SOME RECENT DEVELOPMENTS IN GEODYNAMO THEORY

被引：5
|
作者：
BRAGINSKY, SI [1 ]
机构：
[1] UNIV CALIF LOS ANGELES,INST GEOPHYS & PLANETARY PHYS,LOS ANGELES,CA 90024
来源：
PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1990年 / 2卷 / 06期
关键词：
D O I：
10.1063/1.859570
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A geodynamo of model-Z type is presented. A characteristic feature of such a model is that, even if core-mantle coupling is weak, it has a significant effect. A nonstationary solution was obtained in which the axial dipole strength varies periodically. By comparing the period of this oscillation with the archeomagnetically observed period, the electrical conductivity of the Earth's core was estimated. © 1990 American Institute of Physics.
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页码：1446 / 1449
页数：4
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