Data analysis and modeling of broadband acoustic propagation perpendicular to internal wave fronts and sand dune crests in the South China Sea

2017 ◽  
Vol 142 (4) ◽  
pp. 2497-2497
Author(s):  
D. Benjamin Reeder ◽  
A. Y. Chang ◽  
Chi-Fang Chen ◽  
Ching-Sang Chiu ◽  
Linus Chiu ◽  
...  
Keyword(s):  
Data Analysis ◽  
South China Sea ◽  
Internal Wave ◽  
South China ◽  
Sand Dune ◽  
Acoustic Propagation ◽  
The South China Sea ◽  
The South ◽  
Wave Fronts ◽  
China Sea

scholarly journals EXPERIMENTAL EVIDENCE OF HORIZONTAL REFRACTION BY NONLINEAR INTERNAL WAVES OF ELEVATION IN SHALLOW WATER IN THE SOUTH CHINA SEA: 3D VERSUS Nx2D ACOUSTIC PROPAGATION MODELING

2010 ◽  
Vol 18 (03) ◽  
pp. 267-278 ◽  
Author(s):  
D. BENJAMIN REEDER ◽  
LINUS Y. S. CHIU ◽  
CHI-FANG CHEN
Keyword(s):  
South China Sea ◽  
Internal Waves ◽  
South China ◽  
Acoustic Propagation ◽  
The South China Sea ◽  
The South ◽  
Wave Fronts ◽  
China Sea ◽  
Propagation Modeling ◽  
Horizontal Refraction

A joint Taiwanese-U.S. field experiment was conducted in the South China Sea (SCS), entitled the South China Sea Oceanic Processes Experiment (Taiwan)/Non-Linear Internal Waves Initiative (US) (SCOPE/NLIWI), the ocean acoustics portion of which occurred during April 12–22, 2007. The acoustics objective was to quantify the temporal and spatial variability in acoustic propagation characteristics on the continental shelf in the presence of locally-generated and trans-basin nonlinear internal waves (NLIW). Broadband (400 Hz center frequency) m-sequence signals transmitted nearly continuously by a source moored near the seabed were received by vertical line arrays at 3 and 6 km range. The acoustic transect was oriented approximately parallel to the wave fronts of the shoaling trans-basin NLIW's which had crossed the deep basin from their origin in the Luzon Strait. The acoustic propagation variability due to strong vertical and horizontal refraction induced by the very large NLIW's creates an extremely complex acoustic field as a function of time and space. Experimental data and numerical acoustic propagation modeling results are presented to (1) examine and estimate the contribution of internal wave induced horizontal refraction to the received acoustic field; and (2) to quantify the range of propagation angles relative to the internal wave fronts within which strong horizontal refraction occurs and 3D propagation models are required to accurately predict the range- and depth-dependent acoustic propagation.

Near‐Inertial Waves and Their Underlying Mechanisms Based on the South China Sea Internal Wave Experiment (2010–2011)

2018 ◽  
Vol 123 (7) ◽  
pp. 5026-5040 ◽  
Author(s):  
Anzhou Cao ◽  
Zheng Guo ◽  
Jinbao Song ◽  
Xianqing Lv ◽  
Hailun He ◽  
...  
Keyword(s):  
South China Sea ◽  
Internal Wave ◽  
South China ◽  
The South China Sea ◽  
Inertial Waves ◽  
The South ◽  
China Sea ◽  
Wave Experiment ◽  
Underlying Mechanisms

Observations of acoustic propagation and geoacoustic inversion affected by subaqueous sand dunes in the South China Sea

2016 ◽  
Vol 140 (4) ◽  
pp. 3013-3013
Author(s):  
Linus Chiu ◽  
Andrea Chang ◽  
Davis B. Reeder ◽  
Ching-Sang Chiu ◽  
Yiing-Jang Yang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Sand Dunes ◽  
Acoustic Propagation ◽  
The South China Sea ◽  
The South ◽  
Geoacoustic Inversion ◽  
China Sea

Acoustic propagation in the South China Sea: Internal waves and sand dunes

2016 ◽  
Vol 140 (4) ◽  
pp. 3013-3013
Author(s):  
D. Benjamin Reeder ◽  
Andrea Y. Chang ◽  
Chi-Fang Chen ◽  
Ching-Sang Chiu ◽  
Linus Y. Chiu ◽  
...  
Keyword(s):  
South China Sea ◽  
Internal Waves ◽  
South China ◽  
Sand Dunes ◽  
Acoustic Propagation ◽  
The South China Sea ◽  
The South ◽  
China Sea
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