Accession Number:

AD0761170

Title:

Preliminary Evaluation of an Active Sonar System for Measuring the Fine Structure of the Thermocline

Descriptive Note:

Technical rept.

Corporate Author:

OCEAN AND ATMOSPHERIC SCIENCE INC DOBBS FERRY NY

Personal Author(s):

Report Date:

1971-12-27

Pagination or Media Count:

29.0

Abstract:

A downward-looking, large-area array, active sonar system has been proposed as a means for monitoring the passage of submerged objects by measuring the backscatter off the altered thermal microstructure. The evaluations here show that the problem is contrast, with the biological backscatter as the limiting factor, so that a large array appears necessary. The degree to which the remnants of the thermocline structure, after passage, would further limit the system are not yet known. As an experimental plan, other unknowns are the desired frequency of operation as well as the required sophistications of the sonar.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE