A Geo-Acoustic Model Based on Empirical Formula

Abstract:

The paper presented a practical geo-acoustic model based on empirical formula. On the base of Hamilton geo-acoustic model, we divided seabed into two layers with semi-infinite space: settled layer and base layer. In the settled layer, velocity of longitudinal wave, density and attenuation coefficient changed with depth of the settled layer changing. This paper assumed that the settled layer had more important impact on the sound field than the base layer. Numerical calculation results show that the effective depth of the seabed is about one wavelength. The geo-acoustic model based on the empirical formula can reduce the uncertainty of sound field calculation, and provide a good way for geo-acoustic inversion.

• Periodical: Applied Mechanics and Materials (Volumes 333-335)
• Pages: 130-134
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.333-335.130
• Online since: July 2013
• Authors: Zhong Yi Cao, Jun Yong
• Keywords: Empirical Formula, Hamilton Geo-Acoustic Model, Settled Layer

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