Estimating the frequency dependent behavior of marine sediment sound speeds using low frequency aircraft sound A. Amiri-Simkooei a , M. Snellen a , D. G Simons b and M. Buckingham c a Acoustic Remote Sensing Group, Delft Institute of Earth Observation and Space Systems, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, Netherlands b Delft University of Technology, P.O. Box Postbus 5048, 2600 GA Delft, Netherlands c Marine Physical Lab, Scripps Institution of Oceanography, UCSD, 9500 Gilman Dr. M/C 0238, La Jolla, CA 92093-0238, USA a.amirisimkooei@tudelft.nl Acoustics 08 Paris 1901