ABSTRACT
One of the main goals of analytical studies of wave propagation in a random medium is to relate the statistical characteristics of a propagating wave to the statistics of the random inhomogeneities occurring in the medium. Therefore, we begin Part II of this book with the statistical description of fluctuations of temperature, velocity, and the concentration of a component dissolved in the medium (section 6.1). Examples of the latter are fluctuations of the water vapor in the atmosphere and salinity in the ocean. For isotropic turbulence, the random inhomogeneities in the medium are often described with von Ka´rma´n, Kolmogorov, and Gaussian spectra (section 6.2). Parameters of these spectra pertinent to the atmospheric surface layer and the upper mixed layer in the ocean are presented.
