DECAY LAW FOR COHERENT ACOUSTIC FIELD INTENSITY IN COASTAL ZONE

A decay law is obtained for coherent acoustic field intensity along the ray in the ocean coastal zone simulated by a homogeneous two-dimensional wedge in the process of multiple sound reflection by the disturbed surface and the floor of the ocean. A simple algorithm is constructed. An exact solution of a problem on characteristic rays is obtained on the basis of this algorithm. The results of numerical calculations of the decay law are given for different values of the problem parameters. It is demonstrated that an especially simple solution is obtained in the case of the ray invariant application.