Accession Number : ADA241360


Title :   Oceanographic and Acoustical Survey of the East Ionian Sea


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Fountoulakis, Radamanthis P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a241360.pdf


Report Date : Sep 1990


Pagination or Media Count : 97


Abstract : A study was conducted in an area off the Hellenic west coast to examine the spatial and time variability of various oceanic parameters, with special emphasis on those effecting ASW operations. Propagation loss runs were conducted using PE and RAYMODE models. The reactions of both models to different bottom morphology and sound speed profiles (seasons) were examined. Between the two models, the PE model was found to be closer to reality than RAYMODE. Results suggest that the application of these models can improve the understanding of sound propagation in the Hellenic seas. The bottom modeling program, BLUG, appears to need improvement.


Descriptors :   *IONIAN SEA , *ACOUSTIC PROPERTIES , MODELS , PARAMETERS , MORPHOLOGY , THESES , TIME , VARIATIONS , PROFILES , SEASONAL VARIATIONS , SURVEYS , SOUND TRANSMISSION , ACOUSTICS , OCEANS , WEST(DIRECTION) , ACOUSTIC VELOCITY , BOTTOM , ANTISUBMARINE WARFARE , TRANSMISSION LOSS , EAST(DIRECTION) , SEASONS , OCEANOGRAPHY , COASTAL REGIONS , PROPAGATION , SPATIAL DISTRIBUTION


Subject Categories : Physical and Dynamic Oceanography
      Geography
      Computer Programming and Software
      Undersea and Antisubmarine Warfare
      Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE