Geoacoustic inversion in shallow tropical waters for a silty and sandy seabed
Document Type
Article
Date of Original Version
2-1-2016
Abstract
Seabed parameters are inverted from ambient noise measurements at two shallow tropical environments with dissimilar seabed characteristics, a silty and a sandy seabed, using an approach that matches the measured and modeled complex vertical coherence. Coherence is modeled using the Green's function output from the model oases, along with theoretical formulation, for a range independent environment. Genetic algorithm is used to search the model parameter space consisting of sound speed, density, and attenuation in the sediment layers and half-space. Reasonable estimates have been obtained for the silty site, whereas the sandy site gave relatively poor parameter estimates due to reflective seabed and shipping interference.
Publication Title, e.g., Journal
Journal of the Acoustical Society of America
Volume
139
Issue
2
Citation/Publisher Attribution
Sanjana, M. C., G. Latha, and G. R. Potty. "Geoacoustic inversion in shallow tropical waters for a silty and sandy seabed." Journal of the Acoustical Society of America 139, 2 (2016): EL38-EL44. doi: 10.1121/1.4942545.