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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39284


    Title: EFFECT OF THE WAVE SHEAR INTERACTION ON GRAVITY-WAVE ACTIVITY IN THE LOWER AND MIDDLE ATMOSPHERE
    Authors: KUO,FS;LUE,HY
    Contributors: 物理研究所
    Keywords: LOWER STRATOSPHERE;RAYLEIGH LIDAR;MESOSCALE VARIABILITY;UNIVERSAL SPECTRUM;MU RADAR;MESOSPHERE;FLUCTUATIONS;TURBULENCE;MOTIONS;TROPOSPHERE
    Date: 1994
    Issue Date: 2010-07-08 14:10:50 (UTC+8)
    Publisher: 中央大學
    Abstract: Observational results of the wave activities and the vertical wave number spectra of the horizontal wind fluctuations and the temperature density fluctuations in the lower and middle atmosphere obtained by various groups using different instruments at different locations are reviewed and summarized. Then, we use a simple analytic model of wave shear interaction to explain the wave-energy dissipation observed in the stratosphere/lower mesosphere. the east west anisotropy of the wave propagation. and the deceleration of the zonal mean flow, in summer and in winter in the middle mesosphere, the annual variation in the upper troposphere/stratosphere/lower mesosphere. and the semi-annual variation in the middle mesosphere. We also point out that the saturation spectra observed in the middle mesosphere and the winter troposphere are caused by wave motions in the strong background wind shear and the low stability temperature profile, and that the saturation spectrum is universally N2/2m3 (where N is the Brunt Vaisala frequency and m is the vertical wave number).
    Relation: JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS
    Appears in Collections:[物理研究所] 期刊論文

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