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    Nighttime ozone profiles in the stratosphere and mesosphere by the Global Ozone Monitoring by Occultation of Stars on Envisat

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    Authors
    Kyrölä, E.
    Tamminen, J.
    Leppelmeier, G.W.
    Sofieva, V.
    Hassinen, S.
    Seppälä, A.
    Verronen, P.T.
    Bertaux, J.L.
    Hauchecorne, A.
    Dalaudier, F.
    Fussen, D.
    Vanhellemont, F.
    Fanton d'Andon, O.
    Barrot, G.
    Mangin, A.
    Theodore, B.
    Guirlet, M.
    Koopman, R.
    Saavedra de Miguel, L.
    Snoeij, P.
    Fehr, T.
    Meijer, Y.
    Fraisse, R.
    Show allShow less
    Discipline
    Earth and related Environmental sciences
    Subject
    Climate change
    Climatology
    Meteorological instruments
    Ozone
    Ozone layer
    Upper atmosphere
    Envisat-1
    GOME
    mesosphere
    mixing ratio
    ozone
    seasonal variation
    stratosphere
    Audience
    Scientific
    Date
    2006
    Metadata
    Show full item record
    Description
    The Global Ozone Monitoring by Occultation of Stars (GOMOS) instrument on board the European Space Agency's Envisat satellite measures ozone and a few other trace gases using the stellar occultation method. Global coverage, good vertical resolution and the self-calibrating measurement method make GOMOS observations a promising data set for building various climatologies. In this paper we present the nighttime stratospheric ozone distribution measured by GOMOS in 2003. We show monthly latitudinal distributions of the ozone number density and mixing ratio profiles, as well as the seasonal variations of profiles at several latitudes. The stratospheric profiles are compared with the Fortuin-Kelder daytime ozone climatology. Large differences are found in polar areas and they can be shown to be correlated with large increases of NO2. In the upper stratosphere, ozone values from GOMOS are systematically larger than in the Fortuin-Kelder climatology, which can be explained by the diurnal variation. In the middle and lower stratosphere, GOMOS finds a few percent less ozone than Fortuin-Kelder. In the equatorial area, at heights of around 15-22 km, GOMOS finds much less ozone than Fortuin-Kelder. For the mesosphere and lower thermosphere, there has previously been no comprehensive nighttime ozone climatology. GOMOS is one of the first new instruments able to contribute to such a climatology. We concentrate on the characterization of the ozone distribution in this region. The monthly latitudinal and seasonal distributions of ozone profiles in this altitude region are shown. The altitude of the mesospheric ozone peak and the semiannual oscillation of the number density are determined. GOMOS is also able to determine the magnitude of the ozone minimum around 80 km. The lowest seasonal mean mixing ratio values are around 0.13 ppm. The faint tertiary ozone peak at 72 km in polar regions during wintertime is observed.
    Citation
    Kyrölä, E.; Tamminen, J.; Leppelmeier, G.W.; Sofieva, V.; Hassinen, S.; Seppälä, A.; Verronen, P.T.; Bertaux, J.L.; Hauchecorne, A.; Dalaudier, F.; Fussen, D.; Vanhellemont, F.; Fanton d'Andon, O.; Barrot, G.; Mangin, A.; Theodore, B.; Guirlet, M.; Koopman, R.; Saavedra de Miguel, L.; Snoeij, P.; Fehr, T.; Meijer, Y.; Fraisse, R. (2006). Nighttime ozone profiles in the stratosphere and mesosphere by the Global Ozone Monitoring by Occultation of Stars on Envisat. , Journal of Geophysical Research Atmospheres, Vol. 111, Issue 24, D24306, DOI: 10.1029/2006JD007193.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4505
    doi: http://dx.doi.org/10.1029/2006JD007193
    scopus: 2-s2.0-34547902836
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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