Characterization of marine seismic survey inter-pulse sound field in an Arctic shallow-water environment

2016 ◽  
Author(s):  
Shane Guan ◽  
Joseph F. Vignola ◽  
John A. Judge ◽  
Diego Turo
Keyword(s):  
Shallow Water ◽  
Water Environment ◽  
Sound Field ◽  
Seismic Survey ◽  
Shallow Water Environment ◽  
Pulse Sound ◽  
Marine Seismic

STUDY ON SINGLE-MODE EXCITATION IN TIME-VARIANT SHALLOW WATER ENVIRONMENT

2014 ◽  
Vol 22 (01) ◽  
pp. 1440001
Author(s):  
DAYONG PENG ◽  
TIANFU GAO ◽  
JUAN ZENG
Keyword(s):  
Shallow Water ◽  
Recursive Algorithm ◽  
Water Environment ◽  
Sound Field ◽  
Single Mode ◽  
Shallow Water Environment ◽  
Mode Excitation ◽  
Ocean Environment ◽  
Short Time ◽  
Function Matrix

Single-mode excitation is a powerful tool for studying many oceanographic processes. Meanwhile, the complex time-variant ocean environment poses a great challenge for single-mode excitation because Green's function matrix of sound field changes quickly. In their previous work, the authors built a system to excite single-mode in a relative simple environment. The purpose of this paper is to study the feasibility of single-mode excitation in rapidly time-variant ocean environment. An improved recursive algorithm is presented to adapt for time-variant environment where the single-mode can be excited within very short time by this algorithm. A typical time-variant shallow water environment is simulated, and results of the single-mode excitation in this environment are presented.

scholarly journals Adjoint approach to the physical characterization of a shallow‐water environment

2006 ◽  
Vol 119 (5) ◽  
pp. 3247-3247
Author(s):  
Matthias Meyer ◽  
Jean‐Pierre Hermand ◽  
Mohamed Berrada ◽  
Mark Asch
Keyword(s):  
Shallow Water ◽  
Water Environment ◽  
Physical Characterization ◽  
Shallow Water Environment ◽  
Adjoint Approach

Hawaii Experimental Acoustics Range for Shallow Water Applications

2011 ◽  
Vol 45 (3) ◽  
pp. 69-76 ◽  
Author(s):  
Tom Fedenczuk ◽  
Eva-Marie Nosal
Keyword(s):  
Shallow Water ◽  
Water Environment ◽  
Shallow Water Acoustics ◽  
Central Node ◽  
Long Baseline ◽  
Wide Range ◽  
Shallow Water Environment ◽  
Near Shore ◽  
Monitoring And Surveillance ◽  
Passive Acoustic

AbstractShallow water acoustics provide a means for monitoring and surveillance of near-shore environments. This paper describes the current and future capabilities of the low- to high-frequency Hawaii Experimental Acoustics Range (HEAR) that was designed to facilitate a wide range of different shallow water acoustics experiments and allow researchers from various institutions to test various array components and configurations. HEAR is a portable facility that consists of multiple hydrophones (12‐16) cabled independently to a common central node. The design allows for variable array configurations and deployments in three modes: experimental (off boats and piers), autonomous, and cabled. An application of HEAR is illustrated by the results from a deployment at Makai Research Pier, Oahu, Hawaii. In this deployment, HEAR was configured as a long-baseline range of two volumetric subarrays to study passive acoustic tracking capabilities in a shallow water environment.

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