Accession Number : ADA133782

Title :   Sound Propagation through a Moderate Coastal Upwelling: Comparison of Modeling Prediction with Experimental Data.

Descriptive Note : Technical document,

Corporate Author : NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT NEW LONDON LAB

Personal Author(s) : Malay,J T ; Scully-Power,P D ; Browning,D G ; Mooers,C N K

PDF Url : ADA133782

Report Date : 22 Aug 1983

Pagination or Media Count : 20

Abstract : In a previous paper, modeling predictions were made for the effect of a coastal upwelling on sound propagation. To verify these results, a sound propagation experiment was conducted across a moderately developed upwelling located at the Sur Canyon off the coast of California. A 1-kHz projector was towed through a sonobuoy field which spanned the upwelling region. A supporting oceanographic survey was made to obtain environmental data input for multi-profile modeling predictions. The relative importance of oceanographic and topographic changes on sound propagation were determined. A follow-on experiment in a fully developed upwelling is planned.

Descriptors :   *Sound transmission, Underwater sound, North Pacific Ocean, Upwelling, Ocean currents, Coastal regions

Subject Categories : Physical and Dynamic Oceanography
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE