Normal‐mode sound propagation in an ocean with sinusoidal surface waves

1986 ◽  
Vol 80 (1) ◽  
pp. 238-243 ◽  
Author(s):  
G. V. Anand ◽  
Mathews K. George
Keyword(s):  
Surface Waves ◽  
Normal Mode ◽  
Sound Propagation ◽  
Sinusoidal Surface

MHD surface waves in high- and low-beta plasmas. Part 1. Normal-mode solutions

1989 ◽  
Vol 42 (1) ◽  
pp. 75-89 ◽  
Author(s):  
Z. E. Musielak ◽  
S. T. Suess
Keyword(s):  
Magnetic Field ◽  
Surface Waves ◽  
Normal Mode ◽  
General Structure ◽  
Normal Modes ◽  
Resonant Absorption ◽  
Normal Surface ◽  
Phase Mixing ◽  
Cold Plasmas ◽  
The Waves

Since the first paper by Barston (1964) on electrostatic oscillations in inhomogeneous cold plasmas, it has been commonly accepted that all finite layers with a continuous profile in pressure, density and magnetic field cannot support normal surface waves but instead the waves always decay through phase mixing (also called resonant absorption). Here we reanalyse the problem by studying a compressible current sheet of a general structure with rotation of the magnetic field included. We find that all inhomogeneous layers considered in the high-β plasma limit do not support normal modes. However, in the limit of a low-β plasma there are some cases when normal-mode solutions are recovered. The latter means that the process of resonant absorption is not common for all inhomogeneous layers.

Sound propagation in shallow water with surface waves

2004 ◽  
Vol 116 (4) ◽  
pp. 2550-2550
Author(s):  
Chris T. Tindle ◽  
Grant B. Deane
Keyword(s):  
Surface Waves ◽  
Shallow Water ◽  
Sound Propagation

Shallow water sound propagation with surface waves

2005 ◽  
Vol 117 (5) ◽  
pp. 2783-2794 ◽  
Author(s):  
Chris T. Tindle ◽  
Grant B. Deane
Keyword(s):  
Surface Waves ◽  
Shallow Water ◽  
Sound Propagation
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