On experience in recording the voice of the sea in the water area of the Black Seaстатья

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[1] On experience in recording the voice of the sea in the water area of the black sea / V. G. Perepelkin, S. N. Kulichkov, I. P. Chunchuzov, I. A. Repina // Izvestiya - Atmospheric and Oceanic Physics. — 2015. — Vol. 51, no. 6. — P. 639–650. Some data on a high frequency in frasound recorded within a range of 2–16 Hz (voice of the sea)in the water area of the Black Sea are given. Different parameters of the recorded nfrasonic signal—the direction and phase velocity of arriving infrasonic waves, spectral composition, and coherence—have been studied. In the course of measurements, both wind an d wave conditions in the water area of the Black Sea have been studied in detail. The collision of two atmospheric vortices was observed a few hours before the first arrivals of infrasonic waves, and the collision of differently directed sea waves was observed during infrasound recording. The direction of the arrivals of infrasonic waves coincides with the direction between the zone of collision of sea waves and the point of infrasound recording. The assumption was made that, in order to explain the observed infrasonic waves, it is necessary to use the mechanism responsible for the emission of infrasound into the atmosphere by standing surface wave s formed due to the nonlinear interaction of surface waves propagating in opposite directions and to take in to account the frequencyfiltering properties of both wind velocity and temperature stratifications of the atmosphere itself along the path of infrasound propagation. This assumption calls for additional verification. [ DOI ]

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