Measurement and Interpretation of Motional Electric Fields in the Sea

Download or read book Measurement and Interpretation of Motional Electric Fields in the Sea written by Thomas Bayes Sanford and published by . This book was released on 1967 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: The total motional electric current distribution is investigated for a quasi-steady, 3-dimensional ocean current. In order that electric currents associated with time variations in the induced magnetic field be negligible, a restriction is placed on the temporal and spacial variations of the flow. The quasi-static electric potential is calculated for a general flow and for a model of the Gulf Stream. The 3-dimensional solution for the electric potential is particularized for a 2-dimensional current which is broad compared with the ocean's depth. It is shown that for such a broad flow the electric current stream function is proportional to a transport function. The surface expression and total structure of the electric current are calculated for several simple flows and for a cross section of the Gulf Stream. A detailed comparison of several GEK traverses across the Gulf Stream taken in conjunction with hydrographic sections reveals the presence of inertial period oscillations in the surface layers.