Title :
Shallow-water bottom reverberation measurements
Author :
Stanic, Steve ; Goodman, Ralph R. ; Briggs, Kevin B. ; Chotiros, Nicholas P. ; Kennedy, Edgar T.
Author_Institution :
Naval Res. Lab., Stennis Space Center, MS, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
High-frequency bottom reverberation measurements were made at an experimental site in the Gulf of Mexico. The acoustic data were taken as a function of frequency (40-180 kHz) and grazing angle (40-33°). The measured acoustic reverberation results are compared to predictions made by models developed by Jackson et al. (1986, 1996) and Boyle and Chotiros (1995). The models used inputs from the analysis of sediment cores and stereophotography. The model predictions show differences from each other and from the data. The results show reverberation-level variabilities as a function of frequency that cannot be accurately predicted by these models
Keywords :
backscatter; oceanographic regions; reverberation; seafloor phenomena; sediments; ultrasonic scattering; underwater sound; 40 to 180 kHz; Gulf of Mexico; HF bottom reverberation measurements; acoustic reverberation; covariance analysis; frequency dependence; grazing angle dependence; model predictions; reverberation-level variabilities; scattering parameters; sediment cores; shallow-water bottom reverberation; stereophotography; underwater acoustics; Acoustic measurements; Acoustic scattering; Frequency; Laboratories; Oceans; Predictive models; Reverberation; Sea floor; Sea measurements; Sediments;
Journal_Title :
Oceanic Engineering, IEEE Journal of
