Browsing Reprints by Subject "Underwater topography"

Now showing items 1-4 of 4

    • Correlation of backscatter with bottom topography 

      Denney, M. R.; Jones, A. D. (NATO. SACLANTCEN, 1993/08)
      Practical data from low frequency sonar operations in shallow water has been analysed to demonstrate that a high degree of correlation exists between the received signal due to bottom hackscattering and the hottom gradient ...

    • Effects of topographic blockage and ocean boundaries on low frequency noise fields 

      Anderson, Aubrey; Martin, Robert; Marshall, Samuel (NATO. SACLANTCEN, 1982/06)
      Low frequency noise in most ocean areas is dominated by shipping or industrial noise. The composite noise field is the result of radiated energy from each discrete noise source propagating over relatively large distances ...

    • Some acoustic effects of internal macrostructure 

      Mellen, Robert H.; Browning, David G. (NATO. SACLANTCEN, 1975/10)
      Some recent experimental developments relating to internal oceanographic- acoustic interactions are reviewed. Besides amplitude and phase fluctuations, a major concern is scattering into shadow regions. Associated oceanographic ...

    • The seamount as a noise barrier 

      Medwin, Herman; Childs, Emily; Jordan, Edgar A. (NATO. SACLANTCEN, 1982/06)
      When the path from a localized noise source is intercepted by a seamount the shielded noise consists of a diffracted component and, if the seamount is close to a sufficiently smooth ocean surface , a multiply-reflected ...