Title

Geoacoustic inversion results from the ASIAEX East China Sea Experiment

Document Type

Article

Date of Original Version

10-1-2004

Abstract

This paper presents the results of geoacoustic inversions carried out using data from the Asian Seas International Acoustics Experiment East China Sea. Broadband data from small explosive sources were used for the inversions. Compressional wave speeds in the sediment and basement layers were estimated using a nonlinear, long-range, tomographic inversion technique based on group speed dispersion. This tomographic technique is a hybrid approach that combines a genetic algorithm for global parameter search with a Levenberg-Marquardt method for fine-scale parameter tuning. The results were compared with data from gravity and piston cores and a geophysical survey conducted at the experimental location using a watergun and towed hydrophone array. © 2004 IEEE.

Publication Title

IEEE Journal of Oceanic Engineering

Volume

29

Issue

4

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