Zusammenfassung
In both the atmosphere and the ocean, the fluid is density stratified, i.e., ρ = ρ(z) (it is also a function of horizontal coordinates and time) so that usually dense fluid underlies lighter fluid. This stratification supports a new class of waves called internal waves. Internal waves are designated as such, because the vertical structure of the waves is oscillatory in z (contrast with the surface gravity wave) and most of the vertical displacement occurs within the fluid as opposed to the upper boundary, as in the gravity wave example we have just studied.
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References
Gill AE (1982) Atmosphere-ocean dynamics. Academic Press, Harcourt Brace & Co., San Diego, pp 662 (especially Chapter 6)
Lighthill J (1978) Waves in fluids. Cambridge University Press, Cambridge, pp 504 (especially Chapter 4)
Munk W (1981) Internal waves and small scale processes. In: Wunsch C, Warren BA (eds) Evolution of physical oceanography. MIT Press, pp 264–291
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© 2003 Springer-Verlag Berlin Heidelberg
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Pedlosky, J. (2003). Internal Gravity Waves. In: Waves in the Ocean and Atmosphere. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05131-3_7
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DOI: https://doi.org/10.1007/978-3-662-05131-3_7
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