Abstract The UCL 3-dimensional model of the thermosphere has been modified by the addition of tidal forcing near the lower boundary (80 km), in order to simulate the effects of thermal tides propagating up from the lower atmosphere. Tidal forcing of the (2,2), (2,3) and (2,4) semidiurnal tidal modes and the (1,1) diurnal tidal mode has been introduced. The results of simulations with tidal forcing included are compared with observational data and with the results of simulations in which only in-situ tidal forcing mechanisms are present. The introduction of tidal forcing near the lower boundary is shown to improve the general fit of the model data to the observations of the winds and temperatures in the thermosphere. The vertical wavelengths and the heights of dissipation of different tidal modes are compared with the predictions of classical tidal theory. The coupling of semidiurnal and diurnal modes is discussed and the importance of different tidal dissipation processes is investigated.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Numerical simulations of propagating tides in the thermosphere


    Contributors:

    Published in:

    Advances in Space Research ; 12 , 6 ; 117-135


    Publication date :

    1991-01-01


    Size :

    19 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Numerical simulations of the seasonal response of the thermosphere to propagating tides

    Parish, H. / Fuller-Rowell, T.J. / Rees, D. et al. | Elsevier | 1989


    Momentum transfer to the thermosphere by atmospheric tides

    Teitelbaum, H. / Vial, F. | NTRS | 1981


    The Influence of Tides on Composition of the Thermosphere

    Müller-Wodarg, I. | Online Contents | 1998


    The Influence of Tides on Composition of the Thermosphere

    Mueller-Wodarg, L. / Aylward, A. D. / International Council of Scientific Unions; Committee on Space Research; Scientific Commission C | British Library Conference Proceedings | 1998


    Mars Dust-driven Tides and Their Impact on the Thermosphere

    Bougher, S. W. / Zurek, R. W. / United States et al. | British Library Conference Proceedings | 1994