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The field of a point monochromatic sound source in the stratified ocean perturbed by a large scale flow. (Russian. English summary) Zbl 0615.76108
For general system of hydrodynamic equations the method of normal modes in the case of a point sound source in stratified ocean perturbed by a current is advanced. The comparison with analogous results for the case of quasi-potential equation gives the possibility to estimate the effect of replacement of generalized equation of state by approximating the state equation.

76V05 Reaction effects in flows
76Q05 Hydro- and aero-acoustics
86A05 Hydrology, hydrography, oceanography
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