Accession Number : ADA180578

Title :   Design Study of Remote Sensing for Ocean Surface and Interior Activity.

Descriptive Note : Final rept. 1 Jul 85-30 Sep 86,

Corporate Author : TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS

Personal Author(s) : Chotiros,Nicholas P.

Report Date : 31 DEC 1986

Pagination or Media Count : 116

Abstract : This is a study to determine the feasibility of using acoustic instruments to observe upper ocean processes. The processes include surface gravity waves, upper ocean turbulence, Langmuir cells and near currents, and internal waves. The acoustic surface backscatter and the acoustic volume backscatter from bubbles and suspended matter will allow the processes to be observed and tracked. The main issues are spatial resolution, volume coverage, sampling rate, and velocity measurement or tracking accuracy. The acoustic properties of the scatterers were modeled to determine signal detectability, hence volume coverage and resolution. Existing velocity measurement techniques and a new tracking method were also modeled. From all the submodels, a system performance prediction model was constructed, from which recommendations were made regarding sonar configuration, operating frequencies, and other system specifications. Keywords: Remote sensing.

Descriptors :   *ACOUSTIC SCATTERING, *OCEAN SURFACE, *REMOTE DETECTORS, *SONAR EQUIPMENT, *OCEAN MODELS, ACOUSTIC PROPERTIES, BACKSCATTERING, VOLUME, INTERNAL, CURRENTS, RATES, SAMPLING, SONAR, SURFACE PROPERTIES, BUBBLES, INTERNAL WAVES, TRACKING, DETECTION, RESOLUTION, SPATIAL DISTRIBUTION, GRAVITY WAVES, SURFACE WAVES, SPECIFICATIONS, OCEANS, MEASUREMENT, METHODOLOGY, VELOCITY, MODELS, TURBULENCE, ACOUSTIC DETECTORS, SUBSURFACE, PLANKTON, UNDERWATER ACOUSTICS, OCEAN WAVES, SUSPENDED SEDIMENTS, ACOUSTIC TRACKING, PERFORMANCE(ENGINEERING), PREDICTIONS, ACCURACY, SIGNALS

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE