The relative effects of sound‐speed variability in the water column versus the seabed on normal‐mode propagation in shallow water

2004 ◽  
Vol 116 (4) ◽  
pp. 2535-2535 ◽  
Author(s):  
George V. Frisk ◽  
Cynthia J. Sellers ◽  
Luiz L. Souza
Keyword(s):  
Shallow Water ◽  
Water Column ◽  
Normal Mode ◽  
Sound Speed ◽  
Mode Propagation

Analysis of shallow-water experimental acoustic data including a comparison with a broad-band normal-mode-propagation model

2001 ◽  
Vol 26 (3) ◽  
pp. 308-323 ◽  
Author(s):  
D.G. Simons ◽  
R. McHugh ◽  
M. Snellen ◽  
N.H. McCormick ◽  
E.A. Lawson
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Broad Band ◽  
Propagation Model ◽  
Mode Propagation ◽  
Acoustic Data

Influence of Sound Speed Profile on Source Localization at Different Depths

2017 ◽  
Vol 25 (02) ◽  
pp. 1750026 ◽  
Author(s):  
L. Su ◽  
L. Ma ◽  
S. M. Guo
Keyword(s):  
Shallow Water ◽  
Normal Mode ◽  
Source Localization ◽  
Sound Speed ◽  
Speed Profile ◽  
Sound Speed Profile ◽  
Different Depths ◽  
Negative Gradient

The effect of sound speed profile (SSP) mismatch on source localization in shallow-water waveguides with a typical negative gradient (or thermocline) is studied numerically and experimentally. The results are interpreted using a normal mode model and a ray model. It is found that a matched-field processor is insensitive to SSP mismatch for sources above the thermocline. In addition, the sensitivity of the processor to SSP mismatch increases with the depth of sources above the thermocline.

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