On transmission of pressure across thermocline to ocean bottom


Jia-chun Le Shanghai Institute of Applied Mathematics and Mechanics,Shanghai University Shanghai,China


A direct route for pressure transmission from free surface to ocean bottom is discussed.The ocean is of infinite horizontal extent,the vertical sound profile is composed of three layers:in the upper(mixing) layer the sound velocity is constant,in the intermediate(thermocline) layer the sound velocity decreases exponentially with the depth,and in the lower layer the sound velocity increases linearly with the depth.Equations with easily found closedform solutions are obtained,and the pressure at the bottom depends upon the sound profile rather than the depth,therefore the effect of free surface may not die out.


Microseism;pressure;waves;thermocline;ocean acoustics.


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Total: 7 articles

  • [1] LE Jia-chun Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China, RANDOM ATMOSPHERIC PRESSURE AT THE FREE SURFACE AND MICROSEISMS IN DEEP OCEAN, Journal of Hydrodynamics,
  • [2] S. C. Das Gupta, On transmission of pressure to ocean bottom for generation of microseisms, Geofisica Pura e Applicata,
  • [3] Pierre Bernard, Short review and recent results on microseisms, Geophysical Surveys,
  • [4] MunkWH, SoundChannelinanExponentiallyStratifiedOcean,withApplicationtoSOFAR,JAcoust, Soc.Am, Society of America (Society of America)


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