Analysis on the Causes of Low-Point Displacement Anomaly in Daily Variation of Z Component of Geomagnetic Field
详细信息
- 责任者：Hu Jiuchang (Earthquake Administration of Hainan Province ; Haikou 570203 ; China)
- 刊名：Earthquake
- 出版年：2011
- 卷期：31(2)
- 关键词：地磁场长期变化 ; secular variations of geomagnetic field ; 地震前兆 ; precursor ; 中国 ; China
- 页码：p.79-86
- 图表：5 illus., 16 refs.
- 分类号：0500
- issnNo：ISSN1000-3274
- isbnNo：CN11-1893/P
摘要
This paper analyzed the characteristics of spatio-temporal evolving of low-point displacement anomaly and the intrinsic and extrinsic equivalent eddy electric current system of the Earth, and proposed the “electromagnetism effect of stove” to explain the cause of low-point displacement. Solar quiet daily variation (Sq), originated. The results in the unceasingly rising of temperature and pressure, finally has the material phase transition, and causes the conductivity change, and also leads the eddy electric current system to evolve from single eddy electric current system to double and more eddy electric current system. This might be the cause of low-point displacement anomaly in daily variation of Z component of geomagnetic field.
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