地球内核的旋转与磁性

Rotation and Magnetism of Earth's Inner Core.

作者信息

Glatzmaier GA, Roberts PH

机构信息

G. A. Glatzmaier, Institute of Geophysics and Planetary Physics, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. E-mail:

出版信息

Science. 1996 Dec 13;274(5294):1887-91. doi: 10.1126/science.274.5294.1887.

DOI:10.1126/science.274.5294.1887

PMID:8943197

Abstract

Three-dimensional numerical simulations of the geodynamo suggest that a super- rotation of Earth's solid inner core relative to the mantle is maintained by magnetic coupling between the inner core and an eastward thermal wind in the fluid outer core. This mechanism, which is analogous to a synchronous motor, also plays a fundamental role in the generation of Earth's magnetic field.

摘要

地球发电机的三维数值模拟表明，地球固态内核相对于地幔的超旋转是由内核与流体外核中向东的热风之间的磁耦合维持的。这种类似于同步电动机的机制在地球磁场的产生中也起着重要作用。