Inertia-gravity wave breaking in three dimensions. Part II: Convectively unstable waves

The three-dimensional breakdown of a large-amplitude, convectively unstable inertia-gravity wave is examined numerically as a function of primary-wave frequency and amplitude. The results confirm that near-inertial waves break down preferentially via shear instability even when the primary wave is i...

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Bibliographic Details
Published in:Journal of the atmospheric sciences 1998-08, Vol.55 (15), p.2489-2501
Main Authors: LELONG, M.-P, DUNKERTON, T. J
Format: Article
Language:English
Subjects:
Atmospheric pressure
Earth, ocean, space
Exact sciences and technology
External geophysics
General circulation. Atmospheric waves
Gravity waves
Meteorology
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Summary:The three-dimensional breakdown of a large-amplitude, convectively unstable inertia-gravity wave is examined numerically as a function of primary-wave frequency and amplitude. The results confirm that near-inertial waves break down preferentially via shear instability even when the primary wave is initially overturned.
ISSN:0022-4928
1520-0469
DOI:10.1175/1520-0469(1998)055<2489:IGWBIT>2.0.CO;2