Dynamics of the upper atmosphere

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Dordrecht: D. Reidel Publishing Company, 1980. — 233 p.
This book is a mathematically oriented introduction to the dynamics of the earth's upper atmosphere, with special emphasis on acoustic-gravity and tidal waves and their ionospheric effects. The basic equations governing atmospheric motions and the equilibrium state of the atmosphere are presented in 1st Chapter. In Chapter 2 the perturbation equations about the basic state are examined for an isothermal plane atmosphere. The dispersion equation relating wave frequency and horizontal and vertical wavelengths is then examined in detail to determine the propagation characteristics of the waves. Several examples of the excitation of these waves by simple sources are then considered. Finally the ionospheric perturbations due to these atmospheric waves will be considered. Chapter 3 is devoted to the development of the theory of atmospheric tides, i.e. global oscillations on a non-isothermal spherical atmosphere with periods which are an integral fraction of a day. Classical tidal theory will be presented in considerable mathematical detail, due both to its continuing relevance today and its value as a mathematical training for students. In addition, recent developments in tidal theory and observations will be presented. Chapter 4 is a brief introduction to the electrodynamics of the ionosphere. Basic plasma concepts are introduced, with an emphasis on anisotropic electrical conductivities and ionospheric currents. Chapter 5 is then devoted to a thorough discussion of the dynamo theory, which explains quiet time magnetic perturbations as the results of current flows in the ionosphere driven by tidal winds.

Author(s): Kato S.

Language: English
Commentary: 1645371
Tags: Науки о Земле;Метеорология и климатология