Movement of acoustic energy in the ocean This book highlights the advantages of the vector phase method in underwater acoustic measurements and presents results of theoretical and experimental studies of the deep open ocean and shallow sea based on vector phase representations. Based on the physical phenomena discovered and compensation of counter streams of energy and vortices of the acoustic intensity vector processes of transmitting acoustic energy of a tonal signal in the real ocean are described. The book also discusses the development of advanced detection tools based on vector phase sonar. This book provides useful content for professionals and researchers working in various fields of applied underwater acoustics.