FORWARD SCATTERING OF UNDERWATER SOUND AND ITS FREQUENCY-DEPENDENCE ON THE MEDIUM

In the interference region of forward scattered sound by thermal inhomogeneities, there appears to exist a dominant thermal patch size for scattering at a given frequency. Several published results are examined and it is shown that over a decade of frequencies, the dominant (or effective) scattering patch size shows an f -512 frequency dependence. It also appears that a minimum patch size of approximately 1 cm is reached and that the frequency selectivity disappears after this value has been reached. © 1979, Acoustical Society of America. All rights reserved.