Accession Number : AD0757698

Title :   The Characterization of Acoustic Variability in the Ocean.

Descriptive Note : Technical rept.,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Burnett,Thomas D.

Report Date : OCT 1972

Pagination or Media Count : 74

Abstract : The temporal and spacial variation in one-way transmission loss as experienced in the ocean due to short term temporal and small scale spacial variation in the acoustic environment is examined. This variation is characterized as a function of the transmission frequency, transmission range, source and receiver depths, predominant thermal structure and geographical locality. The results obtained clearly indicate that variability in transmission loss is indeed dependent upon the relative position of source and receiver within the acoustic medium as well as the nature of the acoustic medium. Suggestions are made as to the nature of the influences which control this variation. (Author)

Descriptors :   (*UNDERWATER SOUND, ATTENUATION), OCEAN WAVES, UNDERWATER SOUND EQUIPMENT, THERMAL PROPERTIES, SEA WATER, REGRESSION ANALYSIS

Subject Categories : Physical and Dynamic Oceanography
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE