A simple 3‐D Gaussian beam sound propagation model for shallow water

1994 ◽  
Vol 95 (5) ◽  
pp. 2437-2440 ◽  
Author(s):  
Homer P. Bucker
Keyword(s):  
Shallow Water ◽  
Gaussian Beam ◽  
Sound Propagation ◽  
Propagation Model

UNDERWATER CHARACTER AND HORIZONTAL PROPAGATION OF AIR-GUN SIGNALS

1998 ◽  
Vol 38 (1) ◽  
pp. 708
Author(s):  
J.D. Penrose ◽  
R.D. McCauley
Keyword(s):  
Shallow Water ◽  
Sound Propagation ◽  
Model Performance ◽  
Low Frequency ◽  
Propagation Model ◽  
Seismic Survey ◽  
Biological Research ◽  
Water Characteristics ◽  
Air Gun ◽  
Development Paths

This paper describes work carried out as part of an APPEA/ERDC supported project, Investigation of the Environmental Effects of Offshore Seismic Survey Activities. In this project biological research concerning the interaction of acoustic signals with marine organisms is linked to sound propagation studies focussed on frequencies, water characteristics and seabed types of relevance to offshore exploration practice. A key feature of the propagation component of the project concerns the extent to which lateral propagation of airgun signals in the water column may be adequately predicted.The study of acoustic propagation in the sea is an integral part of both scientific and defence enquiry. In recent years, the comparatively complex issue of propagation in shallow water, here considered as involving depths of 200 m or less, has received increasing attention. The literature concerning low frequency propagation in shallow water has features in common with seismic literature. Different emphases, however, notably concerning applications, the role of shear waves in solids and the geometry of the propagation environment have largely resulted in separate development paths being adopted by these two related fields. This paper summarises the range of modelling approaches available to predict shallow water propagation, some key issues influencing propagation and the influence of water and seabed parameters on model performance.An illustration of propagation model performance is provided in this paper by comparing the output from a normal mode model KRAKEN, with experimental data obtained using a mono-frequency source in shallow water in Cleveland Bay, Queensland. This offers an opportunity to assess propagation in a complex and, in acoustic terms, poorly classified environment. These results will be complemented in the conference presentation by airgun data obtained in Exmouth Gulf, Western Australia.

scholarly journals Under-ice shallow-water sound propagation and communication in the Baltic Sea

2013 ◽  
Author(s):  
Erland Sangfelt ◽  
Sven Ivansson ◽  
Ilkka Karasalo
Keyword(s):  
Baltic Sea ◽  
Shallow Water ◽  
Sound Propagation ◽  
The Baltic Sea ◽  
The Baltic

scholarly journals Shallow Water Sound Propagation in the Arctic Ocean

1961 ◽  
Vol 33 (11) ◽  
pp. 1674-1674
Author(s):  
K. Hunkins ◽  
H. Kutschale ◽  
T. Herron
Keyword(s):  
Arctic Ocean ◽  
Shallow Water ◽  
Sound Propagation ◽  
The Arctic ◽  
The Arctic Ocean

Numerical investigation of out-of-plane sound propagation in a shallow water experiment

2008 ◽  
Vol 124 (6) ◽  
pp. EL341-EL346 ◽  
Author(s):  
Frédéric Sturm ◽  
Sven Ivansson ◽  
Yong-Min Jiang ◽  
N. Ross Chapman
Keyword(s):  
Shallow Water ◽  
Numerical Investigation ◽  
Sound Propagation ◽  
Out Of Plane ◽  
Plane Sound
Sign in / Sign up

Export Citation Format

Share Document