Abstract
The path‐integral theory of ocean acoustic fluctuations was systematically introduced in a book, Sound transmission through a fluctuating ocean, by S. M. Flatte, R. Dashen, W. H. Munk, K. M. Watson, and F. Zachariasen (Cambridge U. P., Cambridge, 1979). The theory establishes three regions of fluctuation behavior for acoustic fluctuations along a single deterministic ray caused by internal waves: unsaturated, partially saturated, and fully saturated. Emphasis in this talk will be placed on the saturated regions. A review of progress in comparison of the theory with experiment will be given. Discussion will include results involving second moments (the coherence function of space and time separations, and appropriate Fourier transforms thereof), fourth moments (the scintillation index and spectra of intensity), higher moments (corrections to Rayleigh statistics for the intensity p.d.f.), as well as spectra of phase and log intensity. [Work supported by ONR, Code 425UA.]
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