Internal Gravity Wave Generation by Vortex Wakes.

1977 ◽  
Author(s):  
S. C. Traugott
Keyword(s):  
Gravity Wave ◽  
Internal Gravity Wave ◽  
Wave Generation

scholarly journals Gravity wave generation by convection and momentum deposition in the mesosphere-lower thermosphere

2013 ◽  
Vol 118 (12) ◽  
pp. 6233-6245 ◽  
Author(s):  
R. A. Vincent ◽  
M. J. Alexander ◽  
B. K. Dolman ◽  
A. D. MacKinnon ◽  
P. T. May ◽  
...  
Keyword(s):  
Gravity Wave ◽  
Lower Thermosphere ◽  
Wave Generation

On parametric instabilities of finite-amplitude internal gravity waves

1982 ◽  
Vol 119 ◽  
pp. 367-377 ◽  
Author(s):  
J. Klostermeyer
Keyword(s):  
Gravity Wave ◽  
Internal Gravity Wave ◽  
Maximum Growth ◽  
Numerical Approach ◽  
Internal Gravity Waves ◽  
Resonant Interaction ◽  
Finite Amplitude ◽  
Interaction Diagram ◽  
Parametric Instabilities ◽  
Boussinesq Fluid

The equations describing parametric instabilities of a finite-amplitude internal gravity wave in an inviscid Boussinesq fluid are studied numerically. By improving the numerical approach, discarding the concept of spurious roots and considering the whole range of directions of the Floquet vector, Mied's work is generalized to its full complexity. In the limit of large disturbance wavenumbers, the unstable disturbances propagate in the directions of the two infinite curve segments of the related resonant-interaction diagram. They can therefore be classified into two families which are characterized by special propagation directions. At high wavenumbers the maximum growth rates converge to limits which do not depend on the direction of the Floquet vector. The limits are different for both families; the disturbance waves propagating at the smaller angle to the basic gravity wave grow at the larger rate.

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