Abstract
The conditions under which the interaction between internal waves and the rough bottom topography may be the reason for synchronous fluctuations of pressure at the bottom have been studied. Disturbances of the depth are assumed to be small compared with the mean depth of the ocean, and the Väisälä-Brunt frequency is constant. It is shown that synchronous fluctuations of pressure exist with a frequency equal to that of internal waves. The amplitude of pulsations can be approximately an order lower than the amplitude of fluctuations generated by standing surface waves. However, local maxima can exist in the low-frequency minimum of the spectrum of microseisms (in the range of 20–1000 s).
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Translated by Mikhail M. Trufanov.
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Zhdanov, M.A., Solov'ev, S.L. On the possible generation of low-frequency microseisms by internal waves in the ocean. Soviet Journal of Physical Oceanography 1, 443–446 (1990). https://doi.org/10.1007/BF02196998
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DOI: https://doi.org/10.1007/BF02196998