Accession Number:

AD0786315

Title:

The Design and Performance of a Free-Fall Electro-Magnetic Velocity Profiler (EMVP).

Descriptive Note:

Technical rept.,

Corporate Author:

WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS

Report Date:

1974-07-01

Pagination or Media Count:

126.0

Abstract:

The principles of operation, the construction and the performance are described for a free-fall Electro-Magnetic Velocity Profiler EMVP. The device measures and records weak electric currents produced by the motion of the sea through the geomagnetic field. The electric current measurements as a function of depth are interpreted in terms of the depth variable, horizontal velocity field. A complete velocity profile in 6000 m of water is achieved in about 1 12 hours with an accuracy of about 1 cms at a vertical resolution of 10 m. In addition to velocity, temperature, electrical conductivity and pressure are recorded once per second for a vertical resolution of about 1 m. Modified author abstract

Subject Categories:

  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE