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The Centre for Maritime Research and Experimentation conducted a geoacoustic inverse experiment in the Mediterranean Sea in the summer of 2012. Among the objectives was to employ an autonomous underwater vehicle to collect acoustic data to invert for properties of the seafloor. Inversion results for the compression wave speed in the bottom and the source spectrum of the during a close approach to the bottom moored vehicle are presented. The estimated wave speed was 1529 m/s ( ). The source spectrum of the was estimated across more than six octaves of frequency.


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