Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [215869]
Validation of adjoint-generated environmental gradients for the acoustic monitoring of a shallow water area
Meyer, M.; Hermand, J.-P.; Berrada, M.; Asch, M. (2008). Validation of adjoint-generated environmental gradients for the acoustic monitoring of a shallow water area. J. Acoust. Soc. Am. 123(5): 3510. dx.doi.org/10.1121/1.2934408
In: The Journal of the Acoustical Society of America. American Institute of Physics: New York. ISSN 0001-4966; e-ISSN 1520-8524, more
Peer reviewed article  

Available in  Authors 
Document type: Summary

Authors  Top 

Abstract
    In the framework of the recent Maritime Rapid Environmental Assessment sea trial MREA07/BP'07 [Le Gac&Hermand, 2007] that was conducted in the same area south of the island of Elba as the earlier Yellow Shark trial (YS94), this paper examines the original YS94 acoustic data and the recent MREA07 oceanographic data to demonstrate adjoint-based acoustic monitoring of environmental parameters in Mediterranean shallow waters. First, adjoint-generated environmental gradients are validated for the application in geoacoustic inversion where the bottom acoustic parameters of the YS94 layered seabed are determined from the long-range waterborne propagation of a multi-frequency signal. Then, for the application in ocean acoustic tomography, the temporal variability of the MREA07/BP'07 oceanographic data is analyzed in terms of empirical orthogonal functions and the adjoint-based inversion scheme is used to track the time-varying sound speed profile of the experimental transect.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors