Vladimir A. Shchurov  Galina F. Ivanova  Marianna V. Kuyanova  Helen S. Tkachenko

(V.I. Il'ichev Pacific Oceanological Institute, Far Eastern Branch,

 Russian Academy of Sciences 43 Baltiyskaya St., Vladivostok, Russia 690041)

Revised Nov. 27, 2006

Abstract  Results of field studies of underwater dynamic noise energy flux directivity at two wind speeds, 6 m/s and 12 m/s, in the 400 Hz to 700 Hz frequency band in the deep open ocean are presented. The measurements were made by a freely drifting telemetric combined system at 500 m depth. Statistical characteristics of the horizontal and vertical dynamic noise energy flux directivity are considered as functions of wind speed and direction. Correlation between the horizontal dynamic noise energy flux direction and that of the wind was determined; a mechanism of the horizontal dynamic noise energy flux generation is related to the initial noise field scattering on ocean surface waves.

PACS number: 43.30