MEASUREMENTS PERTAINING TO OCEAN CURRENTS BY GEOMAGNETIC INDUCTION

摘要

The variations in the magnitudes and the directions of horizontal ocean currents are measured as a function of depth. A measuring probe falls to a predetermined depth and is carried by the current. The probe has a circuit within which a varying electric potential is induced by the earth's magnetic field. This potential is a function of the velocity of the probe and the velocity of the sea water. Data derived from this potential and the related sea water temperature and pressure are used to derive detailed vertical characteristic profiles of ocean currents.