An Expendable Temperature and Velocity Profiler (XTVP),
Abstract
An expendable instrument is described for measuring vertical profiles of relative horizontal velocity and temperature in the upper 750 meters of the ocean. The velocity determinations are based on the principles of electromagnetic induction which govern the weak electric currents induced by the motion of sea water through the earth's magnetic field. The resulting electric current profile corresponds to the velocity profile relative to an unknown, depth-independent reference velocity. The method yields this relative velocity profile with a vertical resolution of 10 meters and an uncertainty of 1 cm/s rms. With a remote surface release (to remove probe from the electric and magnetic disturbances of a vessel) the instrument performs well from the surface to 750 meters.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1980
- Accession Number
- ADP000956
Entities
People
- Robert G. Drever
- Thomas B. Sanford
Organizations
- University of Washington