A simple method for determining the vertical growth rate of vertical motion at the top of earth's outer core |
| |
| Authors: | Edward R Benton |
| |
| Institution: | Department of Astro-Geophysics, University of Colorado, Boulder, CO 80309 U.S.A. |
| |
| Abstract: | A simple new method is described for extracting, from magnetic observations taken at Earth's surface, the vertical growth rate of vertical motion, ?u/?r, at special isolated points on the top surface of Earth's liquid core. The technique utilizes only the radial component of the frozen-flux induction equation and it requires information only on the radial magnetic field, Br, its horizontal gradient, and its secular variations, ?Br/?t, at the core-mantle boundary. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
