地球发电机模型中的磁场变化

IF 1 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Izvestiya, Physics of the Solid Earth Pub Date : 2025-08-06 DOI:10.1134/S1069351325700405

M. Yu. Reshetnyak

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引用次数: 0

摘要

地核热源强度的增加降低了偶极磁场的强度。磁场的空间谱变为多极。磁偶极子的变化强度增大，与旋转轴的偏差增大。恒定极性磁带的持续时间与磁偶极子的振幅呈幂律关系。幂函数的指数可以根据偶极子振幅变化两倍。磁场超时子对应于高磁偶极子强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Magnetic Field Variations in Geodynamo Models

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Magnetic Field Variations in Geodynamo Models

Increase in intensity of the heat sources in the Earth’s core reduces intensity of the dipole magnetic field. The spatial spectrum of the magnetic field becomes multipole. The intensity of magnetic dipole variations grows and its deviations from the rotation axis increase. The duration of magnetozones of constant polarity is power-law dependent on the amplitude of the magnetic dipole. The exponent of the power function can vary by a factor of two depending on dipole amplitude. Magnetic field superchrons correspond to high magnetic dipole intensity.

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来源期刊

Izvestiya, Physics of the Solid Earth 地学-地球化学与地球物理

CiteScore

1.60

自引率

30.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Izvestiya, Physics of the Solid Earth is an international peer reviewed journal that publishes results of original theoretical and experimental research in relevant areas of the physics of the Earth''s interior and applied geophysics. The journal welcomes manuscripts from all countries in the English or Russian language.