative retrieval scheme under consideration of nonlocal thermodynamic equilibrium (non-LTE) effects. In the quiescent atmosphere, the estimated accuracy of retrieved NOx at the altitude of its stratospheric mixing ratio maximum at 35-40 km is around 1-2 ppbv, and the vertical resolution is around 3.5-6.5 km at altitudes between 20 and 50 km. In order to correctly consider NO2 non-LTE effects in the retrievals, the photochemical excitation rate of NO2(v3 > 0) vibrational states was derived from NO2(002→001) emissions and was found to be about 50 times smaller than previously estimated from Limb Infrared Monitor of the Stratosphere (LIMS) measurements. The NOx partitioning of the retrieved data is in excellent agreement with steady state photochemistry, which confirms predicted stratospheric NO(v > 0) non-LTE population enhancements. The retrieved NOx abundances are also consistent with Halogen Occultation Experiment (HALOE) NOx observations.

    Original languageEnglish
    Pages (from-to)1-13
    Number of pages13
    JournalJournal of Geophysical Research D: Atmospheres
    Volume110
    Issue number9
    DOIs
    Publication statusPublished - May 16 2005

    Fingerprint

    MIPAS
    atmospheric sounding
    Michelson interferometers
    Upper atmosphere
    thermodynamic equilibrium
    mixing ratios
    limbs
    mixing ratio
    thermodynamics
    retrieval
    limb
    Halogen Occultation Experiment
    Thermodynamics
    halogens
    photochemistry
    halogen
    stratosphere
    sounding
    interferometer
    vibrational states

    All Science Journal Classification (ASJC) codes

    • Geophysics
    • Oceanography
    • Forestry
    • Ecology
    • Aquatic Science
    • Water Science and Technology
    • Soil Science
    • Geochemistry and Petrology
    • Earth-Surface Processes
    • Atmospheric Science
    • Earth and Planetary Sciences (miscellaneous)
    • Space and Planetary Science
    • Palaeontology

    Cite this

    Funke, Bernd ; López-Puertas, M. ; von Clarmann, T. ; Stiller, G. P. ; Fischer, H. ; Glatthor, N. ; Grabowski, U. ; Höpfner, M. ; Kellmann, S. ; Kiefer, M. ; Linden, A. ; Tsidu, G. Mengistu ; Milz, M. ; Steck, T. ; Wang, D. Y. / Retrieval of stratospheric NOx from 5.3 and 6.2 μm nonlocal thermodynamic equilibrium emissions measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat. In: Journal of Geophysical Research D: Atmospheres. 2005 ; Vol. 110, No. 9. pp. 1-13.
    @article{cb576af4928540b390afe959ec0e18fb,
    title = "Retrieval of stratospheric NOx from 5.3 and 6.2 μm nonlocal thermodynamic equilibrium emissions measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat",
    abstract = "We present the first global observations of stratospheric NOx(= NO + NO2 ) from the Michelson Interferometer for Passive Atmosphenic Sounding (MIPAS) on Envisat during 24 July, 18 to 27 September, and 11 to 13 October 2002. Volume mixing ratio profiles of both NOx species were derived from MIPAS limb emission spectra by means of an innovative retrieval scheme under consideration of nonlocal thermodynamic equilibrium (non-LTE) effects. In the quiescent atmosphere, the estimated accuracy of retrieved NOx at the altitude of its stratospheric mixing ratio maximum at 35-40 km is around 1-2 ppbv, and the vertical resolution is around 3.5-6.5 km at altitudes between 20 and 50 km. In order to correctly consider NO2 non-LTE effects in the retrievals, the photochemical excitation rate of NO2(v3 > 0) vibrational states was derived from NO2(002→001) emissions and was found to be about 50 times smaller than previously estimated from Limb Infrared Monitor of the Stratosphere (LIMS) measurements. The NOx partitioning of the retrieved data is in excellent agreement with steady state photochemistry, which confirms predicted stratospheric NO(v > 0) non-LTE population enhancements. The retrieved NOx abundances are also consistent with Halogen Occultation Experiment (HALOE) NOx observations.",
    author = "Bernd Funke and M. L{\'o}pez-Puertas and {von Clarmann}, T. and Stiller, {G. P.} and H. Fischer and N. Glatthor and U. Grabowski and M. H{\"o}pfner and S. Kellmann and M. Kiefer and A. Linden and Tsidu, {G. Mengistu} and M. Milz and T. Steck and Wang, {D. Y.}",
    year = "2005",
    month = "5",
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    doi = "10.1029/2004JD005225",
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    Funke, B, López-Puertas, M, von Clarmann, T, Stiller, GP, Fischer, H, Glatthor, N, Grabowski, U, Höpfner, M, Kellmann, S, Kiefer, M, Linden, A, Tsidu, GM, Milz, M, Steck, T & Wang, DY 2005, 'Retrieval of stratospheric NOx from 5.3 and 6.2 μm nonlocal thermodynamic equilibrium emissions measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat', Journal of Geophysical Research D: Atmospheres, vol. 110, no. 9, pp. 1-13. https://doi.org/10.1029/2004JD005225

    Retrieval of stratospheric NOx from 5.3 and 6.2 μm nonlocal thermodynamic equilibrium emissions measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat. / Funke, Bernd; López-Puertas, M.; von Clarmann, T.; Stiller, G. P.; Fischer, H.; Glatthor, N.; Grabowski, U.; Höpfner, M.; Kellmann, S.; Kiefer, M.; Linden, A.; Tsidu, G. Mengistu; Milz, M.; Steck, T.; Wang, D. Y.

    In: Journal of Geophysical Research D: Atmospheres, Vol. 110, No. 9, 16.05.2005, p. 1-13.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Retrieval of stratospheric NOx from 5.3 and 6.2 μm nonlocal thermodynamic equilibrium emissions measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat

    AU - Funke, Bernd

    AU - López-Puertas, M.

    AU - von Clarmann, T.

    AU - Stiller, G. P.

    AU - Fischer, H.

    AU - Glatthor, N.

    AU - Grabowski, U.

    AU - Höpfner, M.

    AU - Kellmann, S.

    AU - Kiefer, M.

    AU - Linden, A.

    AU - Tsidu, G. Mengistu

    AU - Milz, M.

    AU - Steck, T.

    AU - Wang, D. Y.

    PY - 2005/5/16

    Y1 - 2005/5/16

    N2 - We present the first global observations of stratospheric NOx(= NO + NO2 ) from the Michelson Interferometer for Passive Atmosphenic Sounding (MIPAS) on Envisat during 24 July, 18 to 27 September, and 11 to 13 October 2002. Volume mixing ratio profiles of both NOx species were derived from MIPAS limb emission spectra by means of an innovative retrieval scheme under consideration of nonlocal thermodynamic equilibrium (non-LTE) effects. In the quiescent atmosphere, the estimated accuracy of retrieved NOx at the altitude of its stratospheric mixing ratio maximum at 35-40 km is around 1-2 ppbv, and the vertical resolution is around 3.5-6.5 km at altitudes between 20 and 50 km. In order to correctly consider NO2 non-LTE effects in the retrievals, the photochemical excitation rate of NO2(v3 > 0) vibrational states was derived from NO2(002→001) emissions and was found to be about 50 times smaller than previously estimated from Limb Infrared Monitor of the Stratosphere (LIMS) measurements. The NOx partitioning of the retrieved data is in excellent agreement with steady state photochemistry, which confirms predicted stratospheric NO(v > 0) non-LTE population enhancements. The retrieved NOx abundances are also consistent with Halogen Occultation Experiment (HALOE) NOx observations.

    AB - We present the first global observations of stratospheric NOx(= NO + NO2 ) from the Michelson Interferometer for Passive Atmosphenic Sounding (MIPAS) on Envisat during 24 July, 18 to 27 September, and 11 to 13 October 2002. Volume mixing ratio profiles of both NOx species were derived from MIPAS limb emission spectra by means of an innovative retrieval scheme under consideration of nonlocal thermodynamic equilibrium (non-LTE) effects. In the quiescent atmosphere, the estimated accuracy of retrieved NOx at the altitude of its stratospheric mixing ratio maximum at 35-40 km is around 1-2 ppbv, and the vertical resolution is around 3.5-6.5 km at altitudes between 20 and 50 km. In order to correctly consider NO2 non-LTE effects in the retrievals, the photochemical excitation rate of NO2(v3 > 0) vibrational states was derived from NO2(002→001) emissions and was found to be about 50 times smaller than previously estimated from Limb Infrared Monitor of the Stratosphere (LIMS) measurements. The NOx partitioning of the retrieved data is in excellent agreement with steady state photochemistry, which confirms predicted stratospheric NO(v > 0) non-LTE population enhancements. The retrieved NOx abundances are also consistent with Halogen Occultation Experiment (HALOE) NOx observations.

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