A case study of wave motion above a jet stream flow system observed by an instrumented balloon

Article English OPEN
Barat, Jean ; Cot, Charles (2011)

An analysis is presented of the data obtained from an instrumented balloon rising through a jet stream. Emphasis is placed on the determination of the vertical atmospheric velocity. The analysis of the temperature and velocity perturbations shows evidence of a wave structure propagating upward. An estimation of the vertical flux of horizontal momentum is given. These preliminary results show clearly the ability of our helisonde to measure wave motions with a vertical velocity as low as 0.1 m s-1. The method allows a direct measurement of wave propagation in the stratosphere.DOI: 10.1111/j.1600-0870.1984.tb00263.x
  • References (12)
    12 references, page 1 of 2

    Barat, J. 1982. Some characteristics of clear-air turbulence in the middle stratosphere. J. Atmos. Sci. 11, 2553-2 564.

    Barat, J. and Genie, J. C. 1982. A new tool for the three-dimensional sounding of the atmosphere: the helisonde. J. Appl. Meteorol. 10. 1497-1 505.

    Bcrtin, F.. Testud, J., Kersley, L. and Rees, P. R. 1977. The meteorologicaljet stream as a source of mediumscale gravity waves in the thermosphere: an experimental study. J. Atmos. Ten. Ph.vs. 40, 1161- 1183.

    Chanin. M. L. and Hauchecorne, A. 1981. Lidar observations of gravity and tidal waves in the stratosphere and mesosphere. J. Geophys. Res. 20, 97 15-972 I .

    Holton. J. R. 1982. The r6le of gravity wave induced dray and dillitsion in the momentum budget of the mesosphere.J. Armos. Sci. 39.79 1-799.

    Lalas, D.P. and Einaudi, F. 1980. Tropospheric gravity waves: their detection by an influence of ravinsonde balloon data. Q.J. R. Meteorol. SOC.106,855-864.

    Lily. D. K. and Kennedy, P.J. 1973. Observation of a stationary mountain wave and its associated momentum flux and energy dissipation. J. Armos. Sci. 30. 1135-1 152.

    Lindzen, R. S. 1981. Turbulence and stress due to gravity wave and tidal breakdown. 1. Geophys. Res. 86.9707-9714.

    Massman, W. J. 1981. An investigation of gravity waves on a global scale using twerk data. 1. Geophys. Res. 86,40724082.

    Matsuno, T. 1982. A quasi-one-dimensionalmodel of the middle atmosphere circulation interacting with internal gravity wave. J. Meteorol. Soc. Japan, Special Issue in commemoration of the Centennial of the MeteorologicalSociety of Japan, 60.2 15-226.

  • Metrics
    No metrics available
Share - Bookmark