A stochastic response surface formulation for the description of acoustic propagation through an uncertain internal wave field

2012 ◽  
Vol 132 (4) ◽  
pp. 2251-2264 ◽  
Author(s):  
Frank Gerdes ◽  
Steven Finette
Keyword(s):  
Internal Wave ◽  
Wave Field ◽  
Response Surface ◽  
Acoustic Propagation ◽  
Stochastic Response ◽  
Internal Wave Field

Low‐frequency acoustic propagation in a shallow water internal wave field

2006 ◽  
Vol 120 (5) ◽  
pp. 3032-3032
Author(s):  
Geoffrey F. Edelmann ◽  
Joseph F. Lingevitch ◽  
David C. Calvo
Keyword(s):  
Internal Wave ◽  
Shallow Water ◽  
Wave Field ◽  
Low Frequency ◽  
Acoustic Propagation ◽  
Internal Wave Field

Acoustic propagation through an internal wave field in a shallow water waveguide

1997 ◽  
Vol 101 (2) ◽  
pp. 789-808 ◽  
Author(s):  
Dirk Tielbürger ◽  
Steven Finette ◽  
Stephen Wolf
Keyword(s):  
Internal Wave ◽  
Shallow Water ◽  
Wave Field ◽  
Acoustic Propagation ◽  
Internal Wave Field

Sound through the internal wave field

1996 ◽  
pp. 141-184 ◽  
Author(s):  
Frank S. Henyey ◽  
Charles Macaskill
Keyword(s):  
Internal Wave ◽  
Wave Field ◽  
Internal Wave Field

scholarly journals The internal wave field in Sau reservoir: Observation and modeling of a third vertical mode

2005 ◽  
Vol 50 (4) ◽  
pp. 1326-1333 ◽  
Author(s):  
Javier Vidal ◽  
Xavier Casamitjana ◽  
Jordi Colomer ◽  
Teresa Serra
Keyword(s):  
Internal Wave ◽  
Wave Field ◽  
Vertical Mode ◽  
Internal Wave Field

scholarly journals Internal Waves and Mixing near the Kerguelen Plateau

2015 ◽  
Vol 46 (2) ◽  
pp. 417-437 ◽  
Author(s):  
Amelie Meyer ◽  
Kurt L. Polzin ◽  
Bernadette M. Sloyan ◽  
Helen E. Phillips
Keyword(s):  
Internal Wave ◽  
Wave Field ◽  
Internal Waves ◽  
Large Scale ◽  
Polar Front ◽  
Frontal Region ◽  
Small Scale ◽  
Kerguelen Plateau ◽  
Flow Strength ◽  
Internal Wave Field

AbstractIn the stratified ocean, turbulent mixing is primarily attributed to the breaking of internal waves. As such, internal waves provide a link between large-scale forcing and small-scale mixing. The internal wave field north of the Kerguelen Plateau is characterized using 914 high-resolution hydrographic profiles from novel Electromagnetic Autonomous Profiling Explorer (EM-APEX) floats. Altogether, 46 coherent features are identified in the EM-APEX velocity profiles and interpreted in terms of internal wave kinematics. The large number of internal waves analyzed provides a quantitative framework for characterizing spatial variations in the internal wave field and for resolving generation versus propagation dynamics. Internal waves observed near the Kerguelen Plateau have a mean vertical wavelength of 200 m, a mean horizontal wavelength of 15 km, a mean period of 16 h, and a mean horizontal group velocity of 3 cm s−1. The internal wave characteristics are dependent on regional dynamics, suggesting that different generation mechanisms of internal waves dominate in different dynamical zones. The wave fields in the Subantarctic/Subtropical Front and the Polar Front Zone are influenced by the local small-scale topography and flow strength. The eddy-wave field is influenced by the large-scale flow structure, while the internal wave field in the Subantarctic Zone is controlled by atmospheric forcing. More importantly, the local generation of internal waves not only drives large-scale dissipation in the frontal region but also downstream from the plateau. Some internal waves in the frontal region are advected away from the plateau, contributing to mixing and stratification budgets elsewhere.

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