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Dynamics of the Thermosphere During Quiet and Disturbed Conditions

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Part of the book series: NATO Advanced Study Institutes Series ((ASIC,volume 64))

Abstract

The positive temperature gradient and molecular dissipation mechanisms at thermospheric heights result in the nearly linear response of that region to external forcing. A simplified theory of the propagation and generation of acoustic-gravity waves and of planetary waves is outlined using the linearization of the hydrodynamic equations and the superposition of harmonic waves via a Fourier series of a Fourier integral. The main energy sources at thermospheric heights are solar XUV, wave dissipation, Joule heating, and Ampere forcing. Basic wind configurations are then calculated which are generated by the predominant, harmonically- varying heat and momentum sources of magnetospheric origin.

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© 1980 D. Reidel Publishing Company

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Volland, H. (1980). Dynamics of the Thermosphere During Quiet and Disturbed Conditions. In: Deehr, C.S., Holtet, J.A. (eds) Exploration of the Polar Upper Atmosphere. NATO Advanced Study Institutes Series, vol 64. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8417-2_2

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  • DOI: https://doi.org/10.1007/978-94-009-8417-2_2

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-009-8419-6

  • Online ISBN: 978-94-009-8417-2

  • eBook Packages: Springer Book Archive

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