DEVELOPMENT OF A GEOACOUSTIC MODEL OF A SHALLOW SEA-FLOOR

A model of a sea bottom is developed using the results of sound field measurements of a water layer in a shallow sea and of a number of sedi ment parameters in a thin upper layer of the sea floor. This model pro vides the possibility of calculating frequency-dependent decay laws of the mean level of a sound field with distance J(r), which are adequat e for experimental horizontal sections of a sound field J(r) over a wi de frequency range. A comparison between the calculated and experiment al horizontal sections of the sound field is presented.