AbstractTwo rocket borne in situ measurements of neutral air turbulence profiles in the polar summer mesosphere were performed during the MIDAS/SOLSTICE campaign in June 2001 from the Andøya Rocket Range (69°N). Both profiles reveal typical energy dissipation rates for summer conditions with maximum values of ∼1000mW/kg near the mesopause corresponding to heating rates of ∼100 K/d. The morphology of the turbulent layers in both flights is very different. In the first flight almost the complete altitude range from 81 to 90 km is filled with turbulence. With the help of accompanying high resolution wind measurements with foil clouds we identify dynamical instabilities as sources for these turbulent events. The second flight shows only two single turbulent layers of 1 km thickness. A dynamical instability near the upper turbulent layer also suggests that an unstable flow created this turbulent event.


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    Title :

    Morphology of turbulence in the polar summer mesopause region during the MIDAS/SOLSTICE campaign 2001


    Contributors:
    Müllemann, A. (author) / Rapp, M. (author) / Lübken, F.-J. (author)

    Published in:

    Advances in Space Research ; 31 , 9 ; 2069-2074


    Publication date :

    2003-02-12


    Size :

    6 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Morphology of Turbulence in the Polar Summer Mesopause Region During the MIDAS/SOLSTICE Campaign 2001

    Mullemann, A. / Rapp, M. / Lubken, F.-J. et al. | British Library Conference Proceedings | 2003



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    Mitchell, J. D. / Walter, D. J. / Croskey, C. L. | British Library Online Contents | 1997


    Charged Aerosols and Electrical Structure of the Polar Summer Mesopause Region

    Mitchell, J. D. / Walter, D. J. / Croskey, C. L. et al. | British Library Conference Proceedings | 1997