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Accession Number:
AD0745313
Title:
Arctic Site Survey
Corporate Author:
AEROPHYSICS RESEARCH CORP BELLEVUE WA
Report Date:
1972-07-12
Abstract:
The report discusses the development of a ray tracing program for calculating the sound intensity from sources in the ocean with surface and bottom reflections. Salinity and temperature gradients have been taken into consideration to calculate the sound velocity and absorption loss. The sound intensity is calculated by energy considerations included in the ray tube of adjacent rays. A formula has also been developed for calculating the intensity along a ray without considering the variation in the ray tube area. This involves the calculation of the radius of curvature of the wave front along the ray. Future plans on ray tracing call for the development of techniques for calculating sound intensities in the caustic region and higher order corrections.
Descriptive Note:
Technical rept. 1 Apr-30 Jun 1972
Supplementary Note:
Sponsored in part by DARPA.
Pages:
0007
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
N00014-72-C-0335
Contract Number 2:
ARPA ORDER-1779
File Size:
0.26MB
