临汾台地磁转换函数变化与邻区地震的关系

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英文篇名：Geomagnetic short-period variation at Linfen station and the earthquake in the neighbouring area 中文刊名：地震地磁观测与研究 英文刊名：Seismological and Geomagnetic Observation and Research 作者：闫计明 ; 张美仙 英文作者：Yan Jiming and Zhang Meixian ( Seismological Bureau of Shanxi Province ; Taiyuan 030002 ; China ) 中文关键词：临汾 ; 地磁 ; 转换函数 ; 地震 英文关键词：Linfen ; geomagnetic ; transfer function ; earthquake 出版日期：2002-06-25 机构：山西省地震局,山西省地震局 中国太原030002 ,中国太原030002 年：2002 期：03 出版单位：地震地磁观测与研究

摘要

利用转换函数的方法对临汾台1988年1月至1998年12月地磁资料进行了计算处理,用所得到的转换函数A、B的模A、B及总方差zd的月变化,来考察地震前后地下电性结构的变化。对1988年以来发生在临汾台及周边地区的3次Ms4.0以上地震前后临汾台地磁转换函数的变化情况进行了研究。结果表明:不同周期的转换函数A、B以及总方差zd在震前有明显变化。
Based on the geomagnetic data of Linfen station from Jan. 1998 to Dec. 1998, the monthly variation of the modules A and B of transfer function A and B and total variance zd were worked out by using transfer characteristic method, in order to study variation of electrical property of structure underground before and after eartyquake. The variation of the geomagnetic transfer function of Linfen station before and after 3 earthquake larger than Ms4.0, occurred in Linfen station and its adjacent area since 1988, were investigated. The result shows that there were obvious changes for the transfer function A, B and total variance zd with various period before the occurrence of the earthquakes.

引文

兰宁,蒙和平,曾小平等.1998.宁夏地区地磁转换函数变化与近夺的关系[J].地震地磁观测与研究,4,61～66