地磁异常 [
dì cí yì cháng]
magnetic anomaly
geomagnetic anomaly
- 有个问题就是想在实验室内再现地磁效果异常困难。
One problem was that it is extremely difficult to recreate the effect in the laboratory. - 利用河北及邻省共17个台站的地磁Z分量资料,统计分析了地磁低点位移的异常特征。
The characteristics of geomagnetic low-value displacement anomalies statistically analyzed by using the geomagnetic Z component data from Hebei and neighboring provinces′ 17 observation stations. - 并认为一次较强地震前,日变低点位移可能有多次异常出现,利用文中提出的地磁交汇法进行追踪预报效果较好。
The low-value displacement anomalies in daily changes may appear many times, and we can get good prediction effect using the method of geomagnetic convergence presented in this paper.