摘要
2001-03-09蒙城地震台地磁磁变仪CB-3(观测仪,备份仪)同时出现三个分量动线的跳动,分析表明蒙城地震台地磁总强度F、 垂直强度Z发生变化。 其原因可能是强电流作用下,地下介质电性变化所致。
Jumps appeared on the recording traces of all the three components of the CB-3 type geomagnetic variometers(the observational instrument and standby i nstrument) on march 9,2001. An analysis indicated that variation appeared in the geomagnetic total intensity F and the vertical intensity Z. The variations might be caused by the variations in the electric property of the underground medium due to the action of a strong electric current.
出处
《地震学刊》
CSCD
2002年第1期17-21,共5页
Journal of Seismology
关键词
磁变仪
三分量动线跳动
强电流
介质电性变化
地下介质
蒙城台
geomagnetic variometer
jump on the recording traces of all the three components
strong electric current
variation in electric properties of medium