Accession Number : ADP000959

Title :   Remote Velocity Measurements from Doppler Sonar,

Corporate Author : SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB

Personal Author(s) : Pinkel,Robert

Report Date : FEB 1980

Pagination or Media Count : 7

Abstract : Remote measurements of the oceanic velocity field can be obtained with Doppler backscattering sonars. While Doppler scattering methods have been used for the past 30 years to make local flow measurements, it is only recently that their remote ranging capabilities have been seriously exploited. Currently, velocity measurements have been made to a range of approx. or equal to 1.5 km, with 20 m range resolution and 1 cm/sec velocity precision, using a sonar mounted on the Research Platform Flip. In this paper Doppler sonar principles are briefly introduced and examples of these data are presented.

Descriptors :   *Oceanographic equipment, *Doppler sonar, *Remote detectors, *Ocean currents, Backscattering, Plankton, Measurement, Velocity, Doppler effect, Sonar transducers, Systems analysis, Acoustic beams, Radial velocity, Data transmission systems, Range(Distance)

Distribution Statement : APPROVED FOR PUBLIC RELEASE