Abstract In recent mesospheric observations with the MU radar at Shigaraki (34.9°N, 136.1°E), Japan, we obtained a couple of wind velocity data showing that a monochromatic inertia-gravity wave was propagating vertically in the mesosphere. The data shows that the velocity amplitude of the wave did not increase exponentially above a height and further shows that the wave-form had broken down at a level. Evaluating the changes of the atmospheric stability in the wave field from the measured wind data and the estimated wave parameters, we show that the breakdown of the wave can be connected with the occurrence of convective instability in the wave field.


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    Title :

    MU radar observation of a mesospheric gravity wave breaking caused by convective instability


    Contributors:
    Muraoka, Y. (author) / Sugiyama, T. (author) / Kawahira, K. (author) / Sato, T. (author) / Tsuda, T. (author) / Fukao, S. (author) / Kato, S. (author)

    Published in:

    Advances in Space Research ; 10 , 10 ; 175-178


    Publication date :

    1990-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English